results.csv

proc_data.json,"ID,Activity,Detail,Source Path,Destination Path,Timestamp","1,Suspicious file activity,""Multiple renames/moves of files within protected directories indicating possible evasion"", /Users/mac_malware_research/Library/Biome/tmp/.tmp.XX, /.../FocusModes.[Mode], 2024-04-18T19:39:55Z 2,Suspicious activity,""Repeated creation of multiple temporary files with similar naming patterns and zero sizes, indicative of obfuscation or staging"", /Users/mac_malware_research/Library/Biome/tmp/.tmp.XX, N/A, 2024-04-18T19:39:55Z 3,Unusual Binary Execution,Execution of ""BiomeAgent"" binary located in /System/Library/PrivateFrameworks/Support/ with consistent code signing id ""com.apple.BiomeAgent"" but in conjunction with suspicious file manipulations,  /System/Library/PrivateFrameworks Support/... ,N/A, 2024-04-18T19:26:48Z 4,Process Activity,""Multiple process create and memory map events referencing the same legitimate Apple binary, possibly indicating code injection or masquerading"", /System/Library/PrivateFrameworks Support/... ,N/A, 2024-04-18T19:26:48Z 5,Suspicious persistence attempts,""Repeated creation and renaming of files within user app support directories, possibly for persistence"", /Users/mac_malware_research/Library/Biome/streams/... ,N/A, 2024-04-18T19:39:55Z  (Note: Entries included based on detection of repeated file creation, renaming, and execution of system binary with suspicious patterns suggesting obfuscation or staged malicious activity. The binary ""BiomeAgent"" appears consistently signed as ""com.apple.BiomeAgent"" but the context of multiple temporary file manipulations and renames signals potential malicious staging or covert persistence activities.)"
proc_data.json,"Based on the provided JSON log data, the activity appears to involve the repeated creation, renaming, and memory mapping of files located in the directory:"," ``` /Users/mac_malware_research/Library/Biome/streams/restricted/App.InFocus/local/732644426276090 ```  Additionally, there are many instances of the process:  ``` /System/Library/PrivateFrameworks/BiomeStreams.framework/Support/BiomeAgent ```  which is signed by Apple (""com.apple.BiomeAgent"") and appears to be a legitimate Apple component. However, the suspicious activity involves:  - Multiple file creations and renames in ""Biome/streams/restricted"" and related temp directories. - Repeated memory mappings (mmap) of files in ""Biome/streams/restricted/App.InFocus/local/..."". - The consistent use of the same signing ID and executable path, which suggests this process is repeatedly doing similar operations.  While the process itself is from an Apple-supported binary, the context of frequent creation and renaming of files within ""restricted"" directories, especially in combination with repeated mmap operations into temp and cache directories, might indicate malicious activity or exploitation, especially if these are unexpected for the process which normally wouldn't perform such file manipulations (additional context needed).  **Important note:** The process is signed and from Apple, which reduces suspicion but doesn't eliminate potential compromise if an attacker has implanted malicious code within a legitimate binary or is exploiting it.  **Suspicious findings summary:**  - Repeated creation, renaming, and mmap of files in restricted directories associated with ""BiomeAgent"". - Extensive activity in directories related to ""Biome/streams/restricted"", which could be used as hiding or staging areas by malware. - Continuous activity on temp and cache files, common for malware to use for persistence or staging.  ---  **Action:** Investigation should focus on why ""BiomeAgent"" or related processes are accessing restricted paths and performing these file operations. This could be legitimate behavior under certain conditions, but combined with unusual activity, it warrants further examination.  ---  **Note:** Since the activity is within an Apple system process (BiomeStreams), this may in some contexts relate to legitimate system functions, particularly around data collection or health monitoring. But abnormal frequency or context of ""rename"" and ""create"" operations might suggest malicious or suspicious activity.  ---  *(No directly confirmed malicious activity based solely on this log, but the suspicious pattern warrants further in-depth investigation.)*"
proc_data.json,"Based on the provided log data, the following suspicious activities are identified:"," - Multiple instances of creating temporary files in /Users/mac_malware_research/Library/Biome/tmp and renaming files in /Users/mac_malware_research/Library/Biome/compute/sessions which are associated with a framework called BiomeStreams.framework/Support/BiomeAgent, a known legitimate macOS binary but being repeatedly invoked with new temporary files. - Repetitive file creation and renaming patterns, especially involving temporary and session files, can indicate attempts to obfuscate malicious activity or persistence mechanisms. - The consistent usage of a known system binary (com.apple.*) with same code signature, but in conjunction with suspicious temporary file manipulations, warrants further investigation.  However, no direct execution of known malware or unsigned/unusual binaries is observed in this segment. The main point of concern is the correlation of file operations with an unstandardized directory structure and multiple temporary file creations, which are common in malware TTPs (Tactics, Techniques, and Procedures), specifically for persistence or data exfiltration.  Below is a summarized report of suspicious activities extracted from the log:  | EventType | Timestamp (UTC)               | Description                                                                                 | Source Path                                                            | Destination Path                                                                              | |-----------|------------------------------|--------------------------------------------------------------------------------------------|------------------------------------------------------------------------|------------------------------------------------------------------------------------------------| | EventType13 | 2024-04-18T19:39:55.015Z   | File rename involving tmp files in /Users/mac_malware_research/Library/Biome/tmp       | /Users/mac_malware_research/Library/Biome/tmp/.tmp.*                  | /Users/mac_malware_research/Library/Biome/compute/sessions/.../bookmarks/.../FocusModes.* |  **Note**: Repeated creation and renaming in hidden directories and associated with ""BiomeAgent"" (a known legitimate framework) could still be exploited if used maliciously. Need to verify the origin and intent.  ---  Please review the activity and consider further static or dynamic analysis on related files or processes.  *(This report is based solely on file operation patterns observed in the logs provided, without evidence of code execution or unsigned binaries.)*"
proc_data.json,Below are the suspicious activities identified from the provided log data:," - Multiple instances of `/System/Library/PrivateFrameworks/BiomeStreams.framework/Support/BiomeAgent` execution with consistent code signing (`com.apple.BiomeAgent`) but unusual repeated mappings and file operations in temp directories and app-specific folders, indicating suspected malicious activity (e.g., repeated create/rename events, temp file manipulations, and multiple memory maps).  - Specifically, the repeated creation and renaming of numerous temporary files in directories unrelated to typical system operation (e.g., `/Users/mac_malware_research/Library/Biome/tmp/`, `/Users/mac_malware_research/Library/Biome/compute/`, `bookmarks/`) combined with consistent code signature and support paths—common tactics to evade detection.  - Unusual renaming of files in app-specific directories (e.g., `com.apple.proactived/FocusModes.WorkMode`, `FocusModes.GamingMode`, `FocusModes.ReadingMode`) after processes in `/System/Library/PrivateFrameworks/BiomeStreams.framework/Support/BiomeAgent` suggest potentially malicious mechanisms mimicking legitimate services or bypassing sandboxing.  - The presence of `/usr/sbin/cfprefsd`, a legitimate macOS service, but here it's involved in create/rename activities with suspicious temporary files, indicating a possible misuse.  All activities revolve around repeated execution, memory mapping, and file operations involving support and temp directories for a process signing as `com.apple.BiomeAgent`. The pattern suggests covert or malicious behavior disguising as system components.  **Note:** The consistent code signature (""com.apple.BiomeAgent"") with suspicious file operations in temp and user directories should be further investigated. This could be malware masquerading as a legit system support component.  ---  **Output CSV:**  ```csv ActivityType,ProcessPath,EventType,Timestamp,Details Suspicious, /System/Library/PrivateFrameworks/BiomeStreams.framework/Support/BiomeAgent,20,2024-04-18T19:39:55.001,Repeated execution and file manipulations in temp and app support directories with consistent code signature. Suspicious, /usr/sbin/cfprefsd,13,2024-04-18T19:39:58.348,Unusual creation of a temporary file in /usr/sbin/ directory, which is a legitimate system process but activity pattern suggests potential abuse. Suspicious, /System/Library/PrivateFrameworks/SyncedDefaults.framework/Support/syncdefaultsd,13,2024-04-18T19:39:59.030,Repeated process creation in support directory with consistent code signature, possibly hidden malicious worker. ```  This CSV records the suspicious behavior such as repeated process creation, support directory file operations, and renames involving system support paths associated with suspicious activity. Further investigation of the `BiomeAgent` binary is strongly recommended."
proc_data.json,"Based on the analysis of the provided JSON log, I identified several suspicious activities related to the repeated creation, renaming, and memory mapping of files associated with a known system binary (`BiomeAgent` from Apple) located in `/System/Library/PrivateFrameworks/BiomeStreams.framework/Support/`. The activity includes the frequent creation, renaming, and memory mapping of files in the user directory (`/Users/mac_malware_research/Library/Biome/...`) and temporary directories, with patterns indicative of potentially malicious persistence or sandbox bypass attempts."," **Key suspicious indicators:** - Multiple create and rename events involving files in `/Users/mac_malware_research/Library/Biome/streams/restricted/App.InFocus/local/`. - Repeated execution and memory mapping of `BiomeAgent`, which is a legitimate system binary but suspicious given its unusual usage pattern in user directories and high activity. - Files in temporary and user directories (`.tmp.*`, `.tmp.*LiGx`, etc.) being created and renamed rapidly, which is common in malware trying to hide or execute payloads. - Consistent use of a signed system binary (`com.apple.BiomeAgent`) but in a context that suggests abuse or exploitation.  ---  ### **Suspicious Activities Summary (for CSV report):**  | Type                | Timestamp                         | Process Path                                                 | Details                                                      | |---------------------|-----------------------------------|--------------------------------------------------------------|--------------------------------------------------------------| | Multiple create/rename | 2024-04-18 19:39:55 UTC | `/Users/mac_malware_research/Library/Biome/streams/restricted/App.InFocus/local/732644426276090` | Repeated creation and renaming of files in user directory, possibly indicating malicious persistence. | | Memory mapping of Suspicious File | 2024-04-18 19:39:55 UTC | Same path as above | Repeated mmap of the user directory file in suspicious pattern. | | Execution of system binary | Multiple timestamps in sequence | `/System/Library/PrivateFrameworks/BiomeStreams.framework/Support/BiomeAgent` | Found in nearly every event; abuse indication depends on context, but activity pattern raises suspicion. | | Creation of temp files | Multiple in `/Users/mac_malware_research/Library/Biome/tmp/` | Likely temporary files for payload staging or execution hijacking. |  ---  **Note:** Presence of legitimate signed binary `com.apple.BiomeAgent` is common in macOS, but its abnormal usage pattern—especially in conjunction with suspicious file activities—raises potential suspicion of compromise or malware misuse.  ---  This is an example of the key suspicious activity extracted from the log. If you need a full CSV file with detailed entries based on events, I can prepare that accordingly.  **Here is the CSV content:**  ```csv Type,Timestamp,Process Path,Details ""Multiple create/rename"",""2024-04-18 19:39:55 UTC"",""/Users/mac_malware_research/Library/Biome/streams/restricted/App.InFocus/local/732644426276090"",""Repeated creation and renaming of files in user directory, possible persistence activity."" ""Memory mapping of Suspicious File"",""2024-04-18 19:39:55 UTC"",""/Users/mac_malware_research/Library/Biome/streams/restricted/App.InFocus/local/732644426276090"",""Repeated mmap of user directory file in suspicious pattern."" ""Execution of system binary"",""Multiple timestamps in sequence"",""/System/Library/PrivateFrameworks/BiomeStreams.framework/Support/BiomeAgent"",""Repeated execution activity, suspicious in context of suspicious file operations."" ""Creation of temp files"",""Multiple in /Users/mac_malware_research/Library/Biome/tmp/"",""Likely temporary files for payload staging or execution hijacking."" ```  If you want me to create a complete CSV with all entries, please specify."
proc_data.json,"Based on the provided log data, I have identified activities that are suspicious or potentially malicious. Notably:"," - Multiple references to the file path ""/Users/mac_malware_research/Library/Biome/streams/restricted/App.InFocus/local/732644426276090"" being mapped in memory across various process executions, indicating possibly repeated malicious or unauthorized code loading. - Numerous create and rename events involving temporary files and session or configuration files, especially files with names like "".tmp.*"" and "".plst"" associated with macOS processes (e.g., Terminal, cfprefsd) which may be signs of code injection or malware persistence mechanisms. - Repeated execution of ""com.apple.BiomeAgent"" with a consistent code signature hash (cdhash: E6BF640885C8795632FA4661668BEB67C801B8D0) suggests persistence of a possibly malicious or deeply integrated process masquerading as a legitimate system component. - The presence of multiple temporary and hidden files in system and user directories (e.g., /Library/Biome/, /private/var/folders/), indicating activity typical of malware trying to hide or sabotage system settings.  While many process signatures appear to be legitimate Apple binaries, the repetitive loading of files from “restricted/App.InFocus/local” and creation of temp files in suspicious directories, coupled with repeated “BiomeAgent” processes, strongly suggest malicious activity or persistence mechanisms.  ---  ### Summary of suspicious activities (for CSV output):  | Activity Type | Details                                                                                            | Timestamp                        | Suspicious Files/Paths                                                  | Process/Executable Path                                                             | |--------------|-----------------------------------------------------------------------------------------------------|----------------------------------|-------------------------------------------------------------------------|-------------------------------------------------------------------------------------| | Memory mapping | Repeated mapping of ""/Users/mac_malware_research/Library/Biome/streams/restricted/App.InFocus/local/732644426276090"" | 2024-04-18T19:39:55Z | Files in /Library/Biome/streams/restricted/App.InFocus/local/... | /System/Library/PrivateFrameworks/BiomeStreams.framework/Support/BiomeAgent  | | File creation/renaming | Multiple hidden / temporary files (.tmp.* and .plst) in user and system directories | Multiple during timestamp | Files in /Users/mac_malware_research/Library/Biome/tmp/, /private/var/folders, etc. | /System/Library/PrivateFrameworks/BiomeStreams.framework/Support/BiomeAgent  | | Process activity | Consistent launching of ""com.apple.BiomeAgent"" with the same code signature hash (hash: E6BF640885C8795632FA4661668BEB67C801B8D0) | Multiple timestamps | N/A                                                                     | /System/Library/PrivateFrameworks/BiomeStreams.framework/Support/BiomeAgent  |  **Note:** Files named "".tmp.*"" and "".plist"" in suspicious directories may be used for code injection, persistence, or data exfiltration.  ---  ### Next step:  Please review the CSV output generated from this analysis for further investigation."