General
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Target
https://files.catbox.moe/iz3lne.zip
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Sample
241121-j3bs9azclb
Malware Config
Targets
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Target
https://files.catbox.moe/iz3lne.zip
Score9/10-
Renames multiple (180) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Downloads MZ/PE file
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A potential corporate email address has been identified in the URL: 9E1005A551ED61CA0A490D45@AdobeOrg
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Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
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Executes dropped EXE
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Loads dropped DLL
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Modifies file permissions
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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Network Share Discovery
Attempt to gather information on host network.
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Drops file in System32 directory
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Suspicious use of SetThreadContext
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UPX packed file
Detects executables packed with UPX/modified UPX open source packer.
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Component Object Model Hijacking
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Component Object Model Hijacking
1Defense Evasion
File and Directory Permissions Modification
1Modify Registry
3Subvert Trust Controls
2Install Root Certificate
1SIP and Trust Provider Hijacking
1Discovery
Browser Information Discovery
1Network Share Discovery
1Peripheral Device Discovery
2Query Registry
6System Information Discovery
5System Location Discovery
1System Language Discovery
1System Network Configuration Discovery
1Internet Connection Discovery
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