General
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Target
https://wearedevs.net/dInfo/JJSploit
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Sample
241012-fhp9csyemm
Malware Config
Targets
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Target
https://wearedevs.net/dInfo/JJSploit
Score10/10-
Chimera
Ransomware which infects local and network files, often distributed via Dropbox links.
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Chimera Ransomware Loader DLL
Drops/unpacks executable file which resembles Chimera's Loader.dll.
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Process spawned unexpected child process
This typically indicates the parent process was compromised via an exploit or macro.
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Renames multiple (3309) 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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Suspicious Office macro
Office document equipped with 4.0 macros.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Executes dropped EXE
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Loads dropped DLL
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Reads user/profile data of web browsers
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application
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Drops desktop.ini file(s)
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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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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Modify Registry
3Subvert Trust Controls
1Install Root Certificate
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1