General
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Target
https://github.com/Da2dalus/The-MALWARE-Repo/raw/master/Trojan/MrsMajors/MrsMajor3.0.exe
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Sample
240208-k8bwwadc96
Malware Config
Targets
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Target
https://github.com/Da2dalus/The-MALWARE-Repo/raw/master/Trojan/MrsMajors/MrsMajor3.0.exe
Score10/10-
Dharma
Dharma is a ransomware that uses security software installation to hide malicious activities.
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UAC bypass
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (534) 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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Drops startup file
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Executes dropped EXE
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Loads dropped DLL
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Obfuscated with Agile.Net obfuscator
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
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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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Legitimate hosting services abused for malware hosting/C2
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1