General
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Target
http://www.e.com
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Sample
240402-e58tjshc36
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
http://www.e.com
Resource
win10v2004-20240226-en
Malware Config
Extracted
F:\$RECYCLE.BIN\S-1-5-21-609813121-2907144057-1731107329-1000\IHBKJFD-MANUAL.txt
gandcrab
http://gandcrabmfe6mnef.onion/ea2bc7585733c084
Extracted
C:\Program Files\7-Zip\Lang\DECRYPT_YOUR_FILES.HTML
Targets
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Target
http://www.e.com
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Grants admin privileges
Uses net.exe to modify the user's privileges.
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Renames multiple (1000) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Disables Task Manager via registry modification
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Modifies Windows Firewall
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Sets service image path in registry
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Drops startup file
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Executes dropped EXE
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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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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Sets desktop wallpaper using registry
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MITRE ATT&CK Enterprise v15
Persistence
Account Manipulation
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Account Manipulation
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Defense Evasion
Hide Artifacts
2Hidden Files and Directories
2Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
2Pre-OS Boot
1Bootkit
1