crimsonrat

General

Target

https://www.dropbox.com/scl/fo/qy2qk79x2gtuwswxjxcla/h?rlkey=9ophpx1zlqaopl8j3d53sf3wi&dl=0
Sample

240327-yyb1saec6z

Score

10^/10

Malware Config

Extracted

Family

crimsonrat

C2

185.136.161.124

Extracted

Family

danabot

C2

51.178.195.151

51.222.39.81

149.255.35.125

38.68.50.179

51.77.7.204

rsa_pubkey.plain

Targets

- Target
  
  https://www.dropbox.com/scl/fo/qy2qk79x2gtuwswxjxcla/h?rlkey=9ophpx1zlqaopl8j3d53sf3wi&dl=0
Score

10^/10

discovery persistence crimsonrat danabot revengerat banker evasion ransomware rat spyware stealer trojan upx modiloader
- CrimsonRAT main payload
- CrimsonRat
  Crimson RAT is a malware linked to a Pakistani-linked threat actor.
  rat crimsonrat
- Danabot
  Danabot is a modular banking Trojan that has been linked with other malware.
  trojan banker danabot
- ModiLoader, DBatLoader
  ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
  trojan modiloader
- Modifies WinLogon for persistence
  persistence
- RevengeRAT
  Remote-access trojan with a wide range of capabilities.
  trojan revengerat
- Suspicious use of NtCreateUserProcessOtherParentProcess
- UAC bypass
  evasion trojan
- Deletes shadow copies
  Ransomware often targets backup files to inhibit system recovery.
  ransomware
- ModiLoader First Stage
- RevengeRat Executable
  stealer
- Disables Task Manager via registry modification
  evasion
- Downloads MZ/PE file
- Drops file in Drivers directory
- Modifies RDP port number used by Windows
- Modifies Windows Firewall
  evasion
- Sets service image path in registry
  persistence
- ACProtect 1.3x - 1.4x DLL software
  Detects file using ACProtect software.
- Checks BIOS information in registry
  BIOS information is often read in order to detect sandboxing environments.
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Drops startup file
- Executes dropped EXE
- Loads dropped DLL
- Modifies system executable filetype association
  persistence
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Registers COM server for autorun
  persistence
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
- Uses the VBS compiler for execution
- Adds Run key to start application
  persistence
- Checks installed software on the system
  Looks up Uninstall key entries in the registry to enumerate software on the system.
  discovery
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
- Legitimate hosting services abused for malware hosting/C2
- Checks system information in the registry
  System information is often read in order to detect sandboxing environments.
- Drops file in System32 directory
- Sets desktop wallpaper using registry
  ransomware
- Suspicious use of SetThreadContext
behavioral1 behavioral2 behavioral3