General

  • Target

    ce7cfc1461bfed84d592ecce5a97019032c20c23c75fe2cf923772143b7dbc50.exe

  • Size

    306KB

  • Sample

    250323-pecnjatlw6

  • MD5

    e1d8cb76cd0f3542094d22d31ed0a745

  • SHA1

    6e69107c2a66f5ba99e5afcefcc76ffb74cb75fc

  • SHA256

    ce7cfc1461bfed84d592ecce5a97019032c20c23c75fe2cf923772143b7dbc50

  • SHA512

    710740a7a38a5ce555844d21be452c817919894a291c012eecc1ed425867a7ab299e4049cedbfc9eb1a48de8c16a7b734d167582f149ec2bafb01fc5176b1524

  • SSDEEP

    6144:uuQDRdq7Ww4MthMtPckBP6T08z/zxWPxZuuOyU:uu2Rw7WwREzolWZZuvh

Malware Config

Extracted

Family

darkcomet

Botnet

FarCry

C2

octopus01.airdns.org:2404

octopus01.ddns.net:2404

Mutex

DC_MUTEX-YGBUNDC

Attributes
  • InstallPath

    Ubisoft\FarCry\FCupdate.exe

  • gencode

    jv2Y4dfih9vp

  • install

    true

  • offline_keylogger

    true

  • password

    V10tt0PC

  • persistence

    true

  • reg_key

    FCUpdate

rc4.plain

Targets

    • Target

      ce7cfc1461bfed84d592ecce5a97019032c20c23c75fe2cf923772143b7dbc50.exe

    • Size

      306KB

    • MD5

      e1d8cb76cd0f3542094d22d31ed0a745

    • SHA1

      6e69107c2a66f5ba99e5afcefcc76ffb74cb75fc

    • SHA256

      ce7cfc1461bfed84d592ecce5a97019032c20c23c75fe2cf923772143b7dbc50

    • SHA512

      710740a7a38a5ce555844d21be452c817919894a291c012eecc1ed425867a7ab299e4049cedbfc9eb1a48de8c16a7b734d167582f149ec2bafb01fc5176b1524

    • SSDEEP

      6144:uuQDRdq7Ww4MthMtPckBP6T08z/zxWPxZuuOyU:uu2Rw7WwREzolWZZuvh

    • Darkcomet

      DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

    • Darkcomet family

    • Modifies WinLogon for persistence

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks