General

  • Target

    JaffaCakes118_e706a7d486d344c3d0ecb49164b5ec1c

  • Size

    876KB

  • Sample

    250211-q8n44atqdj

  • MD5

    e706a7d486d344c3d0ecb49164b5ec1c

  • SHA1

    382e1e23810aed3f3b6439e1b37702b9bef9aa41

  • SHA256

    8885ab01d97a8f6f1a7ea70021a1594482cde9f89a9cbcffdf7e941c3159d5b4

  • SHA512

    64ab059a84fb1fade395cbae3c46cda191ab173f857817e5140656f4162071ef4a5b1ce74955f38d2068837d27b47c423c7f72762462730c4083e115eac85b40

  • SSDEEP

    24576:nUD3WVqWznA1ICUKy2t0ZeOZ73oGO/bDZE1tcsO:2mMWznA1GKy2mkOZ74p//ZETO

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

zackzm.zapto.org:1604

Mutex

DC_MUTEX-F54S21D

Attributes
  • InstallPath

    Windupdt\winupdate.exe

  • gencode

    �F8J���1uwB%

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    winupdater

rc4.plain

Extracted

Family

darkcomet

Attributes
  • gencode

  • install

    false

  • offline_keylogger

    false

  • persistence

    false

rc4.plain

Targets

    • Target

      JaffaCakes118_e706a7d486d344c3d0ecb49164b5ec1c

    • Size

      876KB

    • MD5

      e706a7d486d344c3d0ecb49164b5ec1c

    • SHA1

      382e1e23810aed3f3b6439e1b37702b9bef9aa41

    • SHA256

      8885ab01d97a8f6f1a7ea70021a1594482cde9f89a9cbcffdf7e941c3159d5b4

    • SHA512

      64ab059a84fb1fade395cbae3c46cda191ab173f857817e5140656f4162071ef4a5b1ce74955f38d2068837d27b47c423c7f72762462730c4083e115eac85b40

    • SSDEEP

      24576:nUD3WVqWznA1ICUKy2t0ZeOZ73oGO/bDZE1tcsO:2mMWznA1GKy2mkOZ74p//ZETO

    • Darkcomet

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

    • Darkcomet family

    • Modifies WinLogon for persistence

    • Downloads MZ/PE file

    • 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.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks