Overview

overview

10

Static

static

10

JaffaCakes...41.exe

windows7-x64

10

JaffaCakes...41.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    JaffaCakes118_e4600be5b908283eea77837a67528e41
  • Size 749KB
  • Sample250211-j77fqa1mes
  • SHA256 dbc3c401f16b77a0d5d76dd916227f0176f24229d5e5a9f0b42a481f0c4ed7ff
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
darkcometguest16defense_evasiondiscoverypersistencerattrojan

Malware Config

Extracted

Family

  • darkcomet

Botnet

  • Guest16

C2

  • omerexpert.no-ip.biz:1604

Mutex

  • DC_MUTEX-8ZXA5WJ

Attributes
  • InstallPath

    Windupdt\winupdate.exe

  • gencode

    �jECmM$Sp�JN

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    winupdater

rc4.plain

Targets

    • Target
      JaffaCakes118_e4600be5b908283eea77837a67528e41
    • Size 749KB
    • SHA256 dbc3c401f16b77a0d5d76dd916227f0176f24229d5e5a9f0b42a481f0c4ed7ff
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    darkcometguest16defense_evasiondiscoverypersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Darkcomet family

      darkcomet

    • Modifies WinLogon for persistence

      persistence

    • Windows security bypass

      defense_evasiontrojan

    • 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

    • Windows security modification

      defense_evasiontrojan

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks