Overview

overview

10

Static

static

3

JaffaCakes...20.exe

windows7-x64

10

JaffaCakes...20.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    JaffaCakes118_29d52fa5cda38a454030bf6522212920

  • Size

    437KB

  • Sample

    250227-bs5dtaztdx

  • MD5

    29d52fa5cda38a454030bf6522212920

  • SHA1

    ffc07f065aa33997c4e67cd40531655375ee7f03

  • SHA256

    a24d7b5185424bd442ae8f09b076fc7e260a4e1d97d284b2b5c2b338dd887b65

  • SHA512

    f07ad74d13096ecfac693b7d04a04ba189da08eb68b9e9aa26ab1ed932f74a2b7d2e70b2a482cc1dfeff047464eda463eb34708659f51da446acc5e1c71bdb1c

  • SSDEEP

    12288:bGfkwc4ybTNaaaqvE9mJ8YrSx3L4mlRBpxgGML2I:CMwVWcYrSZxDI

Score
10/10
darkcometvictimdefense_evasiondiscoverypersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Victim

C2

127.0.0.1:200

Mutex

DC_MUTEX-ZJXMU4C

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    7nT9fkrfTstz

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    rundll32

rc4.plain

Extracted

Family

darkcomet

Attributes
  • gencode

  • install

    false

  • offline_keylogger

    false

  • persistence

    false

rc4.plain

Targets

    • Target

      JaffaCakes118_29d52fa5cda38a454030bf6522212920

    • Size

      437KB

    • MD5

      29d52fa5cda38a454030bf6522212920

    • SHA1

      ffc07f065aa33997c4e67cd40531655375ee7f03

    • SHA256

      a24d7b5185424bd442ae8f09b076fc7e260a4e1d97d284b2b5c2b338dd887b65

    • SHA512

      f07ad74d13096ecfac693b7d04a04ba189da08eb68b9e9aa26ab1ed932f74a2b7d2e70b2a482cc1dfeff047464eda463eb34708659f51da446acc5e1c71bdb1c

    • SSDEEP

      12288:bGfkwc4ybTNaaaqvE9mJ8YrSx3L4mlRBpxgGML2I:CMwVWcYrSZxDI

    Score
    10/10
    darkcometvictimdefense_evasiondiscoverypersistencerattrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Darkcomet family

      darkcomet

    • Modifies WinLogon for persistence

      persistence

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      defense_evasion

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    • UPX packed file

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

      upx
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks