Overview

overview

10

Static

static

3

82dc3548b3...18.exe

windows7-x64

10

82dc3548b3...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    82dc3548b3bdb2f5ac595a7b10a686b5_JaffaCakes118
  • Size 1.1MB
  • Sample240802-dy5ymstckk
  • SHA256 a594312bae733f5b364d85bbb4116a31d5a40617b1e1487a4f1243cc6e15375d
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
darkcometguest16bootkitdiscoverypersistencerattrojan

Malware Config

Extracted

Family

  • darkcomet

Botnet

  • Guest16

C2

  • yesyoa.no-ip.biz:1337

Mutex

  • DC_MUTEX-F54S21D

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    MlumXEwFRnE1

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target
      82dc3548b3bdb2f5ac595a7b10a686b5_JaffaCakes118
    • Size 1.1MB
    • SHA256 a594312bae733f5b364d85bbb4116a31d5a40617b1e1487a4f1243cc6e15375d
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    darkcometguest16bootkitdiscoverypersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks