Overview

overview

10

Static

static

10

004b5a58c2...18.exe

windows7-x64

10

004b5a58c2...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    004b5a58c2f01040de19f33f709c7b59_JaffaCakes118

  • Size

    675KB

  • Sample

    240621-3xrr3awfqe

  • MD5

    004b5a58c2f01040de19f33f709c7b59

  • SHA1

    d2756258c1fc799a3bdecb86565eaa161256780e

  • SHA256

    560ff7b201b8c6e5bb1f6fde654cc3e3c34d05f4741c303ef083553867223ee7

  • SHA512

    ce49dcab2b924d946069beb12f289e395dea363bf3507a39fb569d0ed4eaf8f3d1993e94d5c915d703070e83d2cd27154d337fb14f6e0b46c7a0814f94857871

  • SSDEEP

    12288:uk0QVlhmPojAPTMEsUTg0oChO/Q2JbsbjPbN5qhRTtYe3f+Iw86k/9/+jT:j0QRWoJEfg0oChGdJQbjPbNW5tYeP+G+

Score
10/10
darkcometguest16persistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

dns0ip.zapto.org:81

Mutex

DC_MUTEX-F54S21D

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    pFNA85L2fpNR

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      004b5a58c2f01040de19f33f709c7b59_JaffaCakes118

    • Size

      675KB

    • MD5

      004b5a58c2f01040de19f33f709c7b59

    • SHA1

      d2756258c1fc799a3bdecb86565eaa161256780e

    • SHA256

      560ff7b201b8c6e5bb1f6fde654cc3e3c34d05f4741c303ef083553867223ee7

    • SHA512

      ce49dcab2b924d946069beb12f289e395dea363bf3507a39fb569d0ed4eaf8f3d1993e94d5c915d703070e83d2cd27154d337fb14f6e0b46c7a0814f94857871

    • SSDEEP

      12288:uk0QVlhmPojAPTMEsUTg0oChO/Q2JbsbjPbN5qhRTtYe3f+Iw86k/9/+jT:j0QRWoJEfg0oChGdJQbjPbNW5tYeP+G+

    Score
    10/10
    darkcometguest16persistencerattrojan

    • 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.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks