Overview

overview

10

Static

static

3

471b33a72a...18.exe

windows7-x64

10

471b33a72a...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    471b33a72a12faa8dc66454424f29668_JaffaCakes118

  • Size

    740KB

  • Sample

    240714-2qdfeswbml

  • MD5

    471b33a72a12faa8dc66454424f29668

  • SHA1

    03acee2dd8b832f5575d489d2a4f54c08198f977

  • SHA256

    c8c260a289d1fac4017c74fba353154a926924706d5890125de1bb0819adf56e

  • SHA512

    df91af6dc8f474e404ab0642d99e91ad84de79212a8d9417da0d7abc36da3cce54a130d7f64fb8cb0cdba44e3fecc8b1409b54a713a8ebd7c90e59f7bdb3a161

  • SSDEEP

    12288:3XR2YWp551IHaDJj2bvNRQSpe+BAEXZsZ8ScRyFoC27uy3PWzapVKXVSOq7MPgAu:xxI551I6DJj2bvNRQ1sAEXZsZrcRyOC2

Score
10/10
darkcometguest16_minpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16_min

C2

127.0.0.1:1604

Mutex

DCMIN_MUTEX-AZQ6V5Z

Attributes
  • InstallPath

    DCSCMIN\IMDCSC.exe

  • gencode

    rEkMA6aq0hKE

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    DarkComet RAT

Targets

    • Target

      471b33a72a12faa8dc66454424f29668_JaffaCakes118

    • Size

      740KB

    • MD5

      471b33a72a12faa8dc66454424f29668

    • SHA1

      03acee2dd8b832f5575d489d2a4f54c08198f977

    • SHA256

      c8c260a289d1fac4017c74fba353154a926924706d5890125de1bb0819adf56e

    • SHA512

      df91af6dc8f474e404ab0642d99e91ad84de79212a8d9417da0d7abc36da3cce54a130d7f64fb8cb0cdba44e3fecc8b1409b54a713a8ebd7c90e59f7bdb3a161

    • SSDEEP

      12288:3XR2YWp551IHaDJj2bvNRQSpe+BAEXZsZ8ScRyFoC27uy3PWzapVKXVSOq7MPgAu:xxI551I6DJj2bvNRQ1sAEXZsZrcRyOC2

    Score
    10/10
    darkcometguest16_minpersistencerattrojan

    • 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