Overview

overview

10

Static

static

abd6e01a50...8f.exe

windows7-x64

10

abd6e01a50...8f.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    abd6e01a50393d49ccf055013c9347add2a83e2e735e52aefd9fce1c9f0c868f

  • Size

    604KB

  • Sample

    221123-sx28pace43

  • MD5

    dc25d3ac1d767c4d12879c89602acfcb

  • SHA1

    53464889ff3e1792094e3ceb065539fccc82e9fe

  • SHA256

    abd6e01a50393d49ccf055013c9347add2a83e2e735e52aefd9fce1c9f0c868f

  • SHA512

    45f707f1b13e36ae008ae75efc4957f1f95cf7098c520b94d6fb854c573e1a72b488a1163d55a47129bf7922fabb8dbd982a04f4d20dfff79a1f178eb896e1b4

  • SSDEEP

    12288:nw0S2XJbOAWPnp98pqBlBPh1U35s2dfnRBqU/x4ySG2GR:nnhX0AooO83fdfRwU54yV

Score
10/10
darkcometvictimevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Victim

C2

jrusse.no-ip.org:5050

Mutex

DC_MUTEX-SANCFCW

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    Xl6PgidaJaTh

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    rundll32

Targets

    • Target

      abd6e01a50393d49ccf055013c9347add2a83e2e735e52aefd9fce1c9f0c868f

    • Size

      604KB

    • MD5

      dc25d3ac1d767c4d12879c89602acfcb

    • SHA1

      53464889ff3e1792094e3ceb065539fccc82e9fe

    • SHA256

      abd6e01a50393d49ccf055013c9347add2a83e2e735e52aefd9fce1c9f0c868f

    • SHA512

      45f707f1b13e36ae008ae75efc4957f1f95cf7098c520b94d6fb854c573e1a72b488a1163d55a47129bf7922fabb8dbd982a04f4d20dfff79a1f178eb896e1b4

    • SSDEEP

      12288:nw0S2XJbOAWPnp98pqBlBPh1U35s2dfnRBqU/x4ySG2GR:nnhX0AooO83fdfRwU54yV

    Score
    10/10
    darkcometvictimevasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Executes dropped EXE

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      evasion

    • Checks computer location settings

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

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Hidden Files and Directories

2
T1158

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks