Overview

overview

10

Static

static

5

53378d1cdf...cd.exe

windows7-x64

10

53378d1cdf...cd.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    53378d1cdf29ba3d6281f32d4a787402c750cb60b207565a74f426922a451ccd

  • Size

    2.5MB

  • Sample

    230129-ve5xzaec76

  • MD5

    b85bd40c70b5913df16cac41feae9949

  • SHA1

    88139dbe95928614ab375ef0e3257a925dff0bb7

  • SHA256

    53378d1cdf29ba3d6281f32d4a787402c750cb60b207565a74f426922a451ccd

  • SHA512

    4c57449a1afe32959c5b9760ad065392e4e0b29f3f2323202b4649393a764b71dff03af9aa02a7154f0c24e1855b97eb1b32994aa2b692f0844bd29a1d63535d

  • SSDEEP

    49152:7JZoQrbTFZY1iaJag33A46NOBLtCaW/sXdkWQe9D+nwOWYcu2I7RTp/PwWUlLmY6:7trbTA19as3l8OBL+I7D+nwcP3tY6

Score
10/10
darkcometvictimeevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Victime

C2

shytoos.ddns.net:1604

Mutex

DC_MUTEX-Z8X4H3R

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    JJ52hfcLdTnD

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      53378d1cdf29ba3d6281f32d4a787402c750cb60b207565a74f426922a451ccd

    • Size

      2.5MB

    • MD5

      b85bd40c70b5913df16cac41feae9949

    • SHA1

      88139dbe95928614ab375ef0e3257a925dff0bb7

    • SHA256

      53378d1cdf29ba3d6281f32d4a787402c750cb60b207565a74f426922a451ccd

    • SHA512

      4c57449a1afe32959c5b9760ad065392e4e0b29f3f2323202b4649393a764b71dff03af9aa02a7154f0c24e1855b97eb1b32994aa2b692f0844bd29a1d63535d

    • SSDEEP

      49152:7JZoQrbTFZY1iaJag33A46NOBLtCaW/sXdkWQe9D+nwOWYcu2I7RTp/PwWUlLmY6:7trbTA19as3l8OBL+I7D+nwcP3tY6

    Score
    10/10
    darkcometvictimeevasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      evasion

    • 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.

    • Deletes itself

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

1
T1031

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

3
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