Overview

overview

10

Static

static

12b85bcb02...87.exe

windows7_x64

10

12b85bcb02...87.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    12b85bcb0245b64c46003af12413079fb940fb307aeacad8533e442b988a8687

  • Size

    736KB

  • Sample

    220603-rz5wxsdgam

  • MD5

    444b043b54a70aa68bce3cd8a48fbf02

  • SHA1

    4ac6078a960f858bfa9ed7d5a94d7fb54b06f628

  • SHA256

    12b85bcb0245b64c46003af12413079fb940fb307aeacad8533e442b988a8687

  • SHA512

    9ae87b25e615ace26787abc3a0593f6e64766b661ebbde1bea098609fa257af9d3808974f9c2ab38232a0fba26852469473c1788596e6ade19133aaa8e5c26bd

Score
10/10
darkcomethfpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

HF

C2

179.43.150.105:1606

Mutex

DC_MUTEX-CNAFSEW

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    Q9rRWez1PrbJ

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      12b85bcb0245b64c46003af12413079fb940fb307aeacad8533e442b988a8687

    • Size

      736KB

    • MD5

      444b043b54a70aa68bce3cd8a48fbf02

    • SHA1

      4ac6078a960f858bfa9ed7d5a94d7fb54b06f628

    • SHA256

      12b85bcb0245b64c46003af12413079fb940fb307aeacad8533e442b988a8687

    • SHA512

      9ae87b25e615ace26787abc3a0593f6e64766b661ebbde1bea098609fa257af9d3808974f9c2ab38232a0fba26852469473c1788596e6ade19133aaa8e5c26bd

    Score
    10/10
    darkcomethfpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Executes dropped EXE

    • 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

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

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

Tasks