Overview

overview

10

Static

static

10

bfg.scr

windows10-2004-x64

10

Sharing

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General

  • Target

    bfg.scr

  • Size

    659KB

  • Sample

    241224-trlt7a1pas

  • MD5

    34a9decaa4864e2007b841e3b1263761

  • SHA1

    2b69dee1e3a261f75d55221e8117c8a4e044483b

  • SHA256

    bef2ef2eb5e55984a4a647e91058b4f2012eb75cfbf7c69cacb33ade7e7f74cd

  • SHA512

    5c0691f744e2bbeaecca32e5e4f10076ed291672acdb58f0658bd1baff28ac3aa9265fdeeef43c8c383ba4b77ef23560c22e7a2afc1b8a7c95edf4b0ccbcf2f8

  • SSDEEP

    12288:69HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hT:2Z1xuVVjfFoynPaVBUR8f+kN10EBd

Score
10/10
darkcometguest1f63242mdiscoveryevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest1f63242m

C2

rose324-33082.portmap.host:33082

Mutex

DC_MUTEX-E28WFKY

Attributes
  • InstallPath

    MSDCSC\msdcsjc.exe

  • gencode

    Ee0E6MjQSS7Q

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    reahltekaudio

Targets

    • Target

      bfg.scr

    • Size

      659KB

    • MD5

      34a9decaa4864e2007b841e3b1263761

    • SHA1

      2b69dee1e3a261f75d55221e8117c8a4e044483b

    • SHA256

      bef2ef2eb5e55984a4a647e91058b4f2012eb75cfbf7c69cacb33ade7e7f74cd

    • SHA512

      5c0691f744e2bbeaecca32e5e4f10076ed291672acdb58f0658bd1baff28ac3aa9265fdeeef43c8c383ba4b77ef23560c22e7a2afc1b8a7c95edf4b0ccbcf2f8

    • SSDEEP

      12288:69HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hT:2Z1xuVVjfFoynPaVBUR8f+kN10EBd

    Score
    10/10
    darkcometguest1f63242mdiscoveryevasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Darkcomet family

      darkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      evasion

    • Modifies security service

      evasion

    • Windows security bypass

      evasiontrojan

    • Disables RegEdit via registry modification

      evasion

    • Disables Task Manager via registry modification

      evasion

    • 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

    • Executes dropped EXE

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence
    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Defense Evasion

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Impair Defenses

3
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

2
T1562.001

Modify Registry

7
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks