Overview

overview

10

Static

static

10

f64202ae93...0f.exe

windows7-x64

10

f64202ae93...0f.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    f64202ae93fefe71fc7edcb9c2e0aac42ddbe9cd47ebba7a3b1d67157a809c0f

  • Size

    252KB

  • Sample

    240526-fhjrksff3w

  • MD5

    5436fd89630010dfba66ff289ac23e28

  • SHA1

    a2be564e0a3e7d66d337550fdf4ec03c9dc7fc3a

  • SHA256

    f64202ae93fefe71fc7edcb9c2e0aac42ddbe9cd47ebba7a3b1d67157a809c0f

  • SHA512

    7a2b093d7df3c6efd2edc780989fb56c34e753ab564c945bc9d5fcf0e5b1bc7c3cf49e50d80b9d4390720f05d4d8c84bd057e8496de8d7d91943e807d8d02aa8

  • SSDEEP

    6144:XcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37KGVM:XcW7KEZlPzCy37KG

Score
10/10
darkcometguest16evasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

darkness123.ddns.net:1604

Mutex

DC_MUTEX-B5047WK

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    Ct6Ynw33gry6

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      f64202ae93fefe71fc7edcb9c2e0aac42ddbe9cd47ebba7a3b1d67157a809c0f

    • Size

      252KB

    • MD5

      5436fd89630010dfba66ff289ac23e28

    • SHA1

      a2be564e0a3e7d66d337550fdf4ec03c9dc7fc3a

    • SHA256

      f64202ae93fefe71fc7edcb9c2e0aac42ddbe9cd47ebba7a3b1d67157a809c0f

    • SHA512

      7a2b093d7df3c6efd2edc780989fb56c34e753ab564c945bc9d5fcf0e5b1bc7c3cf49e50d80b9d4390720f05d4d8c84bd057e8496de8d7d91943e807d8d02aa8

    • SSDEEP

      6144:XcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37KGVM:XcW7KEZlPzCy37KG

    Score
    10/10
    darkcometguest16evasionpersistencerattrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      evasion

    • Modifies security service

      evasion

    • Windows security bypass

      evasiontrojan

    • UPX dump on OEP (original entry point)

    • 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

    • Loads dropped DLL

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Windows security modification

      evasiontrojan

    • 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

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

Modify Registry

7
T1112

Impair Defenses

2
T1562

Disable or Modify Tools

2
T1562.001

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks