Overview

overview

10

Static

static

10

a15fa6cfb6...48.exe

windows7-x64

10

a15fa6cfb6...48.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    a15fa6cfb6f0135b70c435703e7622d38f612ab6d532eb8625e27354315d4948

  • Size

    658KB

  • Sample

    221126-sa9dgsca82

  • MD5

    3826f7f56cb7ac9f519b39101d1db9ba

  • SHA1

    1cf790b1fdce026d7c3815e7b562a09ef6d414e4

  • SHA256

    a15fa6cfb6f0135b70c435703e7622d38f612ab6d532eb8625e27354315d4948

  • SHA512

    7a0011dc6292ae8cca02e65b5b0ab83f118f188ca16ba91fc8bfb6056ae1c9623f9856d2a213662d428607973ffa57916bfaeb55a173390bae6f4e3960d1c251

  • SSDEEP

    12288:e9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hQ:qZ1xuVVjfFoynPaVBUR8f+kN10EBS

Score
10/10
darkcometinfectedevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Infected

C2

iosif1030.no-ip.org:1604

Mutex

DC_MUTEX-D7KVZY7

Attributes
  • InstallPath

    WinNT\WinSxS.exe

  • gencode

    Cpolh8620CyM

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      a15fa6cfb6f0135b70c435703e7622d38f612ab6d532eb8625e27354315d4948

    • Size

      658KB

    • MD5

      3826f7f56cb7ac9f519b39101d1db9ba

    • SHA1

      1cf790b1fdce026d7c3815e7b562a09ef6d414e4

    • SHA256

      a15fa6cfb6f0135b70c435703e7622d38f612ab6d532eb8625e27354315d4948

    • SHA512

      7a0011dc6292ae8cca02e65b5b0ab83f118f188ca16ba91fc8bfb6056ae1c9623f9856d2a213662d428607973ffa57916bfaeb55a173390bae6f4e3960d1c251

    • SSDEEP

      12288:e9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hQ:qZ1xuVVjfFoynPaVBUR8f+kN10EBS

    Score
    10/10
    darkcometinfectedevasionpersistencerattrojan

    • 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

    • Disables RegEdit via registry modification

      evasion

    • Disables Task Manager via registry modification

      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.

    • Loads dropped DLL

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

2
T1031

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

7
T1112

Disabling Security Tools

2
T1089

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