Overview

overview

10

Static

static

10

stub.exe.exe

windows7_x64

10

Sharing

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General

  • Target

    stub.exe.exe

  • Size

    757KB

  • Sample

    210816-67c9y5kzv2

  • MD5

    35669b181b62e75b0fb238afbab305d7

  • SHA1

    7a04940ca263d45ec1c260f51f3038f226e0f9c8

  • SHA256

    b8484d64fd65294b2c0b8ce8a6edff10306c9d3a171c9a4f11a8a0286018729e

  • SHA512

    cb09dfd25eafa2f623db2cf49a93791d29f0ac2f36ead11b73b8c1b3be307aec7e33655b027dc1b0b0604a8bdaaa711fddefb77c5fc7603092c8da645464b4b1

Score
10/10
darkcometguest16evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:1604

Mutex

DC_MUTEX-WTBJHDT

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    GRgViYo3LNsE

  • install

    true

  • offline_keylogger

    true

  • password

    1234567890

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      stub.exe.exe

    • Size

      757KB

    • MD5

      35669b181b62e75b0fb238afbab305d7

    • SHA1

      7a04940ca263d45ec1c260f51f3038f226e0f9c8

    • SHA256

      b8484d64fd65294b2c0b8ce8a6edff10306c9d3a171c9a4f11a8a0286018729e

    • SHA512

      cb09dfd25eafa2f623db2cf49a93791d29f0ac2f36ead11b73b8c1b3be307aec7e33655b027dc1b0b0604a8bdaaa711fddefb77c5fc7603092c8da645464b4b1

    Score
    10/10
    darkcometguest16evasionpersistencerattrojan

    • 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

    • Deletes itself

    • Loads dropped DLL

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1

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

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks