Overview

overview

10

Static

static

b93bf2cabe...9f.exe

windows7-x64

10

b93bf2cabe...9f.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b93bf2cabe29c7c8bea31910d1f27823b9157805965223dd50edfb92d3290b9f

  • Size

    1.1MB

  • Sample

    221130-3gq6laee42

  • MD5

    3c16c8b682863f1c9d4e3e2441cd6b01

  • SHA1

    62695fd6b367ffdcff3625769da4ff7c9ba420a1

  • SHA256

    b93bf2cabe29c7c8bea31910d1f27823b9157805965223dd50edfb92d3290b9f

  • SHA512

    24d7bb48fd33a0886ac698ce9d8007dd7f83689a96b8620891189d9b6cb945f12197760a4b407cc8929d728fe4bf3456b13bdcbe8532dc4575798a6e6a7f11f1

  • SSDEEP

    24576:jC3X3AxBxmrbPqnScBsDUoo4gNh7Q8mXc8GxI8Pjj:QXQrxnScuD9gNJ8jUBPn

Score
10/10
darkcometvictimevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Victim

C2

sockproxy1.no-ip.biz:1604

192.168.1.5:1604
Mutex

DC_MUTEX-PT8P9TJ

Attributes
  • InstallPath

    javaupdate.exe

  • gencode

    2QkGDwVCRYJ0

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    javaupdate

Targets

    • Target

      b93bf2cabe29c7c8bea31910d1f27823b9157805965223dd50edfb92d3290b9f

    • Size

      1.1MB

    • MD5

      3c16c8b682863f1c9d4e3e2441cd6b01

    • SHA1

      62695fd6b367ffdcff3625769da4ff7c9ba420a1

    • SHA256

      b93bf2cabe29c7c8bea31910d1f27823b9157805965223dd50edfb92d3290b9f

    • SHA512

      24d7bb48fd33a0886ac698ce9d8007dd7f83689a96b8620891189d9b6cb945f12197760a4b407cc8929d728fe4bf3456b13bdcbe8532dc4575798a6e6a7f11f1

    • SSDEEP

      24576:jC3X3AxBxmrbPqnScBsDUoo4gNh7Q8mXc8GxI8Pjj:QXQrxnScuD9gNJ8jUBPn

    Score
    10/10
    darkcometvictimevasionpersistencerattrojan

    • 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

    • Suspicious use of SetThreadContext

    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

6
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