Overview

overview

10

Static

static

10

09d74f4a08...d3.exe

windows7-x64

10

09d74f4a08...d3.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    09d74f4a0844a0cb0408350dadb524c6718f2f29955c759004d2ad581a6554d3

  • Size

    289KB

  • Sample

    221001-3t6rtadgbn

  • MD5

    54bb9186dc2d6c617971ff7bc25dc3dd

  • SHA1

    aa3c28ed2ed1e6d6755118d278dd0a6e430d3211

  • SHA256

    09d74f4a0844a0cb0408350dadb524c6718f2f29955c759004d2ad581a6554d3

  • SHA512

    ca346847f0fb5e5e8d4aa48cbff63ec2e49037a6aef57a894698e20454264642526731106442acba8f3327c0272490341d52a10ae80b762c8ef544410cd96030

  • SSDEEP

    6144:tcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37ICnOy7:tcW7KEZlPzCy379Oy7

Score
10/10
darkcometguest16evasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

77.37.166.188:1604

sainote1.ddns.net:1604
Mutex

DC_MUTEX-8JNTXUA

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    i94pz9J1rDkZ

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      09d74f4a0844a0cb0408350dadb524c6718f2f29955c759004d2ad581a6554d3

    • Size

      289KB

    • MD5

      54bb9186dc2d6c617971ff7bc25dc3dd

    • SHA1

      aa3c28ed2ed1e6d6755118d278dd0a6e430d3211

    • SHA256

      09d74f4a0844a0cb0408350dadb524c6718f2f29955c759004d2ad581a6554d3

    • SHA512

      ca346847f0fb5e5e8d4aa48cbff63ec2e49037a6aef57a894698e20454264642526731106442acba8f3327c0272490341d52a10ae80b762c8ef544410cd96030

    • SSDEEP

      6144:tcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37ICnOy7:tcW7KEZlPzCy379Oy7

    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

    • Disables RegEdit via registry modification

      evasion

    • Executes dropped EXE

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      evasion

    • UPX packed file

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

      upx

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Loads dropped DLL

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    • 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

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