Overview

overview

10

Static

static

10

f8c9537437...46.exe

windows7-x64

10

f8c9537437...46.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    f8c953743723232fd465b173142ebdf43aef121df15b9a962501c759c1f99446

  • Size

    349KB

  • Sample

    221001-3nar7acbd6

  • MD5

    74a3ce4797153d8376da6b3f2b22bdc0

  • SHA1

    f9a78fed8215b8bbca5eabc473a6b4fec00f8142

  • SHA256

    f8c953743723232fd465b173142ebdf43aef121df15b9a962501c759c1f99446

  • SHA512

    d2910a406a01c9535e2f27a5958845b70caa1ff68765b358b0a7d4ad9c8db412a2422ae23c75ad2c44a9e97c984c3672514d88f2d657df9d04941e3e261f4b0c

  • SSDEEP

    6144:kcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37isuPlbL:kcW7KEZlPzCy37i

Score
10/10
darkcometguest16evasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

5.105.126.91:1604

Mutex

DC_MUTEX-VR84THX

Attributes
  • InstallPath

    windows.exe

  • gencode

    65hHZs77nVG3

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      f8c953743723232fd465b173142ebdf43aef121df15b9a962501c759c1f99446

    • Size

      349KB

    • MD5

      74a3ce4797153d8376da6b3f2b22bdc0

    • SHA1

      f9a78fed8215b8bbca5eabc473a6b4fec00f8142

    • SHA256

      f8c953743723232fd465b173142ebdf43aef121df15b9a962501c759c1f99446

    • SHA512

      d2910a406a01c9535e2f27a5958845b70caa1ff68765b358b0a7d4ad9c8db412a2422ae23c75ad2c44a9e97c984c3672514d88f2d657df9d04941e3e261f4b0c

    • SSDEEP

      6144:kcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37isuPlbL:kcW7KEZlPzCy37i

    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

    • 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

    • 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
    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