Overview

overview

10

Static

static

10

87e1433bec...c3.exe

windows7_x64

10

87e1433bec...c3.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    87e1433bec2bd9d8fdc02e52d03d29005b82546996d045068ffce11088a660c3

  • Size

    252KB

  • Sample

    220521-xy1hpscgf2

  • MD5

    32307c24db9052003547acd8c7814a09

  • SHA1

    1804e608aef820e4b344e996dbad49276cc237b5

  • SHA256

    87e1433bec2bd9d8fdc02e52d03d29005b82546996d045068ffce11088a660c3

  • SHA512

    7e3db616a5e1e25eb2b94a8a537c90b657f99fa92471c38108eb0e859476a6e5adecfe3ef46da9729cc3605a79c694f74a2a923b4f6e5f9bc5d5515186bca596

Score
10/10
darkcometguest16evasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

kualomakalo.ddns.net:1604

Mutex

DC_MUTEX-3L7FTLT

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    stDkxmBCbxzB

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      87e1433bec2bd9d8fdc02e52d03d29005b82546996d045068ffce11088a660c3

    • Size

      252KB

    • MD5

      32307c24db9052003547acd8c7814a09

    • SHA1

      1804e608aef820e4b344e996dbad49276cc237b5

    • SHA256

      87e1433bec2bd9d8fdc02e52d03d29005b82546996d045068ffce11088a660c3

    • SHA512

      7e3db616a5e1e25eb2b94a8a537c90b657f99fa92471c38108eb0e859476a6e5adecfe3ef46da9729cc3605a79c694f74a2a923b4f6e5f9bc5d5515186bca596

    Score
    10/10
    darkcometevasionpersistencerattrojanupx

    • 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