Overview

overview

10

Static

static

10

3911603516...bd.exe

windows7-x64

10

3911603516...bd.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    39116035169ea9c544db5746e7c39729d4072bfe4d792afe02a726fac321ffbd

  • Size

    658KB

  • Sample

    221127-xy7xsacb64

  • MD5

    0adfe43ac6185801448fc4ab1b4e1303

  • SHA1

    f391453f17beeed40cf4a8a232d538b931ecc888

  • SHA256

    39116035169ea9c544db5746e7c39729d4072bfe4d792afe02a726fac321ffbd

  • SHA512

    5626bbb112200b00655c2ab7a7ac4d4897d96e6995043cacadaf99c8d04f250512594cea9fe510af77c9983da1b1614448478f00773c8b47a62dfa64536336fd

  • SSDEEP

    12288:e9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/h/:qZ1xuVVjfFoynPaVBUR8f+kN10EBx

Score
10/10
darkcometsystemevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

System

C2

adknxxxxxx.ddns.net:1604

Mutex

DC_MUTEX-YD9TJ9S

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    TUbLiSM9jJeW

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      39116035169ea9c544db5746e7c39729d4072bfe4d792afe02a726fac321ffbd

    • Size

      658KB

    • MD5

      0adfe43ac6185801448fc4ab1b4e1303

    • SHA1

      f391453f17beeed40cf4a8a232d538b931ecc888

    • SHA256

      39116035169ea9c544db5746e7c39729d4072bfe4d792afe02a726fac321ffbd

    • SHA512

      5626bbb112200b00655c2ab7a7ac4d4897d96e6995043cacadaf99c8d04f250512594cea9fe510af77c9983da1b1614448478f00773c8b47a62dfa64536336fd

    • SSDEEP

      12288:e9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/h/:qZ1xuVVjfFoynPaVBUR8f+kN10EBx

    Score
    10/10
    darkcometsystemevasionpersistencerattrojan

    • Darkcomet

      DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • 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

    • 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

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

1
T1031

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

5
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