Overview

overview

10

Static

static

10

hg.exe

windows7-x64

10

hg.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    hg.exe

  • Size

    760KB

  • Sample

    230226-kqhxgagb9v

  • MD5

    cf1fa31e4b8e750e2f9ff5d2563e2cd6

  • SHA1

    b43097d737b0ea7365cea6ad09a51598fb1ff04f

  • SHA256

    f4b3313b4b8135a1e7bce029b33e79ec60376da9bb7faf320f625e6c4a87373f

  • SHA512

    d0f58c9a38bc2295bc28d22857fdab9f82ecfb028de57dbf470ed4df1eefaa08d5b47b1e81b2b7b4a01ad358d0ccc929205f04b23e1d03ce266017e734f12616

  • SSDEEP

    12288:D3OpvNW4a76S/Ddon/m09bbYlIaaMcE2YGhq3vo1RnfAvIESJgoE26yc/RCsvvV:7OA4aWNn/m09fKIaaBEtWq3A1Ov8JgbR

Score
10/10
darkcometguest16evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

considered-stars.at.ply.gg:11659

Mutex

DC_MUTEX-4RAEX72

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    741ngBRSJpQj

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicrosoftUpdate

Targets

    • Target

      hg.exe

    • Size

      760KB

    • MD5

      cf1fa31e4b8e750e2f9ff5d2563e2cd6

    • SHA1

      b43097d737b0ea7365cea6ad09a51598fb1ff04f

    • SHA256

      f4b3313b4b8135a1e7bce029b33e79ec60376da9bb7faf320f625e6c4a87373f

    • SHA512

      d0f58c9a38bc2295bc28d22857fdab9f82ecfb028de57dbf470ed4df1eefaa08d5b47b1e81b2b7b4a01ad358d0ccc929205f04b23e1d03ce266017e734f12616

    • SSDEEP

      12288:D3OpvNW4a76S/Ddon/m09bbYlIaaMcE2YGhq3vo1RnfAvIESJgoE26yc/RCsvvV:7OA4aWNn/m09fKIaaBEtWq3A1Ov8JgbR

    Score
    10/10
    darkcometguest16evasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • 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

    • Executes dropped EXE

    • Loads dropped DLL

    • 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

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

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