Overview

overview

10

Static

static

edba3f379b...5b.exe

windows7-x64

10

edba3f379b...5b.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    edba3f379b6c5ad3707b590137606542ac2297bca0ea4768fd708c368d3d0d5b

  • Size

    746KB

  • Sample

    221107-lljtmscdhr

  • MD5

    20043edc446a344432aa3f24c7437356

  • SHA1

    eb5f85a114a5b06f36c3cff254ed13aa9b9f4e9a

  • SHA256

    edba3f379b6c5ad3707b590137606542ac2297bca0ea4768fd708c368d3d0d5b

  • SHA512

    c803c613947b1692449af680e05c043226add64a8e37a7a013a71eea8fd894f2bbb93ded7bc7c96a50eead72b7aba7d7918b5dac0405afee09a967a8006d8173

  • SSDEEP

    12288:/rnjrlZYHQQqQWH5gjXbMKL+bLZMqRKpu5G6pdCtg8aGKazyOT:/rnXL4FWHuTyblMqRKpQG6pdCtg8fzya

Score
10/10
darkcomethfpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

HF

C2

origranot.no-ip.org:82

Mutex

DC_MUTEX-5ALMKC5

Attributes
  • InstallPath

    java32\java.exe

  • gencode

    ziL48cfwSKan

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    java

Targets

    • Target

      edba3f379b6c5ad3707b590137606542ac2297bca0ea4768fd708c368d3d0d5b

    • Size

      746KB

    • MD5

      20043edc446a344432aa3f24c7437356

    • SHA1

      eb5f85a114a5b06f36c3cff254ed13aa9b9f4e9a

    • SHA256

      edba3f379b6c5ad3707b590137606542ac2297bca0ea4768fd708c368d3d0d5b

    • SHA512

      c803c613947b1692449af680e05c043226add64a8e37a7a013a71eea8fd894f2bbb93ded7bc7c96a50eead72b7aba7d7918b5dac0405afee09a967a8006d8173

    • SSDEEP

      12288:/rnjrlZYHQQqQWH5gjXbMKL+bLZMqRKpu5G6pdCtg8aGKazyOT:/rnXL4FWHuTyblMqRKpQG6pdCtg8fzya

    Score
    10/10
    darkcomethfpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • 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

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

3
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks