Overview

overview

10

Static

static

a0ab89a5bd...93.exe

windows7-x64

10

a0ab89a5bd...93.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    a0ab89a5bd347f53f5ac9360e3a45cfc05a7a8d9d66264c4d734ebe1f894f693

  • Size

    594KB

  • Sample

    221126-y5dsysbh88

  • MD5

    f792868a671695eb5ff716c774ab4474

  • SHA1

    cd6964165c397f984de85ee9cc3ef80a4b23ea7f

  • SHA256

    a0ab89a5bd347f53f5ac9360e3a45cfc05a7a8d9d66264c4d734ebe1f894f693

  • SHA512

    b4a41326705fbe908f4fd6485eaf8b1b409acd5feaf1baa8d9f3eb8f2b4c912ab82e1a712e6cf8db7baa664dba0ff9570fec790819aea24023caaf68801e7545

  • SSDEEP

    12288:g9Zu42qMifMb9yXf1J9pOxsrC3uQOJdy9rHCbLutbK8dTHK/73cI6j:g9ZDy6Mb9ydTpOKCvHCboWiTHx

Score
10/10
darkcometnew1evasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

new1

C2

banrutero.duckdns.org:3462

chapinmaster.aidyn.net:3462
Mutex

DC_MUTEX-UYTP5W4

Attributes
  • InstallPath

    Winlogon.exe

  • gencode

    kCVib9BZgqVh

  • install

    true

  • offline_keylogger

    true

  • password

    22617

  • persistence

    true

  • reg_key

    MicroUpdates

Targets

    • Target

      a0ab89a5bd347f53f5ac9360e3a45cfc05a7a8d9d66264c4d734ebe1f894f693

    • Size

      594KB

    • MD5

      f792868a671695eb5ff716c774ab4474

    • SHA1

      cd6964165c397f984de85ee9cc3ef80a4b23ea7f

    • SHA256

      a0ab89a5bd347f53f5ac9360e3a45cfc05a7a8d9d66264c4d734ebe1f894f693

    • SHA512

      b4a41326705fbe908f4fd6485eaf8b1b409acd5feaf1baa8d9f3eb8f2b4c912ab82e1a712e6cf8db7baa664dba0ff9570fec790819aea24023caaf68801e7545

    • SSDEEP

      12288:g9Zu42qMifMb9yXf1J9pOxsrC3uQOJdy9rHCbLutbK8dTHK/73cI6j:g9ZDy6Mb9ydTpOKCvHCboWiTHx

    Score
    10/10
    darkcometnew1evasionpersistencerattrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      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.

    • 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

Modify Existing Service

1
T1031

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

3
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