Overview

overview

10

Static

static

1

PO21019612.exe

windows7-x64

10

PO21019612.exe

windows10-2004-x64

10

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General

  • Target

    PO21019612.exe

  • Size

    2.0MB

  • Sample

    230314-jwh9raec43

  • MD5

    72729cee30402c13712d1522aef2974b

  • SHA1

    5e24a49c70260a8cb42469dc41bb6b5f2557ec50

  • SHA256

    70cc71ce250a4ec732a59e30adf100878e93d8f7afd4a923628314b9b0e2dc11

  • SHA512

    16aaeabd94bec9ec836dbdf3efc4373adced6605be74641d694a5795b8c0502377de339e85d7bad058fe100a984dab97f53ac45270c325b7443f3a153c6b0178

  • SSDEEP

    49152:FXQBFvAF1FMSNqZVIx9RcRK1HsWYnowZm:FeFIFCG9RcRK2Pntm

Score
10/10
darkcometnanocoremarch 2023evasionkeyloggerpersistenceratspywarestealertrojan

Malware Config

Extracted

Family

darkcomet

Botnet

MARCH 2023

C2

mjosh6995.ddns.net:1754

Mutex

DC_MUTEX-D2P1SDG

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    vlwkQZyi3NSt

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    chrome

Extracted

Family

nanocore

Version

1.2.2.0

C2

mjosh6995.ddns.net:2023

lisajennyjohn.ddns.net:2023
Mutex

a7795112-1a95-404c-bdfa-d35dc6f40a46

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    lisajennyjohn.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-12-22T21:54:57.028602236Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    2023

  • default_group

    MARCH 2023

  • enable_debug_mode

    true

  • gc_threshold

    1.048576e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.048576e+07

  • mutex

    a7795112-1a95-404c-bdfa-d35dc6f40a46

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    mjosh6995.ddns.net

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Targets

    • Target

      PO21019612.exe

    • Size

      2.0MB

    • MD5

      72729cee30402c13712d1522aef2974b

    • SHA1

      5e24a49c70260a8cb42469dc41bb6b5f2557ec50

    • SHA256

      70cc71ce250a4ec732a59e30adf100878e93d8f7afd4a923628314b9b0e2dc11

    • SHA512

      16aaeabd94bec9ec836dbdf3efc4373adced6605be74641d694a5795b8c0502377de339e85d7bad058fe100a984dab97f53ac45270c325b7443f3a153c6b0178

    • SSDEEP

      49152:FXQBFvAF1FMSNqZVIx9RcRK1HsWYnowZm:FeFIFCG9RcRK2Pntm

    Score
    10/10
    darkcometnanocoremarch 2023evasionkeyloggerpersistenceratspywarestealertrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies security service

      evasion

    • NanoCore

      NanoCore is a remote access tool (RAT) with a variety of capabilities.

      keyloggertrojanstealerspywarenanocore

    • Windows security bypass

      evasiontrojan

    • Disables Task Manager via registry modification

      evasion

    • 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

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

1
T1031

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

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

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks