General

  • Target

    f57da923e5b75ea46065584301fe67aa5f37998630447b53242050397ee93a8f

  • Size

    2.1MB

  • Sample

    221125-j9gm3sgh6x

  • MD5

    eeba4724f521e42ff8a0e784f6a1cb24

  • SHA1

    6970e09618deea73835519ac8134346f57d38e86

  • SHA256

    f57da923e5b75ea46065584301fe67aa5f37998630447b53242050397ee93a8f

  • SHA512

    5a405cc970b5a3d8896fe68bb73bd7288ec632f593db839b2969e070a3bef76ae0c29e4a5b170e3bef441a77a72d64c1250b2fb90c40604bd50fefa48dd5e172

  • SSDEEP

    49152:rPFyoneU8xiPI9yJqw8Ncgz7jo9+OxycuVckvry:rFyonUxi7YwQI+eQ

Malware Config

Extracted

Family

njrat

Version

0.7.3

Botnet

Client

C2

dontreachme3.ddns.net:3604

Mutex

EdgeBrowser.exe

Attributes
  • reg_key

    EdgeBrowser.exe

  • splitter

    123

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

dontreachme3.ddns.net:3601

dontreachme1.ddns.net:3601

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_file

    EpicGames.exe

  • install_folder

    %AppData%

aes.plain

Extracted

Family

nanocore

Version

1.2.2.0

C2

dontreachme3.ddns.net:3603

dontreachme1.ddns.net:3603

Mutex

19a5c2b0-5593-40da-9945-6c6b53e85d75

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    dontreachme1.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-11-15T15:45:18.745530536Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    3603

  • default_group

    Default

  • 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

    19a5c2b0-5593-40da-9945-6c6b53e85d75

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    dontreachme3.ddns.net

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    true

  • set_critical_process

    false

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Extracted

Family

blacknet

Version

v3.7.0 Public

Botnet

Bot

C2

https://furyx.de/panel

Mutex

BN[e5decf896675e5ecc7bbef8ebff8a786]

Attributes
  • antivm

    false

  • elevate_uac

    false

  • install_name

    WindowsUpdate.exe

  • splitter

    |BN|

  • start_name

    50651597687556f33b7fc75d90350b99

  • startup

    false

  • usb_spread

    true

aes.plain

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

dontreachme3.ddns.net:3605

dontreachme1.ddns.net:3605

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    explorer.exe

  • copy_folder

    explorer

  • delete_file

    true

  • hide_file

    true

  • hide_keylog_file

    true

  • install_flag

    true

  • install_path

    %SystemDrive%

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    RuntimeBroker

  • keylog_path

    %AppData%

  • mouse_option

    true

  • mutex

    remcos_ekuntpjjaa

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    RuntimeBroker

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      f57da923e5b75ea46065584301fe67aa5f37998630447b53242050397ee93a8f

    • Size

      2.1MB

    • MD5

      eeba4724f521e42ff8a0e784f6a1cb24

    • SHA1

      6970e09618deea73835519ac8134346f57d38e86

    • SHA256

      f57da923e5b75ea46065584301fe67aa5f37998630447b53242050397ee93a8f

    • SHA512

      5a405cc970b5a3d8896fe68bb73bd7288ec632f593db839b2969e070a3bef76ae0c29e4a5b170e3bef441a77a72d64c1250b2fb90c40604bd50fefa48dd5e172

    • SSDEEP

      49152:rPFyoneU8xiPI9yJqw8Ncgz7jo9+OxycuVckvry:rFyonUxi7YwQI+eQ

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

    • BlackNET

      BlackNET is an open source remote access tool written in VB.NET.

    • BlackNET payload

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Modifies WinLogon for persistence

    • Modifies Windows Defender Real-time Protection settings

    • NanoCore

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

    • Remcos

      Remcos is a closed-source remote control and surveillance software.

    • Turns off Windows Defender SpyNet reporting

    • UAC bypass

    • Windows security bypass

    • njRAT/Bladabindi

      Widely used RAT written in .NET.

    • Async RAT payload

    • Adds policy Run key to start application

    • Executes dropped EXE

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

    • Checks computer location settings

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

    • Drops startup file

    • Loads dropped DLL

    • Windows security modification

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Modifies WinLogon

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks