General

  • Target

    86073e6097e1ff9e879b0eb493f173f2.exe

  • Size

    726KB

  • Sample

    250306-v6mwgatxax

  • MD5

    86073e6097e1ff9e879b0eb493f173f2

  • SHA1

    f06a1f7c37604244a80c61a2a22d1686f05626d9

  • SHA256

    c3e019a0502617286408630187c0e19eb146ee3d70e0b9e0390d9e3763e041bc

  • SHA512

    f3ef06f22a8c0d0894e66a25a1f6eca5d8243103b914001a430b3388d34f8c395c320c2e5827ed56c881f52added7461979211c474ebc8444e03610249fe7725

  • SSDEEP

    12288:x/Sp50g7ZeK50g7M1ogf3OKoHdML29Tod5iJRZbvLgC5cJnY/XUr6xIgno8g50g7:Yp5F7AK5F7w/rL5iNbv7OsUr6xIgno5T

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

elroithegodofnsppd.duckdns.org:43366

elroithegodofnsppd.ddnsfree.com:43366

Mutex

4991469e-2d84-4048-8aed-20a53304961e

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    elroithegodofnsppd.ddnsfree.com

  • backup_dns_server

  • buffer_size

    65538

  • build_time

    2024-12-06T15:16:37.862063536Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTE2Ij8+DQo8VGFzayB2ZXJzaW9uPSIxLjIiIHhtbG5zPSJodHRwOi8vc2NoZW1hcy5taWNyb3NvZnQuY29tL3dpbmRvd3MvMjAwNC8wMi9taXQvdGFzayI+DQogIDxSZWdpc3RyYXRpb25JbmZvIC8+DQogIDxUcmlnZ2VycyAvPg0KICA8UHJpbmNpcGFscz4NCiAgICA8UHJpbmNpcGFsIGlkPSJBdXRob3IiPg0KICAgICAgPExvZ29uVHlwZT5JbnRlcmFjdGl2ZVRva2VuPC9Mb2dvblR5cGU+DQogICAgICA8UnVuTGV2ZWw+SGlnaGVzdEF2YWlsYWJsZTwvUnVuTGV2ZWw+DQogICAgPC9QcmluY2lwYWw+DQogIDwvUHJpbmNpcGFscz4NCiAgPFNldHRpbmdzPg0KICAgIDxNdWx0aXBsZUluc3RhbmNlc1BvbGljeT5QYXJhbGxlbDwvTXVsdGlwbGVJbnN0YW5jZXNQb2xpY3k+DQogICAgPERpc2FsbG93U3RhcnRJZk9uQmF0dGVyaWVzPmZhbHNlPC9EaXNhbGxvd1N0YXJ0SWZPbkJhdHRlcmllcz4NCiAgICA8U3RvcElmR29pbmdPbkJhdHRlcmllcz5mYWxzZTwvU3RvcElmR29pbmdPbkJhdHRlcmllcz4NCiAgICA8QWxsb3dIYXJkVGVybWluYXRlPnRydWU8L0FsbG93SGFyZFRlcm1pbmF0ZT4NCiAgICA8U3RhcnRXaGVuQXZhaWxhYmxlPmZhbHNlPC9TdGFydFdoZW5BdmFpbGFibGU+DQogICAgPFJ1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+ZmFsc2U8L1J1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+DQogICAgPElkbGVTZXR0aW5ncz4NCiAgICAgIDxTdG9wT25JZGxlRW5kPmZhbHNlPC9TdG9wT25JZGxlRW5kPg0KICAgICAgPFJlc3RhcnRPbklkbGU+ZmFsc2U8L1Jlc3RhcnRPbklkbGU+DQogICAgPC9JZGxlU2V0dGluZ3M+DQogICAgPEFsbG93U3RhcnRPbkRlbWFuZD50cnVlPC9BbGxvd1N0YXJ0T25EZW1hbmQ+DQogICAgPEVuYWJsZWQ+dHJ1ZTwvRW5hYmxlZD4NCiAgICA8SGlkZGVuPmZhbHNlPC9IaWRkZW4+DQogICAgPFJ1bk9ubHlJZklkbGU+ZmFsc2U8L1J1bk9ubHlJZklkbGU+DQogICAgPFdha2VUb1J1bj5mYWxzZTwvV2FrZVRvUnVuPg0KICAgIDxFeGVjdXRpb25UaW1lTGltaXQ+UFQwUzwvRXhlY3V0aW9uVGltZUxpbWl0Pg0KICAgIDxQcmlvcml0eT40PC9Qcmlvcml0eT4NCiAgPC9TZXR0aW5ncz4NCiAgPEFjdGlvbnMgQ29udGV4dD0iQXV0aG9yIj4NCiAgICA8RXhlYz4NCiAgICAgIDxDb21tYW5kPiIjRVhFQ1VUQUJMRVBBVEgiPC9Db21tYW5kPg0KICAgICAgPEFyZ3VtZW50cz4kKEFyZzApPC9Bcmd1bWVudHM+DQogICAgPC9FeGVjPg0KICA8L0FjdGlvbnM+DQo8L1Rhc2s+

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    43366

  • default_group

    EROI MY GOD

  • enable_debug_mode

    true

  • gc_threshold

    1.0485772e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.0485772e+07

  • mutex

    4991469e-2d84-4048-8aed-20a53304961e

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    elroithegodofnsppd.duckdns.org

  • primary_dns_server

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    false

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8009

Extracted

Family

xworm

Version

5.0

C2

tunhost.duckdns.org:57891

wintun.freemyip.com:57891

87.249.134.68:57891

Attributes
  • install_file

    琀㴀Ā ☀☀ �䔗渀瘀椀爀漀渀洀攀渀琀�眍椀渀搀椀爀�瀝漀眀攀爀猀栀攀氀氀⸀攀砀攀�醀-C schtasks.exe

aes.plain

Targets

    • Target

      86073e6097e1ff9e879b0eb493f173f2.exe

    • Size

      726KB

    • MD5

      86073e6097e1ff9e879b0eb493f173f2

    • SHA1

      f06a1f7c37604244a80c61a2a22d1686f05626d9

    • SHA256

      c3e019a0502617286408630187c0e19eb146ee3d70e0b9e0390d9e3763e041bc

    • SHA512

      f3ef06f22a8c0d0894e66a25a1f6eca5d8243103b914001a430b3388d34f8c395c320c2e5827ed56c881f52added7461979211c474ebc8444e03610249fe7725

    • SSDEEP

      12288:x/Sp50g7ZeK50g7M1ogf3OKoHdML29Tod5iJRZbvLgC5cJnY/XUr6xIgno8g50g7:Yp5F7AK5F7w/rL5iNbv7OsUr6xIgno5T

    • Detect Xworm Payload

    • NanoCore

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

    • Nanocore family

    • Xmrig family

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • XMRig Miner payload

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Creates new service(s)

    • Stops running service(s)

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks