General

  • Target

    72aa74d8a1251c3376c6346aaeb5bce0N.exe

  • Size

    2.3MB

  • Sample

    240905-ptsy3a1ckm

  • MD5

    72aa74d8a1251c3376c6346aaeb5bce0

  • SHA1

    54e4ba4d9e09f26f0242a6398498a6ba64e18269

  • SHA256

    8834f3d9bea74033c7d66c04af98f8e73be938c30a6ee33f6bb0e03e17a2205c

  • SHA512

    ecaa4edb4b9d24d6de5683436ed3f16b0bf4980d475176dd3c9581e0754282f3869a977415d9b1d478d288e7d89235320b0e7202814d7b8e39b1bf57f049918a

  • SSDEEP

    24576:4hk6VzDDlAslzOhpvYK/P7xdyviebf+dJ03:4

Malware Config

Extracted

Family

xworm

Version

5.0

C2

orounderandudai.ddnsgeek.com:7071

Mutex

PVgn8Cl3GrFDVc8H

Attributes
  • install_file

    USB.exe

aes.plain

Extracted

Family

nanocore

Version

1.2.2.0

C2

e-businessloader.mywire.org:5230

127.0.0.1:5230

Mutex

0be0e5d9-4209-4f88-b4fe-27e7b678a0b5

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-03-16T21:32:38.702958636Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    5230

  • default_group

    e-business

  • 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

    0be0e5d9-4209-4f88-b4fe-27e7b678a0b5

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    e-businessloader.mywire.org

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    true

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Targets

    • Target

      72aa74d8a1251c3376c6346aaeb5bce0N.exe

    • Size

      2.3MB

    • MD5

      72aa74d8a1251c3376c6346aaeb5bce0

    • SHA1

      54e4ba4d9e09f26f0242a6398498a6ba64e18269

    • SHA256

      8834f3d9bea74033c7d66c04af98f8e73be938c30a6ee33f6bb0e03e17a2205c

    • SHA512

      ecaa4edb4b9d24d6de5683436ed3f16b0bf4980d475176dd3c9581e0754282f3869a977415d9b1d478d288e7d89235320b0e7202814d7b8e39b1bf57f049918a

    • SSDEEP

      24576:4hk6VzDDlAslzOhpvYK/P7xdyviebf+dJ03:4

    • Detect Xworm Payload

    • NanoCore

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

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks