General

  • Target

    booking.exe

  • Size

    511KB

  • Sample

    231127-m29wfaga57

  • MD5

    a226eda041d000f311b0aec949893793

  • SHA1

    1a6875d6b99f3e798b677cae1392f0f34828d9c9

  • SHA256

    58e9a0f9db0f3c6a74f21fcb3d2f35d1d3b7e3d1a4439495745a00aa9d37b809

  • SHA512

    c5629eb8390a474d8cf4daa6bd277653956b6602ddc1224aa6fe0be3a7d61dc3aa5b2b88a170adab24fe89121730a6b42251e868e37c766867eaa358b71c47f4

  • SSDEEP

    12288:rbgggggeggPgggggg4CzZULwi9qhxLTNokoTk+Dw6Vh:XgggggeggPggggggdzQwi9q3No/k+DwK

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

194.147.140.186:3636

Mutex

43ccfdbf-3b7e-4e9b-8ba1-a71cb6a8b3a8

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    194.147.140.186

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2023-09-07T11:28:37.225341036Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    3636

  • default_group

    GRACE OG

  • 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

    43ccfdbf-3b7e-4e9b-8ba1-a71cb6a8b3a8

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    194.147.140.186

  • 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

      booking.exe

    • Size

      511KB

    • MD5

      a226eda041d000f311b0aec949893793

    • SHA1

      1a6875d6b99f3e798b677cae1392f0f34828d9c9

    • SHA256

      58e9a0f9db0f3c6a74f21fcb3d2f35d1d3b7e3d1a4439495745a00aa9d37b809

    • SHA512

      c5629eb8390a474d8cf4daa6bd277653956b6602ddc1224aa6fe0be3a7d61dc3aa5b2b88a170adab24fe89121730a6b42251e868e37c766867eaa358b71c47f4

    • SSDEEP

      12288:rbgggggeggPgggggg4CzZULwi9qhxLTNokoTk+Dw6Vh:XgggggeggPggggggdzQwi9q3No/k+DwK

    • NanoCore

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

    • Loads dropped DLL

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks