Resubmissions

08-07-2024 18:48

240708-xfyamatapr 10

08-07-2024 18:25

240708-w2l9tascqp 10

General

  • Target

    BloodFMx64x.exe

  • Size

    21.9MB

  • Sample

    240708-w2l9tascqp

  • MD5

    702ab1cadcca9c85d9d3e577d28371c6

  • SHA1

    606addfb7b10515f41e61e5832fdf45abc483bee

  • SHA256

    9f8c98828eecab0beeb2f6db642a2820ba10160379663756cc7723d7df1f7de6

  • SHA512

    7f4304ff36f1a5c9302ecd67d9bc1b3b9e3e15733819d904642856d2b740b827abb8cff7368f3c99e74520bf87fc247297bf6f4b97443a4ac5100ceb9142ce79

  • SSDEEP

    393216:iu7L/sQ1DKmr2pu0tTtdQuslRl99oWOv+9ge6DRXAbejH:iCL0Q1DKmr2puI5dQuqDorvSghRwbO

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

45.74.8.132:1604

127.0.0.1:1604

Mutex

f8d99e2f-2572-4d85-92e4-cf383d156342

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-03-05T17:57:06.415874336Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1604

  • 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

    f8d99e2f-2572-4d85-92e4-cf383d156342

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    45.74.8.132

  • primary_dns_server

    8.8.8.8

  • request_elevation

    false

  • 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

      BloodFMx64x.exe

    • Size

      21.9MB

    • MD5

      702ab1cadcca9c85d9d3e577d28371c6

    • SHA1

      606addfb7b10515f41e61e5832fdf45abc483bee

    • SHA256

      9f8c98828eecab0beeb2f6db642a2820ba10160379663756cc7723d7df1f7de6

    • SHA512

      7f4304ff36f1a5c9302ecd67d9bc1b3b9e3e15733819d904642856d2b740b827abb8cff7368f3c99e74520bf87fc247297bf6f4b97443a4ac5100ceb9142ce79

    • SSDEEP

      393216:iu7L/sQ1DKmr2pu0tTtdQuslRl99oWOv+9ge6DRXAbejH:iCL0Q1DKmr2puI5dQuqDorvSghRwbO

    • NanoCore

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

    • njRAT/Bladabindi

      Widely used RAT written in .NET.

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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.

    • Target

      Creal.pyc

    • Size

      29KB

    • MD5

      813e50b885df76bc8bd3af306f010d7a

    • SHA1

      58a6091cf4915b90baf4625bc43738314d8bab60

    • SHA256

      de51d25a95492d641355c32ee9ce0950500695aabbee0351960bca4aaef13a51

    • SHA512

      28e67885b5440285a6984e924cb06beb26421d3d5b73571c8004be08bcb392d606d04c5ec8d8e5c6d461c5560299ddb278d3d0daf45febcbd09084abcedb5d87

    • SSDEEP

      768:3+lVSjnrr2VsfNEiyAuMMIfznTZMdpV7ISrx5HQtvK17Cvr:30SDrfe3uzTZMB76K176r

    Score
    3/10

MITRE ATT&CK Enterprise v15

Tasks