General

  • Target

    25eb7471594388dfa1e1bca16b19f94a_JaffaCakes118

  • Size

    659KB

  • Sample

    240508-vzh9pshd98

  • MD5

    25eb7471594388dfa1e1bca16b19f94a

  • SHA1

    3e4b9f41c6cb3a053f6b6c383d5eb238dfd88a8b

  • SHA256

    a3f1de0f98f5a75b5fc523931eee8455cf096467bb54bc0e4da488ea6dc737cf

  • SHA512

    2af86417f4a42e3ec0ee740e717421d362950aea4192bbecbc2f976de631c639293660e71207f42913b46e3aa09f9e30bf254b8dcabf8e66747785a10a0fe606

  • SSDEEP

    12288:JTRdFP0lkgSyTAd1UKtU5FslxO+tDjOZHp9tVk3xZKLPw3TCyc/r:Xj828MUK6w8MjUHVG34ITc/r

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

prime1.zapto.org:8885

Mutex

fffba83e-6ee4-4015-9987-2c220e55ca1c

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    prime1.zapto.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-02-16T12:30:42.941919436Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    8885

  • default_group

    billion$

  • 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

    fffba83e-6ee4-4015-9987-2c220e55ca1c

  • mutex_timeout

    5015

  • prevent_system_sleep

    true

  • primary_connection_host

    prime1.zapto.org

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    4997

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    true

  • timeout_interval

    5009

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Targets

    • Target

      DOC_94874893983478992873489302983743048583923.exe

    • Size

      850KB

    • MD5

      bad0a833162e39d641882ecce81e9a47

    • SHA1

      026f7e370b03b6c7557f98070b6d56e2b9ed97cd

    • SHA256

      336272983fab8fef81adad8156f80d1b91060b152e3eeeb9530899adc307217d

    • SHA512

      ea548949952e6b185d49651fcb9b97e3851b2eb11b661498d90f13ee7edf320e55775261994733684c31c2012ef6f968a5ba5a405e8c8d4066a2f9fbe1531d20

    • SSDEEP

      12288:i6tyHCDxWn1q9I6/k+BNokPno3c+Bn6/yZEZ5TdSCGDyaod+ik4g8y3SoDvKxnJk:iI8n8Pno3xBCyZEcPW2rEloDvO

    • NanoCore

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

    • Checks computer location settings

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

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks