General

  • Target

    3ffe8c93590efba7b73e676d5773337d_JaffaCakes118

  • Size

    1.1MB

  • Sample

    240330-vb4whaaf34

  • MD5

    3ffe8c93590efba7b73e676d5773337d

  • SHA1

    17d526ad21587f7006a39a394a0e2d00e10cc4a3

  • SHA256

    4b44fd482760bc7b2164df59d23fb07d23f5c52e4e0fc556d0d5c664bab7259f

  • SHA512

    8bbeb17a758f6087713ae24d67f89272704398b5f726b701a73180d62b820865a6a53d9287728fe0ab78387716405d93e6c187f72ee3e02da4997a512855420e

  • SSDEEP

    24576:rAOcZEhWg73O2WMIKrPO2VANa6TPY5I7nT1RMwazC:tBgMHlf6c5IzTXM7W

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

23.105.131.186:8777

Mutex

f96139ab-4501-4b7f-8179-e6ccdbddf26e

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    23.105.131.186

  • backup_dns_server

  • buffer_size

    65535

  • build_time

    2021-07-24T21:27:22.697649536Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    8777

  • default_group

    new bind

  • 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

    f96139ab-4501-4b7f-8179-e6ccdbddf26e

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    23.105.131.186

  • primary_dns_server

  • request_elevation

    true

  • 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

      3ffe8c93590efba7b73e676d5773337d_JaffaCakes118

    • Size

      1.1MB

    • MD5

      3ffe8c93590efba7b73e676d5773337d

    • SHA1

      17d526ad21587f7006a39a394a0e2d00e10cc4a3

    • SHA256

      4b44fd482760bc7b2164df59d23fb07d23f5c52e4e0fc556d0d5c664bab7259f

    • SHA512

      8bbeb17a758f6087713ae24d67f89272704398b5f726b701a73180d62b820865a6a53d9287728fe0ab78387716405d93e6c187f72ee3e02da4997a512855420e

    • SSDEEP

      24576:rAOcZEhWg73O2WMIKrPO2VANa6TPY5I7nT1RMwazC:tBgMHlf6c5IzTXM7W

    • 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.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Tasks