General

  • Target

    ffb31463ba10f652b0dd8bc10e734b46_JaffaCakes118

  • Size

    688KB

  • Sample

    240421-txy2psfd6w

  • MD5

    ffb31463ba10f652b0dd8bc10e734b46

  • SHA1

    bfc2c18c7ea8f41823e5e1d89d2971fafa4966dd

  • SHA256

    8ca049e0699925d3ea76cb769814c220c410f29eae2f862ddbb03361e5a92d73

  • SHA512

    7cbc5aa59554d36eaf0daab10e1c7353b068cb65fb2afe225ef4812e43c90b1d0681c17c0924816a27850277c8b3b39fd388c72232b57615220dbbac9976a2e6

  • SSDEEP

    12288:Xx3TRu7iS/d3486AVmnmnk8RE9P6aowdJ5bUB0XKXHK:XZRxS/d3Y0RRE1Jq6XKa

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

91.193.75.228:1985

127.0.0.1:1985

Mutex

76ab9a6f-655c-4b06-a052-5a2cb9e07a2f

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-05-07T21:13:54.381433036Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1985

  • default_group

    KingT

  • 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

    76ab9a6f-655c-4b06-a052-5a2cb9e07a2f

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    91.193.75.228

  • primary_dns_server

    8.8.8.8

  • 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

      ffb31463ba10f652b0dd8bc10e734b46_JaffaCakes118

    • Size

      688KB

    • MD5

      ffb31463ba10f652b0dd8bc10e734b46

    • SHA1

      bfc2c18c7ea8f41823e5e1d89d2971fafa4966dd

    • SHA256

      8ca049e0699925d3ea76cb769814c220c410f29eae2f862ddbb03361e5a92d73

    • SHA512

      7cbc5aa59554d36eaf0daab10e1c7353b068cb65fb2afe225ef4812e43c90b1d0681c17c0924816a27850277c8b3b39fd388c72232b57615220dbbac9976a2e6

    • SSDEEP

      12288:Xx3TRu7iS/d3486AVmnmnk8RE9P6aowdJ5bUB0XKXHK:XZRxS/d3Y0RRE1Jq6XKa

    • NanoCore

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

    • CustAttr .NET packer

      Detects CustAttr .NET packer in memory.

    • Checks computer location settings

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

    • 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