General

  • Target

    001841be7c47d683d72ff03ecc3b1781_JaffaCakes118

  • Size

    853KB

  • Sample

    240425-z5e7fsfb33

  • MD5

    001841be7c47d683d72ff03ecc3b1781

  • SHA1

    db8c8eb540075fd068136b351d466190308fe2dd

  • SHA256

    33359ddd082b23c721c6ceb77db5e5534b2bf6d33167abffca2c705439fc666c

  • SHA512

    109a006bee8af521a2936d17ef48699ca7916fc07b438d981855e1ce8802f2a5575af1ef2e6dbd4ec95f69435dea89aaa34f3669c67462b6bf77310afb6c615a

  • SSDEEP

    24576:PC+arTXZjaNJWEEi/iznKRpdUfrK/gMc81S7IEFUcfP8:PypV0/iznKRPUfm/gQin

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

meeti.ddns.net:1144

173.254.223.125:1144

Mutex

4aacaf0b-2d1e-4f63-86bc-f3a10404b945

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    173.254.223.125

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2019-06-15T00:11:27.949979336Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1144

  • default_group

    AAAAAAAA

  • 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

    4aacaf0b-2d1e-4f63-86bc-f3a10404b945

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    meeti.ddns.net

  • 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

      001841be7c47d683d72ff03ecc3b1781_JaffaCakes118

    • Size

      853KB

    • MD5

      001841be7c47d683d72ff03ecc3b1781

    • SHA1

      db8c8eb540075fd068136b351d466190308fe2dd

    • SHA256

      33359ddd082b23c721c6ceb77db5e5534b2bf6d33167abffca2c705439fc666c

    • SHA512

      109a006bee8af521a2936d17ef48699ca7916fc07b438d981855e1ce8802f2a5575af1ef2e6dbd4ec95f69435dea89aaa34f3669c67462b6bf77310afb6c615a

    • SSDEEP

      24576:PC+arTXZjaNJWEEi/iznKRpdUfrK/gMc81S7IEFUcfP8:PypV0/iznKRPUfm/gQin

    • 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.

    • Drops startup file

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • 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

3
T1082

Tasks