General

  • Target

    Output.js

  • Size

    1.5MB

  • Sample

    211019-rgqdhsfhh3

  • MD5

    10121200161a9b69383c486c79db5c3c

  • SHA1

    bd3a112217bd7dbfacd85d0375e26b048c617cb2

  • SHA256

    a6aaa67c49799355898d8682152182b03f37a7d603bac9a70ddd7e0f9634aced

  • SHA512

    d6bc5157638b35997c5a937c70c700f671e4cdc11eb19e4665defc1c332d246b16f017bb76d8fc87dcc3d7df1d8471ce5d9730e218ffd7d9c0cacc8b3ac74eda

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

      Output.js

    • Size

      1.5MB

    • MD5

      10121200161a9b69383c486c79db5c3c

    • SHA1

      bd3a112217bd7dbfacd85d0375e26b048c617cb2

    • SHA256

      a6aaa67c49799355898d8682152182b03f37a7d603bac9a70ddd7e0f9634aced

    • SHA512

      d6bc5157638b35997c5a937c70c700f671e4cdc11eb19e4665defc1c332d246b16f017bb76d8fc87dcc3d7df1d8471ce5d9730e218ffd7d9c0cacc8b3ac74eda

    • NanoCore

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

    • Disables Task Manager via registry modification

    • Executes dropped EXE

    • Drops startup file

    • Loads dropped DLL

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Tasks