General

  • Target

    5888570a4481de3013ba35108c229255e430972dac28c4ef535b4bf24bcc8925

  • Size

    1.9MB

  • Sample

    221128-sdtr7sga4w

  • MD5

    b4d0ee296eef25fa161168ec278e5223

  • SHA1

    74e42f729202eef75a2aa74476f6e442bcdee314

  • SHA256

    5888570a4481de3013ba35108c229255e430972dac28c4ef535b4bf24bcc8925

  • SHA512

    77372b55d9b58aaa8bec7e33223485e468f6fe1f96383fe5c1a131e03b4a607fcc0eeed71ac27ad35707790a2da885115bc7f8cba9677ccad53681eb756b1312

  • SSDEEP

    49152:QVg5tQ7aim3ZL8i1yJxWwn2SDgv0S3Evq5:yg56c3ZD1yJx120v

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

svr.fspy.cf:59281

Mutex

c1bf9821-e6f8-48d7-9afc-2708b8b56a12

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    svr.fspy.cf

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2014-12-14T15:37:42.904174436Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    59281

  • default_group

    Auto CD

  • 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

    c1bf9821-e6f8-48d7-9afc-2708b8b56a12

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    svr.fspy.cf

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    true

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Targets

    • Target

      5888570a4481de3013ba35108c229255e430972dac28c4ef535b4bf24bcc8925

    • Size

      1.9MB

    • MD5

      b4d0ee296eef25fa161168ec278e5223

    • SHA1

      74e42f729202eef75a2aa74476f6e442bcdee314

    • SHA256

      5888570a4481de3013ba35108c229255e430972dac28c4ef535b4bf24bcc8925

    • SHA512

      77372b55d9b58aaa8bec7e33223485e468f6fe1f96383fe5c1a131e03b4a607fcc0eeed71ac27ad35707790a2da885115bc7f8cba9677ccad53681eb756b1312

    • SSDEEP

      49152:QVg5tQ7aim3ZL8i1yJxWwn2SDgv0S3Evq5:yg56c3ZD1yJx120v

    • NanoCore

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

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Checks computer location settings

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

    • Loads dropped DLL

    • Uses the VBS compiler for execution

    • Adds Run key to start application

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scripting

1
T1064

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Scripting

1
T1064

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Tasks