General

  • Target

    5a42e2442b79943419bf0e39ad7be827.exe

  • Size

    600KB

  • Sample

    240624-ztvsrsvhjp

  • MD5

    5a42e2442b79943419bf0e39ad7be827

  • SHA1

    1a4a5d7594fbdfb3189915502a63c801a2180389

  • SHA256

    b449b20b95c94cd1dc77a0edbd7eb8c183392ff0bbb53f2ca374d129f5ace20a

  • SHA512

    f18e569b0fc487b77fbe55cb7beadfac99723d5ab0111d03e62bee1cb01db3b8bd6f97a050f95768f77f5eaddf78bf08f7f12ba4ffa52bd7e8e55a60bb4167ed

  • SSDEEP

    12288:U9PcfpbzzGwWjZK2P5VQiYwhKrmXLZNa8pKp1wFqexdCZMxZ3Q:viDj7xVQi9hOmXowFTCZQtQ

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

newsddawork.3utilities.com:1620

maxlogs.webhop.me:1620

Mutex

1fa46b72-10f9-4da3-bc15-84dde165706d

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    maxlogs.webhop.me

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-02-17T03:41:10.727034736Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1620

  • default_group

    NewBin

  • 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

    1fa46b72-10f9-4da3-bc15-84dde165706d

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    newsddawork.3utilities.com

  • 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

      5a42e2442b79943419bf0e39ad7be827.exe

    • Size

      600KB

    • MD5

      5a42e2442b79943419bf0e39ad7be827

    • SHA1

      1a4a5d7594fbdfb3189915502a63c801a2180389

    • SHA256

      b449b20b95c94cd1dc77a0edbd7eb8c183392ff0bbb53f2ca374d129f5ace20a

    • SHA512

      f18e569b0fc487b77fbe55cb7beadfac99723d5ab0111d03e62bee1cb01db3b8bd6f97a050f95768f77f5eaddf78bf08f7f12ba4ffa52bd7e8e55a60bb4167ed

    • SSDEEP

      12288:U9PcfpbzzGwWjZK2P5VQiYwhKrmXLZNa8pKp1wFqexdCZMxZ3Q:viDj7xVQi9hOmXowFTCZQtQ

    • NanoCore

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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • 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

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Tasks