Overview

overview

10

Static

static

3

holf.exe

windows7-x64

10

holf.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    934076e8eda59f04b18db8f262e885e0_JaffaCakes118

  • Size

    763KB

  • Sample

    240604-bnmcfaga9s

  • MD5

    934076e8eda59f04b18db8f262e885e0

  • SHA1

    deca51a91858374cce04f74bc503b33191143e2a

  • SHA256

    505d76702345bc95a07e30c9d7c57bb700e98124141d14b336e8d5c5e3e5c296

  • SHA512

    607447498f955e5217f5cf5d8b09635424ab5f212f4d1d72246048905df9744386befb39c5ed45e6a59de0de6a7758cf160df15286e48b86654c8024df0f41fe

  • SSDEEP

    12288:xKpGbhBR/pzr9zlGdp+hqsFMY0HbAqbIopgfPNZhGWNJDypWy33HcAnmPv6YYUud:9bht1zlGfDsmY0kqUfUcD4j3HnmPiNU4

Score
10/10
nanocoreevasionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

cboss33.hopto.org:4722

Mutex

f934e45a-6528-4b96-bd96-79fd13c4fe12

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

  • buffer_size

    65535

  • build_time

    2018-07-05T13:16:32.309254436Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    4722

  • default_group

    Dollar

  • 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

    f934e45a-6528-4b96-bd96-79fd13c4fe12

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    cboss33.hopto.org

  • 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

      holf.exe

    • Size

      884KB

    • MD5

      912d6c88f475bb275629201d52ae0ae6

    • SHA1

      3e64f86e98787997c98b98039bb491fa613e79cc

    • SHA256

      6b8e10fb6b6aa647c8c0ba181184d950e9f47ca6753213fc96b1b3ec18409f93

    • SHA512

      c8362c522e556166cc018800f721c8c4c3067d51209063f91424fbaf249b36441fc69e2556ee9b94cb7c0a6eee82d51b6105c3fa1a8148a98446e1a7e368d254

    • SSDEEP

      24576:rmoO8itEqfZng7cw8lSQzuQM9saXICbmyX97i:qvZScwKSQzrM9ZzfN7i

    Score
    10/10
    nanocoreevasionkeyloggerpersistencespywarestealertrojan

    • NanoCore

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

      keyloggertrojanstealerspywarenanocore

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

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

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks