Overview

overview

10

Static

static

a7bc7021fb...3c.exe

windows7-x64

10

a7bc7021fb...3c.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    a7bc7021fb57ad2b0ee8a75ed7a7a11d5fff57c72ee0be680d1a58fc6262183c

  • Size

    513KB

  • Sample

    221126-kehsbshg9s

  • MD5

    d4d8d5561f956ce6152c0bdef9ab0330

  • SHA1

    b3b8f4be8a671c3b24a9dc18055b611e2ba4357d

  • SHA256

    a7bc7021fb57ad2b0ee8a75ed7a7a11d5fff57c72ee0be680d1a58fc6262183c

  • SHA512

    fcb26b648477c71ebb7dd277430f009992fe5d393406cc117c7fa2c08666416f8caad843613866d6a0caf7fd7c524cd34c49e87b6ba28d2d92d6ee1074278521

  • SSDEEP

    12288:737VWUQUXrv6c2Q1JDB1sCbj21Hln4Ye0rXDc:XKUXj6cbJl1DXeln4Z0rXDc

Score
10/10
nanocoreevasionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.1.1

C2

87.231.21.54:4242

192.168.0.18:4242
Mutex

322262ce-9696-4b85-b0b7-24f45dfb3e97

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    192.168.0.18

  • backup_dns_server

  • buffer_size

    65535

  • build_time

    2014-10-27T20:39:29.987250736Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    4242

  • default_group

    TheGr8Spread

  • 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

    322262ce-9696-4b85-b0b7-24f45dfb3e97

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    87.231.21.54

  • primary_dns_server

  • 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

    1.2.1.1

  • wan_timeout

    8000

Targets

    • Target

      a7bc7021fb57ad2b0ee8a75ed7a7a11d5fff57c72ee0be680d1a58fc6262183c

    • Size

      513KB

    • MD5

      d4d8d5561f956ce6152c0bdef9ab0330

    • SHA1

      b3b8f4be8a671c3b24a9dc18055b611e2ba4357d

    • SHA256

      a7bc7021fb57ad2b0ee8a75ed7a7a11d5fff57c72ee0be680d1a58fc6262183c

    • SHA512

      fcb26b648477c71ebb7dd277430f009992fe5d393406cc117c7fa2c08666416f8caad843613866d6a0caf7fd7c524cd34c49e87b6ba28d2d92d6ee1074278521

    • SSDEEP

      12288:737VWUQUXrv6c2Q1JDB1sCbj21Hln4Ye0rXDc:XKUXj6cbJl1DXeln4Z0rXDc

    Score
    10/10
    nanocoreevasionkeyloggerspywarestealertrojanpersistence

    • Modifies WinLogon for persistence

      persistence

    • NanoCore

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

      keyloggertrojanstealerspywarenanocore

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Checks whether UAC is enabled

      evasiontrojan

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Privilege Escalation

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

Tasks