Overview

overview

10

Static

static

5

28fd5eba31...18.exe

windows7-x64

10

28fd5eba31...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    28fd5eba31a5186480c31dc8938b3a4fe2678325ee5141fff3bc6bfd3226cf18

  • Size

    1.1MB

  • Sample

    221128-pvestsdc74

  • MD5

    44657060c3b9aa17540d648ceebbbb5d

  • SHA1

    23701f8f47348d54cfacfe1c879122f4a267a198

  • SHA256

    28fd5eba31a5186480c31dc8938b3a4fe2678325ee5141fff3bc6bfd3226cf18

  • SHA512

    8d3eafc2ffb604899c1de8b597fb13885a34376e835daf698b0ac6c5be32263c8f4d8c1c29b75fa06a2cf196fe378b606d0222f21a853345b786bff480dbe967

  • SSDEEP

    24576:Ltb20pkECqT5TBWgNQ7a5zSphZJQriY6A:I3g5tQ7a5z0hZSf5

Score
10/10
nanocoreevasionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

savagescape.duckdns.org:58780

Mutex

92ad5adc-fa7c-4fdd-8aea-fec01e1564b7

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    savagescape.duckdns.org

  • backup_dns_server

  • buffer_size

    65535

  • build_time

    2015-01-23T19:50:08.252449036Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    58780

  • default_group

    Default

  • 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

    92ad5adc-fa7c-4fdd-8aea-fec01e1564b7

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    savagescape.duckdns.org

  • 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

    1.2.2.0

  • wan_timeout

    8000

Targets

    • Target

      28fd5eba31a5186480c31dc8938b3a4fe2678325ee5141fff3bc6bfd3226cf18

    • Size

      1.1MB

    • MD5

      44657060c3b9aa17540d648ceebbbb5d

    • SHA1

      23701f8f47348d54cfacfe1c879122f4a267a198

    • SHA256

      28fd5eba31a5186480c31dc8938b3a4fe2678325ee5141fff3bc6bfd3226cf18

    • SHA512

      8d3eafc2ffb604899c1de8b597fb13885a34376e835daf698b0ac6c5be32263c8f4d8c1c29b75fa06a2cf196fe378b606d0222f21a853345b786bff480dbe967

    • SSDEEP

      24576:Ltb20pkECqT5TBWgNQ7a5zSphZJQriY6A:I3g5tQ7a5z0hZSf5

    Score
    10/10
    evasionpersistencenanocorekeyloggerspywarestealertrojan

    • Modifies WinLogon for persistence

      persistence

    • NanoCore

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

      keyloggertrojanstealerspywarenanocore

    • Executes dropped EXE

    • Modifies Windows Firewall

      evasion

    • Checks computer location settings

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

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks