Overview

overview

10

Static

static

doc.exe

windows7_x64

10

doc.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    7bafce52c3b6799ed45e82512ae4c759a6e0c7a3a884c29bd68258e5f8051700

  • Size

    638KB

  • Sample

    220521-c6kr1aabgn

  • MD5

    2853699f423da3afa411d462298d9c4a

  • SHA1

    9f785bf1fe6815c0d7aeffa4c90342a6a77575c3

  • SHA256

    7bafce52c3b6799ed45e82512ae4c759a6e0c7a3a884c29bd68258e5f8051700

  • SHA512

    43d5e9c1d738f22d2b475377a3fe71447fe90ea8e69b84e6db60ca5fffc73ffd73f6de50fdd8f408af545f4f40a683f18ab8ac483f1eb1e22d47e105946ec6cc

Score
10/10
nanocoreevasionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

isiefi.ddns.net:9909

Mutex

1c87c2a2-27a9-4062-b41f-749df56c3f54

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-03-28T18:27:52.322706536Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    9909

  • default_group

    latest

  • 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

    1c87c2a2-27a9-4062-b41f-749df56c3f54

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    isiefi.ddns.net

  • 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

      doc.exe

    • Size

      577KB

    • MD5

      83492ae54563bfc4446c7f06b607190f

    • SHA1

      359537f5fc92090b1cf16701c3855013beead6e6

    • SHA256

      5af772f42ab8e1672905cbf0494eb367cd687486cef182c49b71a72d7368c012

    • SHA512

      286cde57794a9a277602ee6e81c4432578c3a1bddf20157b9da71908505ceb71df6fa5abd1aea05c7fc0715f30a2ef9ffe7a8b816ee74cd79ad3172d521b0888

    Score
    10/10
    nanocoreevasionkeyloggerpersistencespywarestealertrojan

    • NanoCore

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

      keyloggertrojanstealerspywarenanocore

    • Looks for VirtualBox Guest Additions in registry

      evasion

    • Looks for VMWare Tools registry key

      evasion

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Adds Run key to start application

      persistence

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks