Overview

overview

10

Static

static

e441a0b3.exe

windows7_x64

10

e441a0b3.exe

windows10_x64

10

Sharing

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General

  • Target

    e441a0b3.exe

  • Size

    124KB

  • Sample

    211023-kjxr2sdbfn

  • MD5

    6c3143f9141f1fcd12ee35dfd7f7c5c6

  • SHA1

    dd57207bc55b7137ab84c9c7d9ce2a800671f24a

  • SHA256

    e441a0b3219c4844b20782d395d3132d7d5459cf9625a8dffd13ffbbd8d621dc

  • SHA512

    90640764a8b2f36cdddc00790f8afbe6ccd940078ec1ad7a031fed5de0a3d2fce617e59f5de7c310effac6044f4e4c200fe7ab73cb1f508587ea71003add161f

Score
10/10
asyncratnanocoredefaultevasionkeyloggerpersistenceratspywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

sbdndbnb.duckdns.org:3040

Mutex

42c14bc9-0c03-49f5-a618-16e05d66d377

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    sbdndbnb.duckdns.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-07-09T21:43:24.855515336Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    3040

  • 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

    42c14bc9-0c03-49f5-a618-16e05d66d377

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    sbdndbnb.duckdns.org

  • primary_dns_server

    8.8.8.8

  • 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

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

hpdndbnb.duckdns.org:2020

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • anti_vm

    false

  • bsod

    false

  • delay

    3

  • install

    true

  • install_file

    Dfnder windows.exe

  • install_folder

    %AppData%

  • pastebin_config

    null

aes.plain

Targets

    • Target

      e441a0b3.exe

    • Size

      124KB

    • MD5

      6c3143f9141f1fcd12ee35dfd7f7c5c6

    • SHA1

      dd57207bc55b7137ab84c9c7d9ce2a800671f24a

    • SHA256

      e441a0b3219c4844b20782d395d3132d7d5459cf9625a8dffd13ffbbd8d621dc

    • SHA512

      90640764a8b2f36cdddc00790f8afbe6ccd940078ec1ad7a031fed5de0a3d2fce617e59f5de7c310effac6044f4e4c200fe7ab73cb1f508587ea71003add161f

    Score
    10/10
    asyncratnanocoredefaultevasionkeyloggerpersistenceratspywarestealertrojan

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

      ratasyncrat

    • Modifies Windows Defender Real-time Protection settings

      evasiontrojan

    • NanoCore

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

      keyloggertrojanstealerspywarenanocore

    • Turns off Windows Defender SpyNet reporting

      evasion

    • Windows security bypass

      evasiontrojan

    • Async RAT payload

      rat

    • Nirsoft

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

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

5
T1112

Disabling Security Tools

4
T1089

Credential Access

Discovery

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks