Overview

overview

10

Static

static

STMPO3683HK.exe

windows7_x64

10

STMPO3683HK.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    163s
  • max time network
    165s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 18:50

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General

  • Target

    STMPO3683HK.exe

  • Size

    715KB

  • MD5

    76a8f2eb76dce33384b6eae299b861cd

  • SHA1

    c9028f427d3bfd2efe4b08989ea73be739a6d290

  • SHA256

    9eb1cd61e77d7133bd5252c9c7574d4171ba60c856dbedd15754c5b0e3c827b4

  • SHA512

    d4bc7ebfe33ac92f003d5800ff9a391e0af2973dff565c1f0806ac6ed37c8b6c138b1294e079909dbfd5294d61099ade4749a7774fe246747a174f4bf300e1b1

Score
10/10
nanocoreevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

darlingtondc.hopto.org:1905

185.165.153.17:1905
Mutex

9ca847a1-73ff-4b6f-bbac-e86d31071270

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    185.165.153.17

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-04-19T00:49:06.806996136Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1905

  • 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

    9ca847a1-73ff-4b6f-bbac-e86d31071270

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    darlingtondc.hopto.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

Signatures

  • NanoCore

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

    keyloggertrojanstealerspywarenanocore
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\STMPO3683HK.exe
    "C:\Users\Admin\AppData\Local\Temp\STMPO3683HK.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:844
    • C:\Users\Admin\AppData\Local\Temp\STMPO3683HK.exe
      "C:\Users\Admin\AppData\Local\Temp\STMPO3683HK.exe"
      2⤵
      • Checks whether UAC is enabled
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:3484
    • C:\Users\Admin\AppData\Local\Temp\STMPO3683HK.exe
      "C:\Users\Admin\AppData\Local\Temp\STMPO3683HK.exe" 2 3484 240560968
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:2932

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/844-134-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

    Download
  • memory/2932-131-0x0000000000000000-mapping.dmp
    Download
  • memory/2932-135-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

    Download
  • memory/3484-130-0x0000000000000000-mapping.dmp
    Download
  • memory/3484-132-0x0000000000970000-0x00000000009A8000-memory.dmp
    Filesize

    224KB

    Download
  • memory/3484-133-0x0000000000970000-0x00000000009A8000-memory.dmp
    Filesize

    224KB

    Download
  • memory/3484-136-0x0000000075420000-0x00000000759D1000-memory.dmp
    Filesize

    5.7MB

    Download