Overview

overview

10

Static

static

PO-SK338892220.exe

windows7_x64

10

PO-SK338892220.exe

windows10_x64

10

Analysis

  • max time kernel
    139s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    09/11/2020, 19:41

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General

  • Target
    PO-SK338892220.exe
  • Size 377KB
  • Sample201109-ev2vwnyc9a
  • SHA256 ce8036a3dce940ac788926ec9b76a2cef7974335c9bdfc5dc0e36252eeafbb6f
  • MD5 SHA1 SHA512
Score
10/10
nanocorekeyloggerspywarestealertrojan

Malware Config

Extracted

Family

  • nanocore

Version

  • 1.2.2.0

C2

  • 185.140.53.25:1970

  • dikaa.ddns.net:1970

Mutex

  • 8afb9edf-7a2d-460a-ae21-7bb912f5dce0

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    dikaa.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-01-28T23:22:37.079007536Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    1970

  • default_group

    BEST

  • 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

    8afb9edf-7a2d-460a-ae21-7bb912f5dce0

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    185.140.53.25

  • 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO-SK338892220.exe
    "C:\Users\Admin\AppData\Local\Temp\PO-SK338892220.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4684
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wFAOZZjixK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEE1F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3424
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:3088

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/3088-2-0x0000000000400000-0x0000000000438000-memory.dmp
        Download