Overview

overview

10

Static

static

7363bb5a6f...0c.exe

windows7_x64

10

7363bb5a6f...0c.exe

windows10_x64

10

Analysis

  • max time kernel
    128s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    22/04/2021, 06:26

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General

  • Target
    7363bb5a6f893c4770ec16f64088170c.exe
  • Size 1.3MB
  • Sample210422-qdaasx4kvs
  • SHA256 60ea3bae77de9a72d976144ee268cde17dda353dcb981a104b0e2d741b3c803c
  • MD5 SHA1 SHA512
Score
10/10
nanocorekeyloggerspywarestealertrojan

Malware Config

Extracted

Family

  • nanocore

Version

  • 1.2.2.0

C2

  • 79.134.225.50:83

  • nassiru1166.webhop.me:83

Mutex

  • ff5d7452-ecaf-474e-b312-1d34eb4979b2

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    nassiru1166.webhop.me

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-01-28T23:55:30.477872536Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    83

  • default_group

    Me Alone

  • 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

    ff5d7452-ecaf-474e-b312-1d34eb4979b2

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    79.134.225.50

  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • 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 10 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7363bb5a6f893c4770ec16f64088170c.exe
    "C:\Users\Admin\AppData\Local\Temp\7363bb5a6f893c4770ec16f64088170c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3256
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xHVEUxyjRhQksn" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA29A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3884
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:1548

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1548-117-0x0000000000400000-0x000000000048C000-memory.dmp
        Download

        memory/1548-119-0x0000000003000000-0x0000000003001000-memory.dmp
        Download

        memory/1548-120-0x0000000003001000-0x0000000003002000-memory.dmp
        Download

        memory/3256-114-0x0000000000C90000-0x0000000000C91000-memory.dmp
        Download