Overview

overview

10

Static

static

5

270c523676...18.exe

windows7-x64

10

270c523676...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/05/2024, 22:37

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General

  • Target
    270c5236763d71bad0d6ece4925300aa_JaffaCakes118.exe
  • Size 1.4MB
  • Sample240508-2jy4jsbc4t
  • SHA256 e7bfe8f1bc255920477b8fb5f3075a5c7451cba2a5f2ab7f07c37a7464b28844
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
nanocoreevasionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

  • nanocore

Version

  • 1.2.2.0

C2

  • geo321.ddns.net:31781

Mutex

  • facc26e4-1d39-443a-8eca-6fea605b02c1

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    geo321.ddns.net

  • backup_dns_server

    geo321.ddns.net

  • buffer_size

    65535

  • build_time

    2019-05-15T15:54:31.474087836Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    31781

  • default_group

    AUGUST

  • 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

    facc26e4-1d39-443a-8eca-6fea605b02c1

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    geo321.ddns.net

  • primary_dns_server

    geo321.ddns.net

  • 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

Signatures

  • NanoCore

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

    keyloggertrojanstealerspywarenanocore
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\270c5236763d71bad0d6ece4925300aa_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\270c5236763d71bad0d6ece4925300aa_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1400
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\Windows\\\\\\\\\\\\\\\Microsoft.NET\\\\\\\\\\\\\\\Framework\\\\\\\\\\\\\\\v2.0.50727\\\\\\\\\\\\\\\RegAsm.exe"
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:2952

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        memory/1400-2-0x0000000000A30000-0x0000000000A31000-memory.dmp
        Download

        memory/2952-4-0x0000000000400000-0x0000000000438000-memory.dmp
        Download

        memory/2952-8-0x00000000742C2000-0x00000000742C3000-memory.dmp
        Download

        memory/2952-9-0x00000000742C0000-0x0000000074871000-memory.dmp
        Download

        memory/2952-10-0x00000000742C0000-0x0000000074871000-memory.dmp
        Download

        memory/2952-13-0x00000000742C2000-0x00000000742C3000-memory.dmp
        Download

        memory/2952-14-0x00000000742C0000-0x0000000074871000-memory.dmp
        Download