Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/09/2024, 02:58

General

  • Target
    fdaad4eb64eccc6953ff1ce550eae36f_JaffaCakes118.exe
  • Size 536KB
  • Sample240929-df8ltaxdkr
  • SHA256 01ab9c62c600b245f23843974f3c51494e52dedc6147385e968dd9da85a8fee0
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • nanocore

Version
  • 1.2.2.0

C2
  • ghostcum.ddns.net:4040

Mutex
  • 5bbc7391-512a-4cae-9589-1734252a7b7d

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    ghostcum.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-07-02T10:14:45.673398236Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    4040

  • default_group

    EUROS

  • 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

    5bbc7391-512a-4cae-9589-1734252a7b7d

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    ghostcum.ddns.net

  • primary_dns_server

    8.8.8.8

  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fdaad4eb64eccc6953ff1ce550eae36f_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fdaad4eb64eccc6953ff1ce550eae36f_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1724
    • 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
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:2712

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        memory/1724-6-0x0000000000400000-0x0000000000486000-memory.dmp

        memory/1724-3-0x0000000002230000-0x0000000002231000-memory.dmp

        memory/1724-4-0x0000000002240000-0x0000000002249000-memory.dmp

        memory/1724-2-0x0000000077AE2000-0x0000000077AE3000-memory.dmp

        memory/1724-7-0x0000000002240000-0x0000000002249000-memory.dmp

        memory/2712-9-0x0000000077AE2000-0x0000000077AE3000-memory.dmp

        memory/2712-5-0x0000000000400000-0x000000000043D000-memory.dmp

        memory/2712-10-0x0000000001380000-0x0000000001381000-memory.dmp

        memory/2712-11-0x0000000074C82000-0x0000000074C83000-memory.dmp

        memory/2712-12-0x0000000074C80000-0x0000000075231000-memory.dmp

        memory/2712-13-0x0000000074C80000-0x0000000075231000-memory.dmp

        memory/2712-16-0x0000000074C82000-0x0000000074C83000-memory.dmp

        memory/2712-17-0x0000000074C80000-0x0000000075231000-memory.dmp

        memory/2712-18-0x0000000074C80000-0x0000000075231000-memory.dmp