Analysis

  • max time kernel
    149s
  • 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
    12-09-2024 08:04

General

  • Target

    dc1a3460bcf7b523e6c86f5e9b30f748_JaffaCakes118.exe

  • Size

    918KB

  • MD5

    dc1a3460bcf7b523e6c86f5e9b30f748

  • SHA1

    0aa1b01e28b2f5ca08519542cbe31a9bb43ebc27

  • SHA256

    78cbb279ba688ed0771ff554c496b8addd85f61206aaa6ae62899328f836b876

  • SHA512

    ecee81757d87a17245ddcc6267154e3a8915c268821c87831619b5a3beacf475f2f3c3aff13623f68f687d2b353880119f2fc92568e49a090f4d9e40260166a5

  • SSDEEP

    6144:uWzFzx9BbYV5L1hYn2Jdd+Ph27DpC7JjC7X1/AEvBHFy/y/QLHpbBcN9vBKrRMY+:uWvX8/t5poGiQMwsVKAcp4qs2RxJ5J

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

klonnygermanip.ddns.net:3935

klonnygermanip1.ddns.net:3935

Mutex

380faa9d-26a4-4df1-b106-95f71ef6df28

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    klonnygermanip1.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2018-07-27T13:30:48.757645436Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    3935

  • default_group

    RAW CASH

  • 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

    380faa9d-26a4-4df1-b106-95f71ef6df28

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    klonnygermanip.ddns.net

  • 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.

  • Drops startup file 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dc1a3460bcf7b523e6c86f5e9b30f748_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\dc1a3460bcf7b523e6c86f5e9b30f748_JaffaCakes118.exe"
    1⤵
    • Drops startup file
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:972
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /query
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4904
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /sc MINUTE /tn svhost /MO 1 /tr "C:\Users\Admin\AppData\Roaming\svhost\svhost.exe\
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2428
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
      2⤵
        PID:3128
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
        2⤵
          PID:4860
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
          2⤵
          • Checks whether UAC is enabled
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2516
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks.exe" /create /f /tn "DNS Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp88E7.tmp"
            3⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:2012

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\tmp88E7.tmp

        Filesize

        1KB

        MD5

        c6f0625bf4c1cdfb699980c9243d3b22

        SHA1

        43de1fe580576935516327f17b5da0c656c72851

        SHA256

        8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576

        SHA512

        9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969

      • memory/972-1-0x0000000000C20000-0x0000000000CF4000-memory.dmp

        Filesize

        848KB

      • memory/972-2-0x00000000055E0000-0x0000000005624000-memory.dmp

        Filesize

        272KB

      • memory/972-3-0x0000000001770000-0x000000000177C000-memory.dmp

        Filesize

        48KB

      • memory/972-6-0x0000000005620000-0x0000000005658000-memory.dmp

        Filesize

        224KB

      • memory/972-7-0x0000000005770000-0x000000000580C000-memory.dmp

        Filesize

        624KB

      • memory/972-0-0x0000000074D0E000-0x0000000074D0F000-memory.dmp

        Filesize

        4KB

      • memory/2516-8-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2516-11-0x0000000074E60000-0x0000000075411000-memory.dmp

        Filesize

        5.7MB

      • memory/2516-12-0x0000000074E60000-0x0000000075411000-memory.dmp

        Filesize

        5.7MB

      • memory/2516-10-0x0000000074E62000-0x0000000074E63000-memory.dmp

        Filesize

        4KB

      • memory/2516-17-0x0000000074E62000-0x0000000074E63000-memory.dmp

        Filesize

        4KB

      • memory/2516-18-0x0000000074E60000-0x0000000075411000-memory.dmp

        Filesize

        5.7MB

      • memory/2516-19-0x0000000074E60000-0x0000000075411000-memory.dmp

        Filesize

        5.7MB