Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    21-09-2024 07:34

General

  • Target

    ef54d89e67fd0ad61aeb9bc20f7a40db_JaffaCakes118.exe

  • Size

    528KB

  • MD5

    ef54d89e67fd0ad61aeb9bc20f7a40db

  • SHA1

    98273fb846c417173a5581ecad7ef6eb48f98240

  • SHA256

    7fe5f06d04390dd22e1065491c43c33dbebd03400826897c814db8d10469a8eb

  • SHA512

    08dec8c71e0f0c8a0f647c86d42a18c419d32561dda9c8b8be26732981ac16bb9c15f49ae5473eeb5f944c26cf37dd3df1372c1730c9d70574a7aeac0536a240

  • SSDEEP

    6144:cJpoOk80HopeWE3pie+yd9SqUd2RMs6BhSvyN9oegPM:cJpoOk/HoIWze+29SqU0RMshvQKegPM

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

datalogsbackups.hopto.org:2233

127.0.0.1:2233

Mutex

d83c95eb-b166-471e-8526-3db8acfd7ed7

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

  • buffer_size

    65535

  • build_time

    2018-07-06T00:29:59.077169836Z

  • 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

    2233

  • default_group

    CASH OUT

  • 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

    d83c95eb-b166-471e-8526-3db8acfd7ed7

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    datalogsbackups.hopto.org

  • primary_dns_server

  • 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 4 IoCs
  • Executes dropped EXE 3 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 14 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 15 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ef54d89e67fd0ad61aeb9bc20f7a40db_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ef54d89e67fd0ad61aeb9bc20f7a40db_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:2772
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /query
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2864
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /sc MINUTE /tn svhost.exe /MO 1 /tr "C:\Users\Admin\AppData\Roaming\svhost\svhost.exe\
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2692
    • 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:2844
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DOS Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3E96.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2596
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {3D3240B1-BE5F-428B-BC0C-A4FE0ED9A12C} S-1-5-21-457978338-2990298471-2379561640-1000:WOUOSVRD\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1692
    • C:\Users\Admin\AppData\Roaming\svhost\svhost.exe
      C:\Users\Admin\AppData\Roaming\svhost\svhost.exe "C:\Users\Admin\AppData\Roaming\svhost\svhost.exe\"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2728
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /query
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1112
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1440
    • C:\Users\Admin\AppData\Roaming\svhost\svhost.exe
      C:\Users\Admin\AppData\Roaming\svhost\svhost.exe "C:\Users\Admin\AppData\Roaming\svhost\svhost.exe\"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1984
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /query
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2276
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
        3⤵
          PID:1796
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
          3⤵
          • System Location Discovery: System Language Discovery
          PID:1660
      • C:\Users\Admin\AppData\Roaming\svhost\svhost.exe
        C:\Users\Admin\AppData\Roaming\svhost\svhost.exe "C:\Users\Admin\AppData\Roaming\svhost\svhost.exe\"
        2⤵
        • Drops startup file
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:596
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /query
          3⤵
          • System Location Discovery: System Language Discovery
          PID:2976
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
          3⤵
            PID:2408
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
            3⤵
            • System Location Discovery: System Language Discovery
            PID:1084

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\tmp3E96.tmp

        Filesize

        1KB

        MD5

        c6f0625bf4c1cdfb699980c9243d3b22

        SHA1

        43de1fe580576935516327f17b5da0c656c72851

        SHA256

        8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576

        SHA512

        9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969

      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svhost.exe.url

        Filesize

        82B

        MD5

        72fee478b641f44343345b6d95f6e7a0

        SHA1

        61e48a4f7779d22d590a3c971306fff333752255

        SHA256

        39a3b795ec3022e2f4120d7cad94fc8df86bd8bce9479d64831b32674fca3fa1

        SHA512

        dba7ce5e1ec0da829c1ea6d87d05132462ed984918b91f36412a23ea34e3e3f1d1534fb995338d98037183e388e7f49bce25b33646c600662e026367b79e7520

      • C:\Users\Admin\AppData\Roaming\svhost\svhost.exe

        Filesize

        528KB

        MD5

        ef54d89e67fd0ad61aeb9bc20f7a40db

        SHA1

        98273fb846c417173a5581ecad7ef6eb48f98240

        SHA256

        7fe5f06d04390dd22e1065491c43c33dbebd03400826897c814db8d10469a8eb

        SHA512

        08dec8c71e0f0c8a0f647c86d42a18c419d32561dda9c8b8be26732981ac16bb9c15f49ae5473eeb5f944c26cf37dd3df1372c1730c9d70574a7aeac0536a240

      • memory/596-60-0x00000000003B0000-0x0000000000422000-memory.dmp

        Filesize

        456KB

      • memory/1984-44-0x00000000011B0000-0x0000000001222000-memory.dmp

        Filesize

        456KB

      • memory/2728-27-0x00000000010D0000-0x0000000001142000-memory.dmp

        Filesize

        456KB

      • memory/2728-28-0x0000000000290000-0x00000000002D4000-memory.dmp

        Filesize

        272KB

      • memory/2772-1-0x0000000000F90000-0x0000000001002000-memory.dmp

        Filesize

        456KB

      • memory/2772-2-0x0000000000460000-0x00000000004A4000-memory.dmp

        Filesize

        272KB

      • memory/2772-3-0x0000000000200000-0x000000000020C000-memory.dmp

        Filesize

        48KB

      • memory/2772-6-0x00000000005B0000-0x00000000005E8000-memory.dmp

        Filesize

        224KB

      • memory/2772-0-0x00000000742FE000-0x00000000742FF000-memory.dmp

        Filesize

        4KB

      • memory/2844-9-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2844-19-0x0000000074432000-0x0000000074434000-memory.dmp

        Filesize

        8KB

      • memory/2844-7-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2844-24-0x0000000074432000-0x0000000074434000-memory.dmp

        Filesize

        8KB

      • memory/2844-8-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2844-14-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2844-16-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2844-18-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2844-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2844-11-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB