Analysis

  • max time kernel
    143s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    07-01-2025 19:51

General

  • Target

    JaffaCakes118_761d8f1d7bd7d7bf9c92fc6d80f1011e.exe

  • Size

    503KB

  • MD5

    761d8f1d7bd7d7bf9c92fc6d80f1011e

  • SHA1

    0b4926b71094ac904a53c882509c2700fcda4a06

  • SHA256

    71400d5f83ac187ce3468f7d60402a7a8b0707aab7416d6c2d58df9c6f0860c2

  • SHA512

    8bef185a7011fa4dd3e29f81eb242d93634c8f7f957beea919218cd993c0def1a61bbc6da0361668b71e0e92ab8953dde41ff2cc4ae1713ef957bef632998060

  • SSDEEP

    12288:eVGgMOAslYbn5vK2w7CeEBOB8tfjHmdq:btslYbN2Ebt7Hmdq

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

212.192.241.19:9530

Mutex

0e53723b-45a2-4610-9e0f-bcbf71098cb0

Attributes
  • activate_away_mode

    false

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-07-26T03:05:48.681858136Z

  • 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

    9530

  • default_group

    Saint

  • 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

    0e53723b-45a2-4610-9e0f-bcbf71098cb0

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    212.192.241.19

  • primary_dns_server

    8.8.8.8

  • request_elevation

    false

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    false

  • 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.

  • Nanocore family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 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 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_761d8f1d7bd7d7bf9c92fc6d80f1011e.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_761d8f1d7bd7d7bf9c92fc6d80f1011e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2936
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_761d8f1d7bd7d7bf9c92fc6d80f1011e.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2768
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qvSCyEhVKRwxif" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC542.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2404
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_761d8f1d7bd7d7bf9c92fc6d80f1011e.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_761d8f1d7bd7d7bf9c92fc6d80f1011e.exe"
      2⤵
        PID:1744
      • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_761d8f1d7bd7d7bf9c92fc6d80f1011e.exe
        "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_761d8f1d7bd7d7bf9c92fc6d80f1011e.exe"
        2⤵
          PID:2732
        • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_761d8f1d7bd7d7bf9c92fc6d80f1011e.exe
          "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_761d8f1d7bd7d7bf9c92fc6d80f1011e.exe"
          2⤵
            PID:2172
          • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_761d8f1d7bd7d7bf9c92fc6d80f1011e.exe
            "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_761d8f1d7bd7d7bf9c92fc6d80f1011e.exe"
            2⤵
            • Adds Run key to start application
            • Checks whether UAC is enabled
            • Drops file in Program Files directory
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:868
            • C:\Windows\SysWOW64\schtasks.exe
              "schtasks.exe" /create /f /tn "WPA Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC9E4.tmp"
              3⤵
              • System Location Discovery: System Language Discovery
              • Scheduled Task/Job: Scheduled Task
              PID:2092
            • C:\Windows\SysWOW64\schtasks.exe
              "schtasks.exe" /create /f /tn "WPA Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpCB1D.tmp"
              3⤵
              • System Location Discovery: System Language Discovery
              • Scheduled Task/Job: Scheduled Task
              PID:3064

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmpC9E4.tmp

          Filesize

          1KB

          MD5

          a3e9c093faa57fc78d3a955d169454d8

          SHA1

          0de6da978cdc4f3fd96fe951af565a09b318ac56

          SHA256

          a03b5eda6ab7cc64522f16008991e4dbeb4ddfa9efd61c3d9a5b033e09936b71

          SHA512

          e7908bb1a748dcbe07cac1514f67772394c54a454fad2f9e85bff6353d55e20be0da4634286c9a6bdf0fed81d42a16c543bb3e9ade84bc07f0c3ca5f37a3d392

        • C:\Users\Admin\AppData\Local\Temp\tmpCB1D.tmp

          Filesize

          1KB

          MD5

          21de6c3a6440d917bdbb4b491191d9b2

          SHA1

          c63c300affe7147910dc4544d2d5f3029bf321a6

          SHA256

          23af17733a3882cdd82a5bbc321d896b2430dc1bb4b4ac034d129cde5027afc4

          SHA512

          dcd1c464ed36593b990e072940ab415804ef8076743015fff4939211e30e436beb7ce6af3072769abe0214f737cedb210d2b45e6e90da20dac54c3945b11575f

        • memory/868-13-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/868-32-0x00000000004A0000-0x00000000004AA000-memory.dmp

          Filesize

          40KB

        • memory/868-33-0x0000000000530000-0x000000000054E000-memory.dmp

          Filesize

          120KB

        • memory/868-34-0x0000000000550000-0x000000000055A000-memory.dmp

          Filesize

          40KB

        • memory/868-14-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/868-19-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/868-21-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/868-12-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/868-17-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/868-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/868-15-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/2936-5-0x00000000744D0000-0x0000000074BBE000-memory.dmp

          Filesize

          6.9MB

        • memory/2936-6-0x0000000001040000-0x000000000109C000-memory.dmp

          Filesize

          368KB

        • memory/2936-24-0x00000000744D0000-0x0000000074BBE000-memory.dmp

          Filesize

          6.9MB

        • memory/2936-0-0x00000000744DE000-0x00000000744DF000-memory.dmp

          Filesize

          4KB

        • memory/2936-4-0x00000000744DE000-0x00000000744DF000-memory.dmp

          Filesize

          4KB

        • memory/2936-3-0x00000000004B0000-0x00000000004BE000-memory.dmp

          Filesize

          56KB

        • memory/2936-2-0x00000000744D0000-0x0000000074BBE000-memory.dmp

          Filesize

          6.9MB

        • memory/2936-1-0x00000000010A0000-0x0000000001124000-memory.dmp

          Filesize

          528KB