Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/01/2025, 20:50

General

  • Target

    JaffaCakes118_439042d2f601f4f8773a4afa76021030.exe

  • Size

    12KB

  • MD5

    439042d2f601f4f8773a4afa76021030

  • SHA1

    47fe097e8528c9fe85ea66798c1419bf50e0b65c

  • SHA256

    db5394366ff0b2b21dbdec994201550dca9b5ae5a26c2e0bbe68e782e1642efd

  • SHA512

    014157994b2b6bff4d6213989fea1e9066023748aa87c1d2d9a8d8b6cd811f69857040d055e0e16c892d75da94a2ee1f9ef67141c2444e2eb97499baa749336b

  • SSDEEP

    384:WhSEfjg7jtGCN1lh92d5DUofVg0ShQdn3gkmaeP:WIEfjgnsd5DUa5dnQkdU

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Drops file in System32 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 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:616
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_439042d2f601f4f8773a4afa76021030.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_439042d2f601f4f8773a4afa76021030.exe"
      1⤵
      • Checks computer location settings
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1596
      • C:\Windows\SysWOW64\mscornet.exe
        "C:\Windows\system32\mscornet.exe"
        2⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1224
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\JAFFAC~1.EXE > nul
        2⤵
        • System Location Discovery: System Language Discovery
        PID:2232

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\mscornet.exe

            Filesize

            9KB

            MD5

            153a1b76ddc3423afa6eb057ba73e69b

            SHA1

            c2b3990f8424b304b65873e450d3fb3d77c1a93f

            SHA256

            38dad675433c146bf4bff7c32e9e5b0ac5376d24aa4ede6073d97374084e03b1

            SHA512

            e86207fc4417980419f51a19e71a6624289c49273e8c67dc6a7c257c3d65272fd2657803d1471cb8a034a0eee59f652530e1af011a68a81c3140b60d9bcb171c