Analysis

  • max time kernel
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    19/09/2026, 10:16

General

  • Target
    jaffacakes118__8c623061870f045c79b179cc9886bcba.exe
  • Size 7KB
  • Sample260919-marksayhjb
  • SHA256 0f4e540b0d7b3a7588664637dbef309f1a7001429e88b5c6aa3898eaf4f95c33
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Indicator Removal: File Deletion 1 TTPs

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

  • UPX packed file 18 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Windows directory 1 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 use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\jaffacakes118__8c623061870f045c79b179cc9886bcba.exe
    "C:\Users\Admin\AppData\Local\Temp\jaffacakes118__8c623061870f045c79b179cc9886bcba.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5320
    • C:\Windows\System\taskman.exe
      "C:\Windows\System\taskman.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2064
    • 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:5136
  • C:\Windows\System\taskman.exe
    C:\Windows\System\taskman.exe
    1⤵
    • Executes dropped EXE
    PID:5116

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        taskman.exe

        • Path C:\Windows\System\taskman.exe
        • Size 7KB
        • SHA256 0f4e540b0d7b3a7588664637dbef309f1a7001429e88b5c6aa3898eaf4f95c33
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2064-11-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/2064-13-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/2064-20-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/2064-6-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/2064-8-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/2064-9-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/2064-10-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/2064-19-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/2064-18-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/2064-14-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/2064-12-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/2064-15-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/2064-16-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/2064-17-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/5116-5-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/5320-4-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/5320-0-0x0000000000400000-0x0000000000408000-memory.dmp