Overview

overview

6

Static

static

5

jaffacakes...c7.exe

windows10-2004-x64

6

jaffacakes...c7.exe

windows11-ltsc_2024-x64

6

Analysis

  • max time kernel
    150s
  • max time network
    128s
  • 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, 08:04

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General

  • Target
    jaffacakes118__7fa8728acd60ce2a00d8611d819f64c7.exe
  • Size 541KB
  • Sample260919-jyrc5sysas
  • SHA256 931517f7298906d738e7fe13d4df023800b48d7f23f27a68dceb7ecdb848b088
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
6/10
adwarebootkitdiscoveryexecutionpersistencespywareupx

Malware Config

Signatures

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • UPX packed file 4 IoCs

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

    upx
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

    execution
  • 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.

    discovery
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 28 IoCs
  • Runs regedit.exe 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 26 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\jaffacakes118__7fa8728acd60ce2a00d8611d819f64c7.exe
    "C:\Users\Admin\AppData\Local\Temp\jaffacakes118__7fa8728acd60ce2a00d8611d819f64c7.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3040
    • C:\Windows\SysWOW64\regedit.exe
      regedit /s C:\Users\Admin\AppData\Local\Temp\$rar10656.tmp
      2⤵
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Runs regedit.exe
      PID:712
    • C:\Windows\SysWOW64\regedit.exe
      regedit /s C:\Users\Admin\AppData\Local\Temp\$10943.tmp
      2⤵
      • System Location Discovery: System Language Discovery
      • Runs regedit.exe
      PID:2540
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$dmsf.bat
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2796
      • C:\Windows\SysWOW64\reg.exe
        reg delete HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\RunMRU /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3500

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        $$dmsf.bat
        • Path C:\Users\Admin\AppData\Local\Temp\$$dmsf.bat
        • Size 631B
        • SHA256 0df3f84c089263662cd3b99e8e1509a9ab6a0ddfaa352599c241bb05865f16f3
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        $rar10656.tmp
        • Path C:\Users\Admin\AppData\Local\Temp\$rar10656.tmp
        • Size 1KB
        • SHA256 e82c214f33cad1b25146758e22fd887b15f63b1a7a8d716b358c50dc5c3d4e96
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        $rar10943.tmp
        • Path C:\Users\Admin\AppData\Local\Temp\$rar10943.tmp
        • Size 142B
        • SHA256 2c428a167d8dabe9b4e4e821f5d56333962208ef44bc0becbf9c968f1e583e21
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        RtkSYUdp.exe
        • Path C:\Windows\RtkSYUdp.exe
        • Size 30KB
        • SHA256 2f6cd2ed9806a09fecce1f96cd5b3f77fc0339ddbbb4c31aab25e85fd3f268eb
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/3040-0-0x0000000000400000-0x00000000004E7000-memory.dmp
        Download

        memory/3040-1-0x00000000004E6000-0x00000000004E7000-memory.dmp
        Download

        memory/3040-2-0x0000000000400000-0x00000000004E7000-memory.dmp
        Download

        memory/3040-22-0x0000000000400000-0x00000000004E7000-memory.dmp
        Download