Overview

overview

8

Static

static

3

jaffacakes...9c.exe

windows10-2004-x64

8

jaffacakes...9c.exe

windows11-ltsc_2024-x64

8

Analysis

  • max time kernel
    79s
  • max time network
    141s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    24/09/2026, 22:34

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General

  • Target
    jaffacakes118_a291ea70cd362f1420418253dce52553183454c07bb79083c4060fb5673f6c9c.exe
  • Size 991KB
  • Sample260924-2he92stdng
  • SHA256 a291ea70cd362f1420418253dce52553183454c07bb79083c4060fb5673f6c9c
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
adwarebootkitdiscoverypersistencespywareupx

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 3 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Drops desktop.ini file(s) 3 IoCs
  • Enumerates connected drives 3 TTPs 27 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs

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

    bootkitpersistence
  • UPX packed file 3 IoCs

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

    upx
  • 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.

    discovery
  • Checks SCSI registry key(s) 3 TTPs 64 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 5 IoCs
    adwarespyware
  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 11 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\jaffacakes118_a291ea70cd362f1420418253dce52553183454c07bb79083c4060fb5673f6c9c.exe
    "C:\Users\Admin\AppData\Local\Temp\jaffacakes118_a291ea70cd362f1420418253dce52553183454c07bb79083c4060fb5673f6c9c.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:1652
    • C:\ProgramData\defender.exe
      C:\ProgramData\defender.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Enumerates connected drives
      • Writes to the Master Boot Record (MBR)
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:1680
  • C:\ProgramData\defender.exe
    C:\ProgramData\defender.exe
    1⤵
    • Executes dropped EXE
    • Writes to the Master Boot Record (MBR)
    • System Location Discovery: System Language Discovery
    PID:668
  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:108
    • C:\Windows\System32\ShellHost.exe
      "C:\Windows\System32\ShellHost.exe"
      1⤵
      • Suspicious use of SetWindowsHookEx
      PID:4168
    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
      1⤵
      • Modifies data under HKEY_USERS
      • Suspicious use of SetWindowsHookEx
      PID:3020
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1820
      • C:\Windows\explorer.exe
        explorer.exe /LOADSAVEDWINDOWS
        2⤵
        • Boot or Logon Autostart Execution: Active Setup
        • Drops desktop.ini file(s)
        • Enumerates connected drives
        • Checks SCSI registry key(s)
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        PID:5828
    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
      1⤵
      • Checks processor information in registry
      • Enumerates system info in registry
      • Modifies data under HKEY_USERS
      • Suspicious use of SetWindowsHookEx
      PID:4220
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:4972
      • C:\Windows\explorer.exe
        explorer.exe /LOADSAVEDWINDOWS
        2⤵
          PID:5772
        • C:\Windows\System32\ShellHost.exe
          "C:\Windows\System32\ShellHost.exe"
          2⤵
          • Suspicious use of SetWindowsHookEx
          PID:2700
      • C:\Windows\system32\sihost.exe
        sihost.exe
        1⤵
        • Suspicious use of FindShellTrayWindow
        PID:1948
      • C:\Windows\system32\sihost.exe
        sihost.exe
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:2428
        • C:\Windows\explorer.exe
          explorer.exe /LOADSAVEDWINDOWS
          2⤵
          • Boot or Logon Autostart Execution: Active Setup
          • Enumerates connected drives
          • Checks SCSI registry key(s)
          • Modifies Internet Explorer settings
          • Modifies registry class
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          • Suspicious use of SetWindowsHookEx
          PID:2284
        • C:\Windows\System32\ShellHost.exe
          "C:\Windows\System32\ShellHost.exe"
          2⤵
          • Suspicious use of SetWindowsHookEx
          PID:5308
      • C:\Windows\System32\rundll32.exe
        C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {9BA05972-F6A8-11CF-A442-00A0C90A8F39} -Embedding
        1⤵
          PID:4576
        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
          1⤵
            PID:4644
          • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
            "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
            1⤵
              PID:3804
            • C:\Windows\system32\sihost.exe
              sihost.exe
              1⤵
                PID:5324
              • C:\Windows\system32\sihost.exe
                sihost.exe
                1⤵
                • Suspicious use of WriteProcessMemory
                PID:2664
                • C:\Windows\explorer.exe
                  explorer.exe /LOADSAVEDWINDOWS
                  2⤵
                  • Boot or Logon Autostart Execution: Active Setup
                  • Enumerates connected drives
                  • Checks SCSI registry key(s)
                  • Modifies Internet Explorer settings
                  • Modifies registry class
                  • Suspicious use of SetWindowsHookEx
                  PID:1364
                • C:\Windows\System32\ShellHost.exe
                  "C:\Windows\System32\ShellHost.exe"
                  2⤵
                  • Suspicious use of SetWindowsHookEx
                  PID:544
              • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
                "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
                1⤵
                  PID:4840
                • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                  "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                  1⤵
                    PID:5276

                  Network

                        MITRE ATT&CK Enterprise v16

                        Replay Monitor

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                        Downloads

                        defender.exe
                        • Path C:\ProgramData\defender.exe
                        • Size 868KB
                        • SHA256 f487caba40aa36a242385343336461468ef57cfd9b9d9026c53fb8f544506ba9
                        • MD5 SHA1 SHA512 SSDEEP TLSH
                        Submit Download

                        IconCache.db
                        • Path C:\Users\Admin\AppData\Local\IconCache.db
                        • Size 14KB
                        • SHA256 cb5978245ecbddf25f06dd0375e4304b9f650f1d9e3ad876dbd0faf09aec4718
                        • MD5 SHA1 SHA512 SSDEEP TLSH
                        Submit Download

                        DiscoverCacheData.dat
                        • Path C:\Users\Admin\AppData\Local\Microsoft\PenWorkspace\DiscoverCacheData.dat
                        • Size 1022B
                        • SHA256 dc289e5a54bf50f28e14045684c682c22e50e4f5540471b964f27f5b315792fd
                        • MD5 SHA1 SHA512 TLSH
                        Submit Download

                        {6b5db91d-9910-4b30-8042-ae2d644285ca}.png
                        • Path C:\Users\Admin\AppData\Local\Temp\{6b5db91d-9910-4b30-8042-ae2d644285ca}.png
                        • Size 52KB
                        • SHA256 1960318ccfd372be917d0d13ac915997152f8d4208f44263c350c838e97a71cd
                        • MD5 SHA1 SHA512 SSDEEP TLSH
                        Submit Download

                        Malware Protection.lnk
                        • Path C:\Users\Public\Desktop\Malware Protection.lnk
                        • Size 679B
                        • SHA256 65aebf415b5ff777900fe121646d4181e2df788510c6df94777cf5bc4ef30968
                        • MD5 SHA1 SHA512 TLSH
                        Submit Download

                        memory/668-20-0x0000000000400000-0x0000000000A2C000-memory.dmp
                        Download

                        memory/668-23-0x0000000000400000-0x0000000000A2C000-memory.dmp
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                        memory/1652-24-0x0000000002670000-0x0000000002680000-memory.dmp
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                        memory/1652-1-0x0000000002670000-0x0000000002680000-memory.dmp
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                        memory/1652-2-0x0000000000400000-0x00000000006F4000-memory.dmp
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                        memory/1652-0-0x0000000000400000-0x00000000006F4000-memory.dmp
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                        memory/1652-25-0x0000000000400000-0x00000000006F4000-memory.dmp
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                        memory/1680-32-0x0000000000400000-0x0000000000A2C000-memory.dmp
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                        memory/1680-60-0x0000000000400000-0x0000000000A2C000-memory.dmp
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                        memory/1680-26-0x0000000000400000-0x0000000000A2C000-memory.dmp
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                        memory/1680-28-0x0000000000400000-0x0000000000A2C000-memory.dmp
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                        memory/1680-27-0x00000000009EB000-0x00000000009EC000-memory.dmp
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                        memory/1680-17-0x0000000000400000-0x0000000000A2C000-memory.dmp
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                        memory/1680-14-0x0000000000400000-0x0000000000A2C000-memory.dmp
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                        memory/1680-31-0x0000000000400000-0x0000000000A2C000-memory.dmp
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                        memory/1680-77-0x0000000000400000-0x0000000000A2C000-memory.dmp
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                        memory/1680-16-0x00000000009EB000-0x00000000009EC000-memory.dmp
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                        memory/1680-13-0x0000000002880000-0x0000000002890000-memory.dmp
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                        memory/1680-12-0x0000000000400000-0x0000000000A2C000-memory.dmp
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                        memory/1680-56-0x0000000000400000-0x0000000000A2C000-memory.dmp
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                        memory/1680-18-0x0000000000400000-0x0000000000A2C000-memory.dmp
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                        memory/1680-64-0x0000000000400000-0x0000000000A2C000-memory.dmp
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                        memory/1680-65-0x0000000000400000-0x0000000000A2C000-memory.dmp
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                        memory/1680-66-0x0000000000400000-0x0000000000A2C000-memory.dmp
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                        memory/1680-67-0x0000000000400000-0x0000000000A2C000-memory.dmp
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                        memory/1680-70-0x0000000000400000-0x0000000000A2C000-memory.dmp
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                        memory/1680-71-0x0000000000400000-0x0000000000A2C000-memory.dmp
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                        memory/1680-72-0x0000000000400000-0x0000000000A2C000-memory.dmp
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                        memory/1680-74-0x0000000000400000-0x0000000000A2C000-memory.dmp
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                        memory/1680-75-0x0000000000400000-0x0000000000A2C000-memory.dmp
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                        memory/1680-76-0x0000000000400000-0x0000000000A2C000-memory.dmp
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                        memory/5828-35-0x0000000002230000-0x0000000002231000-memory.dmp
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