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
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-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
adwarebootkitdiscoverypersistenceransomwarespywareupx

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 5 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
  • Enumerates connected drives 3 TTPs 31 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 5 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 4 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 7 IoCs
  • Suspicious use of WriteProcessMemory 6 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
  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

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:4996
    • 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:896
  • 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:924
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:4612
    • C:\Windows\explorer.exe
      explorer.exe /LOADSAVEDWINDOWS
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3128
  • 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:2768
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1436
    • C:\Windows\explorer.exe
      explorer.exe /LOADSAVEDWINDOWS
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4632
  • 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
    PID:4788
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Modifies registry class
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:3912
    • C:\Windows\explorer.exe
      explorer.exe /LOADSAVEDWINDOWS
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2112
  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
    1⤵
      PID:3596
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Modifies registry class
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3608
      • C:\Windows\explorer.exe
        explorer.exe /LOADSAVEDWINDOWS
        2⤵
        • Boot or Logon Autostart Execution: Active Setup
        • Enumerates connected drives
        • Checks SCSI registry key(s)
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SendNotifyMessage
        PID:3676
    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
      1⤵
      • Suspicious use of SetWindowsHookEx
      PID:5036
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
        PID:1232
      • C:\Windows\system32\sihost.exe
        sihost.exe
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:1988
        • C:\Windows\explorer.exe
          explorer.exe /LOADSAVEDWINDOWS
          2⤵
          • Modifies registry class
          PID:3896
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Boot or Logon Autostart Execution: Active Setup
        • Enumerates connected drives
        • Checks SCSI registry key(s)
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of SetWindowsHookEx
        PID:3472
      • C:\Windows\System32\rundll32.exe
        C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {9BA05972-F6A8-11CF-A442-00A0C90A8F39} -Embedding
        1⤵
          PID:4924

        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

              B76BE66D46C355931939D8CF818D03FD_68DC46933CF3DE41CC968E0784D43DC3
              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B76BE66D46C355931939D8CF818D03FD_68DC46933CF3DE41CC968E0784D43DC3
              • Size 1KB
              • SHA256 65c96edffc7bf7cd6479ef7e9617c976e5d9a59e7b6c94d5deb271dee86ada41
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              E2C6CBAF0AF08CF203BA74BF0D0AB6D5_EAF5D55D93603A879FA973006301F24F
              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_EAF5D55D93603A879FA973006301F24F
              • Size 471B
              • SHA256 1b6eea05b731dd2fce70d0006ca86d832068cbc69728380461f1cef89917d317
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              B76BE66D46C355931939D8CF818D03FD_68DC46933CF3DE41CC968E0784D43DC3
              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B76BE66D46C355931939D8CF818D03FD_68DC46933CF3DE41CC968E0784D43DC3
              • Size 422B
              • SHA256 617fa06c7b7321193639e3f35d378fbfda6afd9935d812dacaeada0af9ce5e77
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              E2C6CBAF0AF08CF203BA74BF0D0AB6D5_EAF5D55D93603A879FA973006301F24F
              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_EAF5D55D93603A879FA973006301F24F
              • Size 412B
              • SHA256 1153d0196042687caa57b7a69cde8dd2a90482293fc4b24139b15ef5914b934b
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              DiscoverCacheData.dat
              • Path C:\Users\Admin\AppData\Local\Microsoft\PenWorkspace\DiscoverCacheData.dat
              • Size 1022B
              • SHA256 78cf9b8599ef74e0a279f5c8bcc1042d76f559f2c0ae777d1fe35389997a279c
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              {8CD2ADE3-0284-48CB-A4D2-59732A98BF38}.png
              • Path C:\Users\Admin\AppData\Local\Temp\{8CD2ADE3-0284-48CB-A4D2-59732A98BF38}.png
              • Size 6KB
              • SHA256 8c98c856e4d43f705ff9a5c9a55f92e1885765654912b4c75385c3ea2fdef4a7
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              Malware Protection.lnk
              • Path C:\Users\Public\Desktop\Malware Protection.lnk
              • Size 679B
              • SHA256 262c036a197e93a14e599cce26602b635f155cb6c637e9f146ccc028c2f1476b
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              memory/896-74-0x0000000000400000-0x0000000000A2C000-memory.dmp
              Download

              memory/896-15-0x0000000000400000-0x0000000000A2C000-memory.dmp
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              memory/896-20-0x0000000000400000-0x0000000000A2C000-memory.dmp
              Download

              memory/896-88-0x0000000000400000-0x0000000000A2C000-memory.dmp
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              memory/896-79-0x0000000000400000-0x0000000000A2C000-memory.dmp
              Download

              memory/896-87-0x0000000000400000-0x0000000000A2C000-memory.dmp
              Download

              memory/896-77-0x0000000000400000-0x0000000000A2C000-memory.dmp
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              memory/896-27-0x0000000000400000-0x0000000000A2C000-memory.dmp
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              memory/896-29-0x0000000000400000-0x0000000000A2C000-memory.dmp
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              memory/896-76-0x0000000000400000-0x0000000000A2C000-memory.dmp
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              memory/896-31-0x0000000000400000-0x0000000000A2C000-memory.dmp
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              memory/896-32-0x0000000000400000-0x0000000000A2C000-memory.dmp
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              memory/896-17-0x0000000000400000-0x0000000000A2C000-memory.dmp
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              memory/896-75-0x0000000000400000-0x0000000000A2C000-memory.dmp
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              memory/896-18-0x0000000000400000-0x0000000000A2C000-memory.dmp
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              memory/896-82-0x0000000000400000-0x0000000000A2C000-memory.dmp
              Download

              memory/896-14-0x0000000000400000-0x0000000000A2C000-memory.dmp
              Download

              memory/896-19-0x0000000000400000-0x0000000000A2C000-memory.dmp
              Download

              memory/896-86-0x0000000000400000-0x0000000000A2C000-memory.dmp
              Download

              memory/896-83-0x0000000000400000-0x0000000000A2C000-memory.dmp
              Download

              memory/896-57-0x0000000000400000-0x0000000000A2C000-memory.dmp
              Download

              memory/896-85-0x0000000000400000-0x0000000000A2C000-memory.dmp
              Download

              memory/896-67-0x0000000000400000-0x0000000000A2C000-memory.dmp
              Download

              memory/924-30-0x0000000000400000-0x0000000000A2C000-memory.dmp
              Download

              memory/924-26-0x0000000000400000-0x0000000000A2C000-memory.dmp
              Download

              memory/924-23-0x0000000000400000-0x0000000000A2C000-memory.dmp
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              memory/2112-53-0x0000000004BD0000-0x0000000004BD1000-memory.dmp
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              memory/3128-42-0x0000000002560000-0x0000000002561000-memory.dmp
              Download

              memory/3472-65-0x00000000047D0000-0x00000000047D1000-memory.dmp
              Download

              memory/3676-59-0x0000000002760000-0x0000000002761000-memory.dmp
              Download

              memory/4996-7-0x0000000000404000-0x0000000000405000-memory.dmp
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              memory/4996-0-0x0000000000400000-0x00000000006F4000-memory.dmp
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              memory/4996-1-0x0000000000850000-0x0000000000860000-memory.dmp
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              memory/4996-2-0x0000000000400000-0x00000000006F4000-memory.dmp
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              memory/4996-24-0x0000000000400000-0x00000000006F4000-memory.dmp
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              memory/4996-21-0x0000000000850000-0x0000000000860000-memory.dmp
              Download