Overview

overview

7

Static

static

5

PDF-XChang...4).zip

windows10-2004-x64

1

PDF-XChang...4).zip

windows11-ltsc_2024-x64

1

PDF-XChang...64.dll

windows10-2004-x64

7

PDF-XChang...64.dll

windows10-2004-x64

7

PDF-XChang...er.exe

windows10-2004-x64

1

PDF-XChang...rL.exe

windows10-2004-x64

1

PDF-XChang...86.exe

windows10-2004-x64

3

PDF-XChang...er.exe

windows10-2004-x64

3

PDF-XChang...rL.exe

windows10-2004-x64

3

PDF-XChang...64.msi

windows10-2004-x64

7

PDF-XChang...64.msi

windows11-ltsc_2024-x64

7

Analysis

  • max time kernel
    149s
  • max time network
    189s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    30/07/2026, 10:51

Sharing

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General

  • Target
    PDF-XChange Pro 11.0.1 (x64)/Setup/ProV11.x64.msi
  • Size 424.5MB
  • Sample260730-mx4tmagb59
  • SHA256 93e938b2a9a25216325a898ed87cf523e6718f8f3f5b6d56599314e6f6b1f47f
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
adwarediscoverypersistenceprivilege_escalationransomwarespyware

Malware Config

Signatures

  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    persistenceprivilege_escalation
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 28 IoCs
  • Badlisted process makes network request 3 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Drops desktop.ini file(s) 1 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Drops file in System32 directory 5 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 29 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 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 5 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 40 IoCs
    adwarespyware
  • Modifies data under HKEY_USERS 3 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 5 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 service COM API

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

    ransomware

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I "C:\Users\Admin\AppData\Local\Temp\PDF-XChange Pro 11.0.1 (x64)\Setup\ProV11.x64.msi"
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2416
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3724
    • C:\Windows\System32\MsiExec.exe
      C:\Windows\System32\MsiExec.exe -Embedding 94B387AECA49450A85B6EC6188F4F496 C
      2⤵
      • Loads dropped DLL
      PID:452
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4872
      • C:\Windows\System32\MsiExec.exe
        C:\Windows\System32\MsiExec.exe -Embedding 38329C5DFECD53C0126CBBD8E839EB95
        2⤵
        • Loads dropped DLL
        • Drops desktop.ini file(s)
        • Suspicious behavior: EnumeratesProcesses
        PID:592
      • C:\Windows\System32\MsiExec.exe
        C:\Windows\System32\MsiExec.exe -Embedding 863EAF9FFEFE62312240530D17B64E68 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:4464
      • C:\Program Files\PDF-XChange\PDF Printer Standard\Drivers\PrnInstaller.exe
        "C:\Program Files\PDF-XChange\PDF Printer Standard\Drivers\\PrnInstaller.exe" /L /I_D_R_M_P /Z /N "PDF-XChange Standard"
        2⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        PID:2296
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3612
    • C:\Program Files\PDF-XChange\Updater\PXCUpdater.exe
      "C:\Program Files\PDF-XChange\Updater\PXCUpdater.exe"
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4560

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a101f.rbs
          • Path C:\Config.Msi\e5a101f.rbs
          • Size 336KB
          • SHA256 9cffdf3300195c23a18edf1db75a805c63e25eb0bcc97fc65cce925e410244b6
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          Index.rseg
          • Path C:\Program Files\Common Files\PDF-XChange\ABBYY\12.4.7.6336\Data\Index.rseg
          • Size 266B
          • SHA256 811a7c1e74e0644843c4dd53cec812318362a0131a602bea106e7ffb0df5d8af
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          PXCEditor.exe
          • Path C:\Program Files\PDF-XChange\PDF Editor\PXCEditor.exe
          • Size 1.6MB
          • SHA256 c714a69ca17e31e1c564ddcaec2f520340e59411490c508a4baecba483838d00
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          PrnInst.inf
          • Path C:\Program Files\PDF-XChange\PDF Printer Standard\Drivers\PrnInst.inf
          • Size 718B
          • SHA256 ac4e00324b366eaf36b25d82e25fa5ef2d5a969b3661d57446b3a0a5ca880516
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          PrnInstaller.exe
          • Path C:\Program Files\PDF-XChange\PDF Printer Standard\Drivers\PrnInstaller.exe
          • Size 1.6MB
          • SHA256 5933bb8b237eaa5797a137b253ab1f1b55f1f880d4e21d81930d04355f2ad237
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          pxcpm.dll
          • Path C:\Program Files\PDF-XChange\PDF Printer Standard\Drivers\x64\pxcpm.dll
          • Size 931KB
          • SHA256 73f11b1274cf2dcb91a2fc71c15baf9ff1075f444b62b83d8d7d4a00b0075096
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          PXCTools.exe
          • Path C:\Program Files\PDF-XChange\PDF Tools\PXCTools.exe
          • Size 8.2MB
          • SHA256 a2483c26aca01678029479c02913ddef7b1e86e5597af1aaf356d8188127931b
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          PDFProperties.propdesc
          • Path C:\Program Files\PDF-XChange\Shell Extensions\PDFProperties.propdesc
          • Size 7KB
          • SHA256 a09aabc953daef0f5820a94f0540e10f0ba1079513bda9a717768ac056f0dd81
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          357F04AD41BCF5FE18FCB69F60C6680F_DD1473C9B4F9AE265E92C0B111EF6ED5
          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\357F04AD41BCF5FE18FCB69F60C6680F_DD1473C9B4F9AE265E92C0B111EF6ED5
          • Size 1KB
          • SHA256 ec1114a1a0cdd49df98f8b6eb8b1d93bf1cc6e8a3d261e7e5e755f6496fbc7db
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          9CB4373A4252DE8D2212929836304EC5_1AB74AA2E3A56E1B8AD8D3FEC287554E
          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\9CB4373A4252DE8D2212929836304EC5_1AB74AA2E3A56E1B8AD8D3FEC287554E
          • Size 1KB
          • SHA256 a87a498a82b6c5f451d5e39f949dfedfed2faa99ef888e254c4ee3d625482af6
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          B039FEA45CB4CC4BBACFC013C7C55604_50385F8EB1F713E33924A830D7A2A41C
          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B039FEA45CB4CC4BBACFC013C7C55604_50385F8EB1F713E33924A830D7A2A41C
          • Size 1KB
          • SHA256 f83eb4c3187f9d556ef9090a8e75a2cf351fc3b3303d9e88e27ff0d604df0813
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          357F04AD41BCF5FE18FCB69F60C6680F_DD1473C9B4F9AE265E92C0B111EF6ED5
          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\357F04AD41BCF5FE18FCB69F60C6680F_DD1473C9B4F9AE265E92C0B111EF6ED5
          • Size 536B
          • SHA256 a4f122d057470ec3dbbd918794a9ade962b33d377ced118f24a5bb62074346ac
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          9CB4373A4252DE8D2212929836304EC5_1AB74AA2E3A56E1B8AD8D3FEC287554E
          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\9CB4373A4252DE8D2212929836304EC5_1AB74AA2E3A56E1B8AD8D3FEC287554E
          • Size 536B
          • SHA256 76cf3ea983e8ca430fc17363a7471f736de4d94ad66e55b7890fa7af10406d45
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          B039FEA45CB4CC4BBACFC013C7C55604_50385F8EB1F713E33924A830D7A2A41C
          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B039FEA45CB4CC4BBACFC013C7C55604_50385F8EB1F713E33924A830D7A2A41C
          • Size 508B
          • SHA256 d21fd87019f8d84b0dbfa1d8ec1e0abb9d58e9ebe069f185397bc336c69c3fd3
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          MSI2D9E.tmp
          • Path C:\Users\Admin\AppData\Local\Temp\MSI2D9E.tmp
          • Size 1.9MB
          • SHA256 afd8bfd3c7ceb3759f7154e175a9cf2c940660f17182f5f439018998f919d3f5
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          MSI91e5c.LOG
          • Path C:\Users\Admin\AppData\Local\Temp\MSI91e5c.LOG
          • Size 111KB
          • SHA256 e2097206f868aae449f10055fddb077180ea879c798e41c6060934786afacd5a
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          prnInstaller.log
          • Path C:\Users\Admin\AppData\Local\Temp\prnInstaller.log
          • Size 874B
          • SHA256 349d2cc8ace4631dba891b7d8f9ed2f61bca94c59afe1d971df5eaf0f8a2ab88
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          prnInstaller.log
          • Path C:\Users\Admin\AppData\Local\Temp\prnInstaller.log
          • Size 1KB
          • SHA256 bec2a992f317c0908e9096da421ac8ad792075f0f65c1bb3380ddd03d9bd78c1
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          metadata-2
          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 f880288744ecd31cb457541d883e0fff74129798029472a629da6f641df3d592
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          {978bad02-4e4d-44c2-9aad-11004cbb34c5}_OnDiskSnapshotProp
          • Path \??\Volume{63ef4f52-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{978bad02-4e4d-44c2-9aad-11004cbb34c5}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 6ecff7a2f363ce24a2e59a527c82fd44e925a4e3c098d196794d80ac2ab504fa
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download