Overview

overview

7

Static

static

3

rvtools4.8.1.msi

windows10-2004-x64

7

rvtools4.8.1.msi

windows11-ltsc_2024-x64

7

Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/07/2026, 16:29

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General

  • Target
    rvtools4.8.1.msi
  • Size 10.2MB
  • Sample260729-tzfcdazxbt
  • SHA256 4bb5874756ee936ddbb02d110a4ff1c273496caaa43531e353a0cadaf4c7fabd
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
discoverypersistenceprivilege_escalationransomware

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

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

  • Drops file in Program Files directory 32 IoCs
  • Drops file in Windows directory 28 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
    persistenceprivilege_escalation
  • 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 5 IoCs

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

  • Modifies data under HKEY_USERS 3 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • 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\rvtools4.8.1.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:2932
  • 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 data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3232
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3240
      • C:\Windows\SysWOW64\msiexec.exe
        "C:\Windows\SysWOW64\msiexec.exe" /i "C:\Users\Admin\AppData\Local\SampleCorp\SampleApp\rvtools4.8.1.msi"
        2⤵
        • Enumerates connected drives
        • System Location Discovery: System Language Discovery
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        PID:5236
      • C:\Windows\Installer\MSIA928.tmp
        "C:\Windows\Installer\MSIA928.tmp"
        2⤵
        • Executes dropped EXE
        PID:4112
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 7C2E5A1D573E882AF84F47E83B09FB5E C
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2720
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding C5FE3582A8E9881360C3197873B75BF3
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4648
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:4348

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59a242.rbs
          • Path C:\Config.Msi\e59a242.rbs
          • Size 8KB
          • SHA256 fd9bc8dd5b27fb90f57f282a782ee64a14b601c08777905c7a01b4d7651093aa
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          e59a245.rbs
          • Path C:\Config.Msi\e59a245.rbs
          • Size 19KB
          • SHA256 a7f682f4b62e95a3a276cc5b61c03e5d6025688dd1b97b0f781a0842edef38bf
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          rvtools4.8.1.msi
          • Path C:\Users\Admin\AppData\Local\SampleCorp\SampleApp\rvtools4.8.1.msi
          • Size 8.1MB
          • SHA256 0a3f73f9fed85ff4f9756cbc20437eee3c5d100f1d0b764ec47665697aabfb47
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          MSIB433.tmp
          • Path C:\Users\Admin\AppData\Local\Temp\MSIB433.tmp
          • Size 285KB
          • SHA256 f74c97b1a53541b059d3bfafe41a79005ce5065f8210d7de9f1b600dc4e28aa0
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          MSIA928.tmp
          • Path C:\Windows\Installer\MSIA928.tmp
          • Size 2.5MB
          • SHA256 1f33a47299d426dc65b57d5b285b543dcb8bd38fa7aba918243ec94795a890af
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          e59a241.msi
          • Path C:\Windows\Installer\e59a241.msi
          • Size 10.2MB
          • SHA256 4bb5874756ee936ddbb02d110a4ff1c273496caaa43531e353a0cadaf4c7fabd
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          metadata-2
          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 b939715669aaf922166125eec5afe54b669e43baaa1884e31b9fbbc6af528344
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          {3434103f-61d6-44ae-a57e-2a36a4e0e84f}_OnDiskSnapshotProp
          • Path \??\Volume{c61fa831-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{3434103f-61d6-44ae-a57e-2a36a4e0e84f}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 fe046f7f4523602aee7cb65f143e2e2763e4fd1c73d46d0891ffee60f3db0d2a
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download