Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    07/11/2026, 21:49

General

  • Target
    BrowserTamer-6.3.2-win64.msi
  • Size 1.9MB
  • Sample261107-1pcbasf16j
  • SHA256 e4876eb35671376aa3a40db056563f6ca6c22b2d64b6afdcf8204100acba3c7c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • 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 Windows directory 8 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Modifies registry class 40 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\BrowserTamer-6.3.2-win64.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:3692
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4568
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4840
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:804

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59ac06.rbs

          • Path C:\Config.Msi\e59ac06.rbs
          • Size 12KB
          • SHA256 720803592da29a0335372ee359afbf8482b365c35402bb0390b40a32004d840d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e59ac07.msi

          • Path C:\Windows\Installer\e59ac07.msi
          • Size 1.9MB
          • SHA256 e4876eb35671376aa3a40db056563f6ca6c22b2d64b6afdcf8204100acba3c7c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 5237c2ea7505bec519d2a08c0f0355c9c2e713f12b58df874cc3092a683c68b7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {0c158fcd-2f61-4f52-b40e-262313f7d32b}_OnDiskSnapshotProp

          • Path \??\Volume{d05fbc87-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{0c158fcd-2f61-4f52-b40e-262313f7d32b}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 61e408830ad2ac8c88bac3ca8867d87aace58fb5d1cc6df81cf4ec86cfc06735
          • MD5 SHA1 SHA512 SSDEEP TLSH