Analysis

  • max time kernel
    148s
  • max time network
    126s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/08/2026, 04:01

General

  • Target
    install_upr011.msi
  • Size 6.2MB
  • Sample260803-elpassyapc
  • SHA256 58aada528a0a73a06548d41bef3d6585bec71441bd7aede131b836209624ad53
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Badlisted process makes network request 5 IoCs

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

  • 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 6 IoCs
  • Drops file in Windows directory 13 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 data under HKEY_USERS 9 IoCs
  • Modifies registry class 22 IoCs
  • Suspicious behavior: EnumeratesProcesses 38 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 2 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\install_upr011.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:4712
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • 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:3768
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3940
    • C:\Windows\System32\MsiExec.exe
      C:\Windows\System32\MsiExec.exe -Embedding 2AD17958D5BB7F1FD36436AA8A2E07A7 E Global\MSI0000
      2⤵
      • Loads dropped DLL
      • Badlisted process makes network request
      • Drops file in System32 directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:3032
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:1228

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        e595674.rbs

        • Path C:\Config.Msi\e595674.rbs
        • Size 7KB
        • SHA256 1d4fc47fe3f53c32115ae00f4d61c0fbd8af47550de28ac2f56e4c58a5a4efc3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MSI5D0B.tmp

        • Path C:\Windows\Installer\MSI5D0B.tmp
        • Size 6.2MB
        • SHA256 f0c3826fb3f4aa7e1cc97b5e8d4350f33a9e875467408c7d8731315336dac940
        • MD5 SHA1 SHA512 SSDEEP TLSH

        e595673.msi

        • Path C:\Windows\Installer\e595673.msi
        • Size 6.2MB
        • SHA256 58aada528a0a73a06548d41bef3d6585bec71441bd7aede131b836209624ad53
        • MD5 SHA1 SHA512 SSDEEP TLSH

        metadata-2

        • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
        • Size 26.1MB
        • SHA256 a7366cff865da611b9f6ce69c6cf257217d2fefdd107c6ad7aab1c44e5f13935
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {531c30f9-a099-4a92-b88f-e0b080dc6f6e}_OnDiskSnapshotProp

        • Path \??\Volume{c61f8367-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{531c30f9-a099-4a92-b88f-e0b080dc6f6e}_OnDiskSnapshotProp
        • Size 6KB
        • SHA256 3275688fb6bc8b72e57fc5cb092d62baf4d9e076f0cba485d99ce35798110ca9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3032-14-0x00007FFB20410000-0x00007FFB20412000-memory.dmp

        memory/3032-15-0x00007FFAFC2E0000-0x00007FFAFC93C000-memory.dmp

        memory/3032-18-0x00007FFB088F0000-0x00007FFB08902000-memory.dmp

        memory/3032-23-0x00007FFB088F0000-0x00007FFB08902000-memory.dmp

        memory/3032-43-0x00007FFB088F0000-0x00007FFB08902000-memory.dmp