Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    02/08/2026, 02:10

General

  • Target
    install_s0up005.msi
  • Size 7.7MB
  • Sample260802-clsbcabp2t
  • SHA256 81ba153b07c18d95f4aeb9eaa56472486866e0ff2fe46ac28f2af0a859cc7bc6
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Badlisted process makes network request 8 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 4 IoCs
  • Drops file in Windows directory 9 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 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_s0up005.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:4908
  • 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 WriteProcessMemory
    PID:4988
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1076
    • C:\Windows\System32\MsiExec.exe
      C:\Windows\System32\MsiExec.exe -Embedding BD78E5CA483C694330C5C24DC9912F40 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
      PID:2876
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:5404

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        e592a34.rbs

        • Path C:\Config.Msi\e592a34.rbs
        • Size 7KB
        • SHA256 662636f01892ce5eb9ac289520af44c4b6b4e0f118f03c91c0a09362ff4531f5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MSI2BBA.tmp

        • Path C:\Windows\Installer\MSI2BBA.tmp
        • Size 7.6MB
        • SHA256 1f6b8a0b0fb5bc11fa65065d8c056edf4a03f2f1cd7bd2d998dd3c9395d1e57f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        e592a33.msi

        • Path C:\Windows\Installer\e592a33.msi
        • Size 7.7MB
        • SHA256 81ba153b07c18d95f4aeb9eaa56472486866e0ff2fe46ac28f2af0a859cc7bc6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        metadata-2

        • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
        • Size 24.1MB
        • SHA256 3db4768e63926cab9b8271a2d7f8cd53907ecc4a0a2c774f466b24d72a33c2a4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {8f6b58d6-84bc-4c93-a62c-03da1f93b8cd}_OnDiskSnapshotProp

        • Path \??\Volume{73216430-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{8f6b58d6-84bc-4c93-a62c-03da1f93b8cd}_OnDiskSnapshotProp
        • Size 6KB
        • SHA256 1ad0ad65b31f4682a3f2fece7888b2c01aec70dd81893d0b886bcd904a1a7dc0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2876-12-0x00007FFF56F50000-0x00007FFF56F52000-memory.dmp

        memory/2876-14-0x00007FFF38D80000-0x00007FFF393B4000-memory.dmp

        memory/2876-16-0x00007FFF477D0000-0x00007FFF477E0000-memory.dmp

        memory/2876-39-0x00007FFF477D0000-0x00007FFF477E0000-memory.dmp