Analysis

  • max time kernel
    150s
  • max time network
    131s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/07/2026, 02:01

General

  • Target
    Install_28n001.msi
  • Size 7.7MB
  • Sample260729-cfn2qsscla
  • SHA256 49cf2ff909162e7aa48c37b8249fed167f03c542178362ec4af9ab33acdc60ce
  • 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 8 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_28n001.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:5636
  • 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:5504
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3724
    • C:\Windows\System32\MsiExec.exe
      C:\Windows\System32\MsiExec.exe -Embedding 40A25531E5130DC2A986EB978A28F082 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:5856
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:5772

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        e59bfcd.rbs

        • Path C:\Config.Msi\e59bfcd.rbs
        • Size 7KB
        • SHA256 11785678698ebdb717656d530731ef5b51f564664e5006d16e17c518e63568bd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MSIC51C.tmp

        • Path C:\Windows\Installer\MSIC51C.tmp
        • Size 7.7MB
        • SHA256 8e94f1b2fd82b6e354f845b45782f03202b1decdf3f32b7a6446cae4e7ac1ecc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        e59bfcc.msi

        • Path C:\Windows\Installer\e59bfcc.msi
        • Size 7.7MB
        • SHA256 49cf2ff909162e7aa48c37b8249fed167f03c542178362ec4af9ab33acdc60ce
        • MD5 SHA1 SHA512 SSDEEP TLSH

        metadata-2

        • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
        • Size 26.1MB
        • SHA256 a80170f708557f6426efac2b91b2d624d139a5878aaeb4524148250d0622b06d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {e8e15fa7-813f-45b8-85b0-60026a486aad}_OnDiskSnapshotProp

        • Path \??\Volume{6392210f-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{e8e15fa7-813f-45b8-85b0-60026a486aad}_OnDiskSnapshotProp
        • Size 6KB
        • SHA256 f6d32ae8f51d006d169c3d3f528f52c6d3a760707f16a741e66e7b1a5fbc7d7d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/5856-14-0x00007FFD2B2F0000-0x00007FFD2B2F2000-memory.dmp

        memory/5856-15-0x00007FFD08270000-0x00007FFD088D1000-memory.dmp

        memory/5856-18-0x00007FFD1AF10000-0x00007FFD1AF22000-memory.dmp

        memory/5856-45-0x00007FFD1AF10000-0x00007FFD1AF22000-memory.dmp