Analysis

  • max time kernel
    148s
  • max time network
    132s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/08/2026, 07:12

General

  • Target
    eStatement742740249_pdf.msi
  • Size 8.2MB
  • Sample260805-h1tevafe75
  • SHA256 83fd85f06f6d5956da5878c385c830ff7677468b71cf63abb4a084f713ec455d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 2 IoCs

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

  • Loads dropped DLL 8 IoCs
  • 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 11 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.

  • Suspicious use of AdjustPrivilegeToken 53 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 4 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\eStatement742740249_pdf.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:2996
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2800
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:252
    • C:\Windows\System32\MsiExec.exe
      C:\Windows\System32\MsiExec.exe -Embedding 6C26C162871728112BAC42E8B3514995
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5384
      • C:\Windows\system32\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSI39E2.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240728828 2 Atera.Agent.Installer.Msi.Ca!Atera.Agent.Installer.Msi.Ca.CustomActions.GenerateAgentId
        3⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • Suspicious use of AdjustPrivilegeToken
        PID:4972
      • C:\Windows\system32\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSI3F23.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240729953 6 Atera.Agent.Installer.Msi.Ca!Atera.Agent.Installer.Msi.Ca.CustomActions.ShouldContinueInstallation
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • Drops file in Windows directory
        • Suspicious use of AdjustPrivilegeToken
        PID:1680
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:3880

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        MSI39E2.tmp

        • Path C:\Windows\Installer\MSI39E2.tmp
        • Size 346KB
        • SHA256 49ebef91ef1b97e84466c706b9b3639ef936ce28662a2c9f87dc5519a268ca73
        • MD5 SHA1 SHA512 SSDEEP TLSH

        CustomAction.config

        • Path C:\Windows\Installer\SFXCA2021108D7644FA88B084E46D774EFF91\CustomAction.config
        • Size 956B
        • SHA256 2dbc73a3bc444a9119c9b5e20276698384d9ad9535a8a7547c44d1b9a8d67346
        • MD5 SHA1 SHA512 TLSH

        WixToolset.Dtf.WindowsInstaller.dll

        • Path C:\Windows\Installer\SFXCA2021108D7644FA88B084E46D774EFF91\WixToolset.Dtf.WindowsInstaller.dll
        • Size 193KB
        • SHA256 a614884ea627da1925131ebf41e8ae202caeac0fe543b86384f5eb2bfaf1aa75
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Atera.Agent.Installer.Msi.Ca.dll

        • Path C:\Windows\Installer\SFXCA9707CD963E4087688B0C10E6EB0F7925\Atera.Agent.Installer.Msi.Ca.dll
        • Size 74KB
        • SHA256 3b409ea721a72c23e7307a37a1b1778860194c53ddeefd6921a4b114c99989c4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        metadata-2

        • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
        • Size 26.1MB
        • SHA256 35b462b0e2d2e9cacd9168cd742f4b0152da3ac028e65ab68727a8effba58721
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {38bdc3f7-09d5-4218-9329-031bc8fc1cd1}_OnDiskSnapshotProp

        • Path \??\Volume{5d76dc85-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{38bdc3f7-09d5-4218-9329-031bc8fc1cd1}_OnDiskSnapshotProp
        • Size 6KB
        • SHA256 2acb0d2e4ecbdff12b4ae2efc92cdf9c14bdbfdecae11ae84f78f44390f90f60
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1680-44-0x0000029D2DAF0000-0x0000029D2DB02000-memory.dmp

        memory/1680-45-0x0000029D2DB50000-0x0000029D2DB8C000-memory.dmp

        memory/4972-18-0x00000173D21B0000-0x00000173D21E4000-memory.dmp

        memory/4972-23-0x00000173D1330000-0x00000173D1346000-memory.dmp