Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/10/2026, 12:10

General

  • Target
    Project%20specification%20document.msi
  • Size 8.7MB
  • Sample261023-pcjztscg86
  • SHA256 ab941aef3d30bd16a3d8b423eee0f434f45f949c71e93d212fc60f2366df9ba2
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 12 IoCs

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Powershell Invoke Web Request.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 24 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 System32 directory 6 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 43 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 8 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • System Time Discovery 1 TTPs 4 IoCs

    Adversary may gather the system time and/or time zone settings from a local or remote system.

  • 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 64 IoCs
  • Modifies registry class 22 IoCs
  • Suspicious behavior: EnumeratesProcesses 31 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 13 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\Project%20specification%20document.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:1652
  • 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:3132
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:5948
    • C:\Windows\System32\MsiExec.exe
      C:\Windows\System32\MsiExec.exe -Embedding 6D96E57DF5D8441C6B1524EFFBAFD723
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1012
      • C:\Windows\system32\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSI1A7E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240786750 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:3448
      • C:\Windows\system32\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSI2405.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240788500 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
        • Reads the TCP/IP host and domain name from the registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:5624
      • C:\Windows\system32\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSI38A7.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240793796 10 Atera.Agent.Installer.Msi.Ca!Atera.Agent.Installer.Msi.Ca.CustomActions.ReportMsiInstallStart
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • Drops file in Windows directory
        • Reads the TCP/IP host and domain name from the registry
        • Suspicious use of AdjustPrivilegeToken
        PID:4544
      • C:\Windows\system32\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSI3CB0.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240794859 15 Atera.Agent.Installer.Msi.Ca!Atera.Agent.Installer.Msi.Ca.CustomActions.DetectDotNetFrameworkRuntime
        3⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Time Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2468
      • C:\Windows\system32\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSI8FE5.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240816187 31 Atera.Agent.Installer.Msi.Ca!Atera.Agent.Installer.Msi.Ca.CustomActions.ReportMsiInstallEnd
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • Drops file in Windows directory
        • Reads the TCP/IP host and domain name from the registry
        PID:1484
    • C:\Windows\System32\MsiExec.exe
      C:\Windows\System32\MsiExec.exe -Embedding 76657DED4708265487C12C4AE5108DD1 E Global\MSI0000
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3740
      • C:\Program Files\ATERA Networks\AteraAgent\Agent\AteraAgent.exe
        "C:\Program Files\ATERA Networks\AteraAgent\Agent\AteraAgent.exe" init-settings --agent-id "f04fc602-defe-482c-9a43-f064550274b2" --account-id "5QGPL4zjAIBgQFnvTNs26FiJppYCq0WzQOH29bqUDyM=" --account-agent-installation-id "2fcd1ed7d8e54882ad9c55b32a2b7490" --environment "Production" --customer-id "1" --folder-id ""
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1236
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" -ExecutionPolicy Bypass -NoProfile -Command "[Net.ServicePointManager]::SecurityProtocol=[Net.SecurityProtocolType]::Tls12;Invoke-WebRequest -Uri 'https://dot.net/v1/dotnet-install.ps1' -OutFile \"C:\Program Files\ATERA Networks\AteraAgent\Agent\dotnet-install.ps1\""
        3⤵
        • Badlisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • Drops file in Windows directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        PID:5616
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" -ExecutionPolicy unrestricted -NoProfile -File "C:\Program Files\ATERA Networks\AteraAgent\Agent\dotnet-install.ps1" -Channel 10.0 -Runtime dotnet -InstallDir "C:\Program Files\ATERA Networks\AteraAgent\Agent\\.dotnet"
        3⤵
        • Badlisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • System Time Discovery
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        PID:2808
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:4732
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:2976
    • C:\Program Files\ATERA Networks\AteraAgent\Agent\AteraAgent.exe
      "C:\Program Files\ATERA Networks\AteraAgent\Agent\AteraAgent.exe"
      1⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Reads the TCP/IP host and domain name from the registry
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4604
      • C:\Windows\system32\cmd.exe
        "cmd.exe" /c "C:\Program Files\ATERA Networks\AteraAgent\Agent\.dotnet\dotnet.exe" --list-runtimes
        2⤵
        • Executes a command shell one-liner
        • System Time Discovery
        • Suspicious use of WriteProcessMemory
        PID:1852
        • C:\Program Files\ATERA Networks\AteraAgent\Agent\.dotnet\dotnet.exe
          "C:\Program Files\ATERA Networks\AteraAgent\Agent\.dotnet\dotnet.exe" --list-runtimes
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • System Time Discovery
          PID:2904

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a159d.rbs

          • Path C:\Config.Msi\e5a159d.rbs
          • Size 7KB
          • SHA256 077bc7960bcf4d108484e2505b95721d203a75fa19ba573e69512d44071a3801
          • MD5 SHA1 SHA512 SSDEEP TLSH

          dotnet.exe

          • Path C:\Program Files\ATERA Networks\AteraAgent\Agent\.dotnet\dotnet.exe
          • Size 163KB
          • SHA256 abce6623a6729059cf39bb0f728c4a7804f625895099c88c17e6e704661e09eb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          hostfxr.dll

          • Path C:\Program Files\ATERA Networks\AteraAgent\Agent\.dotnet\host\fxr\10.0.13\hostfxr.dll
          • Size 370KB
          • SHA256 2e6bf792d54303a54467102fd873a7d7a993f828e8d19c040e13e428e5f2d9c8
          • MD5 SHA1 SHA512 SSDEEP TLSH

          mscordaccore_amd64_amd64_10.0.1326.50504.dll

          • Path C:\Program Files\ATERA Networks\AteraAgent\Agent\.dotnet\shared\Microsoft.NETCore.App\10.0.13\mscordaccore_amd64_amd64_10.0.1326.50504.dll
          • Size 1.3MB
          • SHA256 4e2109c88298f0a614aac82b23310b13835673a8e192a6a8b75c25459e591169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          .settings.json

          • Path C:\Program Files\ATERA Networks\AteraAgent\Agent\.settings.json
          • Size 35KB
          • SHA256 ae935dbbd6df32feec085304500dc91014e1f004b57c620858d1b39ca74a5230
          • MD5 SHA1 SHA512 SSDEEP TLSH

          .settings.json

          • Path C:\Program Files\ATERA Networks\AteraAgent\Agent\.settings.json
          • Size 243B
          • SHA256 91090665629f8ee1d72b295d98168377a6503a1859b2ea3f71b75e7ac9ceea2c
          • MD5 SHA1 SHA512 TLSH

          AteraAgent.exe

          • Path C:\Program Files\ATERA Networks\AteraAgent\Agent\AteraAgent.exe
          • Size 22.5MB
          • SHA256 355936b7539fe07897dad6bca0490bade4940c7a9235b834c7a9a4cb7552d923
          • MD5 SHA1 SHA512 SSDEEP TLSH

          agent.cert.pfx

          • Path C:\Program Files\ATERA Networks\AteraAgent\Agent\certificates\production\agent.cert.pfx
          • Size 2KB
          • SHA256 f840a9086d0226e513fcbd31321e4d63dd999c60701a831be0e907825feba9ba
          • MD5 SHA1 SHA512 TLSH

          dotnet-install.ps1

          • Path C:\Program Files\ATERA Networks\AteraAgent\Agent\dotnet-install.ps1
          • Size 74KB
          • SHA256 e8b873e18a81e5c4cd8ab69d84dac8fead291d50b3c44633cd7fddad709a13d6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 1KB
          • SHA256 1585e6503cdb95cdf41d70d11f052ff234af239862bcc1fa9e0dbf7ca754db59
          • MD5 SHA1 SHA512 TLSH

          MSI1A7E.tmp

          • Path C:\Windows\Installer\MSI1A7E.tmp
          • Size 347KB
          • SHA256 06663991953e1d06759e4f8abd7633119cacf674a0bd508b46028217ba984b75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI3F03.tmp

          • Path C:\Windows\Installer\MSI3F03.tmp
          • Size 390KB
          • SHA256 7aacd4c18710e9bc4ff2034895a0a0c8f80f21809fb177d520e93f7688216e6d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Atera.Agent.Installer.Msi.Ca.dll

          • Path C:\Windows\Installer\SFXCA1BEA600F2D48B55B2501AF7D056F2321\Atera.Agent.Installer.Msi.Ca.dll
          • Size 75KB
          • SHA256 68aab5996b0970c4d100adaafd4d43473fa4bfdd85ac2233ce0a3bcfe67a0221
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Windows\Installer\SFXCA1BEA600F2D48B55B2501AF7D056F2321\CustomAction.config
          • Size 956B
          • SHA256 2dbc73a3bc444a9119c9b5e20276698384d9ad9535a8a7547c44d1b9a8d67346
          • MD5 SHA1 SHA512 TLSH

          WixToolset.Dtf.WindowsInstaller.dll

          • Path C:\Windows\Installer\SFXCA47005FC29F466BA9624264FCEAB09679\WixToolset.Dtf.WindowsInstaller.dll
          • Size 193KB
          • SHA256 a614884ea627da1925131ebf41e8ae202caeac0fe543b86384f5eb2bfaf1aa75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5a159e.msi

          • Path C:\Windows\Installer\e5a159e.msi
          • Size 8.7MB
          • SHA256 ab941aef3d30bd16a3d8b423eee0f434f45f949c71e93d212fc60f2366df9ba2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Tmp9898.tmp

          • Path C:\Windows\SystemTemp\Tmp9898.tmp
          • Size 3KB
          • SHA256 94739ca46676bd602a78671257fbfce39feaabc9664c6326bf4970a0108e3429
          • MD5 SHA1 SHA512 TLSH

          __PSScriptPolicyTest_xvhwizdj.twc.psm1

          • Path C:\Windows\SystemTemp\__PSScriptPolicyTest_xvhwizdj.twc.psm1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 ff52b8283ea211aaceddcf9e385b149fdadc8b00a6bd0863474b2da84d1ceac2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {f1dfaf7a-f614-4d3b-8d0e-6f9e4eff68f0}_OnDiskSnapshotProp

          • Path \??\Volume{e42a0d43-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{f1dfaf7a-f614-4d3b-8d0e-6f9e4eff68f0}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 371eb079d441e7126a972f3995144e4965a19739c96f00ede0e1f8f7f81f0739
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2808-122-0x000001D16DFA0000-0x000001D16E052000-memory.dmp

          memory/2808-125-0x000001D16E090000-0x000001D16E0B4000-memory.dmp

          memory/2808-127-0x000001D16DF90000-0x000001D16DF9A000-memory.dmp

          memory/2808-128-0x000001D16E0A0000-0x000001D16E0B2000-memory.dmp

          memory/2808-123-0x000001D16DF70000-0x000001D16DF7A000-memory.dmp

          memory/2808-121-0x000001D16DF80000-0x000001D16DF9E000-memory.dmp

          memory/2808-124-0x000001D16E090000-0x000001D16E0BA000-memory.dmp

          memory/3448-23-0x000002ACA5A80000-0x000002ACA5A98000-memory.dmp

          memory/3448-19-0x000002ACA5AC0000-0x000002ACA5AF4000-memory.dmp

          memory/5616-106-0x00000290420E0000-0x0000029042102000-memory.dmp

          memory/5624-45-0x000001853A5E0000-0x000001853A61C000-memory.dmp

          memory/5624-44-0x000001853A580000-0x000001853A592000-memory.dmp