Analysis

  • max time kernel
    149s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-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 13 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 8 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 31 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 33 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 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
    PID:1336
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4268
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:5080
    • C:\Windows\System32\MsiExec.exe
      C:\Windows\System32\MsiExec.exe -Embedding 94ABCF7434CE130334C7AF01E33238AA
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4580
      • C:\Windows\system32\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSIFE12.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240713343 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:4844
      • C:\Windows\system32\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSIFFA9.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240713703 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:4892
      • C:\Windows\system32\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSI15E2.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240719359 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:3032
      • C:\Windows\system32\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSI194F.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240720203 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:4292
      • C:\Windows\system32\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSI5AB1.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240736953 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:4600
    • C:\Windows\System32\MsiExec.exe
      C:\Windows\System32\MsiExec.exe -Embedding DBE4C132CE09EEA338AF089071672D33 E Global\MSI0000
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4772
      • C:\Program Files\ATERA Networks\AteraAgent\Agent\AteraAgent.exe
        "C:\Program Files\ATERA Networks\AteraAgent\Agent\AteraAgent.exe" init-settings --agent-id "725060dd-724f-4b13-b59b-09413a73969b" --account-id "5QGPL4zjAIBgQFnvTNs26FiJppYCq0WzQOH29bqUDyM=" --account-agent-installation-id "2fcd1ed7d8e54882ad9c55b32a2b7490" --environment "Production" --customer-id "1" --folder-id ""
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4852
      • 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
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        PID:4236
      • 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
        • System Time Discovery
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        PID:2444
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:4388
  • 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
    • Reads the TCP/IP host and domain name from the registry
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4852
    • 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:3876
      • 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:2424

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        e58fd67.rbs

        • Path C:\Config.Msi\e58fd67.rbs
        • Size 7KB
        • SHA256 8fcc4f2be6ac5f9377f81ece11e0ad9b9aa3d38270f2fa27b4c25eb714f2b4cd
        • 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 243B
        • SHA256 d54691d4c514b39d8c3e450b6313a8dcb1229290b38a593f77da35cadeb2699a
        • MD5 SHA1 SHA512 TLSH

        .settings.json

        • Path C:\Program Files\ATERA Networks\AteraAgent\Agent\.settings.json
        • Size 35KB
        • SHA256 3f1967f54c6db4eb0d0115338a8f632f1f114c51c274634602242968629bf701
        • MD5 SHA1 SHA512 SSDEEP 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 8cbadb16f8b4a1ecdc247ec50409a9f98ccad457fb318cb286a536acc80df93a
        • 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

        AgentPackageHeartbeat.zip

        • Path C:\Program Files\ATERA Networks\AteraAgent\Agent\packages\staging\AgentPackageHeartbeat.zip
        • Size 711KB
        • SHA256 e5c114edbdda488c5a0ca225db96a3548e8ddb89d89a52fb83e37e3a55f645ae
        • MD5 SHA1 SHA512 SSDEEP TLSH

        698460A0B6E60F2F602361424D832905_8BB23D43DE574E82F2BEE0DF0EC47EEB

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\698460A0B6E60F2F602361424D832905_8BB23D43DE574E82F2BEE0DF0EC47EEB
        • Size 471B
        • SHA256 7fa7c5749452bece2b7b3d5f0cae66dbf4de42dafebca2e1882d59ac93df0510
        • MD5 SHA1 SHA512 TLSH

        8EC9B1D0ABBD7F98B401D425828828CE_6FBFBE34ABAF2109B411B965FB39009E

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_6FBFBE34ABAF2109B411B965FB39009E
        • Size 727B
        • SHA256 842c698b8117c7e11f30f260288e839f73af4f586d3cfe289af2c330cf570dfb
        • MD5 SHA1 SHA512 TLSH

        C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
        • Size 727B
        • SHA256 bb02ff717d514309b00a0e83888658e919a0f576ef5784825de39335379eb6f3
        • MD5 SHA1 SHA512 TLSH

        698460A0B6E60F2F602361424D832905_8BB23D43DE574E82F2BEE0DF0EC47EEB

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\698460A0B6E60F2F602361424D832905_8BB23D43DE574E82F2BEE0DF0EC47EEB
        • Size 400B
        • SHA256 208287b396f5ac344254b5349488f2c129efbcb451a5e1e7ccfbc6ddb9df9ac0
        • MD5 SHA1 SHA512 TLSH

        8EC9B1D0ABBD7F98B401D425828828CE_6FBFBE34ABAF2109B411B965FB39009E

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_6FBFBE34ABAF2109B411B965FB39009E
        • Size 408B
        • SHA256 b58a9dd1f1f1b97602defe6ee0359bdc7961308f92ae6b94cc92b78d4ba15407
        • MD5 SHA1 SHA512 TLSH

        C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
        • Size 412B
        • SHA256 1508e88a8162e055e579d9a8476cbb3427fa1994af8c1c563d29439e9d9604e3
        • MD5 SHA1 SHA512 TLSH

        powershell.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
        • Size 2KB
        • SHA256 3b0068d29ae4b20c447227fbf410aa2deedfef6220ccc3f698f3c7707c032c55
        • MD5 SHA1 SHA512 TLSH

        rundll32.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\rundll32.exe.log
        • Size 847B
        • SHA256 f0ab05c32d6af3c2b559dbce4dec025ce3e730655a2430ade520e89a557cace8
        • MD5 SHA1 SHA512 TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 1KB
        • SHA256 28249014b107341f6e37fe4e0bf4d70db7a1b7ba4aa64ec13beeac5119e0deab
        • MD5 SHA1 SHA512 TLSH

        __PSScriptPolicyTest_5obv45nt.pgk.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5obv45nt.pgk.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        MSI1B53.tmp

        • Path C:\Windows\Installer\MSI1B53.tmp
        • Size 390KB
        • SHA256 7aacd4c18710e9bc4ff2034895a0a0c8f80f21809fb177d520e93f7688216e6d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MSIFE12.tmp

        • Path C:\Windows\Installer\MSIFE12.tmp
        • Size 347KB
        • SHA256 06663991953e1d06759e4f8abd7633119cacf674a0bd508b46028217ba984b75
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Atera.Agent.Installer.Msi.Ca.dll

        • Path C:\Windows\Installer\SFXCAB2528ACFA147DD499B4DA98F1065DBC2\Atera.Agent.Installer.Msi.Ca.dll
        • Size 75KB
        • SHA256 68aab5996b0970c4d100adaafd4d43473fa4bfdd85ac2233ce0a3bcfe67a0221
        • MD5 SHA1 SHA512 SSDEEP TLSH

        CustomAction.config

        • Path C:\Windows\Installer\SFXCAB2528ACFA147DD499B4DA98F1065DBC2\CustomAction.config
        • Size 956B
        • SHA256 2dbc73a3bc444a9119c9b5e20276698384d9ad9535a8a7547c44d1b9a8d67346
        • MD5 SHA1 SHA512 TLSH

        WixToolset.Dtf.WindowsInstaller.dll

        • Path C:\Windows\Installer\SFXCADF58B1941C42CDAA9DF7745A3541A706\WixToolset.Dtf.WindowsInstaller.dll
        • Size 193KB
        • SHA256 a614884ea627da1925131ebf41e8ae202caeac0fe543b86384f5eb2bfaf1aa75
        • MD5 SHA1 SHA512 SSDEEP TLSH

        e58fd68.msi

        • Path C:\Windows\Installer\e58fd68.msi
        • Size 8.7MB
        • SHA256 ab941aef3d30bd16a3d8b423eee0f434f45f949c71e93d212fc60f2366df9ba2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Tmp5C30.tmp

        • Path C:\Windows\Temp\Tmp5C30.tmp
        • Size 3KB
        • SHA256 94739ca46676bd602a78671257fbfce39feaabc9664c6326bf4970a0108e3429
        • MD5 SHA1 SHA512 TLSH

        metadata-2

        • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
        • Size 24.1MB
        • SHA256 79a4b08c93ba41f13123b2b224e0c8c4e085b35e65f21d77d1d82fc11845d08b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {71b55832-6b3b-4fb4-b010-52ac70977bf3}_OnDiskSnapshotProp

        • Path \??\Volume{c9561ee0-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{71b55832-6b3b-4fb4-b010-52ac70977bf3}_OnDiskSnapshotProp
        • Size 6KB
        • SHA256 53a91874b0bccebeccdcce514a5e318fa54a8165897c790919ffb7b87d2dad86
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2444-155-0x000002289C060000-0x000002289C06A000-memory.dmp

        memory/2444-156-0x000002289C090000-0x000002289C0A2000-memory.dmp

        memory/2444-153-0x000002289C060000-0x000002289C084000-memory.dmp

        memory/2444-152-0x000002289C060000-0x000002289C08A000-memory.dmp

        memory/4236-132-0x0000016B26B20000-0x0000016B26B42000-memory.dmp

        memory/4844-37-0x0000017E796D0000-0x0000017E796E8000-memory.dmp

        memory/4844-33-0x0000017E79BA0000-0x0000017E79BD4000-memory.dmp

        memory/4892-60-0x0000017AFA6A0000-0x0000017AFA6DC000-memory.dmp

        memory/4892-59-0x0000017AE1510000-0x0000017AE1522000-memory.dmp