Analysis

  • max time kernel
    148s
  • max time network
    144s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260911-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260911-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    24/09/2026, 14:44

General

  • Target
    setup_Z-_Mason_Street_Furniture_(Not_Supported_by_Group_IT).msi
  • Size 8.4MB
  • Sample260924-r4krjsfe22
  • SHA256 1571100ac7ed5c27e470225995828dd39e9760a6a03683ebf669658d15e0d18b
  • 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 6 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.

  • 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 36 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\setup_Z-_Mason_Street_Furniture_(Not_Supported_by_Group_IT).msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2096
  • 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:4648
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4460
      • C:\Windows\System32\MsiExec.exe
        C:\Windows\System32\MsiExec.exe -Embedding DCCFFD2157035794A62B504F7E2CBCB1
        2⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:572
        • C:\Windows\system32\rundll32.exe
          rundll32.exe "C:\Windows\Installer\MSI9FD5.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240689171 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:3164
        • C:\Windows\system32\rundll32.exe
          rundll32.exe "C:\Windows\Installer\MSIA14D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240689531 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 behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3212
        • C:\Windows\system32\rundll32.exe
          rundll32.exe "C:\Windows\Installer\MSIA797.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240691093 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
          • Suspicious use of AdjustPrivilegeToken
          PID:4780
        • C:\Windows\system32\rundll32.exe
          rundll32.exe "C:\Windows\Installer\MSIAB33.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240692062 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:5072
        • C:\Windows\system32\rundll32.exe
          rundll32.exe "C:\Windows\Installer\MSIF233.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240710203 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
          PID:3528
      • C:\Windows\System32\MsiExec.exe
        C:\Windows\System32\MsiExec.exe -Embedding B4D1C1CA5D3F85B6BD2E78B47EB5D3D3 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2224
        • C:\Program Files\ATERA Networks\AteraAgent\Agent\AteraAgent.exe
          "C:\Program Files\ATERA Networks\AteraAgent\Agent\AteraAgent.exe" init-settings --agent-id "4ec3c3a4-1839-433d-9e1b-7fc084dbe27b" --account-id "i3Ni+EOALl4FvwJcQroVhbrtT8HcJh6nP8Bf2147VP4=" --account-agent-installation-id "caf5a032c867462fbf577bc454480d04" --environment "Production" --customer-id "289" --folder-id ""
          3⤵
          • Executes dropped EXE
          • Drops file in Program Files directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3516
        • 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
          • Suspicious use of AdjustPrivilegeToken
          PID:1504
        • 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 8.0 -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
          • Suspicious use of AdjustPrivilegeToken
          PID:4904
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:2692
    • 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
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2480
      • 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:2408
        • 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:3400

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e589edc.rbs

          • Path C:\Config.Msi\e589edc.rbs
          • Size 7KB
          • SHA256 ac85e778fe8e411498df73e7bc2314e4304703cb598a0a9d581854c637b5e367
          • MD5 SHA1 SHA512 SSDEEP TLSH

          dotnet.exe

          • Path C:\Program Files\ATERA Networks\AteraAgent\Agent\.dotnet\dotnet.exe
          • Size 153KB
          • SHA256 111da7b604cd196b49167cfeecdaef4034b58cc7de71a91cbf9e162c9e8b0931
          • MD5 SHA1 SHA512 SSDEEP TLSH

          hostfxr.dll

          • Path C:\Program Files\ATERA Networks\AteraAgent\Agent\.dotnet\host\fxr\8.0.31\hostfxr.dll
          • Size 357KB
          • SHA256 4f5a0500cd2a2439b0d5edbf242950233aec4539ec9a5e7ba9b8a9b0079f63af
          • MD5 SHA1 SHA512 SSDEEP TLSH

          .settings.json

          • Path C:\Program Files\ATERA Networks\AteraAgent\Agent\.settings.json
          • Size 245B
          • SHA256 59482238fda7a7204ab248d2c6bebc6dd59ed36107fabe6a1dede3f1ca8a2851
          • MD5 SHA1 SHA512 TLSH

          AteraAgent.exe

          • Path C:\Program Files\ATERA Networks\AteraAgent\Agent\AteraAgent.exe
          • Size 21.7MB
          • SHA256 40be79204b749b4fffa22339c056b43ef3624ddc213183a2579ce88dc8e148bf
          • MD5 SHA1 SHA512 SSDEEP TLSH

          agent.cert.pfx

          • Path C:\Program Files\ATERA Networks\AteraAgent\Agent\certificates\production\agent.cert.pfx
          • Size 2KB
          • SHA256 26649036939826f554d651b3791cb67c1c485e08d3a5e9243aa2cfba31047114
          • 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

          698460A0B6E60F2F602361424D832905_8BB23D43DE574E82F2BEE0DF0EC47EEB

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\698460A0B6E60F2F602361424D832905_8BB23D43DE574E82F2BEE0DF0EC47EEB
          • Size 471B
          • SHA256 4181ff5096693f7ba0481c3851de5bb3e7c72129ab79d5ca7e86de8f4a3753b9
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_6FBFBE34ABAF2109B411B965FB39009E

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_6FBFBE34ABAF2109B411B965FB39009E
          • Size 727B
          • SHA256 498fd46879cc823632307d3cde6225f5c3594e62ec3b1254062f0504415002e7
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 5f59c273582d1f7461890515bcdfcd0306152ac82e7b5129e9212fde0518d275
          • MD5 SHA1 SHA512 TLSH

          698460A0B6E60F2F602361424D832905_8BB23D43DE574E82F2BEE0DF0EC47EEB

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\698460A0B6E60F2F602361424D832905_8BB23D43DE574E82F2BEE0DF0EC47EEB
          • Size 400B
          • SHA256 2bfa98870d15854e699385f8757e883a6d8411a5af0e41cda27078fa2f4e6198
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_6FBFBE34ABAF2109B411B965FB39009E

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_6FBFBE34ABAF2109B411B965FB39009E
          • Size 408B
          • SHA256 b94c889b28c3231a202aa9440b3a6df7b588fd8db0e09fe58df73e9aba54ab3f
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 14edc45528c6a951b1d1ace29a6e659a1904e3bf4b4b4c0a9493c1344563f3df
          • MD5 SHA1 SHA512 TLSH

          powershell.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
          • Size 2KB
          • SHA256 81fc6cfe81caf86f84e1285cb854082ac5e127335b5946da154a73f7aa9c2122
          • MD5 SHA1 SHA512 TLSH

          rundll32.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\rundll32.exe.log
          • Size 847B
          • SHA256 ec084a6c6ecd7d31f1927b0cd926ec03ce346a469f24e5a860e05f2241bd7bf4
          • MD5 SHA1 SHA512 TLSH

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 1KB
          • SHA256 fc6f46e4591eb772e8cbfba1c50d02e3670b444bd3e4802173d072e0bc3ac25e
          • MD5 SHA1 SHA512 TLSH

          __PSScriptPolicyTest_c5py45cb.tqo.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_c5py45cb.tqo.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH

          MSI9FD5.tmp

          • Path C:\Windows\Installer\MSI9FD5.tmp
          • Size 347KB
          • SHA256 ba404962848d74940adc5b600ac84ce99eacfc951fe6271031da896d306ad667
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIAD47.tmp

          • Path C:\Windows\Installer\MSIAD47.tmp
          • Size 390KB
          • SHA256 7aacd4c18710e9bc4ff2034895a0a0c8f80f21809fb177d520e93f7688216e6d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Windows\Installer\SFXCA2B38E8A1CF4E51C8E2A17F4D729CE716\CustomAction.config
          • Size 956B
          • SHA256 2dbc73a3bc444a9119c9b5e20276698384d9ad9535a8a7547c44d1b9a8d67346
          • MD5 SHA1 SHA512 TLSH

          WixToolset.Dtf.WindowsInstaller.dll

          • Path C:\Windows\Installer\SFXCA2B38E8A1CF4E51C8E2A17F4D729CE716\WixToolset.Dtf.WindowsInstaller.dll
          • Size 193KB
          • SHA256 a614884ea627da1925131ebf41e8ae202caeac0fe543b86384f5eb2bfaf1aa75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Atera.Agent.Installer.Msi.Ca.dll

          • Path C:\Windows\Installer\SFXCAA72334D1F5413F19ACF5E7E6B55CF184\Atera.Agent.Installer.Msi.Ca.dll
          • Size 74KB
          • SHA256 46e6ea528969185cb3e663d48d00899f558a09078a9bc2a98b8a9dcf8c04fb79
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e589edb.msi

          • Path C:\Windows\Installer\e589edb.msi
          • Size 8.4MB
          • SHA256 1571100ac7ed5c27e470225995828dd39e9760a6a03683ebf669658d15e0d18b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          TmpF5D5.tmp

          • Path C:\Windows\Temp\TmpF5D5.tmp
          • Size 3KB
          • SHA256 94739ca46676bd602a78671257fbfce39feaabc9664c6326bf4970a0108e3429
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.0MB
          • SHA256 f264cb677d46cb8a720cf71e1bdb2c69674b988fd8a774d3424eec130abd439e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {1848162b-bdff-4dbf-933d-ea78521ffd92}_OnDiskSnapshotProp

          • Path \??\Volume{4cb2ae72-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{1848162b-bdff-4dbf-933d-ea78521ffd92}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 3e04ed30daaddfa5cbcf737f0564d2f73bf71d6bb2b6c7549e27bebdd21000a9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1504-119-0x000001ED758B0000-0x000001ED758D2000-memory.dmp

          memory/3164-37-0x00000275592E0000-0x00000275592F8000-memory.dmp

          memory/3164-33-0x0000027559350000-0x0000027559384000-memory.dmp

          memory/3212-60-0x0000022AA32D0000-0x0000022AA330C000-memory.dmp

          memory/3212-59-0x0000022A8A010000-0x0000022A8A022000-memory.dmp

          memory/4904-151-0x000001C2EBA90000-0x000001C2EBAA2000-memory.dmp

          memory/4904-150-0x000001C2EBA60000-0x000001C2EBA6A000-memory.dmp

          memory/4904-145-0x000001C2EBA60000-0x000001C2EBA84000-memory.dmp

          memory/4904-144-0x000001C2EBA60000-0x000001C2EBA8A000-memory.dmp