Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    03/02/2026, 17:36

General

  • Target
    RF_Architecture_doc2026.msi
  • Size 9.6MB
  • Sample260203-v6xexabs7d
  • SHA256 90dc5533765ff1b647d600ab23e17f9331ed5cdf6183039a67301b6541bb86de
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Sets service image path in registry 2 TTPs 1 IoCs
  • ConnectWise ScreenConnect remote access tool

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

  • Badlisted process makes network request 2 IoCs

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

  • 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
  • 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 16 IoCs
  • Drops file in Windows directory 17 IoCs
  • Executes dropped EXE 3 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.

  • 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\RF_Architecture_doc2026.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:3564
  • 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:5056
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 9DFB59B9E3D8F2AD454A2DBFC530EFE0 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3384
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIECE0.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240643453 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4936
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4828
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding B50D6D5F8431F016B349387E8CEB998A
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4692
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 2E0FF7BD8D9C7B42EFBF2BFBA3BB522B E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4024
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:664
    • C:\Program Files (x86)\ScreenConnect Client (f678be4059b0fe66)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (f678be4059b0fe66)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-bpqo99-relay.screenconnect.com&p=443&s=ec96f801-d1fe-459b-880a-68294841299d&k=BgIAAACkAABSU0ExAAgAAAEAAQBFaMYBL4LXoHV%2bYAskLA%2ftlvMKs6%2bX9vS%2fPMfPJW1ZKtyyiYInBCh6RJYcQZjbIPjbo%2b7WNNjYcn8DfEboc%2bZ7yopFmr7qXRayAUjVMMCbG7T3iyTVv%2bsiGkx5%2fR7pxiuk3kDYOe5j58tIWbV6Tp5atHSnha%2fFxJGAFaD9%2fvPOhjLf3m0aFMotrucZe%2bx5XJ1kKjTu6jYdMxRluXj94HWChowc95mPCbsWWlgKrtrKaoIBBDUaiUGBUFIZNNBm%2fnh7ZUAz6bBTJrYfSk21ZqaOEKUWOpKQMkVpoLi25Qj5XqBi6uKLQhIxK0KTwGyo1Aj8kWNbeFOIJHpupIq9ykWs"
      1⤵
      • Sets service image path in registry
      • Drops file in System32 directory
      • 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:2944
      • C:\Program Files (x86)\ScreenConnect Client (f678be4059b0fe66)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (f678be4059b0fe66)\ScreenConnect.WindowsClient.exe" "RunRole" "dd34e5b3-6fe8-4b59-a115-042327eeb49f" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4960
      • C:\Program Files (x86)\ScreenConnect Client (f678be4059b0fe66)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (f678be4059b0fe66)\ScreenConnect.WindowsClient.exe" "RunRole" "6afe9c1d-b383-44fb-95c3-4d266b91f60c" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:1188

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e5827a8.rbs

          • Path C:\Config.Msi\e5827a8.rbs
          • Size 214KB
          • SHA256 e5b6fd84b1e02f97c28d378c795a4a2d7766242808d72b5493142a3d00ce51cc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (f678be4059b0fe66)\Client.en-US.resources
          • Size 64KB
          • SHA256 efdb0b4fcc38b52cbf72336bd107a814db8454003f3495de21e2026a148823ea
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (f678be4059b0fe66)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (f678be4059b0fe66)\ScreenConnect.Client.dll
          • Size 399KB
          • SHA256 dbaffdb4d49e5dba309f54b1fc110c236042ac82ccde029b2917e189edaf84d3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (f678be4059b0fe66)\ScreenConnect.ClientService.dll
          • Size 78KB
          • SHA256 c8102fc3bda354653fc1c80b500de20d1a6bb274826334f76817f595434d2f0d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (f678be4059b0fe66)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a33c975b07fc9db4713b6584965dd88b143d61b99c4d699dd326374b82dcd271
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (f678be4059b0fe66)\ScreenConnect.Core.dll
          • Size 553KB
          • SHA256 a98c8a07c4b819afb60d4372b2b8428d08cdd93571acb02750c8a17287ca613b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (f678be4059b0fe66)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 416a10eb49239bc3aa1b32acfa31bb206a662ab9969043a7f5fe9d6455ebc07a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (f678be4059b0fe66)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (f678be4059b0fe66)\ScreenConnect.WindowsClient.exe
          • Size 604KB
          • SHA256 a5c8ede4d24165797dcfbabbb85f62c44a79b058381e68249bf418a01fc67a1d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (f678be4059b0fe66)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (f678be4059b0fe66)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 838KB
          • SHA256 7a94f9bc46ebc6285b6a9d2ee989357705707c7e03831ce22e6fae7d8d7b471c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (f678be4059b0fe66)\system.config
          • Size 968B
          • SHA256 10e48b7d513b89e33a9b18d12e1115a6c4bb1d11e112d19742836a00b1aac478
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_AE4B983DE066DC93BB134616BF886138

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_AE4B983DE066DC93BB134616BF886138
          • Size 727B
          • SHA256 be3452470026f99bf03786787745a4c57278afabd81dba12cc078f7a6c7e5cea
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_AE4B983DE066DC93BB134616BF886138

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_AE4B983DE066DC93BB134616BF886138
          • Size 408B
          • SHA256 2171ddbc3364204ae0399bcab2d650d3100e8d7efa82c962368b4ec0a9440e47
          • MD5 SHA1 SHA512 TLSH

          MSIECE0.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIECE0.tmp
          • Size 1.1MB
          • SHA256 80c78c9e4eca39bdefdc9d47b9a8b49dfcc3fe1c0f135338584c7e83702d539a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIECE0.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIECE0.tmp-\ScreenConnect.Core.dll
          • Size 543KB
          • SHA256 553ace16fbc4f84d8c66ca9a56797fffd527e61215aae4c09d79a55b7653a774
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIECE0.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 7071c7fa49e4b177126d58835d7df40ec0a18424d5c9110242d612fefb1974df
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIECE0.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 d7610baba5b37a3c52bc19aae6440e7631d1184a3934ebe64f836716b427490d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI29BC.tmp

          • Path C:\Windows\Installer\MSI29BC.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5827a7.msi

          • Path C:\Windows\Installer\e5827a7.msi
          • Size 9.6MB
          • SHA256 90dc5533765ff1b647d600ab23e17f9331ed5cdf6183039a67301b6541bb86de
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.6MB
          • SHA256 b49a39e1fca2b5539674c675d1fa92774470052618a99e7115faaca6c7455bf3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {d44164d2-afe6-427a-b17e-0e3314998884}_OnDiskSnapshotProp

          • Path \??\Volume{35b5ade9-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{d44164d2-afe6-427a-b17e-0e3314998884}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 cda64e0787b490f0c39c0a56336f83d837a425b1b91d7c5000dd07ccd9d14b28
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2944-112-0x0000000004540000-0x0000000004615000-memory.dmp

          memory/2944-107-0x00000000042E0000-0x0000000004348000-memory.dmp

          memory/2944-90-0x0000000004130000-0x00000000042DE000-memory.dmp

          memory/2944-108-0x0000000004350000-0x00000000043E2000-memory.dmp

          memory/2944-110-0x0000000004070000-0x00000000040B1000-memory.dmp

          memory/2944-80-0x0000000003CE0000-0x0000000003CF8000-memory.dmp

          memory/2944-103-0x0000000004020000-0x0000000004070000-memory.dmp

          memory/2944-86-0x0000000003EF0000-0x0000000003F7E000-memory.dmp

          memory/4936-36-0x00000000054F0000-0x0000000005A96000-memory.dmp

          memory/4936-35-0x0000000004D90000-0x0000000004F3E000-memory.dmp

          memory/4936-23-0x0000000004A50000-0x0000000004A7E000-memory.dmp

          memory/4936-27-0x0000000004A80000-0x0000000004A8A000-memory.dmp

          memory/4936-31-0x0000000004B20000-0x0000000004BAE000-memory.dmp

          memory/4960-122-0x000000001CF00000-0x000000001CF68000-memory.dmp

          memory/4960-123-0x000000001CF70000-0x000000001CFFE000-memory.dmp

          memory/4960-121-0x0000000000D30000-0x0000000000DCA000-memory.dmp

          memory/4960-124-0x000000001D4C0000-0x000000001D66E000-memory.dmp

          memory/4960-125-0x000000001E8B0000-0x000000001EA38000-memory.dmp

          memory/4960-127-0x0000000002EF0000-0x0000000002F08000-memory.dmp

          memory/4960-126-0x0000000002EB0000-0x0000000002EC8000-memory.dmp