Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    19/04/2026, 12:14

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.7MB
  • Sample260419-pd98eaex8t
  • SHA256 38e1ab2a0a1221bd7aa0c13e048892c7d2e136139781df413449744d1069be31
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 3 IoCs

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

  • 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.

  • 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 42 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 16 IoCs
  • Drops file in Windows directory 13 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • 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.

  • 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 9 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\ScreenConnect.ClientSetup.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:4784
  • 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:3888
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding B9504B5F9AFC15549FCB1BC5C35EBB31 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4900
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2A28.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240659250 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:6024
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2D94.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240659859 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5980
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI32D5.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240661203 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3476
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3364
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding ECCD2262C7E2752361A3B5E93CD905AD
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5884
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 2EA22FB37FDB74251F4FF990CC278A84 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:208
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4852
    • C:\Program Files (x86)\ScreenConnect Client (8629aa88d043b311)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (8629aa88d043b311)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-ylhn1j-relay.screenconnect.com&p=443&s=02db186e-c35d-4bd2-badc-b9c84fb61d57&k=BgIAAACkAABSU0ExAAgAAAEAAQBlagZRTQ8c2fYSucLzh40CKvBQp%2fgvTzRXA%2bj6Yzp4CWIok5V46S2PWU1HYPiGxo8mcjihpnxUdZye%2fN5kS9db8JN5keDw%2bLYaT%2b%2bv8y6E06WraHoq1LIAgJTPu4Y%2bYtOsYmRpxlaC1U5zl0jhUBFSpZ%2bGLWrteKH10CMXwSe9g23ptRRqa%2bJvp8SLenpYpeBgTsB1ZdB%2fpy0RMw%2bXU9FbidL%2blm%2ba1jWoK7vPpPka2v8pmQS%2fR2revXfCOFw3%2bn5af%2fbtj0fQHspgzXQkU4ZPflZI3NSmM4sTPImG7GDs%2bNvz6taWYvvLy2f32aH1J4vRPBN2y5UB8qp6ieEiZ4LU"
      1⤵
      • Sets service image path in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2024
      • C:\Program Files (x86)\ScreenConnect Client (8629aa88d043b311)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (8629aa88d043b311)\ScreenConnect.WindowsClient.exe" "RunRole" "5fa4e977-32c5-4024-8e8c-8b352378aeb5" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5092
      • C:\Program Files (x86)\ScreenConnect Client (8629aa88d043b311)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (8629aa88d043b311)\ScreenConnect.WindowsClient.exe" "RunRole" "62b8c30f-44c0-4a8e-b250-0c21218514a6" "System"
        2⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4132

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e586916.rbs

          • Path C:\Config.Msi\e586916.rbs
          • Size 214KB
          • SHA256 2a2569796f36e1eda45b8cff241a07bc783cffbe4e2c8d36f36f65e1a752d801
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (8629aa88d043b311)\Client.en-US.resources
          • Size 64KB
          • SHA256 efdb0b4fcc38b52cbf72336bd107a814db8454003f3495de21e2026a148823ea
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (8629aa88d043b311)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8629aa88d043b311)\ScreenConnect.Client.dll
          • Size 411KB
          • SHA256 28ff8468ad2db8b41fe9d9a2971dd56fea0aecad14808fe4b31c9b1072d3b129
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8629aa88d043b311)\ScreenConnect.ClientService.dll
          • Size 90KB
          • SHA256 9cf2c77df0a1a1e854ec1bbc6940d96f508bfb4b0555a07657c77314803a717e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (8629aa88d043b311)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 01341bd42426c3d110136cc94433df00dbad690a56593f7cca41a93f698f214a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8629aa88d043b311)\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 92e831159d5e9f2676241ab7ce80060a0b1dc34684f83797aec93b3ecff41139
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8629aa88d043b311)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 2292aac48ad575c6d1ed99c862e3408e254db34b8fea50cf3594aa08f3e875d0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8629aa88d043b311)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (8629aa88d043b311)\ScreenConnect.WindowsClient.exe
          • Size 665KB
          • SHA256 6e95d68102dc761942e67e2337ad8e49d32ee7c8943340489a01e2c56ea6e00b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8629aa88d043b311)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 838KB
          • SHA256 3fa1fe4a588015cc94eceb06867f16a5e562293139fbf6b36bde21dba478968d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (8629aa88d043b311)\system.config
          • Size 978B
          • SHA256 068c38976dffe4bfc4d5485184b9d0f33c7ebf9a0759ae4f542552b4b3ab3a2d
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 d2c44e0cbcc40cc390e6ace62ab487ed957ab578719fdb0c7103220d7448a7aa
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 15586243f5308e49e6ee76fd250b18ba11707d49a93f45e4fc15f6fcdab18f3d
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 d1b9f199f16ff6dd61ae8beefb73d0c7d93ae4ab973caf244d8fea3edd9c4336
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 50ef401c77ff7c9a2531af1ab5d17f9e7ffb61343f9822dfe77858b1f33587ef
          • MD5 SHA1 SHA512 TLSH

          rundll32.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\rundll32.exe.log
          • Size 746B
          • SHA256 ddebb6b1094dbef9e96754a74ebd4761d857864c9bd0b5f20a97259a6d7c8fe0
          • MD5 SHA1 SHA512 TLSH

          MSI2A28.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2A28.tmp
          • Size 1.1MB
          • SHA256 cd6bccce073b2a5205840ec31c91df0d443cc57c68756de2c03e21db8e3fc157
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2A28.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2A28.tmp-\ScreenConnect.Core.dll
          • Size 562KB
          • SHA256 c51a2b5cb5054ec0136e332bf290c8af3392d7936b5137a07423df08ab33d264
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2A28.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 432abf3a198ff64fb2c660eb06b2bb33a16cf69fd28d836cfcb65c43d37dc462
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2A28.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 10933424536d53e397f651915f862c933199c50722943c236b020787b2e8f147
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2D94.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2D94.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 528242c7745783b3b4ae72fec13bb9bd49b17b0e00f60c027351147f21fdd359
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI6A8D.tmp

          • Path C:\Windows\Installer\MSI6A8D.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e586915.msi

          • Path C:\Windows\Installer\e586915.msi
          • Size 9.7MB
          • SHA256 38e1ab2a0a1221bd7aa0c13e048892c7d2e136139781df413449744d1069be31
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2024-169-0x0000000004630000-0x00000000047E0000-memory.dmp

          memory/2024-178-0x0000000004540000-0x0000000004581000-memory.dmp

          memory/2024-159-0x0000000001D10000-0x0000000001D2A000-memory.dmp

          memory/2024-165-0x00000000043E0000-0x0000000004474000-memory.dmp

          memory/2024-180-0x0000000004A60000-0x0000000004B35000-memory.dmp

          memory/2024-171-0x00000000044F0000-0x0000000004540000-memory.dmp

          memory/2024-209-0x00000000042B0000-0x0000000004337000-memory.dmp

          memory/2024-175-0x00000000045B0000-0x000000000461A000-memory.dmp

          memory/2024-176-0x0000000004880000-0x0000000004912000-memory.dmp

          memory/3476-117-0x0000000000C90000-0x0000000000D17000-memory.dmp

          memory/4132-208-0x000000001BD50000-0x000000001BD80000-memory.dmp

          memory/4132-207-0x0000000001080000-0x00000000010B0000-memory.dmp

          memory/4784-194-0x00000223AFE50000-0x00000223AFE80000-memory.dmp

          memory/4784-118-0x00000223AFE50000-0x00000223AFE80000-memory.dmp

          memory/5092-202-0x000000001B440000-0x000000001B5F0000-memory.dmp

          memory/5092-204-0x0000000000A20000-0x0000000000A3A000-memory.dmp

          memory/5092-210-0x0000000000960000-0x0000000000990000-memory.dmp

          memory/5092-205-0x0000000002210000-0x000000000222A000-memory.dmp

          memory/5092-203-0x000000001B780000-0x000000001B906000-memory.dmp

          memory/5092-199-0x000000001AE10000-0x000000001AE7A000-memory.dmp

          memory/5092-197-0x0000000000180000-0x000000000022A000-memory.dmp

          memory/5092-201-0x000000001B1F0000-0x000000001B284000-memory.dmp

          memory/5980-75-0x00000000032B0000-0x00000000032D8000-memory.dmp

          memory/5980-84-0x0000000002C40000-0x0000000002CC7000-memory.dmp

          memory/6024-42-0x0000000005FC0000-0x0000000006564000-memory.dmp

          memory/6024-29-0x00000000054C0000-0x00000000054EE000-memory.dmp

          memory/6024-37-0x0000000005610000-0x00000000056A4000-memory.dmp

          memory/6024-41-0x0000000005860000-0x0000000005A10000-memory.dmp

          memory/6024-48-0x0000000001200000-0x0000000001287000-memory.dmp

          memory/6024-33-0x0000000005500000-0x000000000550C000-memory.dmp