Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    02/11/2026, 17:13

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample261102-vrhcfady7l
  • SHA256 fd29c0c8055e7924802396152c394192fc6f6b1a0a78a6727eb600a6ddf2ea75
  • 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.

  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops file in System32 directory 10 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 13 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 42 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 6 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 9 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 10 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\ScreenConnect.ClientSetup.exe
    "C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4320
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.7.6.9783\4a274c4b459d3342\ScreenConnect.ClientSetup.msi" SC_EXE_PATH="C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
      2⤵
      • Badlisted process makes network request
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:1740
  • 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:3328
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 222448BF10CD00FEC0A9A12FB527C9D1 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1596
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI138E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240718812 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2088
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI1813.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240719906 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • Reads the TCP/IP host and domain name from the registry
        • System Location Discovery: System Language Discovery
        PID:3432
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI1E6D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240721531 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3064
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2288
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 29BE044BDD4D3F6A5D76A7097D72027D
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4336
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding A7A056DA6606196D41246AEA16448FCE E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5064
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1556
    • C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-w2k9f7-relay.screenconnect.com&p=443&s=585225ba-edfd-4ec2-b03a-770fd0104039&k=BgIAAACkAABSU0ExAAgAAAEAAQBt7WlPK5kEXd9i5HijASi5sF7Wo1QEbu7dmhNPwEiMUWI0Aj%2fHzgBKSYxrmT8CJxDhZbVqsmzkULGDZVpeUhETzfuDHMlKqiSFMtlx6izTG7E7imYGHSUZHGyPsvC%2bj824Xw%2bLZNXCHioFDiTelBHnZU5f2IiaCluc2eWp8mFDkB0pNu%2bVceQ5J5rIkjifePtfUIOKFz2cQxKfZq%2fgv7ii%2bIaL%2fbsA0HJwVoKty9XVhdT9yMu8k4hX8F%2fth8w2Z1tjPSLcvfGq8IbpZOPXo%2bdv19yC5RCTIwoTdRDVvlm5ZLAoGHsXkM%2bq%2fexKGh9ef2yWXwsbtF1fJLLzTnKYI7S6&c=DDLSC&c=&c=&c=&c=&c=&c=&c="
      1⤵
      • Sets service image path in registry
      • Drops file in System32 directory
      • Executes dropped EXE
      • Loads dropped DLL
      • 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:4912
      • C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.WindowsClient.exe" "RunRole" "4c1eadeb-5026-41ed-9aa7-8fba0e116411" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1484
      • C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.WindowsClient.exe" "RunRole" "8fe0adb1-1090-4565-a537-b55c4d5c5275" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Reads the TCP/IP host and domain name from the registry
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:2848

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e595af8.rbs

          • Path C:\Config.Msi\e595af8.rbs
          • Size 214KB
          • SHA256 34d697d4787200c463fe521bf511825cfdf2780e13db62c22b9ae17a0c3dea6f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\Client.en-US.resources
          • Size 65KB
          • SHA256 bd8901dd3666277f6d7aa1f4118ad53f5d4229c5d9f67f94e635bf2add3731dd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.Client.dll
          • Size 413KB
          • SHA256 be1e3522a20c244b3e20b4f7bc2fc736b6103c930d6cf8366e0bb97cb82d5241
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 67f75a75bc19288cac0071e19e7af4463f2ecf4bb75fe13af80a4f0f57144253
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 bc19602c59b0ba4a7a99f791c87298df76d8d62f86a928e112dca285a88a5a77
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.Core.dll
          • Size 583KB
          • SHA256 91ae86fd5439c7d8a54b75cbb60c2ff9bdff84657b962d340d48cdf656c4928d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 9ddaf17f7f802e58c645d42184e0ac33dc755a885bc3637a7d837a4f6ae5fdea
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 89fd40ccc2e2be1bf140e748212922aa4010a7ef4b0465aca958c9d3417e0bdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (4a274c4b459d3342)\system.config
          • Size 966B
          • SHA256 624f3ca1906b0de092fbadbf0e5ab65bfa2b56bce5560f7df46cede9592e3191
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 32308105d00835c913e0e77ddfda1c4185f680a67e14a04c062a07f67a1b44c6
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 b28be5dc433c00b29a91f956203506c195c2827a3e815c4fc7c28256c7b02fe3
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 c59953263b1002a78806b59222a5769ba423d3636b41c4445986820f526d53a6
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 e773bc9ae67c9b4eb1c2dcf4b16c80928139174698188ad2fcc65f49e6efb40c
          • 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

          MSI138E.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI138E.tmp
          • Size 1.1MB
          • SHA256 d39e53d74c6840d331b91b9c949db26f7c93a824e9fb104c532346a8c465b6e2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI138E.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI138E.tmp-\ScreenConnect.Core.dll
          • Size 573KB
          • SHA256 399ab0c1bcf2bf0c7618066d676b6958c2a5f4fed2d8f769f0eeea5492720e4f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI138E.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 f35f007dcb154d0346745309630b8cc21fe49638e76dc8dd77a3c62cb0aa754a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI138E.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 4c281797c351fed77890634006a51bc3a6c60efa4c831fe21934353f304cdf61
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1813.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1813.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7fcba418fd772a38e420238d49e8301f23caf47eadcef400ecab8738813d9694
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.7.6.9783\4a274c4b459d3342\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 68c31d1a298eec1237bd7445a3eb7a02a22ed0ffa55e0b68f31f2837f1c69213
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI5D1B.tmp

          • Path C:\Windows\Installer\MSI5D1B.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          enusxca4.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (4a274c4b459d3342)\enusxca4.newcfg
          • Size 683B
          • SHA256 70af1fefa08c4b57ba4c70361bb2157d74e471a793dfa93d16f2697937543a9f
          • MD5 SHA1 SHA512 TLSH

          l1kwyn34.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (4a274c4b459d3342)\l1kwyn34.newcfg
          • Size 883B
          • SHA256 289ff42288ad8260c2a87e0cd3b1171a83ff1411f5b34856acf5f7461d4a9794
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (4a274c4b459d3342)\user.config
          • Size 520B
          • SHA256 b012e6211a834d80955b53b2192df8933fe511672475b487439d386bcab54b59
          • MD5 SHA1 SHA512 TLSH

          memory/1484-234-0x0000000001580000-0x000000000159A000-memory.dmp

          memory/1484-233-0x000000001BF60000-0x000000001C110000-memory.dmp

          memory/1484-232-0x000000001BD10000-0x000000001BDA6000-memory.dmp

          memory/1484-230-0x0000000000D10000-0x0000000000DC0000-memory.dmp

          memory/1484-231-0x000000001B900000-0x000000001B96C000-memory.dmp

          memory/1484-235-0x000000001D350000-0x000000001D4D6000-memory.dmp

          memory/2088-40-0x0000000004F10000-0x0000000004F3E000-memory.dmp

          memory/2088-48-0x0000000005040000-0x00000000050D6000-memory.dmp

          memory/2088-44-0x0000000004F50000-0x0000000004F5C000-memory.dmp

          memory/2088-52-0x0000000005290000-0x0000000005440000-memory.dmp

          memory/3432-84-0x0000000005160000-0x0000000005188000-memory.dmp

          memory/4320-3-0x0000000005D60000-0x0000000005D70000-memory.dmp

          memory/4320-1-0x0000000005C20000-0x0000000005C28000-memory.dmp

          memory/4320-5-0x0000000005D70000-0x0000000005E06000-memory.dmp

          memory/4320-0-0x0000000005D60000-0x0000000005D70000-memory.dmp

          memory/4320-9-0x0000000005D60000-0x0000000005D70000-memory.dmp

          memory/4320-8-0x0000000006560000-0x0000000006B04000-memory.dmp

          memory/4320-4-0x0000000005C40000-0x0000000005C4C000-memory.dmp

          memory/4320-7-0x0000000005E00000-0x0000000005FB0000-memory.dmp

          memory/4320-6-0x0000000005D20000-0x0000000005D48000-memory.dmp

          memory/4320-2-0x0000000005D60000-0x0000000005D70000-memory.dmp

          memory/4912-212-0x0000000004B70000-0x0000000004C46000-memory.dmp

          memory/4912-210-0x0000000004630000-0x0000000004671000-memory.dmp

          memory/4912-188-0x00000000045E0000-0x0000000004630000-memory.dmp

          memory/4912-175-0x0000000004740000-0x00000000048F0000-memory.dmp

          memory/4912-171-0x00000000044F0000-0x0000000004586000-memory.dmp

          memory/4912-208-0x0000000004990000-0x0000000004A22000-memory.dmp

          memory/4912-165-0x00000000043D0000-0x00000000043EA000-memory.dmp

          memory/4912-207-0x00000000046A0000-0x000000000470C000-memory.dmp