Analysis

  • max time kernel
    149s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    22/08/2026, 18:13

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 13.9MB
  • Sample260822-wt38csswfz
  • SHA256 9a6a2a3a88cde3da3256143d6094219a252adae010ad19886119a4fd82a663bc
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 5 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 10 IoCs
  • Drops file in Program Files directory 18 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:5080
  • 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:3944
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 93DE53C804E906E0CCB1A885D649854A C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:880
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2CB8.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240659937 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1680
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI31BA.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240660921 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:556
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2A64.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240724593 19 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1536
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3880
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 9E00DF69E44E9559B293CCCDA543CD9F
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3384
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 3A37630D8D88DA0A3A99F8418060F2AE E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:1644
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3308
    • C:\Program Files (x86)\ScreenConnect Client (a25d630ec868238a)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (a25d630ec868238a)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-coavq0-relay.screenconnect.com&p=443&s=0a01ee9c-1ce1-4ea7-bf84-7a14c9aac0a3&k=BgIAAACkAABSU0ExAAgAAAEAAQCBO9tPvg5qPurW6qEvp9bUmW9mYzEm7o6yAFHTWSiFpJUPxyd86wxZabgPwagG7A6%2fXKMmY0E1n%2boZQO9a7xuH9q5G2JGTdmiFAM0w%2f7km1A%2b2nB6dNxYxc77fGCOp2OMgPv%2bFuFtWrvzeCyA7RzqeBVPJtzohXZk7kmhY2I01AwWEzFkHCexhIxD9AVRLThFZhImG%2bylaxX9ORTvzfvFaTxVCRnMte9pCKtjtTTw8M6jMBV17r4SXYpS0KUpcksBoo%2bozl1Jcq3eOEh34SUskDA29Qxg%2fF%2fBjBkLmO%2b99bBzOP0S1dWcjhJSaB7nffgZS951U4%2fC1FlYivi4oU2vh&c=Eye%20Clinic&c=&c=Surgery&c=Personal&c=&c=&c=&c="
      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:4872
      • C:\Program Files (x86)\ScreenConnect Client (a25d630ec868238a)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (a25d630ec868238a)\ScreenConnect.WindowsClient.exe" "RunRole" "8eaa7f84-7489-456c-af9b-b829299e616a" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4156
      • C:\Program Files (x86)\ScreenConnect Client (a25d630ec868238a)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (a25d630ec868238a)\ScreenConnect.WindowsClient.exe" "RunRole" "e12a58ba-3c67-475b-87c7-59cf6707f0e7" "System"
        2⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:1740

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59745c.rbs

          • Path C:\Config.Msi\e59745c.rbs
          • Size 214KB
          • SHA256 959530a05f59b1f7004b0aed2c8038b234de615fd699c29b0ad1028522e35cba
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (a25d630ec868238a)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a25d630ec868238a)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a25d630ec868238a)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (a25d630ec868238a)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a25d630ec868238a)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a25d630ec868238a)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a25d630ec868238a)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a25d630ec868238a)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (a25d630ec868238a)\app.config
          • Size 1KB
          • SHA256 153a4b7722eae4a903301c18977dc8a803ca2c28464a0a25adba687c62f194d7
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (a25d630ec868238a)\system.config
          • Size 966B
          • SHA256 ed4ff0cac6b33b29810e91bc1cc07f41c37f5ec7eae787f70d9237477dbb8412
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 3f8b03928fc0466a33e23e3d0735ea361c078aec60cd03748ccd716ffb96fd45
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 f12ceda10b292e29d248ed22ddfad3525216eb0d984731b590f00a88111db2e5
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 c402b5dd62634f8889a87de1d5c9524e7c4232f3484fbf3f7d847a3fa612be9d
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 5b35e49cc42f758e168d8c323615a19187144fe7122ea63df042b91fd6942d55
          • 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

          MSI2CB8.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2CB8.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2CB8.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2CB8.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2CB8.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2CB8.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI31BA.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI31BA.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI7660.tmp

          • Path C:\Windows\Installer\MSI7660.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e59745b.msi

          • Path C:\Windows\Installer\e59745b.msi
          • Size 13.9MB
          • SHA256 9a6a2a3a88cde3da3256143d6094219a252adae010ad19886119a4fd82a663bc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          jqgyugmo.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a25d630ec868238a)\jqgyugmo.newcfg
          • Size 883B
          • SHA256 251b4578ad2502e78311aaf5bb2b702d893b501845777de96b3c4917c09ed529
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a25d630ec868238a)\user.config
          • Size 520B
          • SHA256 5750f2579c122d27f36df6c418ee0a4904ab2bd0116b3c9686d06f395f07fafc
          • MD5 SHA1 SHA512 TLSH

          wphshzgm.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (a25d630ec868238a)\wphshzgm.newcfg
          • Size 683B
          • SHA256 5e2081e2dcac13454949600b9199b5715d8024413b656207e1a74e0cd2c52c79
          • MD5 SHA1 SHA512 TLSH

          memory/556-74-0x00000000029C0000-0x00000000029E8000-memory.dmp

          memory/1680-29-0x00000000027E0000-0x000000000280E000-memory.dmp

          memory/1680-37-0x0000000004C50000-0x0000000004CE4000-memory.dmp

          memory/1680-42-0x0000000005600000-0x0000000005BA4000-memory.dmp

          memory/1680-41-0x0000000004EA0000-0x0000000005050000-memory.dmp

          memory/1680-33-0x0000000002820000-0x000000000282C000-memory.dmp

          memory/1740-229-0x000000001B900000-0x000000001B941000-memory.dmp

          memory/4156-221-0x00000000004A0000-0x000000000054E000-memory.dmp

          memory/4156-222-0x0000000000D60000-0x0000000000DCC000-memory.dmp

          memory/4156-223-0x000000001B470000-0x000000001B504000-memory.dmp

          memory/4156-226-0x0000000000D10000-0x0000000000D2A000-memory.dmp

          memory/4156-224-0x000000001B6C0000-0x000000001B870000-memory.dmp

          memory/4156-227-0x000000001BA00000-0x000000001BB86000-memory.dmp

          memory/4156-228-0x0000000002680000-0x00000000026C1000-memory.dmp

          memory/4872-168-0x00000000047F0000-0x00000000049A0000-memory.dmp

          memory/4872-204-0x00000000046C0000-0x0000000004701000-memory.dmp

          memory/4872-206-0x0000000004BF0000-0x0000000004CC6000-memory.dmp

          memory/4872-202-0x0000000004A10000-0x0000000004AA2000-memory.dmp

          memory/4872-201-0x00000000049A0000-0x0000000004A0C000-memory.dmp

          memory/4872-171-0x0000000004700000-0x0000000004750000-memory.dmp

          memory/4872-164-0x00000000045A0000-0x0000000004634000-memory.dmp

          memory/4872-158-0x0000000001F60000-0x0000000001F7A000-memory.dmp