Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    31/08/2026, 18:24

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260831-w2fr2aaa48
  • SHA256 bf0d3d4516db971a4bc44e7593282f68ce917432429602bd73e232b5e18e62a8
  • 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 13 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).

  • 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 14 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 9 IoCs
  • Suspicious use of SendNotifyMessage 7 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:3592
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\e148c120221cb3bd\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:3752
  • 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:4492
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 0D1E1D20246D3C304D4692F25D7E72AF C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1112
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2F1A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240660359 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1932
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI347A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240661656 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5080
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI3AD4.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240663250 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1824
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2940
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 8CEC3A5B0C8C301704B08486C611CE89
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4760
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding E004066913011EE1963060B2B9F1AA45 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1564
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1416
    • C:\Program Files (x86)\ScreenConnect Client (e148c120221cb3bd)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (e148c120221cb3bd)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-gaexoo-relay.screenconnect.com&p=443&s=e58a0c5f-10f8-432a-8284-c8b874e4a979&k=BgIAAACkAABSU0ExAAgAAAEAAQD1vupP7ld5xaocVToQXQko9tQ4B5%2bP2V82SD59SUp%2bg0jwzWepOCOBFHJA%2b6aRU155lSAS3bdrR8cZikpQugtX3sK1aVO4lRfP6mNKzwLipCLteNpFu%2b77VzLRbUX%2b8DiWe8TYCN2RlGwoDUMYz4ubhYktxqj0C%2b9YJhpU%2b5R1RDJa%2bN9XPZ2t3Q8SCMSeiKWPMzkPPyoI00O0AZvW59mZAynLB2MzbzuMKV1BZF%2fTmw4nvLAp6sooVU69fP7RtbaG5sApIu9iU8szm27HN6UWl3BySTViJTq7ugdTQdMwR%2baSZdUKy81tOrfvwPnQE5JUfQITF9TVyrpi61QTdJPD"
      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:4524
      • C:\Program Files (x86)\ScreenConnect Client (e148c120221cb3bd)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (e148c120221cb3bd)\ScreenConnect.WindowsClient.exe" "RunRole" "515f8132-5a35-44d4-a1d4-0631e2c3fb91" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4600
      • C:\Program Files (x86)\ScreenConnect Client (e148c120221cb3bd)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (e148c120221cb3bd)\ScreenConnect.WindowsClient.exe" "RunRole" "18fd88a8-dce2-4a7b-9ad8-ee96a532095b" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:3372

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e587e92.rbs

          • Path C:\Config.Msi\e587e92.rbs
          • Size 214KB
          • SHA256 f625063fc5cf79f93fd20d7c6da2281f08f336874eb5c2fb7ed1fd6036715165
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e148c120221cb3bd)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e148c120221cb3bd)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (e148c120221cb3bd)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e148c120221cb3bd)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e148c120221cb3bd)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e148c120221cb3bd)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e148c120221cb3bd)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (e148c120221cb3bd)\system.config
          • Size 964B
          • SHA256 aba1fef9716cc9aac000539048625279e69bac0f1d4ea74cd382797f40b553a0
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 265ef324db89c06ac091d8bb7aadaeea6cc756d0413692329271b1b76020786a
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 72ac54d028224131e4dd0d6f8c9b740722e592a134ac9cda7a32bc4b3f785996
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 069bac458ca38cc32ac45463bc1ead1e58ebf9770923f58e56152fc8282c0433
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 238c48e14c9d801388fe8f21ca843d268e11dd827cb1eb1416654fc33aa89b3c
          • 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

          MSI2F1A.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2F1A.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2F1A.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2F1A.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2F1A.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2F1A.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI347A.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI347A.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 dbf379b93127345a83282380aee634d0b70ec731acfeea76617c76e76fdc764f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\e148c120221cb3bd\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 0adb23796fbd9cbbe72cde60e5af6f62f3c96a39b13c6a178cf2222971722095
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI8086.tmp

          • Path C:\Windows\Installer\MSI8086.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          b2gcrrmg.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (e148c120221cb3bd)\b2gcrrmg.newcfg
          • Size 683B
          • SHA256 cb4896c4c55485bb9df228eb57f79f7043a6282c0373a1ccee631a4f255902b3
          • MD5 SHA1 SHA512 TLSH

          nmb2ekkz.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (e148c120221cb3bd)\nmb2ekkz.newcfg
          • Size 882B
          • SHA256 da1dd97e8d45f7e4acfbdf9dd6e8316e1e55dab7e29b5bc94c2928965a49bce8
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (e148c120221cb3bd)\user.config
          • Size 520B
          • SHA256 abf6438eb971f0f9eb51155ee3cf218b5d08943a95e0c4d677f86f0e70e63d36
          • MD5 SHA1 SHA512 TLSH

          vdtfje0x.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (e148c120221cb3bd)\vdtfje0x.newcfg
          • Size 882B
          • SHA256 54aa2100dbab920890ade2be5d053954ffb51a8d324d70e914c1295f6884aaa5
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 ce0da92838c1d7e1804ac36ec9b7232496e82b5b7313554b79d98f8ef48e70f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {a16dc5dd-44a4-4720-bd9b-388b9081163a}_OnDiskSnapshotProp

          • Path \??\Volume{20c84cf9-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{a16dc5dd-44a4-4720-bd9b-388b9081163a}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 bdb2ec88335141ee51ec4662979550060bc73d8eb93bd363e3a4fadb78cac3bc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1932-45-0x0000000004B40000-0x0000000004B4C000-memory.dmp

          memory/1932-41-0x0000000004B60000-0x0000000004B8E000-memory.dmp

          memory/1932-53-0x0000000004E80000-0x0000000005030000-memory.dmp

          memory/1932-49-0x0000000004C30000-0x0000000004CC4000-memory.dmp

          memory/3372-252-0x000000001AE80000-0x000000001AFCE000-memory.dmp

          memory/3592-4-0x0000000005810000-0x00000000058A4000-memory.dmp

          memory/3592-1-0x0000000001900000-0x0000000001908000-memory.dmp

          memory/3592-7-0x0000000006090000-0x0000000006634000-memory.dmp

          memory/3592-6-0x0000000005930000-0x0000000005AE0000-memory.dmp

          memory/3592-8-0x0000000005920000-0x0000000005930000-memory.dmp

          memory/3592-3-0x0000000001930000-0x000000000193C000-memory.dmp

          memory/3592-5-0x00000000058A0000-0x00000000058C8000-memory.dmp

          memory/3592-0-0x0000000005920000-0x0000000005930000-memory.dmp

          memory/3592-2-0x0000000005920000-0x0000000005930000-memory.dmp

          memory/4524-215-0x00000000040C0000-0x0000000004196000-memory.dmp

          memory/4524-211-0x0000000003EE0000-0x0000000003F72000-memory.dmp

          memory/4524-210-0x0000000003DD0000-0x0000000003E3C000-memory.dmp

          memory/4524-168-0x0000000001350000-0x000000000136A000-memory.dmp

          memory/4524-188-0x0000000003B50000-0x0000000003BA0000-memory.dmp

          memory/4524-213-0x0000000003D60000-0x0000000003DA1000-memory.dmp

          memory/4524-178-0x0000000003BB0000-0x0000000003D60000-memory.dmp

          memory/4524-174-0x0000000003960000-0x00000000039F4000-memory.dmp

          memory/4600-232-0x000000001BC40000-0x000000001BDF0000-memory.dmp

          memory/4600-230-0x000000001B650000-0x000000001B6BC000-memory.dmp

          memory/4600-231-0x000000001B9F0000-0x000000001BA84000-memory.dmp

          memory/4600-234-0x0000000001190000-0x00000000011AA000-memory.dmp

          memory/4600-235-0x000000001BF80000-0x000000001C106000-memory.dmp

          memory/4600-236-0x000000001B500000-0x000000001B64E000-memory.dmp

          memory/4600-217-0x0000000000920000-0x00000000009CE000-memory.dmp

          memory/4600-253-0x000000001B500000-0x000000001B64E000-memory.dmp

          memory/5080-85-0x0000000004C80000-0x0000000004CA8000-memory.dmp