Analysis

  • max time kernel
    149s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    30/07/2026, 15:07

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260730-shr46sbd82
  • SHA256 bff0385842e64ca428c40f892ffc6957cdcbc15de4f66a71e50099119d15dac3
  • 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).

  • 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:4896
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\e80e5803fa32ba10\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:3716
  • 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:2464
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding C4A73023DF2A015D99B3A6F82DC5DB93 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2008
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6637.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240674515 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5088
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6AEB.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240675765 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4880
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI7184.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240677343 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3800
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:228
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 7F94F806AA0AF986AF23135CC68019A8
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:456
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 239DC63741BF4028C33000AE02ADF53B E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4796
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1000
    • C:\Program Files (x86)\ScreenConnect Client (e80e5803fa32ba10)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (e80e5803fa32ba10)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-a749d3-relay.screenconnect.com&p=443&s=c7bf41c4-2dd4-475c-9a0d-d3fec3e70431&k=BgIAAACkAABSU0ExAAgAAAEAAQCdra668jUYpgdGRkcgJzo6hrIgDWy00yjnCowryISNcOQEgywBEpcmSOC7Rcnr4lgfcDHmVvbHUZA1pxPXtksCvpkz%2beWmb9DCkW%2fEgHcJWHa0mTi3PkOFZekaIvAPIYTTwPmK2z9wVKyH5BIrwQpmR0p%2f%2bwFWpHeTO575bVolSRKAPEXnZrx%2bYbCS6FJl6p9xD1c3I3xSKF%2bvxdd7fBfxR1KiCVWdjJ4bultH64VYVYRNbAOOUbq3iubIHzMbPgIWVmrOFqoYiZKlmcRyaVsSTawgZcIBwFL6QmMYq56pE9uv462NNqd8cMiqWKkcZJJ%2fpbxFDE3hj9AmrmtB6Q%2by&c=KiNs&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
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4448
      • C:\Program Files (x86)\ScreenConnect Client (e80e5803fa32ba10)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (e80e5803fa32ba10)\ScreenConnect.WindowsClient.exe" "RunRole" "54a34287-e4c1-4022-9537-260da7139e80" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4280
      • C:\Program Files (x86)\ScreenConnect Client (e80e5803fa32ba10)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (e80e5803fa32ba10)\ScreenConnect.WindowsClient.exe" "RunRole" "4888f76b-6690-4acf-bd3e-a64f94c6c760" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4704

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e58b85f.rbs

          • Path C:\Config.Msi\e58b85f.rbs
          • Size 214KB
          • SHA256 2eacec8b9a95af1a2b1594ce05cfc80854553ce3ca5aaf41cd120f1357c46d5b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e80e5803fa32ba10)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e80e5803fa32ba10)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (e80e5803fa32ba10)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e80e5803fa32ba10)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e80e5803fa32ba10)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e80e5803fa32ba10)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e80e5803fa32ba10)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (e80e5803fa32ba10)\system.config
          • Size 960B
          • SHA256 ff9a0a0ae39b2cb010dcfb25ac974fe23bb603ec1d05b9a2ec9299db3b16675e
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 e98a5c97185e873dee0e726b7c3912477af6ef321b55773df9566ea62691589e
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 a2e9b12f0ffcc945f012a85aab9f606f8851f1dbcd29be7cc2c7b97dccb98ea5
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 14eb34ca5a94e541b76fd9bfd8ecd4ebbdb8f3b470e5e5fe3e794c2513dea95b
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 dd4dac80621c70e28ecbaff56b3626507bf905caaa8fcb8f2670f800315e9a44
          • 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

          MSI6637.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6637.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6637.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6637.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6637.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6637.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6AEB.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6AEB.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\e80e5803fa32ba10\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 0a6eec8910350dee2e71edc821f7cd064013a9d724edbefd444a1a7ab036790e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIBAA1.tmp

          • Path C:\Windows\Installer\MSIBAA1.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ckabyeya.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (e80e5803fa32ba10)\ckabyeya.newcfg
          • Size 683B
          • SHA256 9d8f10f4bda264d0783cd89406c11df7055e42eb1980e8e7b5889482cb8e91f5
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (e80e5803fa32ba10)\user.config
          • Size 520B
          • SHA256 531e6466129e2883109d30e217d9150c2951d20ddd7af3811e7c84c7f849d17b
          • MD5 SHA1 SHA512 TLSH

          xyc4rdvx.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (e80e5803fa32ba10)\xyc4rdvx.newcfg
          • Size 882B
          • SHA256 c386b4a815a53fc4c48df7b92b47f1bcb23fb92a3257fa3380401a4260637270
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 16cff6818315d156948e3382bb7987137b88a9d9f258bd52a18e81ede02d5a44
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {e6ed666c-ce05-40c4-8a01-cf9b7efab801}_OnDiskSnapshotProp

          • Path \??\Volume{12d9ef41-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{e6ed666c-ce05-40c4-8a01-cf9b7efab801}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 4fa919f145d6d79bc0442ce75b6c23bc44f14ec8e28cbf6dcaba4084e996f8b0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/4280-234-0x000000001C770000-0x000000001C8F6000-memory.dmp

          memory/4280-233-0x0000000002380000-0x000000000239A000-memory.dmp

          memory/4280-232-0x000000001B380000-0x000000001B530000-memory.dmp

          memory/4280-218-0x000000001B130000-0x000000001B1C4000-memory.dmp

          memory/4280-216-0x0000000000130000-0x00000000001DE000-memory.dmp

          memory/4280-217-0x000000001ACF0000-0x000000001AD5C000-memory.dmp

          memory/4448-167-0x0000000003940000-0x000000000395A000-memory.dmp

          memory/4448-214-0x00000000040A0000-0x0000000004176000-memory.dmp

          memory/4448-177-0x0000000003C70000-0x0000000003E20000-memory.dmp

          memory/4448-173-0x0000000003A20000-0x0000000003AB4000-memory.dmp

          memory/4448-210-0x0000000003EC0000-0x0000000003F52000-memory.dmp

          memory/4448-190-0x0000000003B40000-0x0000000003B90000-memory.dmp

          memory/4448-212-0x0000000003B90000-0x0000000003BD1000-memory.dmp

          memory/4448-209-0x0000000003C00000-0x0000000003C6C000-memory.dmp

          memory/4880-84-0x00000000049B0000-0x00000000049D8000-memory.dmp

          memory/4896-4-0x00000000034B0000-0x00000000034BC000-memory.dmp

          memory/4896-1-0x0000000001BE0000-0x0000000001BE8000-memory.dmp

          memory/4896-5-0x0000000005AC0000-0x0000000005B54000-memory.dmp

          memory/4896-6-0x0000000005A80000-0x0000000005AA8000-memory.dmp

          memory/4896-2-0x0000000005AB0000-0x0000000005AC0000-memory.dmp

          memory/4896-7-0x0000000005B50000-0x0000000005D00000-memory.dmp

          memory/4896-3-0x0000000005AB0000-0x0000000005AC0000-memory.dmp

          memory/4896-8-0x00000000062C0000-0x0000000006864000-memory.dmp

          memory/4896-9-0x0000000005AB0000-0x0000000005AC0000-memory.dmp

          memory/4896-0-0x0000000005AB0000-0x0000000005AC0000-memory.dmp

          memory/5088-40-0x0000000002460000-0x000000000248E000-memory.dmp

          memory/5088-44-0x00000000024A0000-0x00000000024AC000-memory.dmp

          memory/5088-48-0x00000000048D0000-0x0000000004964000-memory.dmp

          memory/5088-52-0x0000000004B20000-0x0000000004CD0000-memory.dmp