Analysis

  • max time kernel
    149s
  • max time network
    149s
  • 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, 01:15

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260730-bmbvbazvbs
  • SHA256 4fec33e2544b3a74bf45ec01d43831a6f27c0e6c5e87c0de24b61ff29e5056b5
  • 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:3816
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\fa50129702da8491\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:3624
  • 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:3096
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding DC1DCA76CCD9332E151457A52EC8EEB1 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:908
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIC40.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240651437 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3696
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI1180.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240652671 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1492
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI16F0.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240654062 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3388
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4256
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding A6B6D66486F44E055A08CF66A8637412
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4076
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 7A3288E56F9E83610D03C2084FD46C0A E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2696
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3812
    • C:\Program Files (x86)\ScreenConnect Client (fa50129702da8491)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (fa50129702da8491)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-kwimgq-relay.screenconnect.com&p=443&s=c4b5f202-99ef-4c0d-b4f9-39339b23f1ad&k=BgIAAACkAABSU0ExAAgAAAEAAQC5yMpOmLknsSKCE5bB2e0AAK8YG3ysQ07jehjHsVZRRSck1%2fM1DwBE9%2bYzoiIOT0eDDenz76%2fO6Y6pCi0uwJ350DJHrH8CEY9Jx1u505caF%2fKIURF1lhq3tDyEuK%2f87U52mO0ZyEC7rKdLkmgWGv%2bvZkqivLTcl0zOsFfMp35bN%2fJ6OV7Aqzmggz8pxUjEuc%2bFSwmhM%2bL4H%2fCyxviSNn9BCDKDFgdRsEviS0iDWTN3cEtzYNUpo99m%2bHO6qidjRZrPy%2fn1y1BoIqD8cpqJuwxDbZ5dyfzm6YbvMB4FimBaLX%2bVhfVAQN4GyHGq%2bNZUVSD%2b6qyrGlySnMb7cKeRaqvK"
      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:3428
      • C:\Program Files (x86)\ScreenConnect Client (fa50129702da8491)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (fa50129702da8491)\ScreenConnect.WindowsClient.exe" "RunRole" "68fa7e55-2ac4-489d-8f7d-be39f916ca2e" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4548
      • C:\Program Files (x86)\ScreenConnect Client (fa50129702da8491)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (fa50129702da8491)\ScreenConnect.WindowsClient.exe" "RunRole" "3bb22b65-4036-4191-9926-4a14324261bf" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:1120

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e58588c.rbs

          • Path C:\Config.Msi\e58588c.rbs
          • Size 214KB
          • SHA256 b55af1fc8c02194ef6741d16aaf261ce891ba51244bc4925d9f117702e1f54eb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (fa50129702da8491)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (fa50129702da8491)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fa50129702da8491)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fa50129702da8491)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (fa50129702da8491)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fa50129702da8491)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fa50129702da8491)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fa50129702da8491)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (fa50129702da8491)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (fa50129702da8491)\system.config
          • Size 974B
          • SHA256 17fac804bad43cc634bc1d8f9059a80e918592800eb2555afc1fa988fae3d3f5
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 c0abe7a713c0a35f2b5085cfb1f2234156a63d5e3370be8abf6e3094d97c9c16
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 a979724fe78a75e9ebd04b45951bedf4560a843e90fe02283b2da2d01c3c6f11
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 95288f000d3ad26165a188dd58803220d7d1889b4bcc119f39a574882813b228
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 bc1526e6192859859979a3636e97f65cd282f2edbb9bdc301e160d7a90e120e4
          • 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

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1180.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1180.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIC40.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC40.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC40.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC40.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC40.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC40.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\fa50129702da8491\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 bdd78bf2a21a9722b1a64cf2a0f4cfd4880de75633d59b58ecaf045a528fca23
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI5A70.tmp

          • Path C:\Windows\Installer\MSI5A70.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          2w5lu1h0.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (fa50129702da8491)\2w5lu1h0.newcfg
          • Size 883B
          • SHA256 7499220a31b3551335804be5f001b2d1e734ee84d6c79599498f2d16e166d347
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (fa50129702da8491)\user.config
          • Size 520B
          • SHA256 bce4a209ca1f4692b83a4ddedf542262878064aca778389d8a005918f47d7174
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (fa50129702da8491)\user.config
          • Size 683B
          • SHA256 47457d39fb1379885aed76015fc792161e12645dbce98a259a4c5915f60982de
          • MD5 SHA1 SHA512 TLSH

          memory/1120-232-0x0000000002A50000-0x0000000002A91000-memory.dmp

          memory/1492-83-0x0000000005170000-0x0000000005198000-memory.dmp

          memory/3428-196-0x0000000004690000-0x0000000004722000-memory.dmp

          memory/3428-198-0x00000000043B0000-0x00000000043F1000-memory.dmp

          memory/3428-174-0x0000000004470000-0x0000000004620000-memory.dmp

          memory/3428-170-0x0000000004220000-0x00000000042B4000-memory.dmp

          memory/3428-176-0x0000000004360000-0x00000000043B0000-memory.dmp

          memory/3428-193-0x0000000004620000-0x000000000468C000-memory.dmp

          memory/3428-200-0x0000000004870000-0x0000000004946000-memory.dmp

          memory/3428-164-0x0000000004160000-0x000000000417A000-memory.dmp

          memory/3696-51-0x0000000004E10000-0x0000000004FC0000-memory.dmp

          memory/3696-47-0x0000000004BC0000-0x0000000004C54000-memory.dmp

          memory/3696-43-0x0000000002710000-0x000000000271C000-memory.dmp

          memory/3696-39-0x00000000026D0000-0x00000000026FE000-memory.dmp

          memory/3816-7-0x0000000006340000-0x00000000068E4000-memory.dmp

          memory/3816-2-0x0000000005B10000-0x0000000005B20000-memory.dmp

          memory/3816-8-0x0000000005B10000-0x0000000005B20000-memory.dmp

          memory/3816-6-0x0000000005BE0000-0x0000000005D90000-memory.dmp

          memory/3816-5-0x0000000005BB0000-0x0000000005BD8000-memory.dmp

          memory/3816-4-0x0000000005B20000-0x0000000005BB4000-memory.dmp

          memory/3816-3-0x00000000034D0000-0x00000000034DC000-memory.dmp

          memory/3816-0-0x0000000005B10000-0x0000000005B20000-memory.dmp

          memory/3816-1-0x00000000034B0000-0x00000000034B8000-memory.dmp

          memory/4548-227-0x0000000002620000-0x000000000268C000-memory.dmp

          memory/4548-228-0x000000001B5F0000-0x000000001B684000-memory.dmp

          memory/4548-229-0x000000001B840000-0x000000001B9F0000-memory.dmp

          memory/4548-230-0x0000000000DD0000-0x0000000000DEA000-memory.dmp

          memory/4548-231-0x000000001CC30000-0x000000001CDB6000-memory.dmp

          memory/4548-226-0x0000000000570000-0x000000000061E000-memory.dmp