Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    04/08/2026, 18:17

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260804-wxbmhsvsd1
  • SHA256 fdb6b497b2a941c8cb1de3539a766e812d9676288a6668f90b140794cd4425e0
  • 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.

  • 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 16 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 11 IoCs
  • Suspicious use of SendNotifyMessage 9 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:628
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\35e6c255fc70e6b5\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:4492
  • 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:4288
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 004B9744883A7AEB3A99C975AFDA115B C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1236
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9AC4.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240687906 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2476
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9FC6.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240689109 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5004
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIA5B3.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240690656 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3356
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1972
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 0C85DF161DF1BEA71CB3630A5C8F7080
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5028
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 3BBA1791DBB575876C90DDB6234A8125 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1712
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2412
    • C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-fysxmg-relay.screenconnect.com&p=443&s=2356d93c-7067-4ccb-87a4-3c978cb5fcb6&k=BgIAAACkAABSU0ExAAgAAAEAAQBJ5EzMYEr%2fwCk6aKuRr%2bKaG9lfZ4WXrNDtv55MDzprRTLTfzTpVc3mWSC1QXfhIdWNRVgKUm%2fFSyuomHpvzwzCjaMt6ehoLsLJIaNnyo6L8rApjCAu87PeMHq5IUBOWte3ZaYtvgbp3mzNCp3TyfaNWVBHBc9ty24d26PQt709nVlfxW8SeJyIzST%2fZ2%2fQzqPSUA9mE0u2zdnc9wmCzlyVfJimR6WDIc9boA7GQDt0pyp9ovTJKFBslvO1EFYq4MdmEv%2fBbxlhwwFR%2bECzXD%2fT9sVoQn03gFeXWZBLnd7FMg2ZjiKmHdKNCbAxWb99jXtmuMgdrD0nqA3XVGWX9bTD"
      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:2472
      • C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.WindowsClient.exe" "RunRole" "ab5b3bb8-f872-4eaf-a4bd-fea9585a4de4" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4724
      • C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.WindowsClient.exe" "RunRole" "41eba061-048a-4b5b-ae49-1f6aa96cedbf" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:3952

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e58efda.rbs

          • Path C:\Config.Msi\e58efda.rbs
          • Size 214KB
          • SHA256 9e627afc280bf8d283fc5f16a4f75fef91184dd94e8fa7feb9935c1c2a16ff79
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\system.config
          • Size 960B
          • SHA256 113211775b09c367cc91cfa82021358401f128edbb3599ccb9a17f4d66fe95e8
          • MD5 SHA1 SHA512 TLSH

          1A374813EDB1A6631387E414D3E73232

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\1A374813EDB1A6631387E414D3E73232
          • Size 175KB
          • SHA256 042c66c071583ee9c457535e025521a00c4032ae70fb8198681b22fd15efc59b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          BA74182F76F15A9CF514DEF352303C95

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\BA74182F76F15A9CF514DEF352303C95
          • Size 737B
          • SHA256 8e1136ed51666cc5b9f9b98847c67ce35ff60a6a54cf9a5734dc1e8defd26aa7
          • MD5 SHA1 SHA512 TLSH

          1A374813EDB1A6631387E414D3E73232

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\1A374813EDB1A6631387E414D3E73232
          • Size 306B
          • SHA256 ec377589e38e58fcc4cd2220e92007ef1230142b3fab8a0b76ee6ef0966a9f69
          • MD5 SHA1 SHA512 TLSH

          BA74182F76F15A9CF514DEF352303C95

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\BA74182F76F15A9CF514DEF352303C95
          • Size 248B
          • SHA256 55ddb4f5e26a20676847a43f80dc4d5e16b6e10438f59763ec492a90eada1ca3
          • 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

          MSI9AC4.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9AC4.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9AC4.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9AC4.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9AC4.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9AC4.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9FC6.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9FC6.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\35e6c255fc70e6b5\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 51c196c397a5c4cf1e8002a986069935cb6cf2a01a0d0fe039ccc7bb9dd21f3d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIF22C.tmp

          • Path C:\Windows\Installer\MSIF22C.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          1rm2im2z.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (35e6c255fc70e6b5)\1rm2im2z.newcfg
          • Size 878B
          • SHA256 9964ef58e81f7621d617fbbf025258732069755b1d0523a82125b980b398d051
          • MD5 SHA1 SHA512 TLSH

          5wzbxho3.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (35e6c255fc70e6b5)\5wzbxho3.newcfg
          • Size 878B
          • SHA256 3ddac5ed7c9fea72061b15c7ac09b49903223a3c1e7524b0f050a63a44b0ad8f
          • MD5 SHA1 SHA512 TLSH

          a3cdui0p.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (35e6c255fc70e6b5)\a3cdui0p.newcfg
          • Size 878B
          • SHA256 ca709ab3f3f1e1883f54fafe03d108448c093a3df478f96136f9c35982897449
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (35e6c255fc70e6b5)\user.config
          • Size 520B
          • SHA256 5c1580e7e4e230f32e8a95cddc53cce59b3fc952b80049fd19b4d93b82444676
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (35e6c255fc70e6b5)\user.config
          • Size 683B
          • SHA256 9ef4fbc809dbad133861d6f65b2c04831b134ef11a5c817b99ccae61e3ba1d64
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 3b313a6dba90015cbd55de1349d7280432ed4f1f61440f35fb80b850ed7c1833
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {9976d7f0-660e-4599-a1ff-413a2883b8b9}_OnDiskSnapshotProp

          • Path \??\Volume{d78106ee-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{9976d7f0-660e-4599-a1ff-413a2883b8b9}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 1ac442212601738cfe7d31e3958c6eabc6a365d11b0a35aaec790497d66c30dd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/628-7-0x0000000006610000-0x0000000006BB4000-memory.dmp

          memory/628-1-0x0000000001EE0000-0x0000000001EE8000-memory.dmp

          memory/628-2-0x0000000003720000-0x0000000003730000-memory.dmp

          memory/628-3-0x0000000003700000-0x000000000370C000-memory.dmp

          memory/628-4-0x0000000005DD0000-0x0000000005E64000-memory.dmp

          memory/628-5-0x0000000005E70000-0x0000000005E98000-memory.dmp

          memory/628-0-0x0000000003720000-0x0000000003730000-memory.dmp

          memory/628-6-0x0000000005EA0000-0x0000000006050000-memory.dmp

          memory/628-8-0x0000000003720000-0x0000000003730000-memory.dmp

          memory/2472-206-0x0000000003C00000-0x0000000003C6C000-memory.dmp

          memory/2472-207-0x0000000003EF0000-0x0000000003F82000-memory.dmp

          memory/2472-166-0x0000000003940000-0x000000000395A000-memory.dmp

          memory/2472-176-0x0000000003CA0000-0x0000000003E50000-memory.dmp

          memory/2472-189-0x0000000003B40000-0x0000000003B90000-memory.dmp

          memory/2472-209-0x0000000003B90000-0x0000000003BD1000-memory.dmp

          memory/2472-211-0x00000000040D0000-0x00000000041A6000-memory.dmp

          memory/2472-172-0x0000000003A50000-0x0000000003AE4000-memory.dmp

          memory/2476-47-0x0000000004D20000-0x0000000004DB4000-memory.dmp

          memory/2476-43-0x0000000004C70000-0x0000000004C7C000-memory.dmp

          memory/2476-51-0x0000000004F70000-0x0000000005120000-memory.dmp

          memory/2476-39-0x0000000004C30000-0x0000000004C5E000-memory.dmp

          memory/3952-261-0x0000000000A40000-0x0000000000A81000-memory.dmp

          memory/4724-226-0x0000000002ED0000-0x0000000002F3C000-memory.dmp

          memory/4724-225-0x0000000000D50000-0x0000000000DFE000-memory.dmp

          memory/4724-227-0x000000001BCE0000-0x000000001BD74000-memory.dmp

          memory/4724-229-0x000000001BF30000-0x000000001C0E0000-memory.dmp

          memory/4724-230-0x0000000002E80000-0x0000000002E9A000-memory.dmp

          memory/4724-231-0x000000001CEF0000-0x000000001D076000-memory.dmp

          memory/5004-83-0x00000000050D0000-0x00000000050F8000-memory.dmp