Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    07/08/2026, 18:17

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260807-wxdf4styhw
  • SHA256 ad9089fd9b235481362155f2f0eafed2f7d0ea404833e35d9c2544486e6c167a
  • 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:4192
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\1c4dca1c52f6e646\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:1848
  • 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:2992
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 5B47EF745227A056A34FDD2ECDD7347A C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1064
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI920A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240685656 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3928
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI975A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240686953 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4700
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9D47.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240688500 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3268
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5080
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding B038B9F5507E58831EAC088C246DA7AE
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2864
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 49237EAD2F6123CF16D207DA30DA7EBA E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4768
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1744
    • C:\Program Files (x86)\ScreenConnect Client (1c4dca1c52f6e646)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (1c4dca1c52f6e646)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-mpy270-relay.screenconnect.com&p=443&s=6095e65e-0fb1-4ba8-83f1-0cde5b87b2c8&k=BgIAAACkAABSU0ExAAgAAAEAAQClcM66%2bZyhxhpjdHLlocQniQbifNbsdKBUnirmRdPAFHt47ABVkv5cvJkGqdG4T4uoVZumq%2bYZU4%2fH%2fy6yB7TIDbUWEiSaZJR8Zdwwz1ZPffZbuwDWWchT0Ednj9AVyo8KKntlg%2bztwNwY7VgOzztU5IigBz3epEyntqW0gPK2hira8HKVPPl9RTPwH6Nvo%2bdcezjn4ZgfneVxVxuKjrFFB4yr8P5VSR%2bI4CJsOoeQ0JRfyuOqwnpJ%2fck81kmSb7BHEYr6EDCdV3eumCOncwrLiPZUJ7KwCdHs6cOgogRJw5eObGHZdup87zvjsg9BjevdB%2b7%2bBIBkxrdbVrpGmU%2bh"
      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:4248
      • C:\Program Files (x86)\ScreenConnect Client (1c4dca1c52f6e646)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (1c4dca1c52f6e646)\ScreenConnect.WindowsClient.exe" "RunRole" "e15f566b-f4ec-4d06-a4a7-0038097c073e" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3152
      • C:\Program Files (x86)\ScreenConnect Client (1c4dca1c52f6e646)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (1c4dca1c52f6e646)\ScreenConnect.WindowsClient.exe" "RunRole" "052c786b-4dde-4233-a680-954640ef2ce5" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:2392

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e58e4af.rbs

          • Path C:\Config.Msi\e58e4af.rbs
          • Size 214KB
          • SHA256 883aeee049656f792ba3cbbdc9818074418f32baa7722d67857269dd58a73484
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (1c4dca1c52f6e646)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (1c4dca1c52f6e646)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (1c4dca1c52f6e646)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (1c4dca1c52f6e646)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (1c4dca1c52f6e646)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (1c4dca1c52f6e646)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (1c4dca1c52f6e646)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (1c4dca1c52f6e646)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (1c4dca1c52f6e646)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (1c4dca1c52f6e646)\system.config
          • Size 966B
          • SHA256 01f9c6bd3aaade4fefacaff6fe90fdf377450ab19c037a72fa3fb20ece247da6
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 f8840b795624657737638f2cc9b4fe94b23f504f41d352f4171fb8260517151f
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 db1d5f399aac10e28e8c58ab6e8a9f1876422832b762d6231faa4f663e92885e
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 eb0296cd30ed4770b276f2b48a2c66ff6dce76721fc2c749cfe0aab257ae4ea4
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 4a5ba5d4ccf65736d455c2db7286aba27647fc1e428dd0146f77507c594139f2
          • 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

          MSI920A.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI920A.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI920A.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI920A.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI920A.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI920A.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI975A.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI975A.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\1c4dca1c52f6e646\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 64e64a277227d47993dcc283745206024b9470d34951b957dc03fd0d766512f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIE6F1.tmp

          • Path C:\Windows\Installer\MSIE6F1.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          3wpgjbdj.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (1c4dca1c52f6e646)\3wpgjbdj.newcfg
          • Size 879B
          • SHA256 9a179f637254a3b2d5515166be408f010e3724d8d3ff12fc4716fbf7dd5e13ef
          • MD5 SHA1 SHA512 TLSH

          rkommejr.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (1c4dca1c52f6e646)\rkommejr.newcfg
          • Size 683B
          • SHA256 723c21e1c545a9f4ffb819316007fabfc4cc9b9b83c87c296480bad82ac012c6
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (1c4dca1c52f6e646)\user.config
          • Size 520B
          • SHA256 161ed4b07ffe14bf00a211d01ae0c69df12906d79cdad7588d36499e28a88df0
          • MD5 SHA1 SHA512 TLSH

          memory/2392-235-0x000000001D1A0000-0x000000001D349000-memory.dmp

          memory/3152-232-0x0000000002F50000-0x0000000002F6A000-memory.dmp

          memory/3152-233-0x000000001C550000-0x000000001C6D6000-memory.dmp

          memory/3152-231-0x000000001C210000-0x000000001C3C0000-memory.dmp

          memory/3152-230-0x000000001BFC0000-0x000000001C054000-memory.dmp

          memory/3152-229-0x0000000002FD0000-0x000000000303C000-memory.dmp

          memory/3152-228-0x0000000000F40000-0x0000000000FEE000-memory.dmp

          memory/3152-236-0x000000001D550000-0x000000001D6F9000-memory.dmp

          memory/3928-39-0x0000000004CD0000-0x0000000004CFE000-memory.dmp

          memory/3928-43-0x0000000004D10000-0x0000000004D1C000-memory.dmp

          memory/3928-47-0x0000000004E30000-0x0000000004EC4000-memory.dmp

          memory/3928-51-0x0000000005080000-0x0000000005230000-memory.dmp

          memory/4192-6-0x0000000005850000-0x0000000005A00000-memory.dmp

          memory/4192-4-0x0000000005760000-0x00000000057F4000-memory.dmp

          memory/4192-8-0x0000000005800000-0x0000000005810000-memory.dmp

          memory/4192-0-0x0000000005800000-0x0000000005810000-memory.dmp

          memory/4192-7-0x0000000005FC0000-0x0000000006564000-memory.dmp

          memory/4192-3-0x00000000056A0000-0x00000000056AC000-memory.dmp

          memory/4192-5-0x0000000005820000-0x0000000005848000-memory.dmp

          memory/4192-2-0x0000000005800000-0x0000000005810000-memory.dmp

          memory/4192-1-0x0000000003190000-0x0000000003198000-memory.dmp

          memory/4248-206-0x0000000003A30000-0x0000000003A9C000-memory.dmp

          memory/4248-187-0x0000000003970000-0x00000000039C0000-memory.dmp

          memory/4248-174-0x0000000003AD0000-0x0000000003C80000-memory.dmp

          memory/4248-170-0x0000000003880000-0x0000000003914000-memory.dmp

          memory/4248-209-0x0000000003920000-0x0000000003961000-memory.dmp

          memory/4248-164-0x0000000001140000-0x000000000115A000-memory.dmp

          memory/4248-211-0x0000000003F00000-0x0000000003FD6000-memory.dmp

          memory/4248-207-0x0000000003D20000-0x0000000003DB2000-memory.dmp

          memory/4700-83-0x00000000054E0000-0x0000000005508000-memory.dmp