Analysis

  • max time kernel
    149s
  • max time network
    130s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/10/2026, 06:26

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 19.8MB
  • Sample261002-g67zrasdkc
  • SHA256 40255f6a906e6ca63974de9c54fb35d4df470288b9841ea69062f60ffbe7d9a3
  • 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 47 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.

  • Drops file in System32 directory 9 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 17 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).

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 6 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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 SetWindowsHookEx 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⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1600
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.6.9747\c9d1bc4967ac69db\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
      • Suspicious use of SetWindowsHookEx
      PID:2168
  • 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 SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4620
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 45689B21E30C2016991AEB053934893D C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1620
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI388B.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240728421 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2868
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI3C74.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240729265 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • Reads the TCP/IP host and domain name from the registry
        • System Location Discovery: System Language Discovery
        PID:1604
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI42ED.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240730906 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5684
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1064
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 93D5FC14C86D93E75E68EB899E5FDE8D
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3524
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding C51D9A42344EE5498058AF04639C41F9 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4520
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2440
    • C:\Program Files (x86)\ScreenConnect Client (c9d1bc4967ac69db)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (c9d1bc4967ac69db)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-wu1uom-relay.screenconnect.com&p=443&s=6349eac1-cdd3-4b07-8422-ede575bf3480&k=BgIAAACkAABSU0ExAAgAAAEAAQCl5GI2eVj1oO%2fQ8r247ycjtJM4rhWw40oo2ux%2fTsdbIIwHnNk7eHC2UjGD5FtGXN6O8dCyacr3U76FNMqC7kKTmz25M7TvnY9qaWjdLv3ko2uNkWbN4Owqg1knYhbFF1mqEV3nA1co11CCvyajs4by%2bXhuMxMsJ%2bfND00I7OieDrd%2by5TGqqbF35tRc%2bGyv7YTDSt8C8wBSdL49RTSrOpxvFdxIj7uUzIvQBnpDVH5rLmYVLCuyl0GQvvxSAcYth9trS9mQuqlAS6I%2b8Xz%2fukgXpMhrSG5Nb03qDFNGLXh2WYCEQatNkv4Y6zUWQte4S53f5vxjvn1qy8WLkWbaiK8"
      1⤵
      • Sets service image path in registry
      • Drops file in System32 directory
      • Executes dropped EXE
      • Loads dropped DLL
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1160
      • C:\Program Files (x86)\ScreenConnect Client (c9d1bc4967ac69db)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (c9d1bc4967ac69db)\ScreenConnect.WindowsClient.exe" "RunRole" "1d8e4ad0-b340-4590-82a8-bb58c22adea4" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4596
      • C:\Program Files (x86)\ScreenConnect Client (c9d1bc4967ac69db)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (c9d1bc4967ac69db)\ScreenConnect.WindowsClient.exe" "RunRole" "861b39a6-4d8c-4757-b1e0-039361e0560d" "System"
        2⤵
        • Executes dropped EXE
        • Reads the TCP/IP host and domain name from the registry
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:1680

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e599ad0.rbs

          • Path C:\Config.Msi\e599ad0.rbs
          • Size 214KB
          • SHA256 a99ebf256f29dd6f14ecf00c679c2e7deaf5105453638888a6834f7dec38ec7b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (c9d1bc4967ac69db)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (c9d1bc4967ac69db)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c9d1bc4967ac69db)\ScreenConnect.Client.dll
          • Size 615KB
          • SHA256 787a02b1938e8c1ce52448b8779d2c9c47029664f97185177c2584e8f980abc4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c9d1bc4967ac69db)\ScreenConnect.ClientService.dll
          • Size 176KB
          • SHA256 579fa008b8c96612163fd8a89a978140a652b3739867772df0711fca148705aa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (c9d1bc4967ac69db)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 d887f20ec383d7ce3a5727856bf7fa68ceb972108b6d0a5dd9924707e820dc24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c9d1bc4967ac69db)\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 5b2d14e237485c0164d865d8a94f8a8bed28ab0db52c6a7ef99f7ebb9648d324
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c9d1bc4967ac69db)\ScreenConnect.Windows.dll
          • Size 1.9MB
          • SHA256 88dd22f6f0ca70d10c64ca919b0d8b6d73e84c1d567d4b8d15b6e9a9b60d6d8f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c9d1bc4967ac69db)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (c9d1bc4967ac69db)\ScreenConnect.WindowsClient.exe
          • Size 1.6MB
          • SHA256 b7a495f517b9bf23f529552b145121f922ab4915e24b663ae68b3007daea3804
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c9d1bc4967ac69db)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 239377f4d2345d2a4ff6e3cbebd83c6edb06db4daea389159d19770a2dfcb80c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (c9d1bc4967ac69db)\system.config
          • Size 960B
          • SHA256 dff4448ef76cd305176dc964567074156e4161792aa044d5f03bb4fcabd948e7
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 ae1526a214c99736d149b0b720cd0f3962142c6d5d3f085396afd0a901fc71cb
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 307db0fb56225eedd300dafb363d7b91db4e02c6c5d308c0b36c7bcb06d67d90
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 eeddefd561ab7f8949b4fc6438417d0a4308b5d7849d6cd96b6c653e6b6e700e
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 96248db37c986e25e2aae0b7a6577cc05a40487813e2f509d0d6498773b6f5cf
          • MD5 SHA1 SHA512 TLSH

          MSI388B.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI388B.tmp
          • Size 1.9MB
          • SHA256 1dabfa60015c186a4315f16d46d9e53435dc259c52843e73dac0d04be92f9a84
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI388B.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI388B.tmp-\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 e5fd82d18c2dcaadbfc4b72b56573e819cc3e8ee6406f2edb982cc073dc607bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI388B.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 cf8505204b1458dac9cb3002fd5bbd5fac43c5b4702aa0153fb4b9a2cfcf954a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI388B.tmp-\ScreenConnect.Windows.dll
          • Size 1.8MB
          • SHA256 ed1b4eb6c24c85392f692bf5863d9ccb76575051bb605360961b9d7624a371c6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3C74.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3C74.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 390KB
          • SHA256 c469358d585fa9f1637a02d194e162e454d90b8dc7e4939f88b36e09b04a7a96
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.6.9747\c9d1bc4967ac69db\ScreenConnect.ClientSetup.msi
          • Size 16.2MB
          • SHA256 872e569dacdd9df45e829a584bc6075c748513329fd47d3419c8c1edd3067857
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIA242.tmp

          • Path C:\Windows\Installer\MSIA242.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (c9d1bc4967ac69db)\user.config
          • Size 520B
          • SHA256 1ab604c00d15d40076508ae36cdee6d7bdc9785237eeffdb35e8dbf257b0bf69
          • MD5 SHA1 SHA512 TLSH

          wymidu5e.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (c9d1bc4967ac69db)\wymidu5e.newcfg
          • Size 882B
          • SHA256 3b0b53fe1ab6a1d67ea78de243d696fbab9cc51e99e55e53663f46023c128a43
          • MD5 SHA1 SHA512 TLSH

          xmaecxgs.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (c9d1bc4967ac69db)\xmaecxgs.newcfg
          • Size 683B
          • SHA256 b35f34b19ee6c188a3ac02aa42066573b1c85cd3e9e0138e29c855d0dd285f27
          • MD5 SHA1 SHA512 TLSH

          memory/1160-212-0x0000000004C00000-0x0000000004CD6000-memory.dmp

          memory/1160-174-0x0000000004830000-0x0000000004A10000-memory.dmp

          memory/1160-208-0x0000000004A10000-0x0000000004AA2000-memory.dmp

          memory/1160-210-0x00000000046F0000-0x0000000004731000-memory.dmp

          memory/1160-164-0x0000000001CE0000-0x0000000001D10000-memory.dmp

          memory/1160-207-0x0000000004790000-0x000000000482E000-memory.dmp

          memory/1160-170-0x00000000044F0000-0x000000000464A000-memory.dmp

          memory/1160-188-0x00000000046A0000-0x00000000046F0000-memory.dmp

          memory/1600-5-0x0000000006370000-0x00000000063D8000-memory.dmp

          memory/1600-11-0x00000000744C0000-0x0000000074C7C000-memory.dmp

          memory/1600-4-0x00000000064D0000-0x000000000662A000-memory.dmp

          memory/1600-13-0x00000000744C0000-0x0000000074C7C000-memory.dmp

          memory/1600-7-0x0000000006630000-0x0000000006810000-memory.dmp

          memory/1600-1-0x00000000024F0000-0x00000000024F8000-memory.dmp

          memory/1600-2-0x00000000744C0000-0x0000000074C7C000-memory.dmp

          memory/1600-8-0x0000000006DD0000-0x000000000738A000-memory.dmp

          memory/1600-6-0x00000000744C0000-0x0000000074C7C000-memory.dmp

          memory/1600-0-0x00000000744D2000-0x00000000744D3000-memory.dmp

          memory/1600-3-0x0000000002510000-0x000000000251C000-memory.dmp

          memory/1600-10-0x00000000744C0000-0x0000000074C7C000-memory.dmp

          memory/1604-83-0x0000000005A10000-0x0000000005A78000-memory.dmp

          memory/2868-45-0x0000000005C60000-0x0000000005C6C000-memory.dmp

          memory/2868-41-0x0000000005C20000-0x0000000005C4E000-memory.dmp

          memory/2868-53-0x0000000006110000-0x00000000062F0000-memory.dmp

          memory/2868-49-0x0000000005DD0000-0x0000000005F2A000-memory.dmp

          memory/4596-228-0x0000000000BF0000-0x0000000000D86000-memory.dmp

          memory/4596-229-0x000000001B9D0000-0x000000001BA6E000-memory.dmp

          memory/4596-230-0x000000001BED0000-0x000000001C02A000-memory.dmp

          memory/4596-233-0x000000001C210000-0x000000001C3F0000-memory.dmp

          memory/4596-234-0x000000001D010000-0x000000001D198000-memory.dmp

          memory/4596-235-0x000000001B950000-0x000000001B980000-memory.dmp

          memory/4620-187-0x000001C476970000-0x000001C477314000-memory.dmp