Analysis

  • max time kernel
    149s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    07/07/2026, 12:15

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260707-pezhashv21
  • SHA256 a7ed8e8632978451c44a0a057ca1cd6b7f9b917399de84ab35efab652a6ecd95
  • 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.

  • 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.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 42 IoCs
  • 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.

  • Drops file in System32 directory 13 IoCs
  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 13 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 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 9 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2320
  • 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:3388
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 62E2A72FA4B03625C4AC1B1E317052A3 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3260
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6A9C.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240675656 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1076
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI7183.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240677281 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1432
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI77DD.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240678906 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4004
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2716
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 2E74F7AD482CD745840ED7FE32F39223
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2724
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 011150D5E452B928438B167EAAC482A0 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:3852
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1436
    • C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-yjwtek-relay.screenconnect.com&p=443&s=f90cfd44-4d1e-4150-a8a2-fa2460523788&k=BgIAAACkAABSU0ExAAgAAAEAAQAhADT2mJ%2bsNroLwX6qJuNDo3cMCgBb76vaTqq1eQ8r4%2b3wHOD046tKkAVnOdVsnQavNexjunYWxfXNBg2F2KvV7M0lERlJ0MQD%2bbmZFH3pYJ9TiphXfaiDHgSNPshkJL%2f5Ets0cfDEC5bQSI1gJnB8%2fWjqrwWXFLQ%2fOswUSjjLbCuvtZcWFDZHV6A%2fTOBsd%2fli1svNYZvElZTi%2fOxPOSSJGloHLgC4vF0PtY8F2V%2blxYRSF%2bJYZamvorKlZf9hPomRMv1N8tj35j9ZUHpJO6ZamVq4Ynnxjv37jgOmqCD8%2fRb9nuJTpI4zNsqgD31%2bWvhHLCjXHLUtBrJifGzNGO7E"
      1⤵
      • Sets service image path in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4040
      • C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.WindowsClient.exe" "RunRole" "1123aef4-2362-49f7-a359-c1d87542414c" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5020
      • C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.WindowsClient.exe" "RunRole" "08eb94ec-2a9b-4f3c-b99e-94e203de5382" "System"
        2⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4748

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e58c57f.rbs

          • Path C:\Config.Msi\e58c57f.rbs
          • Size 214KB
          • SHA256 11f5c14ebef9c6f4e082ab112c6aac7a9b15c245cc2b2ec355242ed39704ae8e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.WindowsClient.exe
          • Size 675KB
          • SHA256 6d1660e7e219fd873124c6e491ed41793a9b43b29e90ca494893a07a70abe172
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (8db655b205bc7fc2)\system.config
          • Size 970B
          • SHA256 f58783ab4e7fe06073bb6b52b721a6c740cea795f46a876c285a60f0db2c36ae
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 71db75b2858ea98a00544b0df56cf75e347122a68b0d0498681ef021abdf5185
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 013580207c7a5771649165d47b08591712b290fa881316a1f8d3d55724701a66
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 fd5d978310d23ca681beaf2c24174369783b031ade4d66ad669ed7406638a543
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 cd4d17125b949bf72f6b0084909d1b44d3af2ee80808fd92bbf0cf228542e083
          • 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

          MSI6A9C.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6A9C.tmp
          • Size 1.1MB
          • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6A9C.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6A9C.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6A9C.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6A9C.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7183.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7183.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 8e0d135002984f0dbae6575086d9a72d51aa8dd58e53a9e0eba58c0d5bc7678e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIC734.tmp

          • Path C:\Windows\Installer\MSIC734.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e58c57e.msi

          • Path C:\Windows\Installer\e58c57e.msi
          • Size 9.8MB
          • SHA256 a7ed8e8632978451c44a0a057ca1cd6b7f9b917399de84ab35efab652a6ecd95
          • MD5 SHA1 SHA512 SSDEEP TLSH

          5axdkp2w.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (8db655b205bc7fc2)\5axdkp2w.newcfg
          • Size 882B
          • SHA256 a9272c40483bbbf55c2574e2949b3e633999c00f0f119da437155d743dc6f57c
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (8db655b205bc7fc2)\user.config
          • Size 882B
          • SHA256 4a6b78416b866b8e9903481f60c8def04ace6ef1850ff26c8bff8312905f5411
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (8db655b205bc7fc2)\user.config
          • Size 520B
          • SHA256 33057464fb396d11fc6d016e0f75eb040bb83cecc398e391bdc8c489e9dcc68a
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (8db655b205bc7fc2)\user.config
          • Size 683B
          • SHA256 0a765a2808a519470e5642a2cc9680d0e42c37175b995ab413d2ef2f1973ce0d
          • MD5 SHA1 SHA512 TLSH

          memory/1076-39-0x0000000005530000-0x00000000056E0000-memory.dmp

          memory/1076-27-0x0000000005160000-0x000000000518E000-memory.dmp

          memory/1076-35-0x00000000052E0000-0x0000000005374000-memory.dmp

          memory/1076-40-0x0000000005C90000-0x0000000006234000-memory.dmp

          memory/1076-31-0x00000000051A0000-0x00000000051AC000-memory.dmp

          memory/1432-72-0x0000000005370000-0x0000000005398000-memory.dmp

          memory/4040-176-0x00000000043D0000-0x0000000004420000-memory.dmp

          memory/4040-153-0x00000000040C0000-0x00000000040DA000-memory.dmp

          memory/4040-198-0x0000000004940000-0x0000000004A16000-memory.dmp

          memory/4040-194-0x0000000004760000-0x00000000047F2000-memory.dmp

          memory/4040-193-0x0000000004490000-0x00000000044FC000-memory.dmp

          memory/4040-163-0x0000000004510000-0x00000000046C0000-memory.dmp

          memory/4040-159-0x00000000042C0000-0x0000000004354000-memory.dmp

          memory/4040-196-0x0000000004420000-0x0000000004461000-memory.dmp

          memory/5020-215-0x0000000000560000-0x000000000060C000-memory.dmp

          memory/5020-218-0x000000001CD50000-0x000000001CF00000-memory.dmp

          memory/5020-217-0x000000001CB00000-0x000000001CB94000-memory.dmp

          memory/5020-220-0x000000001C6A0000-0x000000001C6BA000-memory.dmp

          memory/5020-221-0x000000001D090000-0x000000001D216000-memory.dmp

          memory/5020-216-0x000000001C6F0000-0x000000001C75C000-memory.dmp