Overview

overview

8

Static

static

1

Zoom.msi

windows10-2004-x64

8

Zoom.msi

windows11-ltsc_2024-x64

8

Analysis

  • max time kernel
    148s
  • max time network
    141s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/07/2026, 12:16

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General

  • Target
    Zoom.msi
  • Size 9.8MB
  • Sample260710-pff3cabt8l
  • SHA256 459a970946abe6613b2fc55fb2fa1213f936e6375bdbc73b864ccabdc230a40e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
backdoordiscoverypersistenceprivilege_escalationransomwarerat

Malware Config

Signatures

  • Badlisted process makes network request 1 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.

    persistence
  • ConnectWise ScreenConnect remote access tool

    ConnectWise ScreenConnect is a remote desktop tool that can be used as a backdoor.

    backdoorrat
  • 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.

    persistenceprivilege_escalation
  • 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.

    persistenceprivilege_escalation
  • Drops file in System32 directory 9 IoCs
  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 17 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
    persistenceprivilege_escalation
  • 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.

    discovery
  • 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 8 IoCs
  • Uses Volume Shadow Copy service COM API

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

    ransomware

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\Zoom.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:4560
  • 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:356
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 85840B3E9C083A682E5125C60D6F91EA C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:948
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI58C5.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240736781 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2956
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI5F6D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240738578 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4816
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI670F.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240740390 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:240
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding AB06AE37B143E05D73F39CB92BDCE634
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:5568
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 140790B3BFEEFA29679B1A240CA7310A E Global\MSI0000
      2⤵
      • Loads dropped DLL
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:2524
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
      PID:5944
    • C:\Program Files (x86)\ScreenConnect Client (6c9508fd1973ce5a)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (6c9508fd1973ce5a)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-mbfqwg-relay.screenconnect.com&p=443&s=862971d7-e25a-444f-9020-f9dfdb497b74&k=BgIAAACkAABSU0ExAAgAAAEAAQCJ8BvpbvUoE9Qf4FaeZ8tnF2r%2bMAlh7oZ4D18AxHqKBTzt0YGwexsssvEtM6JZIwDL1IIXxd774AKDRJ2y3JfYFqeVTI0T1dl8rJbIeDMXaarwWLRFQ%2b4V9Oa%2fTENdHGc95BDpqkiLhspmnjH0rzVQg%2fU5tFVYKZyqQpSCpYd2Hfxxtstxgu2YzZVyQzaIKQGmT%2bvxtJp4R6L8p%2bZ37TmYIHDSBkoc7eQIQ31EV%2b%2fYtwg3PaUizXRukf6n2PRlmmWZePGP5ejcFc9vheI4HbWDxfJxeYFg0rEnL4T%2f%2bN6HDB8KRfj7aY%2bKMYvNnjJiHpW0Q67mCdhBGutZTjn8MIbF&c=It%20Company&c=&c=IT&c=Windows&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:2816
      • C:\Program Files (x86)\ScreenConnect Client (6c9508fd1973ce5a)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (6c9508fd1973ce5a)\ScreenConnect.WindowsClient.exe" "RunRole" "3d493830-b2cf-4158-888e-cf90d485dab9" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1904
      • C:\Program Files (x86)\ScreenConnect Client (6c9508fd1973ce5a)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (6c9508fd1973ce5a)\ScreenConnect.WindowsClient.exe" "RunRole" "32b124da-3b14-4c3f-bf2f-e4579c4b2e0b" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:3484

    Network

          MITRE ATT&CK Enterprise v16

          Reconnaissance

          Resource Development

          Initial Access

          Execution

          Persistence

          Boot or Logon Autostart Execution

          2
          T1547

          Authentication Package

          1
          T1547.002

          Registry Run Keys / Startup Folder

          1
          T1547.001

          Create or Modify System Process

          1
          T1543

          Windows Service

          1
          T1543.003

          Event Triggered Execution

          2
          T1546

          Component Object Model Hijacking

          1
          T1546.015

          Installer Packages

          1
          T1546.016

          Privilege Escalation

          Boot or Logon Autostart Execution

          2
          T1547

          Authentication Package

          1
          T1547.002

          Registry Run Keys / Startup Folder

          1
          T1547.001

          Create or Modify System Process

          1
          T1543

          Windows Service

          1
          T1543.003

          Event Triggered Execution

          2
          T1546

          Component Object Model Hijacking

          1
          T1546.015

          Installer Packages

          1
          T1546.016

          Defense Evasion

          Modify Registry

          1
          T1112

          System Binary Proxy Execution

          1
          T1218

          Msiexec

          1
          T1218.007

          Credential Access

          Discovery

          Peripheral Device Discovery

          1
          T1120

          Query Registry

          2
          T1012

          System Information Discovery

          2
          T1082

          System Location Discovery

          1
          T1614

          System Language Discovery

          1
          T1614.001

          Lateral Movement

          Collection

          Command and Control

          Exfiltration

          Impact

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59793e.rbs
          • Path C:\Config.Msi\e59793e.rbs
          • Size 214KB
          • SHA256 d1a503d7de52517a4b00e81d65a983927b1da25f5434c65090f7d473720d61b0
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          Client.en-US.resources
          • Path C:\Program Files (x86)\ScreenConnect Client (6c9508fd1973ce5a)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          Client.resources
          • Path C:\Program Files (x86)\ScreenConnect Client (6c9508fd1973ce5a)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ScreenConnect.Client.dll
          • Path C:\Program Files (x86)\ScreenConnect Client (6c9508fd1973ce5a)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ScreenConnect.ClientService.dll
          • Path C:\Program Files (x86)\ScreenConnect Client (6c9508fd1973ce5a)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ScreenConnect.ClientService.exe
          • Path C:\Program Files (x86)\ScreenConnect Client (6c9508fd1973ce5a)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ScreenConnect.Core.dll
          • Path C:\Program Files (x86)\ScreenConnect Client (6c9508fd1973ce5a)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ScreenConnect.Windows.dll
          • Path C:\Program Files (x86)\ScreenConnect Client (6c9508fd1973ce5a)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ScreenConnect.WindowsAuthenticationPackage.dll
          • Path C:\Program Files (x86)\ScreenConnect Client (6c9508fd1973ce5a)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ScreenConnect.WindowsClient.exe
          • Path C:\Program Files (x86)\ScreenConnect Client (6c9508fd1973ce5a)\ScreenConnect.WindowsClient.exe
          • Size 675KB
          • SHA256 6d1660e7e219fd873124c6e491ed41793a9b43b29e90ca494893a07a70abe172
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ScreenConnect.WindowsClient.exe.config
          • Path C:\Program Files (x86)\ScreenConnect Client (6c9508fd1973ce5a)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          ScreenConnect.WindowsCredentialProvider.dll
          • Path C:\Program Files (x86)\ScreenConnect Client (6c9508fd1973ce5a)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          system.config
          • Path C:\Program Files (x86)\ScreenConnect Client (6c9508fd1973ce5a)\system.config
          • Size 966B
          • SHA256 0c544db281f1e88b21b9373b3940714a55c840c6162f6d8bfeab79f7b14a86ed
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          MSI58C5.tmp
          • Path C:\Users\Admin\AppData\Local\Temp\MSI58C5.tmp
          • Size 1.1MB
          • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          Microsoft.Deployment.WindowsInstaller.dll
          • Path C:\Users\Admin\AppData\Local\Temp\MSI58C5.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ScreenConnect.Core.dll
          • Path C:\Users\Admin\AppData\Local\Temp\MSI58C5.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ScreenConnect.InstallerActions.dll
          • Path C:\Users\Admin\AppData\Local\Temp\MSI58C5.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ScreenConnect.Windows.dll
          • Path C:\Users\Admin\AppData\Local\Temp\MSI58C5.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          CustomAction.config
          • Path C:\Users\Admin\AppData\Local\Temp\MSI5F6D.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          ScreenConnect.WindowsInstaller.dll
          • Path C:\Users\Admin\AppData\Local\Temp\MSI5F6D.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 8e0d135002984f0dbae6575086d9a72d51aa8dd58e53a9e0eba58c0d5bc7678e
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          MSI7BBF.tmp
          • Path C:\Windows\Installer\MSI7BBF.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          e59793d.msi
          • Path C:\Windows\Installer\e59793d.msi
          • Size 9.8MB
          • SHA256 459a970946abe6613b2fc55fb2fa1213f936e6375bdbc73b864ccabdc230a40e
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          qvxekyvr.newcfg
          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (6c9508fd1973ce5a)\qvxekyvr.newcfg
          • Size 884B
          • SHA256 95181a9ea57c92b043a0149a93b3f8294e6074d73cf9d83e439a60acab00d4ad
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          s0ag2rn0.newcfg
          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (6c9508fd1973ce5a)\s0ag2rn0.newcfg
          • Size 683B
          • SHA256 b57642ac66d9cb9e00acdf5cfec1febab0123530122bcb35e8308f4d101dd37e
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          user.config
          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (6c9508fd1973ce5a)\user.config
          • Size 520B
          • SHA256 88affd6b297f5b891b30603289c25048bb51a8e8f84cef555f8ce3787c2a5e07
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          memory/240-99-0x0000000005620000-0x00000000056B2000-memory.dmp
          Download

          memory/1904-206-0x0000000001850000-0x000000000186A000-memory.dmp
          Download

          memory/1904-203-0x000000001C070000-0x000000001C104000-memory.dmp
          Download

          memory/1904-201-0x0000000000F20000-0x0000000000FCC000-memory.dmp
          Download

          memory/1904-202-0x0000000003080000-0x00000000030EC000-memory.dmp
          Download

          memory/1904-207-0x000000001C600000-0x000000001C788000-memory.dmp
          Download

          memory/1904-205-0x000000001C2C0000-0x000000001C470000-memory.dmp
          Download

          memory/2816-179-0x0000000004C50000-0x0000000004CBC000-memory.dmp
          Download

          memory/2816-181-0x00000000049D0000-0x0000000004A11000-memory.dmp
          Download

          memory/2816-143-0x0000000004850000-0x00000000048E4000-memory.dmp
          Download

          memory/2816-183-0x0000000004EB0000-0x0000000004F86000-memory.dmp
          Download

          memory/2816-153-0x0000000004980000-0x00000000049D0000-memory.dmp
          Download

          memory/2816-147-0x0000000004AA0000-0x0000000004C50000-memory.dmp
          Download

          memory/2816-137-0x00000000022D0000-0x00000000022EA000-memory.dmp
          Download

          memory/2956-32-0x00000000063D0000-0x000000000698A000-memory.dmp
          Download

          memory/2956-19-0x00000000038C0000-0x00000000038EE000-memory.dmp
          Download

          memory/2956-23-0x0000000003900000-0x000000000390C000-memory.dmp
          Download

          memory/2956-27-0x0000000005A10000-0x0000000005AA4000-memory.dmp
          Download

          memory/2956-31-0x0000000005C60000-0x0000000005E10000-memory.dmp
          Download

          memory/4816-62-0x0000000005E60000-0x0000000005E88000-memory.dmp
          Download