Analysis

  • max time kernel
    148s
  • max time network
    151s
  • 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, 12:10

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260710-pca2xsa15q
  • SHA256 759c542a56dd3dfee7e9c931c8d1a2cde91c9dfb70c18d4ef6aa6c87f74d130f
  • 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.

  • ConnectWise ScreenConnect remote access tool

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

  • 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.

  • Drops file in System32 directory 9 IoCs
  • 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.

  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 17 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 42 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

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

  • Modifies data under HKEY_USERS 8 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 2 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe
    "C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2076
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\c3e2ba036ad685ee\ScreenConnect.ClientSetup.msi" SC_EXE_PATH="C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
      2⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:3808
  • 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:4888
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 9BBFF7F6D994F00221739FD7D6B86D2D C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:264
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI8459.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240747734 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3712
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI86DB.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240748296 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1776
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI8DB2.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240750421 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4264
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 16FAE13B844A6CCDEF48A8EFB6350CB0
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:3324
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 9134A6A19E605B5E9E6008AA002F3247 E Global\MSI0000
      2⤵
      • Drops file in Windows directory
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:1148
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
      PID:4160
    • C:\Program Files (x86)\ScreenConnect Client (c3e2ba036ad685ee)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (c3e2ba036ad685ee)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-uf807p-relay.screenconnect.com&p=443&s=cccdcda4-9715-41ad-88a9-6a6cbdbb8568&k=BgIAAACkAABSU0ExAAgAAAEAAQBVg0xccJMXcGbB1NAt00dWPFy3RR1C6Btdjt0s3C7rgL8O2Ydet4iEEygAcZ8yFSbFJeCNmRSfEmwDEeTP%2b5IXBrlKHkvmqNDEfbVvPJ6cnXDPV3jfs4nTAwm5GYdZGpgJMBWR9%2f6wmb6FJx%2ffTw3YS%2b2DE2S7iwynM3G1Y4VKoFqRGMcrdsVrf0Q1Mj5rEhXR5nLVj1q2eTbfdRBZuuLeVtjsglHdrRZn2uEMC0TQ3hg5aqz5bWOgmrOrEjtlcSCj9%2fF9jwxtrYgZgAQZLkOXSLBNPf9g5C6yFxYhOHNsaUE1OUQ48ml6top3z7EkZlU0DVAup7IHmEEC5Pq6CZ7b"
      1⤵
      • Sets service image path in registry
      • Drops file in System32 directory
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2988
      • C:\Program Files (x86)\ScreenConnect Client (c3e2ba036ad685ee)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (c3e2ba036ad685ee)\ScreenConnect.WindowsClient.exe" "RunRole" "a03927f3-c901-40f3-b33b-acedbcc440df" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2876

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59936d.rbs

          • Path C:\Config.Msi\e59936d.rbs
          • Size 214KB
          • SHA256 0977330b0d0c1a4aafb94a5611da6bc299d8822e4fec0a6773bf786eafb2c924
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (c3e2ba036ad685ee)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (c3e2ba036ad685ee)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c3e2ba036ad685ee)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c3e2ba036ad685ee)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (c3e2ba036ad685ee)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c3e2ba036ad685ee)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c3e2ba036ad685ee)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c3e2ba036ad685ee)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (c3e2ba036ad685ee)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (c3e2ba036ad685ee)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c3e2ba036ad685ee)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (c3e2ba036ad685ee)\system.config
          • Size 954B
          • SHA256 8ad77bf5d5384de64bf3b697c43a4fdcde913df8f1a8392830a5cc6709c065ad
          • MD5 SHA1 SHA512 TLSH

          MSI8459.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8459.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8459.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8459.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8459.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI8459.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI86DB.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI86DB.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\c3e2ba036ad685ee\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 15c2d1b61545c4561088402cd2dad9b13ce56a2164345c732e0528c93eb3968c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI962C.tmp

          • Path C:\Windows\Installer\MSI962C.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          nvmpu2cd.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (c3e2ba036ad685ee)\nvmpu2cd.newcfg
          • Size 884B
          • SHA256 34b7e14e417669a12727a5675f54ce355e6a5900016fc23f996faf0fd521a8e8
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (c3e2ba036ad685ee)\user.config
          • Size 520B
          • SHA256 9057a1b873122d1641571b392a16dc46670218449780a94c88037286e14c884b
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (c3e2ba036ad685ee)\user.config
          • Size 683B
          • SHA256 0f31b33db3633bfba170d862002e0cefdd7d46647bce79e35fec636b8a880033
          • MD5 SHA1 SHA512 TLSH

          memory/1776-75-0x0000000003890000-0x00000000038B8000-memory.dmp

          memory/2076-2-0x00000000058F0000-0x00000000058FC000-memory.dmp

          memory/2076-13-0x0000000075130000-0x00000000758EC000-memory.dmp

          memory/2076-11-0x0000000075130000-0x00000000758EC000-memory.dmp

          memory/2076-6-0x0000000005A50000-0x0000000005C00000-memory.dmp

          memory/2076-8-0x0000000075130000-0x00000000758EC000-memory.dmp

          memory/2076-4-0x0000000005A20000-0x0000000005A48000-memory.dmp

          memory/2076-1-0x00000000033A0000-0x00000000033A8000-memory.dmp

          memory/2076-7-0x00000000061D0000-0x000000000678A000-memory.dmp

          memory/2076-10-0x0000000075130000-0x00000000758EC000-memory.dmp

          memory/2076-3-0x0000000005960000-0x00000000059F4000-memory.dmp

          memory/2076-0-0x0000000075142000-0x0000000075143000-memory.dmp

          memory/2076-5-0x0000000075130000-0x00000000758EC000-memory.dmp

          memory/2876-212-0x0000000000B80000-0x0000000000C2E000-memory.dmp

          memory/2876-219-0x000000001B930000-0x000000001B971000-memory.dmp

          memory/2876-218-0x000000001C1B0000-0x000000001C338000-memory.dmp

          memory/2876-217-0x0000000002E60000-0x0000000002E7A000-memory.dmp

          memory/2876-214-0x000000001BC20000-0x000000001BCB4000-memory.dmp

          memory/2876-216-0x000000001BE70000-0x000000001C020000-memory.dmp

          memory/2876-213-0x0000000002FC0000-0x000000000302C000-memory.dmp

          memory/2988-159-0x0000000004B20000-0x0000000004CD0000-memory.dmp

          memory/2988-180-0x0000000004D40000-0x0000000004DAC000-memory.dmp

          memory/2988-155-0x00000000048D0000-0x0000000004964000-memory.dmp

          memory/2988-161-0x0000000004AC0000-0x0000000004B10000-memory.dmp

          memory/2988-149-0x0000000002320000-0x000000000233A000-memory.dmp

          memory/2988-184-0x0000000004E50000-0x0000000004EE2000-memory.dmp

          memory/2988-186-0x0000000004A70000-0x0000000004AB1000-memory.dmp

          memory/2988-188-0x0000000005040000-0x0000000005116000-memory.dmp

          memory/3712-33-0x00000000051F0000-0x000000000521E000-memory.dmp

          memory/3712-37-0x00000000051D0000-0x00000000051DC000-memory.dmp

          memory/3712-45-0x0000000005510000-0x00000000056C0000-memory.dmp

          memory/3712-41-0x00000000052C0000-0x0000000005354000-memory.dmp