Analysis

  • max time kernel
    149s
  • max time network
    135s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    13/08/2026, 12:19

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260813-phebjayhkf
  • SHA256 2ad4286e44bfb6263a3869ad6ed7653f5e6e543a4ed6f8fb828404d41e82c7d5
  • 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.

  • 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 3 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.

  • 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 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 5 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 10 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:5420
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\e9ae0c908c933b12\ScreenConnect.ClientSetup.msi" SC_EXE_PATH="C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
      2⤵
      • Badlisted process makes network request
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:1176
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Badlisted process makes network request
    • 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:5292
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 05CD82D7D88ACD2C4C7042039B2E5BB7 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2884
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI624A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240739078 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1760
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI65B6.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240740000 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4216
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6C5E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240741703 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3948
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4656
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding CBABD0DD6D40A92A1FF07585D879F22C
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3084
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 204864DF878B58C5940C495A1AF707E4 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5524
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2500
    • C:\Program Files (x86)\ScreenConnect Client (e9ae0c908c933b12)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (e9ae0c908c933b12)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-k2z6jy-relay.screenconnect.com&p=443&s=a402797e-0774-4d63-8a01-63d826434544&k=BgIAAACkAABSU0ExAAgAAAEAAQDB76HGjl6C7Nj0tDcS3gOykYjrimZG%2biZGIfjSpVrqfw9sgGJvmLvocmU7KnD4%2fKCIGLsLFQRQkkNalFcJ%2bL8AH00%2fk7EmpYBsy03KXFItF2A7Jx7E02v%2fEYHekE6txrUCB%2bwiCfho6R%2fgnY9QhiCeFjyRK3cDZzyQJ%2bKavFzoGbHNIcSGBWpidzlChC8Uvhpacy7FLyo4JQpBPrD%2fcH2m7Fd3MZviMcOb5ab%2blYHaAwMwKi2oUwzfSDxyIwZiunqXdP9Ow6mnA%2bUCXJlf%2fvltflmyBMV8XBcfdALO2WVQoUGt7WObyRnx%2bU9MbIxC7fkNqwibZv1Re3Tl8IO%2fwWqb"
      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:4456
      • C:\Program Files (x86)\ScreenConnect Client (e9ae0c908c933b12)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (e9ae0c908c933b12)\ScreenConnect.WindowsClient.exe" "RunRole" "05e3d211-550c-457f-8e7d-bcb44cb2d9f1" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:700
      • C:\Program Files (x86)\ScreenConnect Client (e9ae0c908c933b12)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (e9ae0c908c933b12)\ScreenConnect.WindowsClient.exe" "RunRole" "35735a3f-9664-4833-a944-bff5f256360a" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:2900

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59c74f.rbs

          • Path C:\Config.Msi\e59c74f.rbs
          • Size 214KB
          • SHA256 cc92516ee0463cf34d15debe29d8ee357c41db99e0fb4f5245fc63dcc6a6861f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (e9ae0c908c933b12)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (e9ae0c908c933b12)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e9ae0c908c933b12)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e9ae0c908c933b12)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (e9ae0c908c933b12)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e9ae0c908c933b12)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e9ae0c908c933b12)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e9ae0c908c933b12)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (e9ae0c908c933b12)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (e9ae0c908c933b12)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e9ae0c908c933b12)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (e9ae0c908c933b12)\system.config
          • Size 972B
          • SHA256 e64f81cf7009978cbe03c37a38b64ece368fb063ab1f5c7ac54248086f4eb953
          • MD5 SHA1 SHA512 TLSH

          57C8EDB95DF3F0AD4EE2DC2B8CFD4157

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157
          • Size 4KB
          • SHA256 0300e9ddb527990e8b59d06e9ccf3ec2bd92d3bbd0ef4fba69d6336e4195e82d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          57C8EDB95DF3F0AD4EE2DC2B8CFD4157

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157
          • Size 342B
          • SHA256 43e7059f007ebf52f3a33cf4b210655056f719d54677ace08114d5fee5189c6d
          • MD5 SHA1 SHA512 TLSH

          MSI624A.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI624A.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI624A.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI624A.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI624A.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI624A.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI65B6.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI65B6.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\e9ae0c908c933b12\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 35bf239353b60bcf1d96cda446d1f6688ea78406f2472a95deadb53f9ee56c13
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSICD88.tmp

          • Path C:\Windows\Installer\MSICD88.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          5zsxget3.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (e9ae0c908c933b12)\5zsxget3.newcfg
          • Size 883B
          • SHA256 1303761a928a4b1566d765d6212aea110682fed66f709ca491f9d5b3aa02c1da
          • MD5 SHA1 SHA512 TLSH

          qkwpvkjz.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (e9ae0c908c933b12)\qkwpvkjz.newcfg
          • Size 683B
          • SHA256 4d9c58be5e4755ec74348095662628162a296c268cbdf0e6a4767867ae7887fa
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (e9ae0c908c933b12)\user.config
          • Size 520B
          • SHA256 3351ad918e0466eb5e25c7899cc193515363ed96ca4d024061fda69fb7f4f1c1
          • MD5 SHA1 SHA512 TLSH

          memory/700-226-0x000000001C400000-0x000000001C5B0000-memory.dmp

          memory/700-229-0x00000000030E0000-0x0000000003121000-memory.dmp

          memory/700-228-0x000000001D1D0000-0x000000001D358000-memory.dmp

          memory/700-227-0x00000000030C0000-0x00000000030DA000-memory.dmp

          memory/700-225-0x000000001C0B0000-0x000000001C144000-memory.dmp

          memory/700-224-0x0000000003130000-0x000000000319C000-memory.dmp

          memory/700-222-0x0000000000FF0000-0x000000000109E000-memory.dmp

          memory/1760-32-0x00000000055A0000-0x00000000055CE000-memory.dmp

          memory/1760-36-0x00000000055E0000-0x00000000055EC000-memory.dmp

          memory/1760-40-0x00000000056B0000-0x0000000005744000-memory.dmp

          memory/1760-44-0x0000000005900000-0x0000000005AB0000-memory.dmp

          memory/2900-230-0x00000000029F0000-0x0000000002A31000-memory.dmp

          memory/4216-74-0x00000000056A0000-0x00000000056C8000-memory.dmp

          memory/4456-157-0x0000000001F70000-0x0000000001F8A000-memory.dmp

          memory/4456-179-0x00000000048C0000-0x0000000004910000-memory.dmp

          memory/4456-163-0x00000000046D0000-0x0000000004764000-memory.dmp

          memory/4456-202-0x0000000004880000-0x00000000048C1000-memory.dmp

          memory/4456-167-0x0000000004920000-0x0000000004AD0000-memory.dmp

          memory/4456-200-0x0000000004C50000-0x0000000004CE2000-memory.dmp

          memory/4456-204-0x0000000004E40000-0x0000000004F16000-memory.dmp

          memory/4456-199-0x0000000004B40000-0x0000000004BAC000-memory.dmp

          memory/5420-2-0x0000000003830000-0x000000000383C000-memory.dmp

          memory/5420-3-0x0000000005EC0000-0x0000000005F54000-memory.dmp

          memory/5420-7-0x0000000006820000-0x0000000006DDA000-memory.dmp

          memory/5420-1-0x0000000003810000-0x0000000003818000-memory.dmp

          memory/5420-9-0x0000000074480000-0x0000000074C3C000-memory.dmp

          memory/5420-4-0x0000000005F50000-0x0000000005F78000-memory.dmp

          memory/5420-10-0x0000000074480000-0x0000000074C3C000-memory.dmp

          memory/5420-5-0x00000000060B0000-0x0000000006260000-memory.dmp

          memory/5420-6-0x0000000074480000-0x0000000074C3C000-memory.dmp

          memory/5420-12-0x0000000074480000-0x0000000074C3C000-memory.dmp

          memory/5420-0-0x0000000074492000-0x0000000074493000-memory.dmp