Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/07/2026, 12:17

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260729-pf2n2stejc
  • SHA256 68c11d59e203660eef0c1a61e62f17c017d7ff6bbda3021791c4a0172658dee9
  • 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.

  • 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 42 IoCs
  • 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
  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 17 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 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 9 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:2652
  • 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:252
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding F253A7B802B10DDF40B11901674A733A C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5844
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIB368.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240760062 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1976
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIBA4E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240761468 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4316
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIC368.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240763781 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4648
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3700
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 7138F2F007D3DF6D3ED61308CFD44E55
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2296
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding FC1DAC06C57442FBDABB41961F13F6E6 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2280
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3508
    • C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-dbse2u-relay.screenconnect.com&p=443&s=a9c9d076-7ca2-4a0a-844d-449895eb3cfb&k=BgIAAACkAABSU0ExAAgAAAEAAQCNjK8BMReKwC2acCHMBLbZcOPV58EBDOdzRX36FdKGJ8dEq%2fqZT0%2blzMmmOPnBai7EMKXsVNEqzHFBcmhsdWL0dUmr3opg68zgNc3JK6zHczmOsSxZNoK7zrCzCgzMdC1%2b%2fFgKUmqv2H23%2fLibzXxE8raayzpeoxc1KZIZA5oo69%2fftzYkRmc3JYB%2fHdRMl1eEC%2brLvxYY6n0cuYt9x%2f9GUqBVa1ujFnBx%2fNq50rK8DP1dVzl1p4BWwr2RdgX3%2bfhZ2YA2%2fZXiGuothbWpcoianeGwTGXrAPNP7IhHrqMiySjVwkJGGzvnu4YXgqmXivyj78%2ba9TXiHH9QSmHn4YmY"
      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:5328
      • C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.WindowsClient.exe" "RunRole" "47cd3e99-d465-4acb-bb4d-5fcf71023ac8" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4192
      • C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.WindowsClient.exe" "RunRole" "1dcbfede-a414-4223-8271-68e8e129a56a" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:3488

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a1ca2.rbs

          • Path C:\Config.Msi\e5a1ca2.rbs
          • Size 214KB
          • SHA256 cf57ff9cd0202c227a6f91d1f7e560ccaece076230e369e8488c4c114aa5eab3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (59bf4a1f4b4fd66c)\system.config
          • Size 970B
          • SHA256 9e3baad6eca435c738867d4ebc77f0703cb7562c8fdb06388d81db9211875a99
          • MD5 SHA1 SHA512 TLSH

          MSIB368.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB368.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB368.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB368.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB368.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB368.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIBA4E.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIBA4E.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI2388.tmp

          • Path C:\Windows\Installer\MSI2388.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5a1ca1.msi

          • Path C:\Windows\Installer\e5a1ca1.msi
          • Size 9.8MB
          • SHA256 68c11d59e203660eef0c1a61e62f17c017d7ff6bbda3021791c4a0172658dee9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          4wt5dqge.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (59bf4a1f4b4fd66c)\4wt5dqge.newcfg
          • Size 883B
          • SHA256 cdccb93b9b7d02df87008ba45f12bf7fa5f2d27c103270a7214d584b5d38fca6
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (59bf4a1f4b4fd66c)\user.config
          • Size 683B
          • SHA256 7c18bb0e16fc893778e8a43b26c11840883cffe5855ed0a89dcf1a589fe0aaba
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (59bf4a1f4b4fd66c)\user.config
          • Size 520B
          • SHA256 e13207ba3438ee50eb52e2ac4736dbbba15c4fc75eb700d5fe6281c5ba01eccc
          • MD5 SHA1 SHA512 TLSH

          {4a1a5171-89ae-43e5-b3e0-c26aaeb153ba}_OnDiskSnapshotProp

          • Path \??\Volume{c61fa831-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{4a1a5171-89ae-43e5-b3e0-c26aaeb153ba}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 105ae8e18d0505bc42905c3c7462da5dea4d8712b501ad9235f8752929e91805
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1976-31-0x00000000063E0000-0x0000000006590000-memory.dmp

          memory/1976-19-0x0000000004040000-0x000000000406E000-memory.dmp

          memory/1976-23-0x0000000004090000-0x000000000409C000-memory.dmp

          memory/1976-27-0x0000000006190000-0x0000000006224000-memory.dmp

          memory/1976-32-0x0000000006B50000-0x000000000710A000-memory.dmp

          memory/3488-212-0x000000001B5C0000-0x000000001B6EF000-memory.dmp

          memory/3488-211-0x0000000002AB0000-0x0000000002AF1000-memory.dmp

          memory/4192-206-0x000000001B6B0000-0x000000001B860000-memory.dmp

          memory/4192-207-0x0000000000AF0000-0x0000000000B0A000-memory.dmp

          memory/4192-214-0x000000001B0D0000-0x000000001B1FF000-memory.dmp

          memory/4192-209-0x00000000024A0000-0x00000000024E1000-memory.dmp

          memory/4192-208-0x000000001B9F0000-0x000000001BB78000-memory.dmp

          memory/4192-203-0x00000000001D0000-0x000000000027E000-memory.dmp

          memory/4192-204-0x0000000002430000-0x000000000249C000-memory.dmp

          memory/4192-205-0x0000000002730000-0x00000000027C4000-memory.dmp

          memory/4316-62-0x0000000003900000-0x0000000003928000-memory.dmp

          memory/5328-149-0x0000000004530000-0x00000000046E0000-memory.dmp

          memory/5328-182-0x00000000044E0000-0x0000000004521000-memory.dmp

          memory/5328-179-0x0000000004730000-0x000000000479C000-memory.dmp

          memory/5328-180-0x0000000004840000-0x00000000048D2000-memory.dmp

          memory/5328-139-0x0000000001AB0000-0x0000000001ACA000-memory.dmp

          memory/5328-162-0x00000000046E0000-0x0000000004730000-memory.dmp

          memory/5328-145-0x00000000042E0000-0x0000000004374000-memory.dmp

          memory/5328-184-0x0000000004A30000-0x0000000004B06000-memory.dmp