Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    23/07/2026, 00:15

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260723-ajvycaeb66
  • SHA256 50a8e2671f37ae9e4e8be32e082348caefac168668cc37605e34bb2947b116a9
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 3 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 2 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 13 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.

  • 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 WriteProcessMemory 8 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⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:4648
  • 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:4368
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 9EBB4FB870DAE310EFE7B81C0298D78D C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2264
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI952.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240650781 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5592
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSID6A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240651687 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5304
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI15D7.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240653796 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3612
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5928
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding C31BA9DCCBDD8CC847E2A768D0676D49
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3596
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 1D24DF8CDBD9F099CF98EB2EAF6101BA E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:1188
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:6108
    • C:\Program Files (x86)\ScreenConnect Client (2d061b84bcbdb211)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (2d061b84bcbdb211)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-ujpohk-relay.screenconnect.com&p=443&s=ca8b0e4c-c7a2-411d-bf5d-0d78dffcb390&k=BgIAAACkAABSU0ExAAgAAAEAAQDF8r0%2fLD9z0Aor%2bqML7i1LThZ4O8M6J8C3InwTJPu5Ln2C10PkTAzP%2fzdcCzeWljqP6PmkPm9qneQMD0R%2fAHqQ91%2f6s6qvhHw9h5AtO4fYZI%2bI7bAXb%2btFpbBLy%2fdobW1Mt0B3MDvR3ymRIgQBMTx2fwTwPMhU6apaIhGqmd%2fwEqflxxbsmGNuO%2ftNh8ZKkgAju2CX5K31ysmxYsNKPbzZKXyOga798DKodX%2bxsAUOrETZvDXEZfAiqBxnjmNdxXbUhlf9QHGko%2f4NAUUiMHNFesf%2b3bvQi5j7p82echm98oRPVDP1Ga1Yix8Fuv4JrfuL4PKtPODvTHHECVuWlRPT&c=ato&c=ATO%20GO&c=&c=&c=&c=&c=&c="
      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:1972
      • C:\Program Files (x86)\ScreenConnect Client (2d061b84bcbdb211)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (2d061b84bcbdb211)\ScreenConnect.WindowsClient.exe" "RunRole" "c2ddf665-329b-43eb-b4a5-43c48a0b88fc" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5584

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5853aa.rbs

          • Path C:\Config.Msi\e5853aa.rbs
          • Size 214KB
          • SHA256 f0e8f4e025399a35ec0a7eeb98949e14e7dae406f0f8692ddc1f0f9c25cce778
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (2d061b84bcbdb211)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2d061b84bcbdb211)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2d061b84bcbdb211)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (2d061b84bcbdb211)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2d061b84bcbdb211)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2d061b84bcbdb211)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2d061b84bcbdb211)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (2d061b84bcbdb211)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (2d061b84bcbdb211)\system.config
          • Size 970B
          • SHA256 c8888f572582139b1434312341fd1f974d9666f10bd9939553c6f306d1b31074
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 187b6e2163bda774ecdc0297009ad3b3a7f41e04f4c844d47cc0a691c61da13e
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 6d2d75d1a6eb0fe58611d3cc961aa193da86ee077c98ba511db3c8316ad5d35e
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 d1c6ff691706ef924b496f5f9bff44d2626b8da1e16fbf62b22417726e969d4f
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 02c6d2e41086abad510adc98a5b9e22b96756033b2e18e15cd369bf3a31e4311
          • MD5 SHA1 SHA512 TLSH

          rundll32.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\rundll32.exe.log
          • Size 746B
          • SHA256 ddebb6b1094dbef9e96754a74ebd4761d857864c9bd0b5f20a97259a6d7c8fe0
          • MD5 SHA1 SHA512 TLSH

          MSI952.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI952.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI952.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI952.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI952.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI952.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSID6A.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID6A.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI55CD.tmp

          • Path C:\Windows\Installer\MSI55CD.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5853a9.msi

          • Path C:\Windows\Installer\e5853a9.msi
          • Size 9.8MB
          • SHA256 50a8e2671f37ae9e4e8be32e082348caefac168668cc37605e34bb2947b116a9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          erdge1xi.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (2d061b84bcbdb211)\erdge1xi.newcfg
          • Size 883B
          • SHA256 5d20ec76f4ab9daae03cbecc7876511ba4034944b07b9626d8e208b16cd390c4
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (2d061b84bcbdb211)\user.config
          • Size 520B
          • SHA256 b0321654f2e0940c7293ce0d8c0fc1f2c28a89446899f194b43e78d41f25eab9
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (2d061b84bcbdb211)\user.config
          • Size 683B
          • SHA256 a12458ecbb24496eb660c41f3d075b937f5522130bf037744971a0fedeeea059
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 3474d60a3ce431c3029a6dc79a836fb5cbd1f92043916bd1f42c539e3e6049f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {8ab76513-bd9d-4cb4-ba02-922fede588b0}_OnDiskSnapshotProp

          • Path \??\Volume{12d9ef41-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{8ab76513-bd9d-4cb4-ba02-922fede588b0}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 09b62d78e3840acf85f9f0f807ea10a957ce40a1e95fa11740d6e2d1e55156f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1972-202-0x0000000003F60000-0x0000000004036000-memory.dmp

          memory/1972-198-0x0000000003D80000-0x0000000003E12000-memory.dmp

          memory/1972-180-0x0000000003A00000-0x0000000003A50000-memory.dmp

          memory/1972-163-0x00000000038E0000-0x0000000003974000-memory.dmp

          memory/1972-197-0x0000000003AC0000-0x0000000003B2C000-memory.dmp

          memory/1972-167-0x0000000003B30000-0x0000000003CE0000-memory.dmp

          memory/1972-200-0x0000000003A50000-0x0000000003A91000-memory.dmp

          memory/1972-157-0x00000000036B0000-0x00000000036CA000-memory.dmp

          memory/5304-74-0x0000000004C10000-0x0000000004C38000-memory.dmp

          memory/5584-205-0x00000000009C0000-0x0000000000A6E000-memory.dmp

          memory/5584-218-0x0000000002D70000-0x0000000002DDC000-memory.dmp

          memory/5584-219-0x000000001B990000-0x000000001BA24000-memory.dmp

          memory/5584-220-0x000000001BBE0000-0x000000001BD90000-memory.dmp

          memory/5584-221-0x0000000002D00000-0x0000000002D1A000-memory.dmp

          memory/5584-222-0x000000001CFD0000-0x000000001D156000-memory.dmp

          memory/5592-41-0x0000000004D00000-0x0000000004EB0000-memory.dmp

          memory/5592-37-0x0000000004AB0000-0x0000000004B44000-memory.dmp

          memory/5592-33-0x0000000002660000-0x000000000266C000-memory.dmp

          memory/5592-42-0x0000000005460000-0x0000000005A04000-memory.dmp

          memory/5592-29-0x0000000002620000-0x000000000264E000-memory.dmp