Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    28/07/2026, 00:25

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260728-aq2dpsvbma
  • SHA256 d49ebf2e9b0b5df3255b60db1c2762934c0b7cfea2bee3476c484523ca27aa52
  • 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 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 10 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.

  • 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 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⤵
    • 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:5624
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 51A8C445A85C889A0CADDDDFD5D076B9 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3692
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIB36.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240651296 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1136
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI1048.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240652359 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3044
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI174E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240654218 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1080
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3536
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding BB8A1CAF3E5526AE9BA966C56D6355FA
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:240
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 876A36832245EB59AEC8630179F43514 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:3964
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5972
    • C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-tkvdz2-relay.screenconnect.com&p=443&s=3f043027-48f7-4ba6-8e57-7d9e5ff4594f&k=BgIAAACkAABSU0ExAAgAAAEAAQAxyschgmzLC2nqhmJdf5lfbax2L89Xcpa3fn2ybWeQEZdEvxaBz1iUmZVvCNz8C1jsMKYmdVxic70RbgBCWihSq2EL%2fzuR22Lg1TE%2bjbGUTyvsre3Q3AgZlZ8vIgQaTJmRJ577vr2dfFxGFUg9ufZMqmZRv%2fGh95YSckjE8rsTFNcFxXPYQUk7dIY0w0Efjjv4FTl%2fQVeSgh%2blh5ec0ExHnNjeI2XNkEi%2bS3xXwKow2Gy70wPXwHlDD5p%2bXmmr1Sq1g7dV0pCLiwJTrl9oPhmgr5um0pZXe1BTDxBNJwTaIkavggLVtLk9cXUSvInNiPih1cLHVQ3gkF1awIk%2fjSjE"
      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:5788
      • C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.WindowsClient.exe" "RunRole" "a00eac51-eb47-4351-88e1-b922e7e43b55" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2632
      • C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.WindowsClient.exe" "RunRole" "cac5f2b9-d407-462f-a81a-a1010c53f17f" "System"
        2⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:5944

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e585ddb.rbs

          • Path C:\Config.Msi\e585ddb.rbs
          • Size 214KB
          • SHA256 ca7658888ff3f17a71dbbe660bb4628fbedaf53f89eb885b7b82056701bfb95a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (42907a163a530f6b)\system.config
          • Size 960B
          • SHA256 c36f42f04e9d43be759e2bfad3094e421c0ec5d15ab9654135cad3cdd01d35d1
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 e482710d27516766650249885dde7c89f2b9acf7954765f032367f67848ebb6b
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 7871ecf32071c6954d6a5e42251773bc12b95064ba53e0a9c0773d9a9dcd1dc0
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 306118772f8dd73b2d1540aab3b7787f5460756a6b4f1d8458ef6a19db9a0c11
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 af3817287eb12c52e512f6080436028ca7f8f332603167f1c74f82906c3a122e
          • 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

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1048.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1048.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIB36.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB36.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB36.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB36.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB36.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB36.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI5FDF.tmp

          • Path C:\Windows\Installer\MSI5FDF.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e585dda.msi

          • Path C:\Windows\Installer\e585dda.msi
          • Size 9.8MB
          • SHA256 d49ebf2e9b0b5df3255b60db1c2762934c0b7cfea2bee3476c484523ca27aa52
          • MD5 SHA1 SHA512 SSDEEP TLSH

          1c13l0zu.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (42907a163a530f6b)\1c13l0zu.newcfg
          • Size 882B
          • SHA256 9c41d8b3ce2c5ec5b61bbe70eb73e143d2176ea5add267bd1281074a103d3409
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (42907a163a530f6b)\user.config
          • Size 683B
          • SHA256 f1166e00801fe6acabc8058358c01184384f042e2881ad4c7878ccf293e03f7f
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (42907a163a530f6b)\user.config
          • Size 520B
          • SHA256 afbeaad980122b079c59c49fae67327b5daf1b20ade33d00e43608ee13e1fc8f
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 7d1723422efebaffeb02215eafc19980e3538cb05d09d3f3fc9c93536362686a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {6e59afc0-017f-4aac-bc95-f21c162d089f}_OnDiskSnapshotProp

          • Path \??\Volume{12d9ef41-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{6e59afc0-017f-4aac-bc95-f21c162d089f}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 b6931bd2e4f12c4c30f8df3153a57c9645fc1b5b1d4aea251dda554204aa4790
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1136-27-0x00000000031B0000-0x00000000031DE000-memory.dmp

          memory/1136-40-0x0000000006030000-0x00000000065D4000-memory.dmp

          memory/1136-39-0x00000000058D0000-0x0000000005A80000-memory.dmp

          memory/1136-31-0x00000000031E0000-0x00000000031EC000-memory.dmp

          memory/1136-35-0x00000000055E0000-0x0000000005674000-memory.dmp

          memory/2632-221-0x000000001D1A0000-0x000000001D326000-memory.dmp

          memory/2632-219-0x000000001BDB0000-0x000000001BF60000-memory.dmp

          memory/2632-217-0x000000001BB60000-0x000000001BBF4000-memory.dmp

          memory/2632-216-0x000000001B6F0000-0x000000001B75C000-memory.dmp

          memory/2632-215-0x0000000000B40000-0x0000000000BEE000-memory.dmp

          memory/2632-220-0x0000000002C60000-0x0000000002C7A000-memory.dmp

          memory/3044-72-0x0000000004F30000-0x0000000004F58000-memory.dmp

          memory/5788-161-0x0000000004760000-0x00000000047F4000-memory.dmp

          memory/5788-200-0x0000000004F10000-0x0000000004FE6000-memory.dmp

          memory/5788-198-0x0000000004BB0000-0x0000000004BF1000-memory.dmp

          memory/5788-196-0x0000000004D30000-0x0000000004DC2000-memory.dmp

          memory/5788-195-0x0000000004C20000-0x0000000004C8C000-memory.dmp

          memory/5788-178-0x0000000004B60000-0x0000000004BB0000-memory.dmp

          memory/5788-165-0x00000000049B0000-0x0000000004B60000-memory.dmp

          memory/5788-155-0x0000000004550000-0x000000000456A000-memory.dmp