Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    06/07/2026, 12:19

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 14.3MB
  • Sample260706-phmmxae131
  • SHA256 0effe62d201498072705f1ad56f13bd1ba642380ea131b9ea83a6235b0ddc461
  • 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.

  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops file in System32 directory 10 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 17 IoCs
  • Drops file in Windows directory 13 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 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⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4100
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\bbe1694f4393c6ac\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
      PID:1128
  • 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:3156
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding EB164B9D39A9A9E68D479AF8569DE57E C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4644
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI7A2C.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240679625 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4380
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI7EF0.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240680718 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4140
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI85E6.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240682546 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4832
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2804
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 52EF9E216491B8598155CCD7E2E18F9B
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3552
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 87B24F89EA35C69AB7D9464A835CED76 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1040
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3876
    • C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-icc2hi-relay.screenconnect.com&p=443&s=dcd3338f-b9ee-4093-a010-2d914e6fa735&k=BgIAAACkAABSU0ExAAgAAAEAAQAJDHZEg9jJtP%2blIpaQISytmZmxxmoVuKc1RtQqN9vu8pNmmG5FPpQr9egqkNxSBdh2%2fjgoPgUTIf0eKv2BA7BrIm3ZCzOMAHNPAkUAB%2fsVBJoEwcH2Zyi9NEAlWR3w7EZ9lPukCbtRZAG92dkn6UBMRiAJFutTM%2ffL7iRM9gnjAPvTr8C74JtNZ8ylNtyRVbb9rQYGvIO4hxwO5hIAPJrnJ2IKZM5QFsCCk%2frqNjID6KLercUmB0w6xfERMEHiy5Nuhjb8tv3CbKxjafzp1IeCrPplo5HkJSvIH%2fqVcy%2fAvGKzp2BIQS9HkNncoguoRwfSc8bHJtrmWkCswtLAdIuz&c=Newpark%20Drilling%20Fluids&c=Thailand&c=&c=&c=&c=&c=&c="
      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:1532
      • C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.WindowsClient.exe" "RunRole" "8abf6d68-0977-4235-85bf-896ad9221752" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3116
      • C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.WindowsClient.exe" "RunRole" "4c11fa18-d434-4d44-a7fe-f8c9837b6fc5" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:1288

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e58c59e.rbs

          • Path C:\Config.Msi\e58c59e.rbs
          • Size 214KB
          • SHA256 a6061cc05a6bd68d4206af16f64849e39a88ece4177fa5233817f5a908c91356
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\app.config
          • Size 370B
          • SHA256 78d10a23cfb3fa11aee073c7f9ee5dad6af4fa792fb3ade9ea7e988fa2afbdb4
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (bbe1694f4393c6ac)\system.config
          • Size 958B
          • SHA256 9429bf581e29a7110ca710e01e36382ccede5020ffa96b2d52777207ed373ade
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 1848555b5d074c2596f1d4e553a025b544a5eb1620195e84512be6fd5cbac65c
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 6c763e720f5cb77044eeabb5c55a774dd33b41361a7094a7242576c775c39b8b
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 25b31870dfd8b7470f0378a1cea2cd53fbe78a0cb8b4e7a4fa65050bc4362b5e
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 ba413a01eb027f2f7422816e6ded033e38db6bfae5f1557ded350c43b0acc136
          • 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

          MSI7A2C.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7A2C.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7A2C.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7A2C.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7A2C.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7A2C.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7EF0.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7EF0.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\bbe1694f4393c6ac\ScreenConnect.ClientSetup.msi
          • Size 11.8MB
          • SHA256 72d0b2d72179c90c2f6fa499e7d7c204c9f6ab77b914735c90b3d449482f9417
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIC8AB.tmp

          • Path C:\Windows\Installer\MSIC8AB.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          fkrrpwpf.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (bbe1694f4393c6ac)\fkrrpwpf.newcfg
          • Size 882B
          • SHA256 8e834831ad97498980bb84f3c7b8faad28b6874d3e83dc13da47a282a64dc8d4
          • MD5 SHA1 SHA512 TLSH

          frhuzl22.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (bbe1694f4393c6ac)\frhuzl22.newcfg
          • Size 683B
          • SHA256 947c6efca9d31e5d1f88d21180e730851d2cfe8c99148a2db4a21a9b5d2c65b0
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (bbe1694f4393c6ac)\user.config
          • Size 520B
          • SHA256 98cb1c3cf9d4fb2f266714913b93abb9da7dff05b068cf6565e10a07935817bf
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 1b3bcd4a93694baaf7f2e57fe902d24969d318975e5b0759ca01e6da7f9dbb9f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {6c527827-4907-4777-a6ef-b4b8e17adc90}_OnDiskSnapshotProp

          • Path \??\Volume{73216430-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{6c527827-4907-4777-a6ef-b4b8e17adc90}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 ea988a865edbc63b5bf50e7c53d38697ad561784d26d6fbf4c5f9ae420fa3837
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1532-214-0x0000000004800000-0x0000000004841000-memory.dmp

          memory/1532-174-0x00000000046B0000-0x0000000004744000-memory.dmp

          memory/1532-215-0x0000000004D30000-0x0000000004E06000-memory.dmp

          memory/1532-212-0x0000000004B50000-0x0000000004BE2000-memory.dmp

          memory/1532-211-0x0000000004870000-0x00000000048DC000-memory.dmp

          memory/1532-168-0x0000000001FE0000-0x0000000001FFA000-memory.dmp

          memory/1532-192-0x00000000047B0000-0x0000000004800000-memory.dmp

          memory/1532-178-0x0000000004900000-0x0000000004AB0000-memory.dmp

          memory/3116-230-0x000000001B200000-0x000000001B26C000-memory.dmp

          memory/3116-229-0x00000000005E0000-0x000000000068E000-memory.dmp

          memory/3116-235-0x000000001C880000-0x000000001CA06000-memory.dmp

          memory/3116-234-0x0000000000D40000-0x0000000000D5A000-memory.dmp

          memory/3116-232-0x000000001B670000-0x000000001B704000-memory.dmp

          memory/3116-233-0x000000001B8C0000-0x000000001BA70000-memory.dmp

          memory/4100-1-0x0000000001BB0000-0x0000000001BB8000-memory.dmp

          memory/4100-9-0x00000000035D0000-0x00000000035E0000-memory.dmp

          memory/4100-0-0x00000000035D0000-0x00000000035E0000-memory.dmp

          memory/4100-7-0x0000000005B00000-0x0000000005CB0000-memory.dmp

          memory/4100-4-0x0000000001C20000-0x0000000001C2C000-memory.dmp

          memory/4100-2-0x00000000035D0000-0x00000000035E0000-memory.dmp

          memory/4100-6-0x0000000005AD0000-0x0000000005AF8000-memory.dmp

          memory/4100-3-0x00000000035D0000-0x00000000035E0000-memory.dmp

          memory/4100-5-0x0000000005A40000-0x0000000005AD4000-memory.dmp

          memory/4100-8-0x0000000006260000-0x0000000006804000-memory.dmp

          memory/4140-84-0x0000000004A80000-0x0000000004AA8000-memory.dmp

          memory/4380-44-0x00000000032F0000-0x00000000032FC000-memory.dmp

          memory/4380-52-0x0000000005AD0000-0x0000000005C80000-memory.dmp

          memory/4380-48-0x0000000005880000-0x0000000005914000-memory.dmp

          memory/4380-40-0x0000000005690000-0x00000000056BE000-memory.dmp