Analysis

  • max time kernel
    148s
  • max time network
    145s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/07/2026, 23:15

General

  • Target
    cds.msi
  • Size 2.2MB
  • Sample260730-28ndcastbv
  • SHA256 86f1e8695d3e2acc6fddf1655899b9bd7df5b0245f7dd76b4c23fe44e16af757
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Windows directory 12 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 6 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\cds.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:2252
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3308
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1776
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe" /d /s /c ""C:\Users\Admin\AppData\Local\Broadcom\NetLink Helper\bootstrap_3201.cmd""
        2⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:788
        • C:\Windows\System32\where.exe
          where conhost.exe
          3⤵
            PID:4296
          • C:\Windows\System32\conhost.exe
            "C:\Windows\System32\conhost.exe" --headless cmd.exe /c "C:\Users\Admin\AppData\Local\Broadcom\NetLink Helper\bootstrap_3201.cmd" /launched
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:1840
            • C:\Windows\System32\cmd.exe
              cmd.exe /c "C:\Users\Admin\AppData\Local\Broadcom\NetLink Helper\bootstrap_3201.cmd" /launched
              4⤵
              • Executes a command shell one-liner
              • Suspicious use of WriteProcessMemory
              PID:6088
              • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe
                "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe" "C:\Users\Admin\AppData\Local\Broadcom\NetLink Helper\NewtonsoftJson.csproj" /nologo /v:q
                5⤵
                • Suspicious use of NtSetInformationThreadHideFromDebugger
                PID:3372
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Checks SCSI registry key(s)
        • Suspicious use of AdjustPrivilegeToken
        PID:572
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k GPSvcGroup
        1⤵
          PID:4888

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              e59504a.rbs

              • Path C:\Config.Msi\e59504a.rbs
              • Size 9KB
              • SHA256 1d0540c56d03bfe239b0cdafcd6427342cf319d0fd74e6d3cec997da3e21a8dd
              • MD5 SHA1 SHA512 SSDEEP TLSH

              Internal.props

              • Path C:\Users\Admin\AppData\Local\Broadcom\NetLink Helper\Internal.props
              • Size 262KB
              • SHA256 4952eee846ffdc2935359dd58a50388187e31686e7c39baa4e323cbec04c8bae
              • MD5 SHA1 SHA512 SSDEEP TLSH

              NewtonsoftJson.Internal.targets

              • Path C:\Users\Admin\AppData\Local\Broadcom\NetLink Helper\NewtonsoftJson.Internal.targets
              • Size 535KB
              • SHA256 4044d32f895e13f0877a1942a90dc18946f6cbfca98bdbd1e34545db09daf059
              • MD5 SHA1 SHA512 SSDEEP TLSH

              NewtonsoftJson.csproj

              • Path C:\Users\Admin\AppData\Local\Broadcom\NetLink Helper\NewtonsoftJson.csproj
              • Size 8.5MB
              • SHA256 cd905db480bac6aa4826877a5359a5e31d26b4fc5767ac8943bdd6c010b7aa45
              • MD5 SHA1 SHA512 SSDEEP TLSH

              NewtonsoftJson.csproj.user

              • Path C:\Users\Admin\AppData\Local\Broadcom\NetLink Helper\NewtonsoftJson.csproj.user
              • Size 637KB
              • SHA256 233a1a9345ee97a03a314692fa69c97ae32d7177f20cd4d4caafa6797cdfb983
              • MD5 SHA1 SHA512 SSDEEP TLSH

              bootstrap_3201.cmd

              • Path C:\Users\Admin\AppData\Local\Broadcom\NetLink Helper\bootstrap_3201.cmd
              • Size 1KB
              • SHA256 bd01632b8beb86954cedb4414a3a8c36e71ef4e6580e229554f7aaec653bc3ef
              • MD5 SHA1 SHA512 TLSH

              e595049.msi

              • Path C:\Windows\Installer\e595049.msi
              • Size 2.2MB
              • SHA256 86f1e8695d3e2acc6fddf1655899b9bd7df5b0245f7dd76b4c23fe44e16af757
              • MD5 SHA1 SHA512 SSDEEP TLSH

              metadata-2

              • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
              • Size 26.1MB
              • SHA256 063e9e62ce1cd3ce78ee3d6ace584d7eed12eb962fa0d6144bd6496e1551ae30
              • MD5 SHA1 SHA512 SSDEEP TLSH

              {0a6deeb0-db57-4009-bf10-19dca5c28f9d}_OnDiskSnapshotProp

              • Path \??\Volume{cba08e50-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{0a6deeb0-db57-4009-bf10-19dca5c28f9d}_OnDiskSnapshotProp
              • Size 6KB
              • SHA256 c8d78f3db432cfdd1fd2d65416fdf735c3a591bad390c3fb0932629bc0dfbbda
              • MD5 SHA1 SHA512 SSDEEP TLSH

              memory/3372-28-0x0000012E52270000-0x0000012E522A0000-memory.dmp

              memory/3372-33-0x0000012E6AFC0000-0x0000012E6B078000-memory.dmp

              memory/3372-27-0x0000012E6ACE0000-0x0000012E6AE3A000-memory.dmp

              memory/3372-26-0x0000012E50A30000-0x0000012E50A4A000-memory.dmp

              memory/3372-39-0x0000012E6A3B0000-0x0000012E6A688000-memory.dmp

              memory/3372-40-0x0000012E52340000-0x0000012E5236D000-memory.dmp

              memory/3372-25-0x0000012E50570000-0x0000012E505AE000-memory.dmp