Analysis

  • max time kernel
    148s
  • max time network
    99s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    17/10/2026, 06:36

General

  • Target
    68993.msi
  • Size 1.4MB
  • Sample261017-hdblhsysf1
  • SHA256 6b7e85d680c5ac84143d471c48626df36fa11c60ce86114e865f629b081649f3
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 6 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Looks up external IP address via web service 1 TTPs 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in Windows directory 12 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

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

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 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\68993.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:4640
  • 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:4912
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4980
      • C:\Windows\System32\MsiExec.exe
        C:\Windows\System32\MsiExec.exe -Embedding 9C8149BA5F04B77BA7947C5E2C266745
        2⤵
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:5460
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\Temp\705546.ps1" "C:\Users\Admin\AppData\Local\Temp\68993.msi"
          3⤵
          • Badlisted process makes network request
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2680
          • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
            "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\5b3mivrn\5b3mivrn.cmdline"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:4948
            • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
              C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESB83A.tmp" "c:\Users\Admin\AppData\Local\Temp\5b3mivrn\CSC601B1D8C7F9B4E799788268BA8663F.TMP"
              5⤵
                PID:4396
            • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
              "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\1ylmfwhv\1ylmfwhv.cmdline"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2388
              • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
                C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESBC80.tmp" "c:\Users\Admin\AppData\Local\Temp\1ylmfwhv\CSCA3E8ED6B23984262862897BC7074F8EE.TMP"
                5⤵
                  PID:2712
            • C:\Windows\System32\PING.EXE
              "C:\Windows\System32\PING.EXE" -n 3 127.0.0.1
              3⤵
              • System Network Configuration Discovery: Internet Connection Discovery
              • Runs ping.exe
              PID:4664
        • C:\Windows\system32\vssvc.exe
          C:\Windows\system32\vssvc.exe
          1⤵
          • Checks SCSI registry key(s)
          • Suspicious use of AdjustPrivilegeToken
          PID:3712
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k GPSvcGroup
          1⤵
            PID:1964

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

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                Downloads

                e59ab0e.rbs

                • Path C:\Config.Msi\e59ab0e.rbs
                • Size 8KB
                • SHA256 539d2e035aad7e47cf827bdf213be1332b9f44d92113143549158a5ef49e17bf
                • MD5 SHA1 SHA512 SSDEEP TLSH

                1ylmfwhv.dll

                • Path C:\Users\Admin\AppData\Local\Temp\1ylmfwhv\1ylmfwhv.dll
                • Size 5KB
                • SHA256 47e67672fa1a909ec1ea2676984b9944404ba32d49fd09fd2c2e0e787f8666d0
                • MD5 SHA1 SHA512 SSDEEP TLSH

                5b3mivrn.dll

                • Path C:\Users\Admin\AppData\Local\Temp\5b3mivrn\5b3mivrn.dll
                • Size 4KB
                • SHA256 3679528a9d5e2e37119da5cc77ff72f758335027277f396125c6027904d32ed2
                • MD5 SHA1 SHA512 SSDEEP TLSH

                705546.ps1

                • Path C:\Users\Admin\AppData\Local\Temp\705546.ps1
                • Size 104KB
                • SHA256 165ff9f6a3e238ecab7e2edd9021e953d09935a0f1c2bed15255a64b681f6cb1
                • MD5 SHA1 SHA512 SSDEEP TLSH

                RESB83A.tmp

                • Path C:\Users\Admin\AppData\Local\Temp\RESB83A.tmp
                • Size 1KB
                • SHA256 07145dc8f8cbc5298b7a21aee8e02d00fc3ed5d727a2931bfaea424db4ce5e2f
                • MD5 SHA1 SHA512 TLSH

                RESBC80.tmp

                • Path C:\Users\Admin\AppData\Local\Temp\RESBC80.tmp
                • Size 1KB
                • SHA256 5a300329d559cc5b1c661d383936d60e2b5d263c851467f5fb97010f89e5034d
                • MD5 SHA1 SHA512 TLSH

                __PSScriptPolicyTest_kx2iqxgx.3ck.ps1

                • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kx2iqxgx.3ck.ps1
                • Size 60B
                • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                • MD5 SHA1 SHA512 TLSH

                e59ab0f.msi

                • Path C:\Windows\Installer\e59ab0f.msi
                • Size 1.4MB
                • SHA256 6b7e85d680c5ac84143d471c48626df36fa11c60ce86114e865f629b081649f3
                • MD5 SHA1 SHA512 SSDEEP TLSH

                metadata-2

                • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
                • Size 26.1MB
                • SHA256 f808c687ae26a03522ddeac55468f1ae2e678e3301a7448ac6d3b5db9ce154cf
                • MD5 SHA1 SHA512 SSDEEP TLSH

                {93900f6a-49e7-4c26-8ceb-b61b3ab78962}_OnDiskSnapshotProp

                • Path \??\Volume{e70967fa-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{93900f6a-49e7-4c26-8ceb-b61b3ab78962}_OnDiskSnapshotProp
                • Size 6KB
                • SHA256 3005ef27c23357249e2b5568fb74373699ca90ae0f2844d884a63c2320385b83
                • MD5 SHA1 SHA512 SSDEEP TLSH

                1ylmfwhv.0.cs

                • Path \??\c:\Users\Admin\AppData\Local\Temp\1ylmfwhv\1ylmfwhv.0.cs
                • Size 5KB
                • SHA256 3edf9ffb6953542f7ac2aa409b347f50c8d81d25c2fb912fa100dcd9e2831612
                • MD5 SHA1 SHA512 SSDEEP TLSH

                1ylmfwhv.cmdline

                • Path \??\c:\Users\Admin\AppData\Local\Temp\1ylmfwhv\1ylmfwhv.cmdline
                • Size 369B
                • SHA256 d91694268af76b5ebb6f039ef4e7b367c1e9b2f76279df499e7101074f2d6625
                • MD5 SHA1 SHA512 TLSH

                CSCA3E8ED6B23984262862897BC7074F8EE.TMP

                • Path \??\c:\Users\Admin\AppData\Local\Temp\1ylmfwhv\CSCA3E8ED6B23984262862897BC7074F8EE.TMP
                • Size 652B
                • SHA256 ed3ad9101efefb575b9e3d4c1e9a8d0bf992f6c88c1b087201b7236072830487
                • MD5 SHA1 SHA512 TLSH

                5b3mivrn.0.cs

                • Path \??\c:\Users\Admin\AppData\Local\Temp\5b3mivrn\5b3mivrn.0.cs
                • Size 2KB
                • SHA256 1cda39a3b1e6ac9bd51f40cf3a02693d471f1dfd0350bcffde7108b75aec6bb6
                • MD5 SHA1 SHA512 TLSH

                5b3mivrn.cmdline

                • Path \??\c:\Users\Admin\AppData\Local\Temp\5b3mivrn\5b3mivrn.cmdline
                • Size 369B
                • SHA256 fa73f4422012c55d2f7e4edbd91e1b00f4d77c5f4cccf4fc3fa9f0400811faba
                • MD5 SHA1 SHA512 TLSH

                CSC601B1D8C7F9B4E799788268BA8663F.TMP

                • Path \??\c:\Users\Admin\AppData\Local\Temp\5b3mivrn\CSC601B1D8C7F9B4E799788268BA8663F.TMP
                • Size 652B
                • SHA256 5a7dae7ff6995af9c0cc7b3b6f6b3c75e31f7178e5d7b68be0c2544a533d8869
                • MD5 SHA1 SHA512 TLSH

                memory/2680-42-0x0000016320B20000-0x0000016320B22000-memory.dmp

                memory/2680-40-0x0000000140000000-0x000000014013E000-memory.dmp

                memory/2680-39-0x00000163209F0000-0x00000163209F8000-memory.dmp

                memory/2680-66-0x0000016321730000-0x00000163217AA000-memory.dmp

                memory/2680-71-0x0000000140000000-0x000000014013E000-memory.dmp

                memory/2680-26-0x0000016320960000-0x0000016320968000-memory.dmp

                memory/2680-6-0x0000016320930000-0x0000016320952000-memory.dmp