Analysis

  • max time kernel
    30s
  • max time network
    33s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    28/06/2026, 23:17

General

  • Target
    bootstrapper/bootstrapper.msi
  • Size 25.3MB
  • Sample260628-29sdpag13k
  • SHA256 221a35020d7e9107469ff05d71a9f6bc470ba90e06e8bef0dc7a7057a88ccd2b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Badlisted process makes network request 1 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.

  • Drops file in Windows directory 12 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • 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 48 IoCs

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

  • Detects videocard installed 1 TTPs 2 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Suspicious behavior: EnumeratesProcesses 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 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\bootstrapper\bootstrapper.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:6952
  • 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:5748
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4784
    • C:\Windows\system32\wscript.exe
      wscript.exe //E:vbs //B //Nologo "qjCIbfZULWsvs"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:6664
      • C:\Users\Admin\AppData\Local\8253lRcg\yBVdgTz.exe
        "C:\Users\Admin\AppData\Local\8253lRcg\yBVdgTz.exe" "C:\Users\Admin\AppData\Local\8253lRcg\OOlWhCtjSdzrgNidOF"
        3⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Suspicious use of WriteProcessMemory
        PID:948
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /d /s /c "wmic path win32_VideoController get name /format:list"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:5924
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic path win32_VideoController get name /format:list
            5⤵
            • Detects videocard installed
            • Suspicious behavior: EnumeratesProcesses
            PID:5476
        • C:\Users\Admin\AppData\Local\8253lRcg\yBVdgTz.exe
          C:\Users\Admin\AppData\Local\8253lRcg\yBVdgTz.exe C:\Users\Admin\AppData\Local\8253lRcg\ldoUSSRkzf
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:6136
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /d /s /c "wmic path win32_VideoController get name /format:list"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:4548
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic path win32_VideoController get name /format:list
              6⤵
              • Detects videocard installed
              • Suspicious behavior: EnumeratesProcesses
              PID:4116
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:5812

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        e58a024.rbs

        • Path C:\Config.Msi\e58a024.rbs
        • Size 9KB
        • SHA256 6f6a5bfc9b1f1a7fbd5889d503cb6d0b9885a4e5789c2ba76b7e2a6074c13060
        • MD5 SHA1 SHA512 SSDEEP TLSH

        OOlWhCtjSdzrgNidOF

        • Path C:\Users\Admin\AppData\Local\8253lRcg\OOlWhCtjSdzrgNidOF
        • Size 67KB
        • SHA256 28982f2af632b0534a3688a6a2b290082329604c48643f51d461a7fd0bfaf730
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ldoUSSRkzf

        • Path C:\Users\Admin\AppData\Local\8253lRcg\ldoUSSRkzf
        • Size 2.0MB
        • SHA256 69277721edc579c4848026b019949be3ec1cd76a22dff77b3752c1b550330fc3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ldoUSSRkzf

        • Path C:\Users\Admin\AppData\Local\8253lRcg\ldoUSSRkzf
        • Size 2.0MB
        • SHA256 24473366660158a264c6e1765e4058b19225825711582d90b492dc8a2c7b0723
        • MD5 SHA1 SHA512 SSDEEP TLSH

        qjCIbfZULWsvs

        • Path C:\Users\Admin\AppData\Local\8253lRcg\qjCIbfZULWsvs
        • Size 349B
        • SHA256 abef09d7d1bcaf188f6f3101197208b99711cef793fbd1424b5953cc0e0c93c9
        • MD5 SHA1 SHA512 TLSH

        96e0cxvsc6b3busd.node

        • Path C:\Users\Admin\AppData\Local\Temp\96e0cxvsc6b3busd.node
        • Size 598KB
        • SHA256 db48c41a99c4f74edf3bfb42c366b456cd3bab5bddf45afe3cbaceaf56ecb501
        • MD5 SHA1 SHA512 SSDEEP TLSH

        e58a023.msi

        • Path C:\Windows\Installer\e58a023.msi
        • Size 25.3MB
        • SHA256 221a35020d7e9107469ff05d71a9f6bc470ba90e06e8bef0dc7a7057a88ccd2b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        metadata-2

        • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
        • Size 26.1MB
        • SHA256 760607236b2a630b86919033aaa83714c3e28e9068eb195483946a694f49b7d5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {7f522a2a-e3f8-4abc-8526-d5205480cb2b}_OnDiskSnapshotProp

        • Path \??\Volume{6db94efd-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{7f522a2a-e3f8-4abc-8526-d5205480cb2b}_OnDiskSnapshotProp
        • Size 6KB
        • SHA256 6a0110a84a885b03a61f5d6ded9ce0e5c70e05ac4bde2df3b1bc34be6d12c370
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/6136-47-0x000002A525120000-0x000002A525121000-memory.dmp

        memory/6136-46-0x000002A525110000-0x000002A525111000-memory.dmp

        memory/6136-48-0x00007FFAE5770000-0x00007FFAE618A000-memory.dmp

        memory/6136-51-0x00007FFAE5770000-0x00007FFAE618A000-memory.dmp