Overview

overview

10

Static

static

3

e_win.exe

windows11-ltsc_2024-x64

10

Analysis

  • user interaction
    yes
  • max time kernel
    54s
  • max time network
    17s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    22/08/2026, 16:19

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General

  • Target
    e_win.exe
  • Size 79KB
  • Sample260822-tspx8shr4x
  • SHA256 7237a914c8c2e1913e1a7c5a2907fe461b30ec71bfc37de7d3d2d663dd58fb35
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasiondiscoveryexecutionbabukimpactransomware

Malware Config

Signatures

  • Family: Babuk Locker

    RaaS first seen in 2021 initially called Vasa Locker.

    ransomwarebabuk
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (173) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • 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.

    execution
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Checks SCSI registry key(s) 3 TTPs 3 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.

  • Interacts with shadow copies 3 TTPs 2 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of FindShellTrayWindow 53 IoCs
  • Suspicious use of SendNotifyMessage 53 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\e_win.exe
    "C:\Users\Admin\AppData\Local\Temp\e_win.exe"
    1⤵
    • Enumerates connected drives
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3704
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:1316
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:4792
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:8
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:3004
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3296
  • C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Public\Desktop\How To Restore Your Files.txt
    1⤵
      PID:3112
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /4
      1⤵
      • Checks SCSI registry key(s)
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:6012
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:4248

      Network

            MITRE ATT&CK Enterprise v16

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            Downloads

            How To Restore Your Files.txt
            • Path C:\Users\Admin\How To Restore Your Files.txt
            • Size 19B
            • SHA256 67d3f3ff46c53cf84910590dacfac2a96688c69881c269e6dc91da0a66f849cb
            • MD5 SHA1 SHA512
            Submit Download

            memory/6012-239-0x00000204D5510000-0x00000204D5511000-memory.dmp
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            memory/6012-237-0x00000204D5510000-0x00000204D5511000-memory.dmp
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            memory/6012-248-0x00000204D5510000-0x00000204D5511000-memory.dmp
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            memory/6012-245-0x00000204D5510000-0x00000204D5511000-memory.dmp
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            memory/6012-244-0x00000204D5510000-0x00000204D5511000-memory.dmp
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            memory/6012-247-0x00000204D5510000-0x00000204D5511000-memory.dmp
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            memory/6012-246-0x00000204D5510000-0x00000204D5511000-memory.dmp
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            memory/6012-243-0x00000204D5510000-0x00000204D5511000-memory.dmp
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