Analysis

  • max time kernel
    8s
  • max time network
    17s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    12/05/2024, 07:57

Errors

Reason
Machine shutdown

General

  • Target
    MalwareRepository-main/000.exe
  • Size 6.7MB
  • Sample240512-jtkd2aag78
  • SHA256 4ea1f2ecf7eb12896f2cbf8683dae8546d2b8dc43cf7710d68ce99e127c0a966
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Disables Task Manager via registry modification
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Modifies WinLogon 2 TTPs 1 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 2 IoCs
  • Modifies registry class 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MalwareRepository-main\000.exe
    "C:\Users\Admin\AppData\Local\Temp\MalwareRepository-main\000.exe"
    1⤵
    • Enumerates connected drives
    • Modifies WinLogon
    • Sets desktop wallpaper using registry
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5076
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\windl.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4872
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im explorer.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4888
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im taskmgr.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4064
      • C:\Windows\SysWOW64\Wbem\WMIC.exe
        wmic useraccount where name='Admin' set FullName='UR NEXT'
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1884
      • C:\Windows\SysWOW64\Wbem\WMIC.exe
        wmic useraccount where name='Admin' rename 'UR NEXT'
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3824
      • C:\Windows\SysWOW64\shutdown.exe
        shutdown /f /r /t 0
        3⤵
          PID:3060
    • C:\Windows\system32\LogonUI.exe
      "LogonUI.exe" /flags:0x4 /state0:0xa3a14055 /state1:0x41c64e6d
      1⤵
        PID:1848

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            CurrentDatabase_400.wmdb

            • Path C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdb
            • Size 896KB
            • SHA256 a59b13b3eb4b4f53724952ff36503acc752a6bd1fc20c87ec15f812f3e0f3da6
            • MD5 SHA1 SHA512 SSDEEP

            WMSDKNS.XML

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.XML
            • Size 9KB
            • SHA256 cb87767c4a384c24e4a0f88455f59101b1ae7b4fb8de8a5adb4136c5f7ee545b
            • MD5 SHA1 SHA512 SSDEEP

            one.rtf

            • Path C:\Users\Admin\AppData\Local\Temp\one.rtf
            • Size 403B
            • SHA256 e152b106733d9263d3cf175f0b6197880d70acb753f8bde8035a3e4865b31690
            • MD5 SHA1 SHA512

            rniw.exe

            • Path C:\Users\Admin\AppData\Local\Temp\rniw.exe
            • Size 76KB
            • SHA256 70faa0e1498461731f873d3594f20cbf2beaa6f123a06b66f9df59a9cdf862be
            • MD5 SHA1 SHA512 SSDEEP

            windl.bat

            • Path C:\Users\Admin\AppData\Local\Temp\windl.bat
            • Size 771B
            • SHA256 b551fba71dfd526d4916ae277d8686d83fff36d22fcf6f18457924a070b30ef7
            • MD5 SHA1 SHA512

            UR NEXT UR NEXT UR NEXT UR NEXT UR NEXT UR NEXT UR NEXT UR N1XT.txt

            • Path C:\Users\Admin\Desktop\UR NEXT UR NEXT UR NEXT UR NEXT UR NEXT UR NEXT UR NEXT UR N1XT.txt
            • Size 396B
            • SHA256 38c889b5d7bdcb79bbcb55554c520a9ce74b5bfc29c19d1e4cb1419176c99f48
            • MD5 SHA1 SHA512

            memory/5076-22-0x000000000BAF0000-0x000000000BB28000-memory.dmp

            memory/5076-30-0x000000000BD00000-0x000000000BD10000-memory.dmp

            memory/5076-0-0x0000000074F1E000-0x0000000074F1F000-memory.dmp

            memory/5076-26-0x000000000BD30000-0x000000000BD40000-memory.dmp

            memory/5076-29-0x000000000BD30000-0x000000000BD40000-memory.dmp

            memory/5076-28-0x000000000BD30000-0x000000000BD40000-memory.dmp

            memory/5076-27-0x000000000BD30000-0x000000000BD40000-memory.dmp

            memory/5076-33-0x000000000BD30000-0x000000000BD40000-memory.dmp

            memory/5076-34-0x000000000BD00000-0x000000000BD10000-memory.dmp

            memory/5076-32-0x000000000BD30000-0x000000000BD40000-memory.dmp

            memory/5076-11-0x0000000074F10000-0x00000000756C1000-memory.dmp

            memory/5076-35-0x0000000074F10000-0x00000000756C1000-memory.dmp

            memory/5076-31-0x000000000BD00000-0x000000000BD10000-memory.dmp

            memory/5076-23-0x0000000009540000-0x000000000954E000-memory.dmp

            memory/5076-48-0x0000000074F10000-0x00000000756C1000-memory.dmp

            memory/5076-51-0x0000000074F10000-0x00000000756C1000-memory.dmp

            memory/5076-52-0x0000000074F10000-0x00000000756C1000-memory.dmp

            memory/5076-53-0x0000000074F10000-0x00000000756C1000-memory.dmp

            memory/5076-54-0x0000000074F10000-0x00000000756C1000-memory.dmp

            memory/5076-55-0x0000000074F10000-0x00000000756C1000-memory.dmp

            memory/5076-56-0x0000000074F10000-0x00000000756C1000-memory.dmp

            memory/5076-57-0x0000000074F10000-0x00000000756C1000-memory.dmp

            memory/5076-3-0x0000000006100000-0x00000000066A6000-memory.dmp

            memory/5076-2-0x0000000074F10000-0x00000000756C1000-memory.dmp

            memory/5076-1-0x0000000000930000-0x0000000000FDE000-memory.dmp

            memory/5076-865-0x0000000074F10000-0x00000000756C1000-memory.dmp