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Analysis

  • max time kernel
    14s
  • max time network
    27s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/02/2023, 22:33

Errors

Reason
Machine shutdown

General

  • Target

  • Size

    6.7MB

  • MD5

    f2b7074e1543720a9a98fda660e02688

  • SHA1

    1029492c1a12789d8af78d54adcb921e24b9e5ca

  • SHA256

    4ea1f2ecf7eb12896f2cbf8683dae8546d2b8dc43cf7710d68ce99e127c0a966

  • SHA512

    73f9548633bc38bab64b1dd5a01401ef7f5b139163bdf291cc475dbd2613510c4c5e4d7702ecdfa74b49f3c9eaed37ed23b9d8f0064c66123eb0769c8671c6ff

  • SSDEEP

    3072:eaLA1++iCeFj0im6X/AXpT8vVMCcHVcdhghUuz1o9Y:fLJlC6j0CX4XmvWHVcd62uO9

Malware Config

Signatures

  • Disables Task Manager via registry modification
  • Enumerates connected drives 3 TTPs 24 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). Likely ransomware behaviour.

  • Kills process with taskkill 2 IoCs
  • Modifies registry class 2 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\[email protected]
    "C:\Users\Admin\AppData\Local\Temp\[email protected]"
    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:3944
    • 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:2360
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im explorer.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4912
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im taskmgr.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3324
      • C:\Windows\SysWOW64\Wbem\WMIC.exe
        wmic useraccount where name='Admin' set FullName='UR NEXT'
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1104
      • C:\Windows\SysWOW64\Wbem\WMIC.exe
        wmic useraccount where name='Admin' rename 'UR NEXT'
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4192
      • C:\Windows\SysWOW64\shutdown.exe
        shutdown /f /r /t 0
        3⤵
          PID:3628
    • C:\Windows\system32\LogonUI.exe
      "LogonUI.exe" /flags:0x4 /state0:0xa39f0055 /state1:0x41c64e6d
      1⤵
        PID:4692

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\one.rtf

        Filesize

        403B

        MD5

        6fbd6ce25307749d6e0a66ebbc0264e7

        SHA1

        faee71e2eac4c03b96aabecde91336a6510fff60

        SHA256

        e152b106733d9263d3cf175f0b6197880d70acb753f8bde8035a3e4865b31690

        SHA512

        35a0d6d91178ec10619cf4d2fd44d3e57aa0266e1779e15b1eef6e9c359c77c384e0ffe4edb2cde980a6847e53f47733e6eacb72d46762066b3541dee3d29064

      • C:\Users\Admin\AppData\Local\Temp\rniw.exe

        Filesize

        76KB

        MD5

        9232120b6ff11d48a90069b25aa30abc

        SHA1

        97bb45f4076083fca037eee15d001fd284e53e47

        SHA256

        70faa0e1498461731f873d3594f20cbf2beaa6f123a06b66f9df59a9cdf862be

        SHA512

        b06688a9fc0b853d2895f11e812c48d5871f2793183fda5e9638ded22fc5dc1e813f174baedc980a1f0b6a7b0a65cd61f29bb16acc6dd45da62988eb012d6877

      • C:\Users\Admin\AppData\Local\Temp\text.txt

        Filesize

        396B

        MD5

        9037ebf0a18a1c17537832bc73739109

        SHA1

        1d951dedfa4c172a1aa1aae096cfb576c1fb1d60

        SHA256

        38c889b5d7bdcb79bbcb55554c520a9ce74b5bfc29c19d1e4cb1419176c99f48

        SHA512

        4fb5c06089524c6dcd48b6d165cedb488e9efe2d27613289ef8834dbb6c010632d2bd5e3ac75f83b1d8024477ebdf05b9e0809602bbe1780528947c36e4de32f

      • C:\Users\Admin\AppData\Local\Temp\windl.bat

        Filesize

        771B

        MD5

        a9401e260d9856d1134692759d636e92

        SHA1

        4141d3c60173741e14f36dfe41588bb2716d2867

        SHA256

        b551fba71dfd526d4916ae277d8686d83fff36d22fcf6f18457924a070b30ef7

        SHA512

        5cbe38cdab0283b87d9a9875f7ba6fa4e8a7673d933ca05deddddbcf6cf793bd1bf34ac0add798b4ed59ab483e49f433ce4012f571a658bc0add28dd987a57b6

      • memory/3944-156-0x0000000009A60000-0x0000000009E60000-memory.dmp

        Filesize

        4.0MB

      • memory/3944-159-0x0000000009A60000-0x0000000009E60000-memory.dmp

        Filesize

        4.0MB

      • memory/3944-133-0x0000000005960000-0x0000000005F04000-memory.dmp

        Filesize

        5.6MB

      • memory/3944-140-0x0000000009BC0000-0x0000000009BF8000-memory.dmp

        Filesize

        224KB

      • memory/3944-161-0x0000000009A60000-0x0000000009E60000-memory.dmp

        Filesize

        4.0MB

      • memory/3944-154-0x0000000009A60000-0x0000000009E60000-memory.dmp

        Filesize

        4.0MB

      • memory/3944-155-0x0000000009A60000-0x0000000009E60000-memory.dmp

        Filesize

        4.0MB

      • memory/3944-132-0x0000000000130000-0x00000000007DE000-memory.dmp

        Filesize

        6.7MB

      • memory/3944-157-0x0000000009A60000-0x0000000009E60000-memory.dmp

        Filesize

        4.0MB

      • memory/3944-158-0x0000000009A60000-0x0000000009E60000-memory.dmp

        Filesize

        4.0MB

      • memory/3944-141-0x0000000009830000-0x000000000983E000-memory.dmp

        Filesize

        56KB

      • memory/3944-160-0x0000000009A60000-0x0000000009E60000-memory.dmp

        Filesize

        4.0MB

      • memory/3944-162-0x0000000009A60000-0x0000000009E60000-memory.dmp

        Filesize

        4.0MB