Analysis

  • max time kernel
    16s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    09-01-2025 09:24

General

  • Target

    2025-01-09_95be77dac172c472cba318f9876ec444_wannacry.exe

  • Size

    6.3MB

  • MD5

    95be77dac172c472cba318f9876ec444

  • SHA1

    e24fc0a73ff5675a33de6bf033b65fa4b139d85a

  • SHA256

    2dd3144ab294d675eae0290d5b2d385d4d7ddb36e0450b982358a1519ba19fb4

  • SHA512

    4eeefdd69073f33d7369e52a306e812178365322ce26573331c9bfe9b60935e87b1a10b754df7159d87f1767ac945183b178923a53e21b7a5808e31e2af5a0a0

  • SSDEEP

    49152:31WDsGsL5TCvRc46CCGZuoKzzkvhctESbe7t0G8IfPIu3GTJ:

Malware Config

Extracted

Path

C:\ProgramData\Adobe\Updater6\read_it.txt

Ransom Note
Don't worry, you can return all your files! All your files like documents, photos, databases and other important files have been encrypted with military-grade encryption. What guarantees do we give you? You can send 3 of your encrypted files and we will decrypt them for free. You must follow these steps to decrypt your files: 1) Write on our telegram: @RansowHacking 2) Get Bitcoin (you must pay for decryption in any cryptocurrency below: After paying the amount of 500usdt, we will send you the tool that will decrypt all your files.) BTC: bc1qngsfpztnqlvs2jktxdkh53j5mgrty3s003tas5 ETH: 0x75427fC1b7830528748F914951bBF1D6403d072e XMR: 0x082b5a11e1c727F6be2A4a3c1028cD6797370786 TRC20: TB5nxv8hUKRvpfeHjgnNaCEbwXfja73gMb ============================ {PT-BT}============================== Não se preocupe, você pode devolver todos os seus arquivos! Todos os seus arquivos como documentos, fotos, bancos de dados e outros arquivos importantes foram criptografados com uma criptografia de nivel militar. Que garantias lhe damos? Você pode enviar 3 de seus arquivos criptografados e nós os descriptografamos gratuitamente. Você deve seguir estas etapas para descriptografar seus arquivos: 1) Escreva em nosso telegram: @RansowHacking 2) Obtenha Bitcoin (você deve pagar pela descriptografia em qualquer criptomoeda abaixo: Após o pagamento do valor de 500usdt, enviaremos a você a ferramenta que irá descriptografar todos os seus arquivos.) BTC: bc1qngsfpztnqlvs2jktxdkh53j5mgrty3s003tas5 ETH: 0x75427fC1b7830528748F914951bBF1D6403d072e XMR: 0x082b5a11e1c727F6be2A4a3c1028cD6797370786 TRC20: TB5nxv8hUKRvpfeHjgnNaCEbwXfja73gMb

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 3 IoCs
  • Chaos family
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Renames multiple (192) files with added filename extension

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

  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Disables Task Manager via registry modification
  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 64 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).

  • Interacts with shadow copies 3 TTPs 1 IoCs

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

  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-01-09_95be77dac172c472cba318f9876ec444_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-09_95be77dac172c472cba318f9876ec444_wannacry.exe"
    1⤵
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3016
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops desktop.ini file(s)
      • Sets desktop wallpaper using registry
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2680
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2724
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2468
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1892
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2408
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2064
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:1636
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:624
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:1668
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:1652
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2620
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1272
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:1452
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
        PID:2836

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\ProgramData\Adobe\Updater6\read_it.txt

        Filesize

        1KB

        MD5

        3e2b5192e7ca51e0bd3fe0910b680ee6

        SHA1

        a0a124d65a22f6f614dedc8cc9c35da9ac54c598

        SHA256

        897da642f47d00bc703e62b3e9d451ab24af1ec742dfe739c924a02a56988c61

        SHA512

        ee7326f3dabff32ebaaa7285b23ea2ec3a7753e7e8a255a81fe8f957083f016482b6beeb4468da00e1ab1ceed209a4b37bbc07ea7ba3f5046a2f5d7434d3db24

      • C:\Users\Admin\AppData\Roaming\svchost.exe

        Filesize

        6.3MB

        MD5

        95be77dac172c472cba318f9876ec444

        SHA1

        e24fc0a73ff5675a33de6bf033b65fa4b139d85a

        SHA256

        2dd3144ab294d675eae0290d5b2d385d4d7ddb36e0450b982358a1519ba19fb4

        SHA512

        4eeefdd69073f33d7369e52a306e812178365322ce26573331c9bfe9b60935e87b1a10b754df7159d87f1767ac945183b178923a53e21b7a5808e31e2af5a0a0

      • C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Notepad.lnk

        Filesize

        1B

        MD5

        d1457b72c3fb323a2671125aef3eab5d

        SHA1

        5bab61eb53176449e25c2c82f172b82cb13ffb9d

        SHA256

        8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

        SHA512

        ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

      • memory/2680-9-0x000007FEF64B0000-0x000007FEF6E9C000-memory.dmp

        Filesize

        9.9MB

      • memory/2680-10-0x0000000000FD0000-0x0000000001622000-memory.dmp

        Filesize

        6.3MB

      • memory/2680-11-0x000007FEF64B0000-0x000007FEF6E9C000-memory.dmp

        Filesize

        9.9MB

      • memory/2680-968-0x000007FEF64B0000-0x000007FEF6E9C000-memory.dmp

        Filesize

        9.9MB

      • memory/3016-0-0x000007FEF64B3000-0x000007FEF64B4000-memory.dmp

        Filesize

        4KB

      • memory/3016-1-0x0000000000C20000-0x0000000001272000-memory.dmp

        Filesize

        6.3MB

      • memory/3016-3-0x000007FEF64B0000-0x000007FEF6E9C000-memory.dmp

        Filesize

        9.9MB

      • memory/3016-8-0x000007FEF64B0000-0x000007FEF6E9C000-memory.dmp

        Filesize

        9.9MB