Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220414-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-07-2022 03:44

General

  • Target

    5236dad57ae58cf0d8505e979322b97fabb761dbc34d21a662b60771e8d1d271.exe

  • Size

    356KB

  • MD5

    7e373cf7f83afa2949c9537df192a8e5

  • SHA1

    ac50b6101a1dee8c0d4550c5c001a477d6765ac9

  • SHA256

    5236dad57ae58cf0d8505e979322b97fabb761dbc34d21a662b60771e8d1d271

  • SHA512

    a5666ee8fb9c0a614831c362ec0a90e698650db6f6dfe59c6e87ff624c84e0d0a832e6cbc6224038acd5009d2a0081437af6a367be75424b3868e8d7d07b86a5

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-1809750270-3141839489-3074374771-1000\Recovery+klmvg.txt

Family

teslacrypt

Ransom Note
NOT YOUR LANGUAGE? USE https://translate.google.com What happened to your files ? All of your files were protected by a strong encryption with AES More information about the encryption keys using AES can be found here: http://en.wikipedia.org/wiki/AES How did this happen ? !!! Specially for your PC was generated personal AES KEY, both public and private. !!! ALL YOUR FILES were encrypted with the public key, which has been transferred to your computer via the Internet. !!! Decrypting of your files is only possible with the help of the private key and decrypt program , which is on our Secret Server What do I do ? So, there are two ways you can choose: wait for a miracle and get your price doubled, or start obtaining BITCOIN NOW! , and restore your data easy way. If You have really valuable data, you better not waste your time, because there is no other way to get your files, except make a payment. For more specific instructions, please visit your personal home page, there are a few different addresses pointing to your page below: 1. http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/59BC9C5247B56B9 2. http://tes543berda73i48fsdfsd.keratadze.at/59BC9C5247B56B9 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/59BC9C5247B56B9 If for some reasons the addresses are not available, follow these steps: 1. Download and install tor-browser: http://www.torproject.org/projects/torbrowser.html.en 2. After a successful installation, run the browser 3. Type in the address bar: xlowfznrg4wf7dli.onion/59BC9C5247B56B9 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/59BC9C5247B56B9 http://tes543berda73i48fsdfsd.keratadze.at/59BC9C5247B56B9 http://tt54rfdjhb34rfbnknaerg.milerteddy.com/59BC9C5247B56B9 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/59BC9C5247B56B9
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/59BC9C5247B56B9

http://tes543berda73i48fsdfsd.keratadze.at/59BC9C5247B56B9

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/59BC9C5247B56B9

http://xlowfznrg4wf7dli.ONION/59BC9C5247B56B9

Signatures

  • TeslaCrypt, AlphaCrypt

    Ransomware based on CryptoLocker. Shut down by the developers in 2016.

  • suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon

    suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 47 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5236dad57ae58cf0d8505e979322b97fabb761dbc34d21a662b60771e8d1d271.exe
    "C:\Users\Admin\AppData\Local\Temp\5236dad57ae58cf0d8505e979322b97fabb761dbc34d21a662b60771e8d1d271.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Users\Admin\AppData\Local\Temp\5236dad57ae58cf0d8505e979322b97fabb761dbc34d21a662b60771e8d1d271.exe
      "C:\Users\Admin\AppData\Local\Temp\5236dad57ae58cf0d8505e979322b97fabb761dbc34d21a662b60771e8d1d271.exe"
      2⤵
      • Checks computer location settings
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3880
      • C:\Windows\outaqfghhrpw.exe
        C:\Windows\outaqfghhrpw.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4428
        • C:\Windows\outaqfghhrpw.exe
          C:\Windows\outaqfghhrpw.exe
          4⤵
          • Executes dropped EXE
          • Checks computer location settings
          • Adds Run key to start application
          • Drops file in Program Files directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          • System policy modification
          PID:5056
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4260
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\5236DA~1.EXE
        3⤵
          PID:3116
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4616

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\outaqfghhrpw.exe

      Filesize

      356KB

      MD5

      7e373cf7f83afa2949c9537df192a8e5

      SHA1

      ac50b6101a1dee8c0d4550c5c001a477d6765ac9

      SHA256

      5236dad57ae58cf0d8505e979322b97fabb761dbc34d21a662b60771e8d1d271

      SHA512

      a5666ee8fb9c0a614831c362ec0a90e698650db6f6dfe59c6e87ff624c84e0d0a832e6cbc6224038acd5009d2a0081437af6a367be75424b3868e8d7d07b86a5

    • C:\Windows\outaqfghhrpw.exe

      Filesize

      356KB

      MD5

      7e373cf7f83afa2949c9537df192a8e5

      SHA1

      ac50b6101a1dee8c0d4550c5c001a477d6765ac9

      SHA256

      5236dad57ae58cf0d8505e979322b97fabb761dbc34d21a662b60771e8d1d271

      SHA512

      a5666ee8fb9c0a614831c362ec0a90e698650db6f6dfe59c6e87ff624c84e0d0a832e6cbc6224038acd5009d2a0081437af6a367be75424b3868e8d7d07b86a5

    • C:\Windows\outaqfghhrpw.exe

      Filesize

      356KB

      MD5

      7e373cf7f83afa2949c9537df192a8e5

      SHA1

      ac50b6101a1dee8c0d4550c5c001a477d6765ac9

      SHA256

      5236dad57ae58cf0d8505e979322b97fabb761dbc34d21a662b60771e8d1d271

      SHA512

      a5666ee8fb9c0a614831c362ec0a90e698650db6f6dfe59c6e87ff624c84e0d0a832e6cbc6224038acd5009d2a0081437af6a367be75424b3868e8d7d07b86a5

    • memory/2004-134-0x0000000000750000-0x0000000000753000-memory.dmp

      Filesize

      12KB

    • memory/2004-130-0x0000000000750000-0x0000000000753000-memory.dmp

      Filesize

      12KB

    • memory/3880-133-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/3880-132-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/3880-139-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/3880-135-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/3880-141-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/5056-145-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/5056-146-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/5056-147-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/5056-149-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB