Analysis

  • max time kernel
    188s
  • max time network
    190s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    26/06/2022, 03:33

General

  • Target

    36204b0a23be929eab9f2b335a85b81945649dec18e90b565ddce935bff03e0f.exe

  • Size

    344KB

  • MD5

    81feca42ed3aeb6425f595bbbca3be8b

  • SHA1

    55ddac273c69f1523094d04a49acf33c66f5848e

  • SHA256

    36204b0a23be929eab9f2b335a85b81945649dec18e90b565ddce935bff03e0f

  • SHA512

    8ce15d4d1a9fe08dcb3bf2719b97767b5dec4d72978930100ac9cb9c63b25ab0ff39e73e792e8b689f29370088b1befb0ae7f3a53c802b1bc6425a62ce1d4579

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-3751123196-3323558407-1869646069-1000\_RECOVERY_+orxfs.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/5E7DD83FBCABBFB9 2. http://tes543berda73i48fsdfsd.keratadze.at/5E7DD83FBCABBFB9 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/5E7DD83FBCABBFB9 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/5E7DD83FBCABBFB9 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/5E7DD83FBCABBFB9 http://tes543berda73i48fsdfsd.keratadze.at/5E7DD83FBCABBFB9 http://tt54rfdjhb34rfbnknaerg.milerteddy.com/5E7DD83FBCABBFB9 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/5E7DD83FBCABBFB9
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/5E7DD83FBCABBFB9

http://tes543berda73i48fsdfsd.keratadze.at/5E7DD83FBCABBFB9

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/5E7DD83FBCABBFB9

http://xlowfznrg4wf7dli.ONION/5E7DD83FBCABBFB9

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.

  • 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\36204b0a23be929eab9f2b335a85b81945649dec18e90b565ddce935bff03e0f.exe
    "C:\Users\Admin\AppData\Local\Temp\36204b0a23be929eab9f2b335a85b81945649dec18e90b565ddce935bff03e0f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1812
    • C:\Users\Admin\AppData\Local\Temp\36204b0a23be929eab9f2b335a85b81945649dec18e90b565ddce935bff03e0f.exe
      "C:\Users\Admin\AppData\Local\Temp\36204b0a23be929eab9f2b335a85b81945649dec18e90b565ddce935bff03e0f.exe"
      2⤵
      • Checks computer location settings
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4424
      • C:\Windows\reueiscatpgr.exe
        C:\Windows\reueiscatpgr.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2756
        • C:\Windows\reueiscatpgr.exe
          C:\Windows\reueiscatpgr.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:5020
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1136
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\36204B~1.EXE
        3⤵
          PID:4592
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3640

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\reueiscatpgr.exe

      Filesize

      344KB

      MD5

      81feca42ed3aeb6425f595bbbca3be8b

      SHA1

      55ddac273c69f1523094d04a49acf33c66f5848e

      SHA256

      36204b0a23be929eab9f2b335a85b81945649dec18e90b565ddce935bff03e0f

      SHA512

      8ce15d4d1a9fe08dcb3bf2719b97767b5dec4d72978930100ac9cb9c63b25ab0ff39e73e792e8b689f29370088b1befb0ae7f3a53c802b1bc6425a62ce1d4579

    • C:\Windows\reueiscatpgr.exe

      Filesize

      344KB

      MD5

      81feca42ed3aeb6425f595bbbca3be8b

      SHA1

      55ddac273c69f1523094d04a49acf33c66f5848e

      SHA256

      36204b0a23be929eab9f2b335a85b81945649dec18e90b565ddce935bff03e0f

      SHA512

      8ce15d4d1a9fe08dcb3bf2719b97767b5dec4d72978930100ac9cb9c63b25ab0ff39e73e792e8b689f29370088b1befb0ae7f3a53c802b1bc6425a62ce1d4579

    • C:\Windows\reueiscatpgr.exe

      Filesize

      344KB

      MD5

      81feca42ed3aeb6425f595bbbca3be8b

      SHA1

      55ddac273c69f1523094d04a49acf33c66f5848e

      SHA256

      36204b0a23be929eab9f2b335a85b81945649dec18e90b565ddce935bff03e0f

      SHA512

      8ce15d4d1a9fe08dcb3bf2719b97767b5dec4d72978930100ac9cb9c63b25ab0ff39e73e792e8b689f29370088b1befb0ae7f3a53c802b1bc6425a62ce1d4579

    • memory/1812-130-0x0000000000A60000-0x0000000000A63000-memory.dmp

      Filesize

      12KB

    • memory/1812-133-0x0000000000A60000-0x0000000000A63000-memory.dmp

      Filesize

      12KB

    • memory/4424-132-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/4424-140-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/4424-134-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/4424-135-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/5020-144-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/5020-145-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/5020-146-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/5020-148-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB