Analysis

  • max time kernel
    188s
  • max time network
    197s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    07-07-2022 09:08

General

  • Target

    46524bcdf035245970c0c89390aeaa51393535064a577e1ff8799915712dc104.exe

  • Size

    332KB

  • MD5

    5cba922e9b586ee49fe760c0b77a85d1

  • SHA1

    ee00dcce8f00c6e531d129b5658d5563aadafe70

  • SHA256

    46524bcdf035245970c0c89390aeaa51393535064a577e1ff8799915712dc104

  • SHA512

    f1e62a27af6fcc3f516cf001aa3559b5273d76eb03f12ac618677d62e953639d31f6fb2cd4dd00726c32516cc56c17ad26fa8f8a1a72c71f1369a751c946a502

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-3751123196-3323558407-1869646069-1000\_RECOVERY_+dhrut.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/2B4E932F7EDA9A75 2. http://tes543berda73i48fsdfsd.keratadze.at/2B4E932F7EDA9A75 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/2B4E932F7EDA9A75 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/2B4E932F7EDA9A75 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/2B4E932F7EDA9A75 http://tes543berda73i48fsdfsd.keratadze.at/2B4E932F7EDA9A75 http://tt54rfdjhb34rfbnknaerg.milerteddy.com/2B4E932F7EDA9A75 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/2B4E932F7EDA9A75
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/2B4E932F7EDA9A75

http://tes543berda73i48fsdfsd.keratadze.at/2B4E932F7EDA9A75

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/2B4E932F7EDA9A75

http://xlowfznrg4wf7dli.ONION/2B4E932F7EDA9A75

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 1 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
  • 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 8 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\46524bcdf035245970c0c89390aeaa51393535064a577e1ff8799915712dc104.exe
    "C:\Users\Admin\AppData\Local\Temp\46524bcdf035245970c0c89390aeaa51393535064a577e1ff8799915712dc104.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2884
    • C:\Windows\wgovowaoeivd.exe
      C:\Windows\wgovowaoeivd.exe
      2⤵
      • 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:2340
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:940
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\46524B~1.EXE
      2⤵
        PID:4640
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4712

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\wgovowaoeivd.exe

      Filesize

      332KB

      MD5

      5cba922e9b586ee49fe760c0b77a85d1

      SHA1

      ee00dcce8f00c6e531d129b5658d5563aadafe70

      SHA256

      46524bcdf035245970c0c89390aeaa51393535064a577e1ff8799915712dc104

      SHA512

      f1e62a27af6fcc3f516cf001aa3559b5273d76eb03f12ac618677d62e953639d31f6fb2cd4dd00726c32516cc56c17ad26fa8f8a1a72c71f1369a751c946a502

    • C:\Windows\wgovowaoeivd.exe

      Filesize

      332KB

      MD5

      5cba922e9b586ee49fe760c0b77a85d1

      SHA1

      ee00dcce8f00c6e531d129b5658d5563aadafe70

      SHA256

      46524bcdf035245970c0c89390aeaa51393535064a577e1ff8799915712dc104

      SHA512

      f1e62a27af6fcc3f516cf001aa3559b5273d76eb03f12ac618677d62e953639d31f6fb2cd4dd00726c32516cc56c17ad26fa8f8a1a72c71f1369a751c946a502

    • memory/940-144-0x0000000000000000-mapping.dmp

    • memory/2340-135-0x0000000000000000-mapping.dmp

    • memory/2340-143-0x0000000002140000-0x00000000021C5000-memory.dmp

      Filesize

      532KB

    • memory/2884-130-0x0000000000400000-0x0000000000497000-memory.dmp

      Filesize

      604KB

    • memory/2884-134-0x0000000002270000-0x00000000022F5000-memory.dmp

      Filesize

      532KB

    • memory/4640-142-0x0000000000000000-mapping.dmp