Analysis

  • max time kernel
    10s
  • max time network
    12s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-10-2022 02:09

General

  • Target

    0409ef8d80a091a3407fea01fe571008a973ba7d265a2cba857e37a10da19d1d.exe

  • Size

    428KB

  • MD5

    25d19a52635910583e2d7ae9838dafc1

  • SHA1

    79d3eafc12de06b7d9aa24a0341bd92a40e05586

  • SHA256

    0409ef8d80a091a3407fea01fe571008a973ba7d265a2cba857e37a10da19d1d

  • SHA512

    b73220f16dab0b121bd50591c98641b88e20676531658d76f4e3b58a976a09deead9fa67f3be607f17ef1011ef8831e2a8901cc4cd01b5172e7cd408394003ca

  • SSDEEP

    12288:aniPO95/KIQuuijlhVWpKvq9tsJGAEdMblCJxfS6:anCO95JDuiphsN0krUOR1

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-929662420-1054238289-2961194603-1000\_RECoVERY_+ydwhu.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://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/4662C22B631DD5AF 2. http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/4662C22B631DD5AF 3. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/4662C22B631DD5AF 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/4662C22B631DD5AF 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/4662C22B631DD5AF http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/4662C22B631DD5AF http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/4662C22B631DD5AF *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/4662C22B631DD5AF
URLs

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/4662C22B631DD5AF

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/4662C22B631DD5AF

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/4662C22B631DD5AF

http://xlowfznrg4wf7dli.ONION/4662C22B631DD5AF

Signatures

  • TeslaCrypt, AlphaCrypt

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

  • 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 52 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\0409ef8d80a091a3407fea01fe571008a973ba7d265a2cba857e37a10da19d1d.exe
    "C:\Users\Admin\AppData\Local\Temp\0409ef8d80a091a3407fea01fe571008a973ba7d265a2cba857e37a10da19d1d.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3088
    • C:\Windows\pstdhwbrppim.exe
      C:\Windows\pstdhwbrppim.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:4336
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3728
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\0409EF~1.EXE
      2⤵
        PID:3196
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4648

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\pstdhwbrppim.exe

      Filesize

      428KB

      MD5

      25d19a52635910583e2d7ae9838dafc1

      SHA1

      79d3eafc12de06b7d9aa24a0341bd92a40e05586

      SHA256

      0409ef8d80a091a3407fea01fe571008a973ba7d265a2cba857e37a10da19d1d

      SHA512

      b73220f16dab0b121bd50591c98641b88e20676531658d76f4e3b58a976a09deead9fa67f3be607f17ef1011ef8831e2a8901cc4cd01b5172e7cd408394003ca

    • C:\Windows\pstdhwbrppim.exe

      Filesize

      428KB

      MD5

      25d19a52635910583e2d7ae9838dafc1

      SHA1

      79d3eafc12de06b7d9aa24a0341bd92a40e05586

      SHA256

      0409ef8d80a091a3407fea01fe571008a973ba7d265a2cba857e37a10da19d1d

      SHA512

      b73220f16dab0b121bd50591c98641b88e20676531658d76f4e3b58a976a09deead9fa67f3be607f17ef1011ef8831e2a8901cc4cd01b5172e7cd408394003ca

    • memory/3088-132-0x0000000000400000-0x00000000004AE000-memory.dmp

      Filesize

      696KB

    • memory/3088-139-0x0000000002140000-0x00000000021C5000-memory.dmp

      Filesize

      532KB

    • memory/3196-140-0x0000000000000000-mapping.dmp

    • memory/3728-146-0x0000000000000000-mapping.dmp

    • memory/4336-136-0x0000000000000000-mapping.dmp

    • memory/4336-145-0x0000000002150000-0x00000000021D5000-memory.dmp

      Filesize

      532KB