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 06:26

General

  • Target

    ede4b8fdfba8799bc09ba2bc4b0f5f2ba6a7d52276e59fc1b7ef2a13d948c11f.exe

  • Size

    424KB

  • MD5

    61f88d5d87776f2d58197cb87af5e8e7

  • SHA1

    38642269bb87d098131a8cd59b75ea2cb52e937d

  • SHA256

    ede4b8fdfba8799bc09ba2bc4b0f5f2ba6a7d52276e59fc1b7ef2a13d948c11f

  • SHA512

    aad32e93939e49586760395dd5c8eacec0e179fd43c85344fff1d7e396d66b3314cc936b2e6cf02219214a65ad03a60847d96a696d9f65f41fb9c434cd765832

  • SSDEEP

    6144:Yg696TSBF7DRiH9Pyn65fNkKJXXj8p8HmHorKspEJihalpr70PoXbftChXW3Axfg:g96kNqmMNTFQaEorEJ4E5blCJxfS6

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-929662420-1054238289-2961194603-1000\_RECoVERY_+eapvh.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/AA83CF933096218 2. http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/AA83CF933096218 3. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/AA83CF933096218 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/AA83CF933096218 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/AA83CF933096218 http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/AA83CF933096218 http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/AA83CF933096218 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/AA83CF933096218
URLs

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/AA83CF933096218

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/AA83CF933096218

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/AA83CF933096218

http://xlowfznrg4wf7dli.ONION/AA83CF933096218

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 40 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\ede4b8fdfba8799bc09ba2bc4b0f5f2ba6a7d52276e59fc1b7ef2a13d948c11f.exe
    "C:\Users\Admin\AppData\Local\Temp\ede4b8fdfba8799bc09ba2bc4b0f5f2ba6a7d52276e59fc1b7ef2a13d948c11f.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3412
    • C:\Windows\pjjtpjurjmwk.exe
      C:\Windows\pjjtpjurjmwk.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:3684
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1316
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\EDE4B8~1.EXE
      2⤵
        PID:2004
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:432

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\pjjtpjurjmwk.exe

      Filesize

      424KB

      MD5

      61f88d5d87776f2d58197cb87af5e8e7

      SHA1

      38642269bb87d098131a8cd59b75ea2cb52e937d

      SHA256

      ede4b8fdfba8799bc09ba2bc4b0f5f2ba6a7d52276e59fc1b7ef2a13d948c11f

      SHA512

      aad32e93939e49586760395dd5c8eacec0e179fd43c85344fff1d7e396d66b3314cc936b2e6cf02219214a65ad03a60847d96a696d9f65f41fb9c434cd765832

    • C:\Windows\pjjtpjurjmwk.exe

      Filesize

      424KB

      MD5

      61f88d5d87776f2d58197cb87af5e8e7

      SHA1

      38642269bb87d098131a8cd59b75ea2cb52e937d

      SHA256

      ede4b8fdfba8799bc09ba2bc4b0f5f2ba6a7d52276e59fc1b7ef2a13d948c11f

      SHA512

      aad32e93939e49586760395dd5c8eacec0e179fd43c85344fff1d7e396d66b3314cc936b2e6cf02219214a65ad03a60847d96a696d9f65f41fb9c434cd765832

    • memory/1316-146-0x0000000000000000-mapping.dmp

    • memory/2004-140-0x0000000000000000-mapping.dmp

    • memory/3412-132-0x0000000000400000-0x00000000004AE000-memory.dmp

      Filesize

      696KB

    • memory/3412-136-0x0000000002250000-0x00000000022D5000-memory.dmp

      Filesize

      532KB

    • memory/3684-137-0x0000000000000000-mapping.dmp

    • memory/3684-145-0x00000000020F0000-0x0000000002175000-memory.dmp

      Filesize

      532KB