Analysis

  • max time kernel
    10s
  • max time network
    11s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-10-2022 08:55

General

  • Target

    8ccb96147d6198c9166b9619bfdc67b6f8a8e71318015e3679c6d5b9706f99a7.exe

  • Size

    404KB

  • MD5

    eabd3a0897cd161d8ba35caea23d0556

  • SHA1

    45216a4e48ef209fa244ec2425486db671d55530

  • SHA256

    8ccb96147d6198c9166b9619bfdc67b6f8a8e71318015e3679c6d5b9706f99a7

  • SHA512

    40e614c115727609b9ffc5b7ab9ec0c9f4b7162814aded05a3d817510d588ffbe58df419d493f57897df24fe4028ae2d651c21f9be25522badef1770dcbeff51

  • SSDEEP

    6144:KhgE/69rEIaB8sa1h5kPxnrHBdoeevcQ91R1pQcy4p/FFf2qecRJA6mJOl:wgwGDLsaJkpnroeevca1jNtFFHRJoOl

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-2629973501-4017243118-3254762364-1000\_RECoVERY_+mumww.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 RSA4096 More information about the encryption keys using RSA4096 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) How did this happen ? !!! Specially for your PC was generated personal RSA4096 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/47234799E3A39C7F 2. http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/47234799E3A39C7F 3. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/47234799E3A39C7F 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/47234799E3A39C7F 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/47234799E3A39C7F http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/47234799E3A39C7F http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/47234799E3A39C7F *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/47234799E3A39C7F
URLs

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/47234799E3A39C7F

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/47234799E3A39C7F

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/47234799E3A39C7F

http://xlowfznrg4wf7dli.ONION/47234799E3A39C7F

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 46 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\8ccb96147d6198c9166b9619bfdc67b6f8a8e71318015e3679c6d5b9706f99a7.exe
    "C:\Users\Admin\AppData\Local\Temp\8ccb96147d6198c9166b9619bfdc67b6f8a8e71318015e3679c6d5b9706f99a7.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2100
    • C:\Windows\vjvhbjukgler.exe
      C:\Windows\vjvhbjukgler.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:5020
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4072
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\8CCB96~1.EXE
      2⤵
        PID:2828
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4220

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\vjvhbjukgler.exe

      Filesize

      404KB

      MD5

      eabd3a0897cd161d8ba35caea23d0556

      SHA1

      45216a4e48ef209fa244ec2425486db671d55530

      SHA256

      8ccb96147d6198c9166b9619bfdc67b6f8a8e71318015e3679c6d5b9706f99a7

      SHA512

      40e614c115727609b9ffc5b7ab9ec0c9f4b7162814aded05a3d817510d588ffbe58df419d493f57897df24fe4028ae2d651c21f9be25522badef1770dcbeff51

    • C:\Windows\vjvhbjukgler.exe

      Filesize

      404KB

      MD5

      eabd3a0897cd161d8ba35caea23d0556

      SHA1

      45216a4e48ef209fa244ec2425486db671d55530

      SHA256

      8ccb96147d6198c9166b9619bfdc67b6f8a8e71318015e3679c6d5b9706f99a7

      SHA512

      40e614c115727609b9ffc5b7ab9ec0c9f4b7162814aded05a3d817510d588ffbe58df419d493f57897df24fe4028ae2d651c21f9be25522badef1770dcbeff51

    • memory/2100-132-0x0000000002280000-0x0000000002304000-memory.dmp

      Filesize

      528KB

    • memory/2100-133-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/2100-141-0x0000000002280000-0x0000000002304000-memory.dmp

      Filesize

      528KB

    • memory/5020-146-0x00000000021F0000-0x0000000002274000-memory.dmp

      Filesize

      528KB