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
    24-10-2022 05:15

General

  • Target

    eec3604acc91abae3343db62517ef3a8e9a222b6ef86660ba7b20173dc91ba4d.exe

  • Size

    352KB

  • MD5

    7426abca716ab576b667c130dc31c470

  • SHA1

    1e375576e068393dd947462dc16b9b8f685a346a

  • SHA256

    eec3604acc91abae3343db62517ef3a8e9a222b6ef86660ba7b20173dc91ba4d

  • SHA512

    672f01eb4e71ff9442c4e8d9a1b2ee1459d6ffb41551df6c6a32ee91510e1f9e524e82ddabdb8620efb7f29cedca9a3abd2b071f4eb0a195a7140749923d3543

  • SSDEEP

    6144:mS48iSC8d+s1ScRmCHY++2RaKcUu4lzyWHBzRrvF:BHC4xkB2ROOBVrv

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-929662420-1054238289-2961194603-1000\_ReCoVeRy_+ugeod.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://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/8AFF19DE6AB18461 2 - http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/8AFF19DE6AB18461 3 - http://yyre45dbvn2nhbefbmh.begumvelic.at/8AFF19DE6AB18461 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/8AFF19DE6AB18461 4 - Follow the instructions on the site IMPORTANT INFORMATION Your personal pages http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/8AFF19DE6AB18461 http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/8AFF19DE6AB18461 http://yyre45dbvn2nhbefbmh.begumvelic.at/8AFF19DE6AB18461 Your personal page Tor-Browser xlowfznrg4wf7dli.ONION/8AFF19DE6AB18461
URLs

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/8AFF19DE6AB18461

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/8AFF19DE6AB18461

http://yyre45dbvn2nhbefbmh.begumvelic.at/8AFF19DE6AB18461

http://xlowfznrg4wf7dli.ONION/8AFF19DE6AB18461

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 58 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\eec3604acc91abae3343db62517ef3a8e9a222b6ef86660ba7b20173dc91ba4d.exe
    "C:\Users\Admin\AppData\Local\Temp\eec3604acc91abae3343db62517ef3a8e9a222b6ef86660ba7b20173dc91ba4d.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4644
    • C:\Windows\bmrjnyuxlfpj.exe
      C:\Windows\bmrjnyuxlfpj.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:3136
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:340
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\EEC360~1.EXE
      2⤵
        PID:1608
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4320

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\bmrjnyuxlfpj.exe

      Filesize

      352KB

      MD5

      7426abca716ab576b667c130dc31c470

      SHA1

      1e375576e068393dd947462dc16b9b8f685a346a

      SHA256

      eec3604acc91abae3343db62517ef3a8e9a222b6ef86660ba7b20173dc91ba4d

      SHA512

      672f01eb4e71ff9442c4e8d9a1b2ee1459d6ffb41551df6c6a32ee91510e1f9e524e82ddabdb8620efb7f29cedca9a3abd2b071f4eb0a195a7140749923d3543

    • C:\Windows\bmrjnyuxlfpj.exe

      Filesize

      352KB

      MD5

      7426abca716ab576b667c130dc31c470

      SHA1

      1e375576e068393dd947462dc16b9b8f685a346a

      SHA256

      eec3604acc91abae3343db62517ef3a8e9a222b6ef86660ba7b20173dc91ba4d

      SHA512

      672f01eb4e71ff9442c4e8d9a1b2ee1459d6ffb41551df6c6a32ee91510e1f9e524e82ddabdb8620efb7f29cedca9a3abd2b071f4eb0a195a7140749923d3543

    • memory/340-149-0x0000000000000000-mapping.dmp

    • memory/1608-143-0x0000000000000000-mapping.dmp

    • memory/3136-139-0x0000000000000000-mapping.dmp

    • memory/3136-148-0x0000000002100000-0x0000000002186000-memory.dmp

      Filesize

      536KB

    • memory/4644-135-0x0000000000400000-0x000000000049C000-memory.dmp

      Filesize

      624KB

    • memory/4644-142-0x0000000002220000-0x00000000022A6000-memory.dmp

      Filesize

      536KB