Analysis

  • max time kernel
    11s
  • max time network
    19s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-10-2022 02:12

General

  • Target

    0602f79c52643a332e5cbb22fe241826b1f3a12ad83b4f934b6d1d2a78cc6981.exe

  • Size

    360KB

  • MD5

    6ddeb9f7d1a1280673d8ce9275ae688d

  • SHA1

    0d114b641ce91822410fcb575c608b3c20e47e20

  • SHA256

    0602f79c52643a332e5cbb22fe241826b1f3a12ad83b4f934b6d1d2a78cc6981

  • SHA512

    8a42094cc4f4b4f46f15bd1e43f56909eba0ce806305aaa5d5ac456af27e1348b0b2219dc8fa65995084c56e49c1a2c282fd10169333559d7c7b0706cbe9f378

  • SSDEEP

    6144:z7gwRLGIfDA/Bgy8SqxglbUuYk6juoK6IqivYaBhdea7Qd88bM:QwRLZfDApo0AbSoKc2Yaxm8t

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-2295526160-1155304984-640977766-1000\_ReCoVeRy_+kamvd.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/91BABD163CC56935 2 - http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/91BABD163CC56935 3 - http://yyre45dbvn2nhbefbmh.begumvelic.at/91BABD163CC56935 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/91BABD163CC56935 4 - Follow the instructions on the site IMPORTANT INFORMATION Your personal pages http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/91BABD163CC56935 http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/91BABD163CC56935 http://yyre45dbvn2nhbefbmh.begumvelic.at/91BABD163CC56935 Your personal page Tor-Browser xlowfznrg4wf7dli.ONION/91BABD163CC56935
URLs

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/91BABD163CC56935

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/91BABD163CC56935

http://yyre45dbvn2nhbefbmh.begumvelic.at/91BABD163CC56935

http://xlowfznrg4wf7dli.ONION/91BABD163CC56935

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 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\0602f79c52643a332e5cbb22fe241826b1f3a12ad83b4f934b6d1d2a78cc6981.exe
    "C:\Users\Admin\AppData\Local\Temp\0602f79c52643a332e5cbb22fe241826b1f3a12ad83b4f934b6d1d2a78cc6981.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2020
    • C:\Windows\bvhbjukglerm.exe
      C:\Windows\bvhbjukglerm.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:2444
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3788
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\0602F7~1.EXE
      2⤵
        PID:4836
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3012

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\bvhbjukglerm.exe

      Filesize

      360KB

      MD5

      6ddeb9f7d1a1280673d8ce9275ae688d

      SHA1

      0d114b641ce91822410fcb575c608b3c20e47e20

      SHA256

      0602f79c52643a332e5cbb22fe241826b1f3a12ad83b4f934b6d1d2a78cc6981

      SHA512

      8a42094cc4f4b4f46f15bd1e43f56909eba0ce806305aaa5d5ac456af27e1348b0b2219dc8fa65995084c56e49c1a2c282fd10169333559d7c7b0706cbe9f378

    • C:\Windows\bvhbjukglerm.exe

      Filesize

      360KB

      MD5

      6ddeb9f7d1a1280673d8ce9275ae688d

      SHA1

      0d114b641ce91822410fcb575c608b3c20e47e20

      SHA256

      0602f79c52643a332e5cbb22fe241826b1f3a12ad83b4f934b6d1d2a78cc6981

      SHA512

      8a42094cc4f4b4f46f15bd1e43f56909eba0ce806305aaa5d5ac456af27e1348b0b2219dc8fa65995084c56e49c1a2c282fd10169333559d7c7b0706cbe9f378

    • memory/2020-132-0x0000000000400000-0x000000000049D000-memory.dmp

      Filesize

      628KB

    • memory/2020-136-0x00000000022C0000-0x0000000002346000-memory.dmp

      Filesize

      536KB

    • memory/2444-137-0x0000000000000000-mapping.dmp

    • memory/2444-145-0x0000000002190000-0x0000000002216000-memory.dmp

      Filesize

      536KB

    • memory/3788-146-0x0000000000000000-mapping.dmp

    • memory/4836-144-0x0000000000000000-mapping.dmp