Analysis

  • max time kernel
    188s
  • max time network
    194s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-12-2022 04:48

General

  • Target

    b00dc1034c1f339db2c4c1a06cad84cc0d3e8f850897fee570bb8cc0df905958.exe

  • Size

    418KB

  • MD5

    7dc17ca28cd045e5b4ecc6324a0eeb7b

  • SHA1

    80f82d076016d07cb68822bb81291b2f17990a4f

  • SHA256

    b00dc1034c1f339db2c4c1a06cad84cc0d3e8f850897fee570bb8cc0df905958

  • SHA512

    e544c5e95461f2f0cf34283e84451214de2fa07e25d60e7a492e06333f5b58a2952f8dc9854df5c9878e759a49f83a5ce71280893a8b24a91f4441c79c2ccd69

  • SSDEEP

    12288:1UbjpvVw7FlRNCq/knSujQRlBlDeK0k9p:6bdVMhS0nltp

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-4246620582-653642754-1174164128-1000\_RECoVERY_+cjush.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/7B6E4CD9457D8448 2. http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/7B6E4CD9457D8448 3. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/7B6E4CD9457D8448 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/7B6E4CD9457D8448 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/7B6E4CD9457D8448 http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/7B6E4CD9457D8448 http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/7B6E4CD9457D8448 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/7B6E4CD9457D8448
URLs

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/7B6E4CD9457D8448

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/7B6E4CD9457D8448

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/7B6E4CD9457D8448

http://xlowfznrg4wf7dli.ONION/7B6E4CD9457D8448

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 2 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
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 9 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 26 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b00dc1034c1f339db2c4c1a06cad84cc0d3e8f850897fee570bb8cc0df905958.exe
    "C:\Users\Admin\AppData\Local\Temp\b00dc1034c1f339db2c4c1a06cad84cc0d3e8f850897fee570bb8cc0df905958.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4440
    • C:\Users\Admin\AppData\Local\Temp\b00dc1034c1f339db2c4c1a06cad84cc0d3e8f850897fee570bb8cc0df905958.exe
      "C:\Users\Admin\AppData\Local\Temp\b00dc1034c1f339db2c4c1a06cad84cc0d3e8f850897fee570bb8cc0df905958.exe"
      2⤵
      • Checks computer location settings
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3112
      • C:\Windows\frtjehambvua.exe
        C:\Windows\frtjehambvua.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4608
        • C:\Windows\frtjehambvua.exe
          C:\Windows\frtjehambvua.exe
          4⤵
          • 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:3648
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4936
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\B00DC1~1.EXE
        3⤵
          PID:2568
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4488

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\frtjehambvua.exe

      Filesize

      418KB

      MD5

      7dc17ca28cd045e5b4ecc6324a0eeb7b

      SHA1

      80f82d076016d07cb68822bb81291b2f17990a4f

      SHA256

      b00dc1034c1f339db2c4c1a06cad84cc0d3e8f850897fee570bb8cc0df905958

      SHA512

      e544c5e95461f2f0cf34283e84451214de2fa07e25d60e7a492e06333f5b58a2952f8dc9854df5c9878e759a49f83a5ce71280893a8b24a91f4441c79c2ccd69

    • C:\Windows\frtjehambvua.exe

      Filesize

      418KB

      MD5

      7dc17ca28cd045e5b4ecc6324a0eeb7b

      SHA1

      80f82d076016d07cb68822bb81291b2f17990a4f

      SHA256

      b00dc1034c1f339db2c4c1a06cad84cc0d3e8f850897fee570bb8cc0df905958

      SHA512

      e544c5e95461f2f0cf34283e84451214de2fa07e25d60e7a492e06333f5b58a2952f8dc9854df5c9878e759a49f83a5ce71280893a8b24a91f4441c79c2ccd69

    • C:\Windows\frtjehambvua.exe

      Filesize

      418KB

      MD5

      7dc17ca28cd045e5b4ecc6324a0eeb7b

      SHA1

      80f82d076016d07cb68822bb81291b2f17990a4f

      SHA256

      b00dc1034c1f339db2c4c1a06cad84cc0d3e8f850897fee570bb8cc0df905958

      SHA512

      e544c5e95461f2f0cf34283e84451214de2fa07e25d60e7a492e06333f5b58a2952f8dc9854df5c9878e759a49f83a5ce71280893a8b24a91f4441c79c2ccd69

    • memory/2568-143-0x0000000000000000-mapping.dmp

    • memory/3112-137-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/3112-138-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/3112-139-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/3112-135-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/3112-134-0x0000000000000000-mapping.dmp

    • memory/3112-144-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/3648-148-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/3648-152-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/3648-150-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/3648-145-0x0000000000000000-mapping.dmp

    • memory/3648-149-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/4440-133-0x0000000002220000-0x0000000002224000-memory.dmp

      Filesize

      16KB

    • memory/4440-132-0x0000000002220000-0x0000000002224000-memory.dmp

      Filesize

      16KB

    • memory/4440-136-0x0000000002220000-0x0000000002224000-memory.dmp

      Filesize

      16KB

    • memory/4608-140-0x0000000000000000-mapping.dmp

    • memory/4936-151-0x0000000000000000-mapping.dmp