Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • resource tags

    arch:x64arch:x86image:win7-20220414-enlocale:en-usos:windows7-x64system
  • submitted
    17-07-2022 00:07

General

  • Target

    535bc699baf41334ad3f15528af60df9a8421533068f3f09ed01df212b40b059.exe

  • Size

    376KB

  • MD5

    2b4d5982e3909f16967246c9fc4d2451

  • SHA1

    2bd2a2d29679fe8cf68ab8f00ae9ed58f1506c06

  • SHA256

    535bc699baf41334ad3f15528af60df9a8421533068f3f09ed01df212b40b059

  • SHA512

    01d8716520cab4c226135116cc716d5337b54bcfd672fed8ef727b02560ecd1a16c8602bafbdc75fb65eb49f8af9d3add0658c116b9a574fe2183e2f2f9c68cb

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-2277218442-1199762539-2004043321-1000\Recovery+ljtqc.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 RSA-4096. More information about the encryption keys using RSA-4096 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) How did this happen ? !!! Specially for your PC was generated personal RSA-4096 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://tt54rfdjhb34rfbnknaerg.milerteddy.com/4F70D8B5494DDF30 2. http://kkd47eh4hdjshb5t.angortra.at/4F70D8B5494DDF30 3. http://ytrest84y5i456hghadefdsd.pontogrot.com/4F70D8B5494DDF30 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/4F70D8B5494DDF30 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://tt54rfdjhb34rfbnknaerg.milerteddy.com/4F70D8B5494DDF30 http://kkd47eh4hdjshb5t.angortra.at/4F70D8B5494DDF30 http://ytrest84y5i456hghadefdsd.pontogrot.com/4F70D8B5494DDF30 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/4F70D8B5494DDF30
URLs

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/4F70D8B5494DDF30

http://kkd47eh4hdjshb5t.angortra.at/4F70D8B5494DDF30

http://ytrest84y5i456hghadefdsd.pontogrot.com/4F70D8B5494DDF30

http://xlowfznrg4wf7dli.ONION/4F70D8B5494DDF30

Signatures

  • TeslaCrypt, AlphaCrypt

    Ransomware based on CryptoLocker. Shut down by the developers in 2016.

  • suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon

    suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 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 22 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\535bc699baf41334ad3f15528af60df9a8421533068f3f09ed01df212b40b059.exe
    "C:\Users\Admin\AppData\Local\Temp\535bc699baf41334ad3f15528af60df9a8421533068f3f09ed01df212b40b059.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1368
    • C:\Users\Admin\AppData\Local\Temp\535bc699baf41334ad3f15528af60df9a8421533068f3f09ed01df212b40b059.exe
      "C:\Users\Admin\AppData\Local\Temp\535bc699baf41334ad3f15528af60df9a8421533068f3f09ed01df212b40b059.exe"
      2⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1636
      • C:\Windows\spvuywshsdfy.exe
        C:\Windows\spvuywshsdfy.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:904
        • C:\Windows\spvuywshsdfy.exe
          C:\Windows\spvuywshsdfy.exe
          4⤵
          • Executes dropped EXE
          • 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:1008
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /noin teractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1136
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\535BC6~1.EXE
        3⤵
        • Deletes itself
        PID:1796

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\spvuywshsdfy.exe

    Filesize

    376KB

    MD5

    2b4d5982e3909f16967246c9fc4d2451

    SHA1

    2bd2a2d29679fe8cf68ab8f00ae9ed58f1506c06

    SHA256

    535bc699baf41334ad3f15528af60df9a8421533068f3f09ed01df212b40b059

    SHA512

    01d8716520cab4c226135116cc716d5337b54bcfd672fed8ef727b02560ecd1a16c8602bafbdc75fb65eb49f8af9d3add0658c116b9a574fe2183e2f2f9c68cb

  • C:\Windows\spvuywshsdfy.exe

    Filesize

    376KB

    MD5

    2b4d5982e3909f16967246c9fc4d2451

    SHA1

    2bd2a2d29679fe8cf68ab8f00ae9ed58f1506c06

    SHA256

    535bc699baf41334ad3f15528af60df9a8421533068f3f09ed01df212b40b059

    SHA512

    01d8716520cab4c226135116cc716d5337b54bcfd672fed8ef727b02560ecd1a16c8602bafbdc75fb65eb49f8af9d3add0658c116b9a574fe2183e2f2f9c68cb

  • C:\Windows\spvuywshsdfy.exe

    Filesize

    376KB

    MD5

    2b4d5982e3909f16967246c9fc4d2451

    SHA1

    2bd2a2d29679fe8cf68ab8f00ae9ed58f1506c06

    SHA256

    535bc699baf41334ad3f15528af60df9a8421533068f3f09ed01df212b40b059

    SHA512

    01d8716520cab4c226135116cc716d5337b54bcfd672fed8ef727b02560ecd1a16c8602bafbdc75fb65eb49f8af9d3add0658c116b9a574fe2183e2f2f9c68cb

  • memory/904-73-0x0000000000000000-mapping.dmp

  • memory/1008-96-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1008-95-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1008-94-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1008-90-0x000000000043D15A-mapping.dmp

  • memory/1136-97-0x0000000000000000-mapping.dmp

  • memory/1368-55-0x0000000000240000-0x0000000000243000-memory.dmp

    Filesize

    12KB

  • memory/1368-54-0x0000000076171000-0x0000000076173000-memory.dmp

    Filesize

    8KB

  • memory/1368-69-0x0000000000240000-0x0000000000243000-memory.dmp

    Filesize

    12KB

  • memory/1636-63-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1636-72-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1636-71-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1636-77-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1636-67-0x000000000043D15A-mapping.dmp

  • memory/1636-66-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1636-64-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1636-61-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1636-59-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1636-57-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1636-56-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1796-76-0x0000000000000000-mapping.dmp