Analysis

  • max time kernel
    152s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    07-07-2022 08:00

General

  • Target

    46b08a0aca04a4b7beefde2319cddb6e64590c1b20d836fd47f6b468d93a3c4a.exe

  • Size

    344KB

  • MD5

    430117ef918aab7cce9882152852ec83

  • SHA1

    0c63fe6dc7fab7aa91f5d6f12c753677c141e2ff

  • SHA256

    46b08a0aca04a4b7beefde2319cddb6e64590c1b20d836fd47f6b468d93a3c4a

  • SHA512

    4ea134f8761d2f8ae518f56eca625e2f926759ffa9e378b9dd664b23b91cb063baba00e5880359df83e3c112ac7c970c0be081739eab21c2b5b6771cd83effdd

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-3751123196-3323558407-1869646069-1000\Recovery+xhidb.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://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/BACD36932DD3C3B 2. http://tes543berda73i48fsdfsd.keratadze.at/BACD36932DD3C3B 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/BACD36932DD3C3B 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/BACD36932DD3C3B 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/BACD36932DD3C3B http://tes543berda73i48fsdfsd.keratadze.at/BACD36932DD3C3B http://tt54rfdjhb34rfbnknaerg.milerteddy.com/BACD36932DD3C3B *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/BACD36932DD3C3B
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/BACD36932DD3C3B

http://tes543berda73i48fsdfsd.keratadze.at/BACD36932DD3C3B

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/BACD36932DD3C3B

http://xlowfznrg4wf7dli.ONION/BACD36932DD3C3B

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
  • 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 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 26 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\46b08a0aca04a4b7beefde2319cddb6e64590c1b20d836fd47f6b468d93a3c4a.exe
    "C:\Users\Admin\AppData\Local\Temp\46b08a0aca04a4b7beefde2319cddb6e64590c1b20d836fd47f6b468d93a3c4a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4344
    • C:\Users\Admin\AppData\Local\Temp\46b08a0aca04a4b7beefde2319cddb6e64590c1b20d836fd47f6b468d93a3c4a.exe
      "C:\Users\Admin\AppData\Local\Temp\46b08a0aca04a4b7beefde2319cddb6e64590c1b20d836fd47f6b468d93a3c4a.exe"
      2⤵
      • Checks computer location settings
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3096
      • C:\Windows\ppxndkmchnue.exe
        C:\Windows\ppxndkmchnue.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4372
        • C:\Windows\ppxndkmchnue.exe
          C:\Windows\ppxndkmchnue.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:4928
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4484
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\46B08A~1.EXE
        3⤵
          PID:8
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3276

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\ppxndkmchnue.exe

      Filesize

      344KB

      MD5

      430117ef918aab7cce9882152852ec83

      SHA1

      0c63fe6dc7fab7aa91f5d6f12c753677c141e2ff

      SHA256

      46b08a0aca04a4b7beefde2319cddb6e64590c1b20d836fd47f6b468d93a3c4a

      SHA512

      4ea134f8761d2f8ae518f56eca625e2f926759ffa9e378b9dd664b23b91cb063baba00e5880359df83e3c112ac7c970c0be081739eab21c2b5b6771cd83effdd

    • C:\Windows\ppxndkmchnue.exe

      Filesize

      344KB

      MD5

      430117ef918aab7cce9882152852ec83

      SHA1

      0c63fe6dc7fab7aa91f5d6f12c753677c141e2ff

      SHA256

      46b08a0aca04a4b7beefde2319cddb6e64590c1b20d836fd47f6b468d93a3c4a

      SHA512

      4ea134f8761d2f8ae518f56eca625e2f926759ffa9e378b9dd664b23b91cb063baba00e5880359df83e3c112ac7c970c0be081739eab21c2b5b6771cd83effdd

    • C:\Windows\ppxndkmchnue.exe

      Filesize

      344KB

      MD5

      430117ef918aab7cce9882152852ec83

      SHA1

      0c63fe6dc7fab7aa91f5d6f12c753677c141e2ff

      SHA256

      46b08a0aca04a4b7beefde2319cddb6e64590c1b20d836fd47f6b468d93a3c4a

      SHA512

      4ea134f8761d2f8ae518f56eca625e2f926759ffa9e378b9dd664b23b91cb063baba00e5880359df83e3c112ac7c970c0be081739eab21c2b5b6771cd83effdd

    • memory/8-139-0x0000000000000000-mapping.dmp

    • memory/3096-134-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/3096-135-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/3096-140-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/3096-132-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/3096-131-0x0000000000000000-mapping.dmp

    • memory/4344-130-0x0000000000970000-0x0000000000973000-memory.dmp

      Filesize

      12KB

    • memory/4344-133-0x0000000000970000-0x0000000000973000-memory.dmp

      Filesize

      12KB

    • memory/4372-136-0x0000000000000000-mapping.dmp

    • memory/4484-147-0x0000000000000000-mapping.dmp

    • memory/4928-141-0x0000000000000000-mapping.dmp

    • memory/4928-144-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/4928-145-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/4928-146-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/4928-148-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB