Analysis

  • max time kernel
    150s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220414-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-07-2022 17:47

General

  • Target

    4e6266fbc4a6cc09304e582382095dc5681493589f6e2dc60ba968c3101ae2c8.exe

  • Size

    328KB

  • MD5

    68e815419a02c8d958a2bd5ecbe046c7

  • SHA1

    812292949d5512e3a319396e9b69aed1497e7cca

  • SHA256

    4e6266fbc4a6cc09304e582382095dc5681493589f6e2dc60ba968c3101ae2c8

  • SHA512

    f4f5d2f4880c34b60d2264e304f85862fa3fab51a367fd946377dfded58b8c1cff221c93bfca02783ba8fb4954bc920c655e13696502ffb1b80c1543e61e9839

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-1809750270-3141839489-3074374771-1000\Recovery+xahhw.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/CCE9DBE17B9B2E 2. http://kkd47eh4hdjshb5t.angortra.at/CCE9DBE17B9B2E 3. http://ytrest84y5i456hghadefdsd.pontogrot.com/CCE9DBE17B9B2E 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/CCE9DBE17B9B2E 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://tt54rfdjhb34rfbnknaerg.milerteddy.com/CCE9DBE17B9B2E http://kkd47eh4hdjshb5t.angortra.at/CCE9DBE17B9B2E http://ytrest84y5i456hghadefdsd.pontogrot.com/CCE9DBE17B9B2E *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/CCE9DBE17B9B2E
URLs

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/CCE9DBE17B9B2E

http://kkd47eh4hdjshb5t.angortra.at/CCE9DBE17B9B2E

http://ytrest84y5i456hghadefdsd.pontogrot.com/CCE9DBE17B9B2E

http://xlowfznrg4wf7dli.ONION/CCE9DBE17B9B2E

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.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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 23 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4e6266fbc4a6cc09304e582382095dc5681493589f6e2dc60ba968c3101ae2c8.exe
    "C:\Users\Admin\AppData\Local\Temp\4e6266fbc4a6cc09304e582382095dc5681493589f6e2dc60ba968c3101ae2c8.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2192
    • C:\Windows\germwqblkwcm.exe
      C:\Windows\germwqblkwcm.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:1628
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /noin teractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2548
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\4E6266~1.EXE
      2⤵
        PID:4348

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\germwqblkwcm.exe

      Filesize

      328KB

      MD5

      68e815419a02c8d958a2bd5ecbe046c7

      SHA1

      812292949d5512e3a319396e9b69aed1497e7cca

      SHA256

      4e6266fbc4a6cc09304e582382095dc5681493589f6e2dc60ba968c3101ae2c8

      SHA512

      f4f5d2f4880c34b60d2264e304f85862fa3fab51a367fd946377dfded58b8c1cff221c93bfca02783ba8fb4954bc920c655e13696502ffb1b80c1543e61e9839

    • C:\Windows\germwqblkwcm.exe

      Filesize

      328KB

      MD5

      68e815419a02c8d958a2bd5ecbe046c7

      SHA1

      812292949d5512e3a319396e9b69aed1497e7cca

      SHA256

      4e6266fbc4a6cc09304e582382095dc5681493589f6e2dc60ba968c3101ae2c8

      SHA512

      f4f5d2f4880c34b60d2264e304f85862fa3fab51a367fd946377dfded58b8c1cff221c93bfca02783ba8fb4954bc920c655e13696502ffb1b80c1543e61e9839

    • memory/1628-135-0x0000000000000000-mapping.dmp

    • memory/1628-142-0x00000000021C0000-0x0000000002246000-memory.dmp

      Filesize

      536KB

    • memory/2192-130-0x0000000000400000-0x0000000000495000-memory.dmp

      Filesize

      596KB

    • memory/2192-134-0x00000000022A0000-0x0000000002326000-memory.dmp

      Filesize

      536KB

    • memory/2548-144-0x0000000000000000-mapping.dmp

    • memory/4348-143-0x0000000000000000-mapping.dmp