Overview

overview

10

Static

static

4da541578c...a3.exe

windows7-x64

10

4da541578c...a3.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    152s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220718-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220718-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-07-2022 20:26

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General

  • Target

    4da541578caf4cc3336ffb6fef30997deb1f7f6ab9bb38a2be58e014cc7b58a3.exe

  • Size

    367KB

  • MD5

    4730bcca5ec3e6a057604dc02d289236

  • SHA1

    fe421fa51dc1ca9133189f6afe7bd410238971b7

  • SHA256

    4da541578caf4cc3336ffb6fef30997deb1f7f6ab9bb38a2be58e014cc7b58a3

  • SHA512

    f84d3c59fa448db14ef6f247adc9f1785a5f9149701e6faa9aeb64298a30245694faf4aa428e0396b4dd418a164c7564a9de7ab20c1ae669497422ee187b1584

Score
10/10
teslacryptpersistenceransomware

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-1178428168-2939480073-3055857545-1000\_RECOVERY_+onyen.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/B064C9F15FDF52C6 2. http://tes543berda73i48fsdfsd.keratadze.at/B064C9F15FDF52C6 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/B064C9F15FDF52C6 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/B064C9F15FDF52C6 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/B064C9F15FDF52C6 http://tes543berda73i48fsdfsd.keratadze.at/B064C9F15FDF52C6 http://tt54rfdjhb34rfbnknaerg.milerteddy.com/B064C9F15FDF52C6 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/B064C9F15FDF52C6
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/B064C9F15FDF52C6

http://tes543berda73i48fsdfsd.keratadze.at/B064C9F15FDF52C6

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/B064C9F15FDF52C6

http://xlowfznrg4wf7dli.ONION/B064C9F15FDF52C6

Signatures

  • TeslaCrypt, AlphaCrypt

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

    ransomwareteslacrypt
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • 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
    persistence
  • 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
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\4da541578caf4cc3336ffb6fef30997deb1f7f6ab9bb38a2be58e014cc7b58a3.exe
    "C:\Users\Admin\AppData\Local\Temp\4da541578caf4cc3336ffb6fef30997deb1f7f6ab9bb38a2be58e014cc7b58a3.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1908
    • C:\Users\Admin\AppData\Local\Temp\4da541578caf4cc3336ffb6fef30997deb1f7f6ab9bb38a2be58e014cc7b58a3.exe
      "C:\Users\Admin\AppData\Local\Temp\4da541578caf4cc3336ffb6fef30997deb1f7f6ab9bb38a2be58e014cc7b58a3.exe"
      2⤵
      • Checks computer location settings
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4036
      • C:\Windows\ewgpnxpgquap.exe
        C:\Windows\ewgpnxpgquap.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1292
        • C:\Windows\ewgpnxpgquap.exe
          C:\Windows\ewgpnxpgquap.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:2348
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1232
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\4DA541~1.EXE
        3⤵
          PID:3532
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3612

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\ewgpnxpgquap.exe
      Filesize

      367KB

      MD5

      4730bcca5ec3e6a057604dc02d289236

      SHA1

      fe421fa51dc1ca9133189f6afe7bd410238971b7

      SHA256

      4da541578caf4cc3336ffb6fef30997deb1f7f6ab9bb38a2be58e014cc7b58a3

      SHA512

      f84d3c59fa448db14ef6f247adc9f1785a5f9149701e6faa9aeb64298a30245694faf4aa428e0396b4dd418a164c7564a9de7ab20c1ae669497422ee187b1584

      Download Submit

    • C:\Windows\ewgpnxpgquap.exe
      Filesize

      367KB

      MD5

      4730bcca5ec3e6a057604dc02d289236

      SHA1

      fe421fa51dc1ca9133189f6afe7bd410238971b7

      SHA256

      4da541578caf4cc3336ffb6fef30997deb1f7f6ab9bb38a2be58e014cc7b58a3

      SHA512

      f84d3c59fa448db14ef6f247adc9f1785a5f9149701e6faa9aeb64298a30245694faf4aa428e0396b4dd418a164c7564a9de7ab20c1ae669497422ee187b1584

      Download Submit

    • C:\Windows\ewgpnxpgquap.exe
      Filesize

      367KB

      MD5

      4730bcca5ec3e6a057604dc02d289236

      SHA1

      fe421fa51dc1ca9133189f6afe7bd410238971b7

      SHA256

      4da541578caf4cc3336ffb6fef30997deb1f7f6ab9bb38a2be58e014cc7b58a3

      SHA512

      f84d3c59fa448db14ef6f247adc9f1785a5f9149701e6faa9aeb64298a30245694faf4aa428e0396b4dd418a164c7564a9de7ab20c1ae669497422ee187b1584

      Download Submit

    • memory/1908-134-0x0000000000AE0000-0x0000000000AE3000-memory.dmp

      Filesize

      12KB

      Download

    • memory/1908-130-0x0000000000AE0000-0x0000000000AE3000-memory.dmp

      Filesize

      12KB

      Download

    • memory/2348-145-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/2348-149-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/2348-147-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/2348-146-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/4036-133-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/4036-141-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/4036-132-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/4036-136-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/4036-135-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download