Analysis

  • max time kernel
    188s
  • max time network
    188s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-07-2022 16:08

General

  • Target

    556863463343e0d0ffcebdefbf72f27be647650a70f06650ce0219b732cd2300.exe

  • Size

    392KB

  • MD5

    3b1d8817c3b53cd294686d8a7932e57d

  • SHA1

    b79bb02b9741147b9c84d50500abf834927ba1a5

  • SHA256

    556863463343e0d0ffcebdefbf72f27be647650a70f06650ce0219b732cd2300

  • SHA512

    5c576fa03c99b44b768adcdbf21a4c455bc554640900c52846449d6e749e4542d2f630618b1e37a04e59a1fbc3cd16477e5fae2037b883f8c713c42b2526e38e

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-1101907861-274115917-2188613224-1000\Recovery+kapyh.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://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/D4809953CA16933 2. http://tes543berda73i48fsdfsd.keratadze.at/D4809953CA16933 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/D4809953CA16933 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/D4809953CA16933 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/D4809953CA16933 http://tes543berda73i48fsdfsd.keratadze.at/D4809953CA16933 http://tt54rfdjhb34rfbnknaerg.milerteddy.com/D4809953CA16933 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/D4809953CA16933
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/D4809953CA16933

http://tes543berda73i48fsdfsd.keratadze.at/D4809953CA16933

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/D4809953CA16933

http://xlowfznrg4wf7dli.ONION/D4809953CA16933

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 50 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 28 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\556863463343e0d0ffcebdefbf72f27be647650a70f06650ce0219b732cd2300.exe
    "C:\Users\Admin\AppData\Local\Temp\556863463343e0d0ffcebdefbf72f27be647650a70f06650ce0219b732cd2300.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3444
    • C:\Users\Admin\AppData\Local\Temp\556863463343e0d0ffcebdefbf72f27be647650a70f06650ce0219b732cd2300.exe
      "C:\Users\Admin\AppData\Local\Temp\556863463343e0d0ffcebdefbf72f27be647650a70f06650ce0219b732cd2300.exe"
      2⤵
      • Checks computer location settings
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4872
      • C:\Windows\ujxbaukbhvmv.exe
        C:\Windows\ujxbaukbhvmv.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4692
        • C:\Windows\ujxbaukbhvmv.exe
          C:\Windows\ujxbaukbhvmv.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:3424
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4476
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\556863~1.EXE
        3⤵
          PID:2196
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4216

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\ujxbaukbhvmv.exe

      Filesize

      392KB

      MD5

      3b1d8817c3b53cd294686d8a7932e57d

      SHA1

      b79bb02b9741147b9c84d50500abf834927ba1a5

      SHA256

      556863463343e0d0ffcebdefbf72f27be647650a70f06650ce0219b732cd2300

      SHA512

      5c576fa03c99b44b768adcdbf21a4c455bc554640900c52846449d6e749e4542d2f630618b1e37a04e59a1fbc3cd16477e5fae2037b883f8c713c42b2526e38e

    • C:\Windows\ujxbaukbhvmv.exe

      Filesize

      392KB

      MD5

      3b1d8817c3b53cd294686d8a7932e57d

      SHA1

      b79bb02b9741147b9c84d50500abf834927ba1a5

      SHA256

      556863463343e0d0ffcebdefbf72f27be647650a70f06650ce0219b732cd2300

      SHA512

      5c576fa03c99b44b768adcdbf21a4c455bc554640900c52846449d6e749e4542d2f630618b1e37a04e59a1fbc3cd16477e5fae2037b883f8c713c42b2526e38e

    • C:\Windows\ujxbaukbhvmv.exe

      Filesize

      392KB

      MD5

      3b1d8817c3b53cd294686d8a7932e57d

      SHA1

      b79bb02b9741147b9c84d50500abf834927ba1a5

      SHA256

      556863463343e0d0ffcebdefbf72f27be647650a70f06650ce0219b732cd2300

      SHA512

      5c576fa03c99b44b768adcdbf21a4c455bc554640900c52846449d6e749e4542d2f630618b1e37a04e59a1fbc3cd16477e5fae2037b883f8c713c42b2526e38e

    • memory/2196-141-0x0000000000000000-mapping.dmp

    • memory/3424-146-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

    • memory/3424-143-0x0000000000000000-mapping.dmp

    • memory/3424-150-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

    • memory/3424-148-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

    • memory/3424-147-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

    • memory/3444-133-0x00000000009E0000-0x00000000009E3000-memory.dmp

      Filesize

      12KB

    • memory/3444-130-0x00000000009E0000-0x00000000009E3000-memory.dmp

      Filesize

      12KB

    • memory/4476-149-0x0000000000000000-mapping.dmp

    • memory/4692-138-0x0000000000000000-mapping.dmp

    • memory/4872-132-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

    • memory/4872-131-0x0000000000000000-mapping.dmp

    • memory/4872-142-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

    • memory/4872-135-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

    • memory/4872-134-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

    • memory/4872-137-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

    • memory/4872-136-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB