Analysis

  • max time kernel
    146s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220718-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220718-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-07-2022 19:52

General

  • Target

    4fd4f478b4d17316ab10a2a496caee51402bead71c92c48e83ed333d8ac09c72.exe

  • Size

    352KB

  • MD5

    730889ba766d40cf3db888f550785d06

  • SHA1

    44cd570d3232530b21d3e6afd7586d812ac3e858

  • SHA256

    4fd4f478b4d17316ab10a2a496caee51402bead71c92c48e83ed333d8ac09c72

  • SHA512

    922417af1d141685956cb6d064b1abf843cdc823755e136af2f78087dcf9390553c477a618ca83c10dc5e75fe3eac50f9e1472e61667487fb6f70a3f58df89ba

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-2783062828-828903012-4218294845-1000\Recovery+dyiqu.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/6182194AF92AEF6 2. http://tes543berda73i48fsdfsd.keratadze.at/6182194AF92AEF6 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/6182194AF92AEF6 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/6182194AF92AEF6 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/6182194AF92AEF6 http://tes543berda73i48fsdfsd.keratadze.at/6182194AF92AEF6 http://tt54rfdjhb34rfbnknaerg.milerteddy.com/6182194AF92AEF6 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/6182194AF92AEF6
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/6182194AF92AEF6

http://tes543berda73i48fsdfsd.keratadze.at/6182194AF92AEF6

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/6182194AF92AEF6

http://xlowfznrg4wf7dli.ONION/6182194AF92AEF6

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 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\4fd4f478b4d17316ab10a2a496caee51402bead71c92c48e83ed333d8ac09c72.exe
    "C:\Users\Admin\AppData\Local\Temp\4fd4f478b4d17316ab10a2a496caee51402bead71c92c48e83ed333d8ac09c72.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2640
    • C:\Users\Admin\AppData\Local\Temp\4fd4f478b4d17316ab10a2a496caee51402bead71c92c48e83ed333d8ac09c72.exe
      "C:\Users\Admin\AppData\Local\Temp\4fd4f478b4d17316ab10a2a496caee51402bead71c92c48e83ed333d8ac09c72.exe"
      2⤵
      • Checks computer location settings
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1236
      • C:\Windows\ptaqfghhrpwi.exe
        C:\Windows\ptaqfghhrpwi.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3300
        • C:\Windows\ptaqfghhrpwi.exe
          C:\Windows\ptaqfghhrpwi.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:720
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3668
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\4FD4F4~1.EXE
        3⤵
          PID:2460
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3996

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\ptaqfghhrpwi.exe

      Filesize

      352KB

      MD5

      730889ba766d40cf3db888f550785d06

      SHA1

      44cd570d3232530b21d3e6afd7586d812ac3e858

      SHA256

      4fd4f478b4d17316ab10a2a496caee51402bead71c92c48e83ed333d8ac09c72

      SHA512

      922417af1d141685956cb6d064b1abf843cdc823755e136af2f78087dcf9390553c477a618ca83c10dc5e75fe3eac50f9e1472e61667487fb6f70a3f58df89ba

    • C:\Windows\ptaqfghhrpwi.exe

      Filesize

      352KB

      MD5

      730889ba766d40cf3db888f550785d06

      SHA1

      44cd570d3232530b21d3e6afd7586d812ac3e858

      SHA256

      4fd4f478b4d17316ab10a2a496caee51402bead71c92c48e83ed333d8ac09c72

      SHA512

      922417af1d141685956cb6d064b1abf843cdc823755e136af2f78087dcf9390553c477a618ca83c10dc5e75fe3eac50f9e1472e61667487fb6f70a3f58df89ba

    • C:\Windows\ptaqfghhrpwi.exe

      Filesize

      352KB

      MD5

      730889ba766d40cf3db888f550785d06

      SHA1

      44cd570d3232530b21d3e6afd7586d812ac3e858

      SHA256

      4fd4f478b4d17316ab10a2a496caee51402bead71c92c48e83ed333d8ac09c72

      SHA512

      922417af1d141685956cb6d064b1abf843cdc823755e136af2f78087dcf9390553c477a618ca83c10dc5e75fe3eac50f9e1472e61667487fb6f70a3f58df89ba

    • memory/720-145-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/720-149-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/720-147-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/720-146-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/1236-139-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/1236-141-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/1236-132-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/1236-133-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/1236-135-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/2640-130-0x0000000000CD0000-0x0000000000CD3000-memory.dmp

      Filesize

      12KB

    • memory/2640-134-0x0000000000CD0000-0x0000000000CD3000-memory.dmp

      Filesize

      12KB