Analysis

  • max time kernel
    186s
  • max time network
    197s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-07-2022 19:54

General

  • Target

    5e90b0042516378587887492a531d8e4b51d980db077bc1667c96119729c4f11.exe

  • Size

    332KB

  • MD5

    4aa08e4766abef7fa2cc773b92dab8c5

  • SHA1

    08981143807da8646bb7f5ae81e9081898a8d850

  • SHA256

    5e90b0042516378587887492a531d8e4b51d980db077bc1667c96119729c4f11

  • SHA512

    455210513993d12902b32375844f0008ffb262c82e30e26650b5c72c7ff7d6e9c674737a717a116ab2f8b5646b67779e17c59e6cbc06458721d5a74bfe32bb08

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-1101907861-274115917-2188613224-1000\_RECOVERY_+vjjdy.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/5E2253315786DEE1 2. http://tes543berda73i48fsdfsd.keratadze.at/5E2253315786DEE1 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/5E2253315786DEE1 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/5E2253315786DEE1 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/5E2253315786DEE1 http://tes543berda73i48fsdfsd.keratadze.at/5E2253315786DEE1 http://tt54rfdjhb34rfbnknaerg.milerteddy.com/5E2253315786DEE1 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/5E2253315786DEE1
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/5E2253315786DEE1

http://tes543berda73i48fsdfsd.keratadze.at/5E2253315786DEE1

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/5E2253315786DEE1

http://xlowfznrg4wf7dli.ONION/5E2253315786DEE1

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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\5e90b0042516378587887492a531d8e4b51d980db077bc1667c96119729c4f11.exe
    "C:\Users\Admin\AppData\Local\Temp\5e90b0042516378587887492a531d8e4b51d980db077bc1667c96119729c4f11.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4212
    • C:\Windows\dmaodemoydes.exe
      C:\Windows\dmaodemoydes.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:2908
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:824
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\5E90B0~1.EXE
      2⤵
        PID:4120
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4580

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\dmaodemoydes.exe

      Filesize

      332KB

      MD5

      4aa08e4766abef7fa2cc773b92dab8c5

      SHA1

      08981143807da8646bb7f5ae81e9081898a8d850

      SHA256

      5e90b0042516378587887492a531d8e4b51d980db077bc1667c96119729c4f11

      SHA512

      455210513993d12902b32375844f0008ffb262c82e30e26650b5c72c7ff7d6e9c674737a717a116ab2f8b5646b67779e17c59e6cbc06458721d5a74bfe32bb08

    • C:\Windows\dmaodemoydes.exe

      Filesize

      332KB

      MD5

      4aa08e4766abef7fa2cc773b92dab8c5

      SHA1

      08981143807da8646bb7f5ae81e9081898a8d850

      SHA256

      5e90b0042516378587887492a531d8e4b51d980db077bc1667c96119729c4f11

      SHA512

      455210513993d12902b32375844f0008ffb262c82e30e26650b5c72c7ff7d6e9c674737a717a116ab2f8b5646b67779e17c59e6cbc06458721d5a74bfe32bb08

    • memory/824-144-0x0000000000000000-mapping.dmp

    • memory/2908-135-0x0000000000000000-mapping.dmp

    • memory/2908-142-0x0000000002170000-0x00000000021F5000-memory.dmp

      Filesize

      532KB

    • memory/4120-143-0x0000000000000000-mapping.dmp

    • memory/4212-130-0x0000000000400000-0x0000000000497000-memory.dmp

      Filesize

      604KB

    • memory/4212-134-0x0000000000AB0000-0x0000000000B35000-memory.dmp

      Filesize

      532KB