Analysis

  • max time kernel
    11s
  • max time network
    13s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-10-2022 11:08

General

  • Target

    959e00c0c76312f723b4a88fcf8862adfbcb9fa7e1a6cae713a0d5c2a54d68f9.exe

  • Size

    424KB

  • MD5

    f5e9a3d66d35d6c1c6f2b8c99614c8f0

  • SHA1

    fadaa7d740e8e0564e93ba5cfe7183bf8e145c3f

  • SHA256

    959e00c0c76312f723b4a88fcf8862adfbcb9fa7e1a6cae713a0d5c2a54d68f9

  • SHA512

    eab27f6961fa582bf5a188fe0746f27adf3b01655a72f5af514181db2c9669a732e76cbd400f05b5b59dd026f22f7a56c8198316fb4223bbf0b8eda5c2cdc731

  • SSDEEP

    12288:bmJqaEwQLysD/XDz3qzRdW1DzHpblCJxfS6:bgMLyWDbkElOR1

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-2295526160-1155304984-640977766-1000\_RECoVERY_+oxraf.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://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/1AD3B6EA4C99F69A 2. http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/1AD3B6EA4C99F69A 3. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/1AD3B6EA4C99F69A 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/1AD3B6EA4C99F69A 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/1AD3B6EA4C99F69A http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/1AD3B6EA4C99F69A http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/1AD3B6EA4C99F69A *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/1AD3B6EA4C99F69A
URLs

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/1AD3B6EA4C99F69A

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/1AD3B6EA4C99F69A

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/1AD3B6EA4C99F69A

http://xlowfznrg4wf7dli.ONION/1AD3B6EA4C99F69A

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 52 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\959e00c0c76312f723b4a88fcf8862adfbcb9fa7e1a6cae713a0d5c2a54d68f9.exe
    "C:\Users\Admin\AppData\Local\Temp\959e00c0c76312f723b4a88fcf8862adfbcb9fa7e1a6cae713a0d5c2a54d68f9.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2348
    • C:\Windows\jwyudkvmkrkb.exe
      C:\Windows\jwyudkvmkrkb.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:1920
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1840
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\959E00~1.EXE
      2⤵
        PID:1904
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4932

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\jwyudkvmkrkb.exe

      Filesize

      424KB

      MD5

      f5e9a3d66d35d6c1c6f2b8c99614c8f0

      SHA1

      fadaa7d740e8e0564e93ba5cfe7183bf8e145c3f

      SHA256

      959e00c0c76312f723b4a88fcf8862adfbcb9fa7e1a6cae713a0d5c2a54d68f9

      SHA512

      eab27f6961fa582bf5a188fe0746f27adf3b01655a72f5af514181db2c9669a732e76cbd400f05b5b59dd026f22f7a56c8198316fb4223bbf0b8eda5c2cdc731

    • C:\Windows\jwyudkvmkrkb.exe

      Filesize

      424KB

      MD5

      f5e9a3d66d35d6c1c6f2b8c99614c8f0

      SHA1

      fadaa7d740e8e0564e93ba5cfe7183bf8e145c3f

      SHA256

      959e00c0c76312f723b4a88fcf8862adfbcb9fa7e1a6cae713a0d5c2a54d68f9

      SHA512

      eab27f6961fa582bf5a188fe0746f27adf3b01655a72f5af514181db2c9669a732e76cbd400f05b5b59dd026f22f7a56c8198316fb4223bbf0b8eda5c2cdc731

    • memory/1920-146-0x00000000021C0000-0x0000000002245000-memory.dmp

      Filesize

      532KB

    • memory/2348-132-0x00000000022B0000-0x0000000002335000-memory.dmp

      Filesize

      532KB

    • memory/2348-133-0x0000000000400000-0x00000000004AD000-memory.dmp

      Filesize

      692KB

    • memory/2348-141-0x00000000022B0000-0x0000000002335000-memory.dmp

      Filesize

      532KB