Analysis

  • max time kernel
    12s
  • max time network
    15s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-10-2022 05:42

General

  • Target

    72ebc64f86ef3c07e200b7b575c87baec6b150340b58dc948d4c15390a7a52a5.exe

  • Size

    424KB

  • MD5

    325f660b6e6802581315052c0d9b190c

  • SHA1

    48b6692d89e64f513a48b51dc84bf14cb535b84b

  • SHA256

    72ebc64f86ef3c07e200b7b575c87baec6b150340b58dc948d4c15390a7a52a5

  • SHA512

    bdf1800aaa75effe7faeaf65fc253588253333408d7f623b923dd741b4778512f666e0b26fecdda3a51b1e3fa27c377f4a7d77ab37bfbd1c1612c5d4a497939d

  • SSDEEP

    12288:Zj6qMoki2//HuarKqen05/QexvmBG3zbblCJxfS6:ZjPQ/HdQoq2fOR1

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-929662420-1054238289-2961194603-1000\_RECoVERY_+dfaer.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 RSA4096 More information about the encryption keys using RSA4096 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) How did this happen ? !!! Specially for your PC was generated personal RSA4096 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/F3E1CB5427CBCA2A 2. http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/F3E1CB5427CBCA2A 3. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/F3E1CB5427CBCA2A 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/F3E1CB5427CBCA2A 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/F3E1CB5427CBCA2A http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/F3E1CB5427CBCA2A http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/F3E1CB5427CBCA2A *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/F3E1CB5427CBCA2A
URLs

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/F3E1CB5427CBCA2A

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/F3E1CB5427CBCA2A

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/F3E1CB5427CBCA2A

http://xlowfznrg4wf7dli.ONION/F3E1CB5427CBCA2A

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 48 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\72ebc64f86ef3c07e200b7b575c87baec6b150340b58dc948d4c15390a7a52a5.exe
    "C:\Users\Admin\AppData\Local\Temp\72ebc64f86ef3c07e200b7b575c87baec6b150340b58dc948d4c15390a7a52a5.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1128
    • C:\Windows\mjxokffihtoq.exe
      C:\Windows\mjxokffihtoq.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:2236
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4436
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\72EBC6~1.EXE
      2⤵
        PID:4460
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3108

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\mjxokffihtoq.exe

      Filesize

      424KB

      MD5

      325f660b6e6802581315052c0d9b190c

      SHA1

      48b6692d89e64f513a48b51dc84bf14cb535b84b

      SHA256

      72ebc64f86ef3c07e200b7b575c87baec6b150340b58dc948d4c15390a7a52a5

      SHA512

      bdf1800aaa75effe7faeaf65fc253588253333408d7f623b923dd741b4778512f666e0b26fecdda3a51b1e3fa27c377f4a7d77ab37bfbd1c1612c5d4a497939d

    • C:\Windows\mjxokffihtoq.exe

      Filesize

      424KB

      MD5

      325f660b6e6802581315052c0d9b190c

      SHA1

      48b6692d89e64f513a48b51dc84bf14cb535b84b

      SHA256

      72ebc64f86ef3c07e200b7b575c87baec6b150340b58dc948d4c15390a7a52a5

      SHA512

      bdf1800aaa75effe7faeaf65fc253588253333408d7f623b923dd741b4778512f666e0b26fecdda3a51b1e3fa27c377f4a7d77ab37bfbd1c1612c5d4a497939d

    • memory/1128-132-0x0000000002260000-0x00000000022E4000-memory.dmp

      Filesize

      528KB

    • memory/1128-133-0x0000000000400000-0x00000000004AD000-memory.dmp

      Filesize

      692KB

    • memory/1128-141-0x0000000002260000-0x00000000022E4000-memory.dmp

      Filesize

      528KB

    • memory/2236-137-0x0000000000000000-mapping.dmp

    • memory/2236-146-0x0000000002100000-0x0000000002184000-memory.dmp

      Filesize

      528KB

    • memory/4436-147-0x0000000000000000-mapping.dmp

    • memory/4460-140-0x0000000000000000-mapping.dmp