Analysis

  • max time kernel
    11s
  • max time network
    14s
  • 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 03:50

General

  • Target

    9708ca827d149b1b4f392cbf2b6f8cea286e4e90dbaff77afcc9fc3adfce9d93.exe

  • Size

    500KB

  • MD5

    ba5e80f2d798e241471decd7fea5c32e

  • SHA1

    0a94f3a096002197befb9dd5e6611f0fba19cf8d

  • SHA256

    9708ca827d149b1b4f392cbf2b6f8cea286e4e90dbaff77afcc9fc3adfce9d93

  • SHA512

    ce193d58ff73fccc14e9afcb4a2c55a70f501f563cd0be3be878ee76aee94328f0956b88bf17ad3f585b3da08c2914828d5360f85ff8b0507bc9219733ba98ff

  • SSDEEP

    6144:a+5uzIF/dV6GdE98vJwvw8AWLG1qSrX6T26WyJNh:B5uzKdzd7RazYtT6Xh

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-929662420-1054238289-2961194603-1000\_ReCoVeRy_+hykbn.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://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/7912CF158DD5D6F2 2 - http://gfkuwflbhsjdabnu4nfukerfqwlfwr4rw.ringbalor.com/7912CF158DD5D6F2 3 - http://oehknf74ohqlfnpq9rhfgcq93g.hateflux.com/7912CF158DD5D6F2 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/7912CF158DD5D6F2 4 - Follow the instructions on the site IMPORTANT INFORMATION Your personal pages http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/7912CF158DD5D6F2 http://gfkuwflbhsjdabnu4nfukerfqwlfwr4rw.ringbalor.com/7912CF158DD5D6F2 http://oehknf74ohqlfnpq9rhfgcq93g.hateflux.com/7912CF158DD5D6F2 Your personal page Tor-Browser xlowfznrg4wf7dli.ONION/7912CF158DD5D6F2
URLs

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/7912CF158DD5D6F2

http://gfkuwflbhsjdabnu4nfukerfqwlfwr4rw.ringbalor.com/7912CF158DD5D6F2

http://oehknf74ohqlfnpq9rhfgcq93g.hateflux.com/7912CF158DD5D6F2

http://xlowfznrg4wf7dli.ONION/7912CF158DD5D6F2

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 44 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\9708ca827d149b1b4f392cbf2b6f8cea286e4e90dbaff77afcc9fc3adfce9d93.exe
    "C:\Users\Admin\AppData\Local\Temp\9708ca827d149b1b4f392cbf2b6f8cea286e4e90dbaff77afcc9fc3adfce9d93.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2820
    • C:\Windows\auetljartbom.exe
      C:\Windows\auetljartbom.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:1700
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4496
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\9708CA~1.EXE
      2⤵
        PID:2720
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1124

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\auetljartbom.exe

      Filesize

      500KB

      MD5

      ba5e80f2d798e241471decd7fea5c32e

      SHA1

      0a94f3a096002197befb9dd5e6611f0fba19cf8d

      SHA256

      9708ca827d149b1b4f392cbf2b6f8cea286e4e90dbaff77afcc9fc3adfce9d93

      SHA512

      ce193d58ff73fccc14e9afcb4a2c55a70f501f563cd0be3be878ee76aee94328f0956b88bf17ad3f585b3da08c2914828d5360f85ff8b0507bc9219733ba98ff

    • C:\Windows\auetljartbom.exe

      Filesize

      500KB

      MD5

      ba5e80f2d798e241471decd7fea5c32e

      SHA1

      0a94f3a096002197befb9dd5e6611f0fba19cf8d

      SHA256

      9708ca827d149b1b4f392cbf2b6f8cea286e4e90dbaff77afcc9fc3adfce9d93

      SHA512

      ce193d58ff73fccc14e9afcb4a2c55a70f501f563cd0be3be878ee76aee94328f0956b88bf17ad3f585b3da08c2914828d5360f85ff8b0507bc9219733ba98ff

    • memory/1700-136-0x0000000000000000-mapping.dmp

    • memory/1700-145-0x0000000002130000-0x00000000021B6000-memory.dmp

      Filesize

      536KB

    • memory/2720-140-0x0000000000000000-mapping.dmp

    • memory/2820-132-0x0000000000400000-0x00000000004CF000-memory.dmp

      Filesize

      828KB

    • memory/2820-138-0x00000000009D0000-0x0000000000A56000-memory.dmp

      Filesize

      536KB

    • memory/4496-146-0x0000000000000000-mapping.dmp