Analysis

  • max time kernel
    32s
  • max time network
    36s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-10-2022 12:41

General

  • Target

    4abdace85327c89f59a735500b0bdaf46a19836dea447febf9003c9be54d7a24.exe

  • Size

    424KB

  • MD5

    bd62e5f337506c58955c6cbd644239e0

  • SHA1

    22aea8553c104e98c13cc8959497632ce3fecb3e

  • SHA256

    4abdace85327c89f59a735500b0bdaf46a19836dea447febf9003c9be54d7a24

  • SHA512

    bab3394cecb282ef415a63a6e971f9108094109b41512feb60f7976463cc3d927e6fbd7b58b092e1027da2e92d2c122a2dcd859237978e49f0bb95dd3342ee0e

  • SSDEEP

    12288:tmJqaEwQLysD/XDz3qzRdW1DzHpblCJxfS6:tgMLyWDbkElOR1

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-2629973501-4017243118-3254762364-1000\_RECoVERY_+abkob.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/36BAE7A85EB8CA3 2. http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/36BAE7A85EB8CA3 3. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/36BAE7A85EB8CA3 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/36BAE7A85EB8CA3 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/36BAE7A85EB8CA3 http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/36BAE7A85EB8CA3 http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/36BAE7A85EB8CA3 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/36BAE7A85EB8CA3
URLs

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/36BAE7A85EB8CA3

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/36BAE7A85EB8CA3

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/36BAE7A85EB8CA3

http://xlowfznrg4wf7dli.ONION/36BAE7A85EB8CA3

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 58 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\4abdace85327c89f59a735500b0bdaf46a19836dea447febf9003c9be54d7a24.exe
    "C:\Users\Admin\AppData\Local\Temp\4abdace85327c89f59a735500b0bdaf46a19836dea447febf9003c9be54d7a24.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2748
    • C:\Windows\aammhudxqcfe.exe
      C:\Windows\aammhudxqcfe.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:1144
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:5012
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\4ABDAC~1.EXE
      2⤵
        PID:4712
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4228

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\aammhudxqcfe.exe

      Filesize

      424KB

      MD5

      bd62e5f337506c58955c6cbd644239e0

      SHA1

      22aea8553c104e98c13cc8959497632ce3fecb3e

      SHA256

      4abdace85327c89f59a735500b0bdaf46a19836dea447febf9003c9be54d7a24

      SHA512

      bab3394cecb282ef415a63a6e971f9108094109b41512feb60f7976463cc3d927e6fbd7b58b092e1027da2e92d2c122a2dcd859237978e49f0bb95dd3342ee0e

    • C:\Windows\aammhudxqcfe.exe

      Filesize

      424KB

      MD5

      bd62e5f337506c58955c6cbd644239e0

      SHA1

      22aea8553c104e98c13cc8959497632ce3fecb3e

      SHA256

      4abdace85327c89f59a735500b0bdaf46a19836dea447febf9003c9be54d7a24

      SHA512

      bab3394cecb282ef415a63a6e971f9108094109b41512feb60f7976463cc3d927e6fbd7b58b092e1027da2e92d2c122a2dcd859237978e49f0bb95dd3342ee0e

    • memory/1144-136-0x0000000000000000-mapping.dmp

    • memory/1144-145-0x0000000000970000-0x00000000009F5000-memory.dmp

      Filesize

      532KB

    • memory/2748-132-0x0000000000400000-0x00000000004AD000-memory.dmp

      Filesize

      692KB

    • memory/2748-139-0x0000000002290000-0x0000000002315000-memory.dmp

      Filesize

      532KB

    • memory/4712-140-0x0000000000000000-mapping.dmp

    • memory/5012-146-0x0000000000000000-mapping.dmp