Analysis

  • max time kernel
    10s
  • max time network
    10s
  • 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 18:25

General

  • Target

    b1f38ef79742e99617096f5f5e223972c805a6006af4e29e9ae8bdee6b1a33c5.exe

  • Size

    424KB

  • MD5

    7ff229955a92a6ad6937118bcd9c1295

  • SHA1

    575d2346161618cde9a2ce04ea3ad762ed01fc64

  • SHA256

    b1f38ef79742e99617096f5f5e223972c805a6006af4e29e9ae8bdee6b1a33c5

  • SHA512

    e8ebd4a5f572ea6e20b3167cb690c5c207f7ee46d29aff5b05eb6e6baaf5ae2424fb1d73ab55f2b029b368ed9a77b3d6e0f330bf4ee57658f521522ee5e489a4

  • SSDEEP

    6144:NWmfUHQSVs1ZYi9Cz3cnPOqURF7T16kCQ4B1oyjqnVhyfVoXbftChXW3AxfulDGq:0mfUHQS0GiGc6R6kXP/nVAcblCJxfS6

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-2629973501-4017243118-3254762364-1000\_RECoVERY_+bmhll.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/6A3A8C95A1C362 2. http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/6A3A8C95A1C362 3. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/6A3A8C95A1C362 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/6A3A8C95A1C362 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/6A3A8C95A1C362 http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/6A3A8C95A1C362 http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/6A3A8C95A1C362 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/6A3A8C95A1C362
URLs

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/6A3A8C95A1C362

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/6A3A8C95A1C362

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/6A3A8C95A1C362

http://xlowfznrg4wf7dli.ONION/6A3A8C95A1C362

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 62 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\b1f38ef79742e99617096f5f5e223972c805a6006af4e29e9ae8bdee6b1a33c5.exe
    "C:\Users\Admin\AppData\Local\Temp\b1f38ef79742e99617096f5f5e223972c805a6006af4e29e9ae8bdee6b1a33c5.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:696
    • C:\Windows\qaqfewgnypnc.exe
      C:\Windows\qaqfewgnypnc.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:4604
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4380
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\B1F38E~1.EXE
      2⤵
        PID:1484
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3624

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\qaqfewgnypnc.exe

      Filesize

      424KB

      MD5

      7ff229955a92a6ad6937118bcd9c1295

      SHA1

      575d2346161618cde9a2ce04ea3ad762ed01fc64

      SHA256

      b1f38ef79742e99617096f5f5e223972c805a6006af4e29e9ae8bdee6b1a33c5

      SHA512

      e8ebd4a5f572ea6e20b3167cb690c5c207f7ee46d29aff5b05eb6e6baaf5ae2424fb1d73ab55f2b029b368ed9a77b3d6e0f330bf4ee57658f521522ee5e489a4

    • C:\Windows\qaqfewgnypnc.exe

      Filesize

      424KB

      MD5

      7ff229955a92a6ad6937118bcd9c1295

      SHA1

      575d2346161618cde9a2ce04ea3ad762ed01fc64

      SHA256

      b1f38ef79742e99617096f5f5e223972c805a6006af4e29e9ae8bdee6b1a33c5

      SHA512

      e8ebd4a5f572ea6e20b3167cb690c5c207f7ee46d29aff5b05eb6e6baaf5ae2424fb1d73ab55f2b029b368ed9a77b3d6e0f330bf4ee57658f521522ee5e489a4

    • memory/696-132-0x0000000000400000-0x00000000004AD000-memory.dmp

      Filesize

      692KB

    • memory/696-136-0x0000000000AE0000-0x0000000000B65000-memory.dmp

      Filesize

      532KB

    • memory/1484-140-0x0000000000000000-mapping.dmp

    • memory/4380-146-0x0000000000000000-mapping.dmp

    • memory/4604-137-0x0000000000000000-mapping.dmp

    • memory/4604-145-0x0000000002170000-0x00000000021F5000-memory.dmp

      Filesize

      532KB