Analysis

  • max time kernel
    175s
  • max time network
    182s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220718-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220718-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-07-2022 17:13

General

  • Target

    4e90abdfc99b858205724c854478d92cca84194a5809f8a75e77a1694df19d69.exe

  • Size

    375KB

  • MD5

    47a349dd2ab3dde3fa0ec7c7364dd794

  • SHA1

    84f7080c82e16ff7ad72e86f949fefe6af567625

  • SHA256

    4e90abdfc99b858205724c854478d92cca84194a5809f8a75e77a1694df19d69

  • SHA512

    0fd9e1ce3ac5c89c69d268f981f7171a70dace77c1ec83bd1454312ab4cb3c7fd34e1e83853fff16c1395bacbd8c63a583eecc3ca9fbe7b4b406b4d6c3c8aa59

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-1178428168-2939480073-3055857545-1000\_RECoVERY_+rpfbj.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/8050C061CF654DD2 2. http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/8050C061CF654DD2 3. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/8050C061CF654DD2 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/8050C061CF654DD2 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/8050C061CF654DD2 http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/8050C061CF654DD2 http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/8050C061CF654DD2 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/8050C061CF654DD2
URLs

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/8050C061CF654DD2

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/8050C061CF654DD2

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/8050C061CF654DD2

http://xlowfznrg4wf7dli.ONION/8050C061CF654DD2

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 2 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
  • Suspicious use of SetThreadContext 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 47 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4e90abdfc99b858205724c854478d92cca84194a5809f8a75e77a1694df19d69.exe
    "C:\Users\Admin\AppData\Local\Temp\4e90abdfc99b858205724c854478d92cca84194a5809f8a75e77a1694df19d69.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:5040
    • C:\Users\Admin\AppData\Local\Temp\4e90abdfc99b858205724c854478d92cca84194a5809f8a75e77a1694df19d69.exe
      "C:\Users\Admin\AppData\Local\Temp\4e90abdfc99b858205724c854478d92cca84194a5809f8a75e77a1694df19d69.exe"
      2⤵
      • Checks computer location settings
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:892
      • C:\Windows\sequgmgrbxjq.exe
        C:\Windows\sequgmgrbxjq.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4168
        • C:\Windows\sequgmgrbxjq.exe
          C:\Windows\sequgmgrbxjq.exe
          4⤵
          • 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:3424
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3848
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\4E90AB~1.EXE
        3⤵
          PID:752
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4400

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\sequgmgrbxjq.exe

      Filesize

      375KB

      MD5

      47a349dd2ab3dde3fa0ec7c7364dd794

      SHA1

      84f7080c82e16ff7ad72e86f949fefe6af567625

      SHA256

      4e90abdfc99b858205724c854478d92cca84194a5809f8a75e77a1694df19d69

      SHA512

      0fd9e1ce3ac5c89c69d268f981f7171a70dace77c1ec83bd1454312ab4cb3c7fd34e1e83853fff16c1395bacbd8c63a583eecc3ca9fbe7b4b406b4d6c3c8aa59

    • C:\Windows\sequgmgrbxjq.exe

      Filesize

      375KB

      MD5

      47a349dd2ab3dde3fa0ec7c7364dd794

      SHA1

      84f7080c82e16ff7ad72e86f949fefe6af567625

      SHA256

      4e90abdfc99b858205724c854478d92cca84194a5809f8a75e77a1694df19d69

      SHA512

      0fd9e1ce3ac5c89c69d268f981f7171a70dace77c1ec83bd1454312ab4cb3c7fd34e1e83853fff16c1395bacbd8c63a583eecc3ca9fbe7b4b406b4d6c3c8aa59

    • C:\Windows\sequgmgrbxjq.exe

      Filesize

      375KB

      MD5

      47a349dd2ab3dde3fa0ec7c7364dd794

      SHA1

      84f7080c82e16ff7ad72e86f949fefe6af567625

      SHA256

      4e90abdfc99b858205724c854478d92cca84194a5809f8a75e77a1694df19d69

      SHA512

      0fd9e1ce3ac5c89c69d268f981f7171a70dace77c1ec83bd1454312ab4cb3c7fd34e1e83853fff16c1395bacbd8c63a583eecc3ca9fbe7b4b406b4d6c3c8aa59

    • memory/892-135-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/892-136-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/892-137-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/892-133-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/892-142-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/3424-148-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/3424-150-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/3424-146-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/3424-147-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

    • memory/5040-134-0x0000000000610000-0x0000000000614000-memory.dmp

      Filesize

      16KB

    • memory/5040-131-0x0000000000610000-0x0000000000614000-memory.dmp

      Filesize

      16KB

    • memory/5040-130-0x0000000000610000-0x0000000000614000-memory.dmp

      Filesize

      16KB