Analysis

  • max time kernel
    150s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    07-07-2022 21:13

General

  • Target

    43f7c5f99bc4f8e92f8e9fe6ad6bbcb13aa996cb3057fa2e509ec564d1b5b515.exe

  • Size

    336KB

  • MD5

    2c213eac311b385bba88f42c04a5ba73

  • SHA1

    eb1ef4ab7662e500b0641fd9a1850b30da181908

  • SHA256

    43f7c5f99bc4f8e92f8e9fe6ad6bbcb13aa996cb3057fa2e509ec564d1b5b515

  • SHA512

    f03e8a10e1054312a2ef18e374b97f2d28fa28ba470bfafa1c6a5026c87e08c3e6eab7914fec0da8255c5246614068c61450e921760a48c7c5c6b378ebe13c74

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-1819626980-2277161760-1023733287-1000\Recovery+wdkkx.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://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/5D2512473AEA1D2 2. http://tes543berda73i48fsdfsd.keratadze.at/5D2512473AEA1D2 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/5D2512473AEA1D2 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/5D2512473AEA1D2 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/5D2512473AEA1D2 http://tes543berda73i48fsdfsd.keratadze.at/5D2512473AEA1D2 http://tt54rfdjhb34rfbnknaerg.milerteddy.com/5D2512473AEA1D2 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/5D2512473AEA1D2
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/5D2512473AEA1D2

http://tes543berda73i48fsdfsd.keratadze.at/5D2512473AEA1D2

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/5D2512473AEA1D2

http://xlowfznrg4wf7dli.ONION/5D2512473AEA1D2

Signatures

  • TeslaCrypt, AlphaCrypt

    Ransomware based on CryptoLocker. Shut down by the developers in 2016.

  • suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon

    suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • 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.

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\43f7c5f99bc4f8e92f8e9fe6ad6bbcb13aa996cb3057fa2e509ec564d1b5b515.exe
    "C:\Users\Admin\AppData\Local\Temp\43f7c5f99bc4f8e92f8e9fe6ad6bbcb13aa996cb3057fa2e509ec564d1b5b515.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1948
    • C:\Users\Admin\AppData\Local\Temp\43f7c5f99bc4f8e92f8e9fe6ad6bbcb13aa996cb3057fa2e509ec564d1b5b515.exe
      "C:\Users\Admin\AppData\Local\Temp\43f7c5f99bc4f8e92f8e9fe6ad6bbcb13aa996cb3057fa2e509ec564d1b5b515.exe"
      2⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1016
      • C:\Windows\lycexmikkggt.exe
        C:\Windows\lycexmikkggt.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1712
        • C:\Windows\lycexmikkggt.exe
          C:\Windows\lycexmikkggt.exe
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in Program Files directory
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          • System policy modification
          PID:1864
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:896
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\43F7C5~1.EXE
        3⤵
        • Deletes itself
        PID:940
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1940

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\lycexmikkggt.exe

    Filesize

    336KB

    MD5

    2c213eac311b385bba88f42c04a5ba73

    SHA1

    eb1ef4ab7662e500b0641fd9a1850b30da181908

    SHA256

    43f7c5f99bc4f8e92f8e9fe6ad6bbcb13aa996cb3057fa2e509ec564d1b5b515

    SHA512

    f03e8a10e1054312a2ef18e374b97f2d28fa28ba470bfafa1c6a5026c87e08c3e6eab7914fec0da8255c5246614068c61450e921760a48c7c5c6b378ebe13c74

  • C:\Windows\lycexmikkggt.exe

    Filesize

    336KB

    MD5

    2c213eac311b385bba88f42c04a5ba73

    SHA1

    eb1ef4ab7662e500b0641fd9a1850b30da181908

    SHA256

    43f7c5f99bc4f8e92f8e9fe6ad6bbcb13aa996cb3057fa2e509ec564d1b5b515

    SHA512

    f03e8a10e1054312a2ef18e374b97f2d28fa28ba470bfafa1c6a5026c87e08c3e6eab7914fec0da8255c5246614068c61450e921760a48c7c5c6b378ebe13c74

  • C:\Windows\lycexmikkggt.exe

    Filesize

    336KB

    MD5

    2c213eac311b385bba88f42c04a5ba73

    SHA1

    eb1ef4ab7662e500b0641fd9a1850b30da181908

    SHA256

    43f7c5f99bc4f8e92f8e9fe6ad6bbcb13aa996cb3057fa2e509ec564d1b5b515

    SHA512

    f03e8a10e1054312a2ef18e374b97f2d28fa28ba470bfafa1c6a5026c87e08c3e6eab7914fec0da8255c5246614068c61450e921760a48c7c5c6b378ebe13c74

  • memory/896-93-0x0000000000000000-mapping.dmp

  • memory/940-73-0x0000000000000000-mapping.dmp

  • memory/1016-69-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1016-56-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1016-65-0x0000000000435BA8-mapping.dmp

  • memory/1016-55-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1016-68-0x0000000075401000-0x0000000075403000-memory.dmp

    Filesize

    8KB

  • memory/1016-64-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1016-70-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1016-58-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1016-62-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1016-60-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1016-74-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1712-71-0x0000000000000000-mapping.dmp

  • memory/1864-86-0x0000000000435BA8-mapping.dmp

  • memory/1864-90-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1864-91-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1864-92-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1948-54-0x00000000002D0000-0x00000000002D3000-memory.dmp

    Filesize

    12KB

  • memory/1948-67-0x00000000002D0000-0x00000000002D3000-memory.dmp

    Filesize

    12KB