Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20220715-en
  • resource tags

    arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system
  • submitted
    01-08-2022 05:15

General

  • Target

    5ccd792bd2288d32bf5ab28b6be3aa6ba5c0a74fdecc236c8f64abcbbf5b2021.exe

  • Size

    374KB

  • MD5

    66cf2f53a28aa0f168abb241dc6467d2

  • SHA1

    7709554dbfcab5afe50d2a94d6c94d7913337368

  • SHA256

    5ccd792bd2288d32bf5ab28b6be3aa6ba5c0a74fdecc236c8f64abcbbf5b2021

  • SHA512

    92f4e85ebc70bf3d625cf3a672c42a50ac105fe1498d4a2078c2bb1757f50b59b84ce0c68443e68a5d113f9ed90eca53c195016b85461a8f75f34baf552633b8

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-3440072777-2118400376-1759599358-1000\_RECoVERY_+eeffq.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://yyre45dbvn2nhbefbmh.begumvelic.at/C0B18E9813B8BE95 2. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/C0B18E9813B8BE95 3. http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/C0B18E9813B8BE95 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/C0B18E9813B8BE95 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://yyre45dbvn2nhbefbmh.begumvelic.at/C0B18E9813B8BE95 http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/C0B18E9813B8BE95 http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/C0B18E9813B8BE95 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/C0B18E9813B8BE95
URLs

http://yyre45dbvn2nhbefbmh.begumvelic.at/C0B18E9813B8BE95

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/C0B18E9813B8BE95

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/C0B18E9813B8BE95

http://xlowfznrg4wf7dli.ONION/C0B18E9813B8BE95

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
  • 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\5ccd792bd2288d32bf5ab28b6be3aa6ba5c0a74fdecc236c8f64abcbbf5b2021.exe
    "C:\Users\Admin\AppData\Local\Temp\5ccd792bd2288d32bf5ab28b6be3aa6ba5c0a74fdecc236c8f64abcbbf5b2021.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1832
    • C:\Users\Admin\AppData\Local\Temp\5ccd792bd2288d32bf5ab28b6be3aa6ba5c0a74fdecc236c8f64abcbbf5b2021.exe
      "C:\Users\Admin\AppData\Local\Temp\5ccd792bd2288d32bf5ab28b6be3aa6ba5c0a74fdecc236c8f64abcbbf5b2021.exe"
      2⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1408
      • C:\Windows\ppfjenmhxjor.exe
        C:\Windows\ppfjenmhxjor.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1112
        • C:\Windows\ppfjenmhxjor.exe
          C:\Windows\ppfjenmhxjor.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:1912
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:460
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\5CCD79~1.EXE
        3⤵
        • Deletes itself
        PID:1756
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1988

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\ppfjenmhxjor.exe

    Filesize

    374KB

    MD5

    66cf2f53a28aa0f168abb241dc6467d2

    SHA1

    7709554dbfcab5afe50d2a94d6c94d7913337368

    SHA256

    5ccd792bd2288d32bf5ab28b6be3aa6ba5c0a74fdecc236c8f64abcbbf5b2021

    SHA512

    92f4e85ebc70bf3d625cf3a672c42a50ac105fe1498d4a2078c2bb1757f50b59b84ce0c68443e68a5d113f9ed90eca53c195016b85461a8f75f34baf552633b8

  • C:\Windows\ppfjenmhxjor.exe

    Filesize

    374KB

    MD5

    66cf2f53a28aa0f168abb241dc6467d2

    SHA1

    7709554dbfcab5afe50d2a94d6c94d7913337368

    SHA256

    5ccd792bd2288d32bf5ab28b6be3aa6ba5c0a74fdecc236c8f64abcbbf5b2021

    SHA512

    92f4e85ebc70bf3d625cf3a672c42a50ac105fe1498d4a2078c2bb1757f50b59b84ce0c68443e68a5d113f9ed90eca53c195016b85461a8f75f34baf552633b8

  • C:\Windows\ppfjenmhxjor.exe

    Filesize

    374KB

    MD5

    66cf2f53a28aa0f168abb241dc6467d2

    SHA1

    7709554dbfcab5afe50d2a94d6c94d7913337368

    SHA256

    5ccd792bd2288d32bf5ab28b6be3aa6ba5c0a74fdecc236c8f64abcbbf5b2021

    SHA512

    92f4e85ebc70bf3d625cf3a672c42a50ac105fe1498d4a2078c2bb1757f50b59b84ce0c68443e68a5d113f9ed90eca53c195016b85461a8f75f34baf552633b8

  • memory/460-93-0x0000000000000000-mapping.dmp

  • memory/1112-71-0x0000000000000000-mapping.dmp

  • memory/1408-69-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1408-56-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1408-55-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1408-65-0x000000000041613C-mapping.dmp

  • memory/1408-68-0x0000000075741000-0x0000000075743000-memory.dmp

    Filesize

    8KB

  • memory/1408-64-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1408-70-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1408-62-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1408-60-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1408-74-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1408-58-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1756-73-0x0000000000000000-mapping.dmp

  • memory/1832-54-0x0000000000270000-0x0000000000273000-memory.dmp

    Filesize

    12KB

  • memory/1832-67-0x0000000000270000-0x0000000000273000-memory.dmp

    Filesize

    12KB

  • memory/1912-86-0x000000000041613C-mapping.dmp

  • memory/1912-90-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1912-91-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1912-92-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB