Analysis

  • max time kernel
    158s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    03-07-2022 18:19

General

  • Target

    3af2655c4fc69d0ac9713bc32d00950a3f62e46bfacfec63d9028a8659fcd245.exe

  • Size

    424KB

  • MD5

    1f6c2ee7195acf760cb3be66590d70fb

  • SHA1

    483fe52b42e290a146b9b01ddd0aed4615a31508

  • SHA256

    3af2655c4fc69d0ac9713bc32d00950a3f62e46bfacfec63d9028a8659fcd245

  • SHA512

    a0fb9d84671c5db5dce2482a5b348b7ebc6d8af5cd098304c3ce43fa34f58aff15c90daaedeef5ddb2f852b44aba67b88fda69631a07ce88b4869fdee1f86934

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-1083475884-596052423-1669053738-1000\_RECoVERY_+uwuhg.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/EB202A70418E531F 2. http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/EB202A70418E531F 3. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/EB202A70418E531F 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/EB202A70418E531F 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/EB202A70418E531F http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/EB202A70418E531F http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/EB202A70418E531F *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/EB202A70418E531F
URLs

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/EB202A70418E531F

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/EB202A70418E531F

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/EB202A70418E531F

http://xlowfznrg4wf7dli.ONION/EB202A70418E531F

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 1 IoCs
  • Deletes itself 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Program Files directory 56 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 12 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3af2655c4fc69d0ac9713bc32d00950a3f62e46bfacfec63d9028a8659fcd245.exe
    "C:\Users\Admin\AppData\Local\Temp\3af2655c4fc69d0ac9713bc32d00950a3f62e46bfacfec63d9028a8659fcd245.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:272
    • C:\Windows\gifgtqirggym.exe
      C:\Windows\gifgtqirggym.exe
      2⤵
      • 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:1100
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:276
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\3AF265~1.EXE
      2⤵
      • Deletes itself
      PID:1032
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:600

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\gifgtqirggym.exe

    Filesize

    424KB

    MD5

    1f6c2ee7195acf760cb3be66590d70fb

    SHA1

    483fe52b42e290a146b9b01ddd0aed4615a31508

    SHA256

    3af2655c4fc69d0ac9713bc32d00950a3f62e46bfacfec63d9028a8659fcd245

    SHA512

    a0fb9d84671c5db5dce2482a5b348b7ebc6d8af5cd098304c3ce43fa34f58aff15c90daaedeef5ddb2f852b44aba67b88fda69631a07ce88b4869fdee1f86934

  • C:\Windows\gifgtqirggym.exe

    Filesize

    424KB

    MD5

    1f6c2ee7195acf760cb3be66590d70fb

    SHA1

    483fe52b42e290a146b9b01ddd0aed4615a31508

    SHA256

    3af2655c4fc69d0ac9713bc32d00950a3f62e46bfacfec63d9028a8659fcd245

    SHA512

    a0fb9d84671c5db5dce2482a5b348b7ebc6d8af5cd098304c3ce43fa34f58aff15c90daaedeef5ddb2f852b44aba67b88fda69631a07ce88b4869fdee1f86934

  • memory/272-54-0x0000000075951000-0x0000000075953000-memory.dmp

    Filesize

    8KB

  • memory/272-55-0x0000000000400000-0x00000000004AD000-memory.dmp

    Filesize

    692KB

  • memory/272-59-0x0000000000300000-0x0000000000385000-memory.dmp

    Filesize

    532KB

  • memory/276-70-0x0000000000000000-mapping.dmp

  • memory/1032-63-0x0000000000000000-mapping.dmp

  • memory/1100-60-0x0000000000000000-mapping.dmp

  • memory/1100-64-0x0000000000400000-0x00000000004AD000-memory.dmp

    Filesize

    692KB

  • memory/1100-68-0x0000000001C40000-0x0000000001CC5000-memory.dmp

    Filesize

    532KB