Analysis

  • max time kernel
    151s
  • max time network
    169s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    25-07-2022 20:21

General

  • Target

    5415c6c499d5791b1fab865ed585fbc9fa53a9bb8e007996613f87c03fe9737d.exe

  • Size

    369KB

  • MD5

    801007e070cb6f865d032d7ea4f1993a

  • SHA1

    7db8b3711c6560bba07467981284502aaf28e58e

  • SHA256

    5415c6c499d5791b1fab865ed585fbc9fa53a9bb8e007996613f87c03fe9737d

  • SHA512

    3c7681973d54e58558a3f673a8882117926dfdc166d304444e8e234a1505f4c23fcc87a48b67235241d9b5f99db507e493f0f6db1fa3aebdd19c7f1e437637bf

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-4084403625-2215941253-1760665084-1000\_RECOVERY_+dvbru.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/9B23B0552B3EA490 2. http://tes543berda73i48fsdfsd.keratadze.at/9B23B0552B3EA490 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/9B23B0552B3EA490 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/9B23B0552B3EA490 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/9B23B0552B3EA490 http://tes543berda73i48fsdfsd.keratadze.at/9B23B0552B3EA490 http://tt54rfdjhb34rfbnknaerg.milerteddy.com/9B23B0552B3EA490 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/9B23B0552B3EA490
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/9B23B0552B3EA490

http://tes543berda73i48fsdfsd.keratadze.at/9B23B0552B3EA490

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/9B23B0552B3EA490

http://xlowfznrg4wf7dli.ONION/9B23B0552B3EA490

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 4 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\5415c6c499d5791b1fab865ed585fbc9fa53a9bb8e007996613f87c03fe9737d.exe
    "C:\Users\Admin\AppData\Local\Temp\5415c6c499d5791b1fab865ed585fbc9fa53a9bb8e007996613f87c03fe9737d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Users\Admin\AppData\Local\Temp\5415c6c499d5791b1fab865ed585fbc9fa53a9bb8e007996613f87c03fe9737d.exe
      "C:\Users\Admin\AppData\Local\Temp\5415c6c499d5791b1fab865ed585fbc9fa53a9bb8e007996613f87c03fe9737d.exe"
      2⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:940
      • C:\Windows\hxdbnthvgdfr.exe
        C:\Windows\hxdbnthvgdfr.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1344
        • C:\Windows\hxdbnthvgdfr.exe
          C:\Windows\hxdbnthvgdfr.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:268
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:768
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\5415C6~1.EXE
        3⤵
        • Deletes itself
        PID:832
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1252

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\hxdbnthvgdfr.exe

    Filesize

    369KB

    MD5

    801007e070cb6f865d032d7ea4f1993a

    SHA1

    7db8b3711c6560bba07467981284502aaf28e58e

    SHA256

    5415c6c499d5791b1fab865ed585fbc9fa53a9bb8e007996613f87c03fe9737d

    SHA512

    3c7681973d54e58558a3f673a8882117926dfdc166d304444e8e234a1505f4c23fcc87a48b67235241d9b5f99db507e493f0f6db1fa3aebdd19c7f1e437637bf

  • C:\Windows\hxdbnthvgdfr.exe

    Filesize

    369KB

    MD5

    801007e070cb6f865d032d7ea4f1993a

    SHA1

    7db8b3711c6560bba07467981284502aaf28e58e

    SHA256

    5415c6c499d5791b1fab865ed585fbc9fa53a9bb8e007996613f87c03fe9737d

    SHA512

    3c7681973d54e58558a3f673a8882117926dfdc166d304444e8e234a1505f4c23fcc87a48b67235241d9b5f99db507e493f0f6db1fa3aebdd19c7f1e437637bf

  • C:\Windows\hxdbnthvgdfr.exe

    Filesize

    369KB

    MD5

    801007e070cb6f865d032d7ea4f1993a

    SHA1

    7db8b3711c6560bba07467981284502aaf28e58e

    SHA256

    5415c6c499d5791b1fab865ed585fbc9fa53a9bb8e007996613f87c03fe9737d

    SHA512

    3c7681973d54e58558a3f673a8882117926dfdc166d304444e8e234a1505f4c23fcc87a48b67235241d9b5f99db507e493f0f6db1fa3aebdd19c7f1e437637bf

  • memory/268-92-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/268-91-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/268-90-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/940-69-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/940-70-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/940-55-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/940-68-0x0000000075271000-0x0000000075273000-memory.dmp

    Filesize

    8KB

  • memory/940-56-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/940-74-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/940-58-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/940-64-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/940-62-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/940-60-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1732-54-0x00000000003A0000-0x00000000003A3000-memory.dmp

    Filesize

    12KB

  • memory/1732-66-0x00000000003A0000-0x00000000003A3000-memory.dmp

    Filesize

    12KB