Analysis

  • max time kernel
    189s
  • max time network
    191s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    07-07-2022 09:08

General

  • Target

    46524bcdf035245970c0c89390aeaa51393535064a577e1ff8799915712dc104.exe

  • Size

    332KB

  • MD5

    5cba922e9b586ee49fe760c0b77a85d1

  • SHA1

    ee00dcce8f00c6e531d129b5658d5563aadafe70

  • SHA256

    46524bcdf035245970c0c89390aeaa51393535064a577e1ff8799915712dc104

  • SHA512

    f1e62a27af6fcc3f516cf001aa3559b5273d76eb03f12ac618677d62e953639d31f6fb2cd4dd00726c32516cc56c17ad26fa8f8a1a72c71f1369a751c946a502

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-2277218442-1199762539-2004043321-1000\_RECOVERY_+bdsqg.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/F7E3AE2351BC6BA6 2. http://tes543berda73i48fsdfsd.keratadze.at/F7E3AE2351BC6BA6 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/F7E3AE2351BC6BA6 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/F7E3AE2351BC6BA6 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/F7E3AE2351BC6BA6 http://tes543berda73i48fsdfsd.keratadze.at/F7E3AE2351BC6BA6 http://tt54rfdjhb34rfbnknaerg.milerteddy.com/F7E3AE2351BC6BA6 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/F7E3AE2351BC6BA6
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/F7E3AE2351BC6BA6

http://tes543berda73i48fsdfsd.keratadze.at/F7E3AE2351BC6BA6

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/F7E3AE2351BC6BA6

http://xlowfznrg4wf7dli.ONION/F7E3AE2351BC6BA6

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 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 12 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\46524bcdf035245970c0c89390aeaa51393535064a577e1ff8799915712dc104.exe
    "C:\Users\Admin\AppData\Local\Temp\46524bcdf035245970c0c89390aeaa51393535064a577e1ff8799915712dc104.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2008
    • C:\Windows\pgrrgecwttxo.exe
      C:\Windows\pgrrgecwttxo.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:1220
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1480
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\46524B~1.EXE
      2⤵
      • Deletes itself
      PID:1744
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:576

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\pgrrgecwttxo.exe

    Filesize

    332KB

    MD5

    5cba922e9b586ee49fe760c0b77a85d1

    SHA1

    ee00dcce8f00c6e531d129b5658d5563aadafe70

    SHA256

    46524bcdf035245970c0c89390aeaa51393535064a577e1ff8799915712dc104

    SHA512

    f1e62a27af6fcc3f516cf001aa3559b5273d76eb03f12ac618677d62e953639d31f6fb2cd4dd00726c32516cc56c17ad26fa8f8a1a72c71f1369a751c946a502

  • C:\Windows\pgrrgecwttxo.exe

    Filesize

    332KB

    MD5

    5cba922e9b586ee49fe760c0b77a85d1

    SHA1

    ee00dcce8f00c6e531d129b5658d5563aadafe70

    SHA256

    46524bcdf035245970c0c89390aeaa51393535064a577e1ff8799915712dc104

    SHA512

    f1e62a27af6fcc3f516cf001aa3559b5273d76eb03f12ac618677d62e953639d31f6fb2cd4dd00726c32516cc56c17ad26fa8f8a1a72c71f1369a751c946a502

  • memory/1220-60-0x0000000000000000-mapping.dmp

  • memory/1220-67-0x0000000000280000-0x0000000000305000-memory.dmp

    Filesize

    532KB

  • memory/1480-70-0x0000000000000000-mapping.dmp

  • memory/1744-69-0x0000000000000000-mapping.dmp

  • memory/2008-54-0x00000000763E1000-0x00000000763E3000-memory.dmp

    Filesize

    8KB

  • memory/2008-55-0x0000000000400000-0x0000000000497000-memory.dmp

    Filesize

    604KB

  • memory/2008-59-0x00000000004A0000-0x0000000000525000-memory.dmp

    Filesize

    532KB