Analysis

  • max time kernel
    176s
  • max time network
    182s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    01-08-2022 23:55

General

  • Target

    5b689d04c37b221fb03e4957edc64bf3a8fa7762a42b5257a64ed86f9e182c4b.exe

  • Size

    383KB

  • MD5

    02a65851ad053ac7dcd6d5356b3f98a2

  • SHA1

    86cbe36bb6c5e457af6f4e8612debed8fe705a6c

  • SHA256

    5b689d04c37b221fb03e4957edc64bf3a8fa7762a42b5257a64ed86f9e182c4b

  • SHA512

    5f7993a27a512cf469db62f45ffab7c30aaf9103549ddc2402e33ae5ea7cb144f1e8aa6515b85ca8ebc77d0825ed551a175cb0077f7bf4dad0ccf06cf93828bf

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-3762437355-3468409815-1164039494-1000\_RECOVERY_+ujbxo.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/7D509FAA17B6159 2. http://tes543berda73i48fsdfsd.keratadze.at/7D509FAA17B6159 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/7D509FAA17B6159 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/7D509FAA17B6159 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/7D509FAA17B6159 http://tes543berda73i48fsdfsd.keratadze.at/7D509FAA17B6159 http://tt54rfdjhb34rfbnknaerg.milerteddy.com/7D509FAA17B6159 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/7D509FAA17B6159
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/7D509FAA17B6159

http://tes543berda73i48fsdfsd.keratadze.at/7D509FAA17B6159

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/7D509FAA17B6159

http://xlowfznrg4wf7dli.ONION/7D509FAA17B6159

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 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\5b689d04c37b221fb03e4957edc64bf3a8fa7762a42b5257a64ed86f9e182c4b.exe
    "C:\Users\Admin\AppData\Local\Temp\5b689d04c37b221fb03e4957edc64bf3a8fa7762a42b5257a64ed86f9e182c4b.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1824
    • C:\Windows\cwttxopuoxmc.exe
      C:\Windows\cwttxopuoxmc.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:756
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:832
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\5B689D~1.EXE
      2⤵
      • Deletes itself
      PID:1784
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2024

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\cwttxopuoxmc.exe

    Filesize

    383KB

    MD5

    02a65851ad053ac7dcd6d5356b3f98a2

    SHA1

    86cbe36bb6c5e457af6f4e8612debed8fe705a6c

    SHA256

    5b689d04c37b221fb03e4957edc64bf3a8fa7762a42b5257a64ed86f9e182c4b

    SHA512

    5f7993a27a512cf469db62f45ffab7c30aaf9103549ddc2402e33ae5ea7cb144f1e8aa6515b85ca8ebc77d0825ed551a175cb0077f7bf4dad0ccf06cf93828bf

  • C:\Windows\cwttxopuoxmc.exe

    Filesize

    383KB

    MD5

    02a65851ad053ac7dcd6d5356b3f98a2

    SHA1

    86cbe36bb6c5e457af6f4e8612debed8fe705a6c

    SHA256

    5b689d04c37b221fb03e4957edc64bf3a8fa7762a42b5257a64ed86f9e182c4b

    SHA512

    5f7993a27a512cf469db62f45ffab7c30aaf9103549ddc2402e33ae5ea7cb144f1e8aa6515b85ca8ebc77d0825ed551a175cb0077f7bf4dad0ccf06cf93828bf

  • memory/756-58-0x0000000000000000-mapping.dmp

  • memory/756-63-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/756-65-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/832-66-0x0000000000000000-mapping.dmp

  • memory/1784-61-0x0000000000000000-mapping.dmp

  • memory/1824-54-0x00000000749D1000-0x00000000749D3000-memory.dmp

    Filesize

    8KB

  • memory/1824-56-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/1824-55-0x00000000004C0000-0x00000000004EE000-memory.dmp

    Filesize

    184KB

  • memory/1824-57-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/1824-62-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB