Overview

overview

10

Static

static

4caa7a9e89...4a.exe

windows7_x64

10

4caa7a9e89...4a.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    12-07-2022 05:30

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General

  • Target

    4caa7a9e899522e38c33118ef2330da52a4d3d6bab1a576542c05deb1231654a.exe

  • Size

    428KB

  • MD5

    173634aad22b23dc3717ea91bb49127d

  • SHA1

    6f368671b55931634f8920c1dddb7b3791fcac89

  • SHA256

    4caa7a9e899522e38c33118ef2330da52a4d3d6bab1a576542c05deb1231654a

  • SHA512

    bdeffbbe4ef788c99cab417fa6e073315ffad47403a1e32c95b451dde38e56791ebc502287bf44e50ebc5603648109534e60d397dc2484ef1f1eca937a94069e

Score
10/10
teslacryptpersistenceransomwaresuricata

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-3751123196-3323558407-1869646069-1000\_RECoVERY_+doyes.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/94F71ED6861E8E8D 2. http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/94F71ED6861E8E8D 3. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/94F71ED6861E8E8D 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/94F71ED6861E8E8D 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/94F71ED6861E8E8D http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/94F71ED6861E8E8D http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/94F71ED6861E8E8D *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/94F71ED6861E8E8D
URLs

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/94F71ED6861E8E8D

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/94F71ED6861E8E8D

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/94F71ED6861E8E8D

http://xlowfznrg4wf7dli.ONION/94F71ED6861E8E8D

Signatures

  • TeslaCrypt, AlphaCrypt

    Ransomware based on CryptoLocker. Shut down by the developers in 2016.

    ransomwareteslacrypt
  • suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon

    suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon

    suricata
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • 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.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 47 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • System policy modification 1 TTPs 2 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\4caa7a9e899522e38c33118ef2330da52a4d3d6bab1a576542c05deb1231654a.exe
    "C:\Users\Admin\AppData\Local\Temp\4caa7a9e899522e38c33118ef2330da52a4d3d6bab1a576542c05deb1231654a.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5096
    • C:\Windows\vcmtyvogowje.exe
      C:\Windows\vcmtyvogowje.exe
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:4380
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4364
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\4CAA7A~1.EXE
      2⤵
        PID:516
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4924

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\vcmtyvogowje.exe
      Filesize

      428KB

      MD5

      173634aad22b23dc3717ea91bb49127d

      SHA1

      6f368671b55931634f8920c1dddb7b3791fcac89

      SHA256

      4caa7a9e899522e38c33118ef2330da52a4d3d6bab1a576542c05deb1231654a

      SHA512

      bdeffbbe4ef788c99cab417fa6e073315ffad47403a1e32c95b451dde38e56791ebc502287bf44e50ebc5603648109534e60d397dc2484ef1f1eca937a94069e

      Download Submit

    • C:\Windows\vcmtyvogowje.exe
      Filesize

      428KB

      MD5

      173634aad22b23dc3717ea91bb49127d

      SHA1

      6f368671b55931634f8920c1dddb7b3791fcac89

      SHA256

      4caa7a9e899522e38c33118ef2330da52a4d3d6bab1a576542c05deb1231654a

      SHA512

      bdeffbbe4ef788c99cab417fa6e073315ffad47403a1e32c95b451dde38e56791ebc502287bf44e50ebc5603648109534e60d397dc2484ef1f1eca937a94069e

      Download Submit

    • memory/516-138-0x0000000000000000-mapping.dmp

      Download

    • memory/4364-145-0x0000000000000000-mapping.dmp

      Download

    • memory/4380-135-0x0000000000000000-mapping.dmp

      Download

    • memory/4380-144-0x0000000002190000-0x0000000002215000-memory.dmp

      Filesize

      532KB

      Download

    • memory/5096-130-0x0000000000AA0000-0x0000000000B25000-memory.dmp

      Filesize

      532KB

      Download

    • memory/5096-131-0x0000000000400000-0x00000000004AE000-memory.dmp

      Filesize

      696KB

      Download

    • memory/5096-139-0x0000000000AA0000-0x0000000000B25000-memory.dmp

      Filesize

      532KB

      Download