Overview

overview

10

Static

static

43fc626908...e0.exe

windows7_x64

10

43fc626908...e0.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    153s
  • max time network
    158s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    07-07-2022 21:10

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    43fc62690894f36af348e9051901f8456c2e375e0ce973b1e4a6d24dfd927fe0.exe

  • Size

    364KB

  • MD5

    833c63e2520b66e2d6931dc117463ca5

  • SHA1

    e1cd37f586a25fe7681d8c5ec41500ddaa112fc3

  • SHA256

    43fc62690894f36af348e9051901f8456c2e375e0ce973b1e4a6d24dfd927fe0

  • SHA512

    9e374ad770a3983967fee753832ae16c86218122d18a5ed052983f64e468bc8fa2d5570396ce8948b411be429e4a932a7d1d47af42767bf1a0edba65edf9c9a6

Score
10/10
teslacryptpersistenceransomwarespywarestealersuricata

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-1819626980-2277161760-1023733287-1000\_RECoVERY_+sunpu.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://yyre45dbvn2nhbefbmh.begumvelic.at/82DC8A17F94E51C3 2. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/82DC8A17F94E51C3 3. http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/82DC8A17F94E51C3 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/82DC8A17F94E51C3 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://yyre45dbvn2nhbefbmh.begumvelic.at/82DC8A17F94E51C3 http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/82DC8A17F94E51C3 http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/82DC8A17F94E51C3 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/82DC8A17F94E51C3
URLs

http://yyre45dbvn2nhbefbmh.begumvelic.at/82DC8A17F94E51C3

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/82DC8A17F94E51C3

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/82DC8A17F94E51C3

http://xlowfznrg4wf7dli.ONION/82DC8A17F94E51C3

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
  • Modifies extensions of user files 4 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Deletes itself 1 IoCs
  • Drops startup file 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • 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.

  • Modifies system certificate store 2 TTPs 6 IoCs
    evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • System policy modification 1 TTPs 2 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\43fc62690894f36af348e9051901f8456c2e375e0ce973b1e4a6d24dfd927fe0.exe
    "C:\Users\Admin\AppData\Local\Temp\43fc62690894f36af348e9051901f8456c2e375e0ce973b1e4a6d24dfd927fe0.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1552
    • C:\Windows\buhalhqxwlhb.exe
      C:\Windows\buhalhqxwlhb.exe
      2⤵
      • Executes dropped EXE
      • Modifies extensions of user files
      • Drops startup file
      • 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:1284
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1392
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\43FC62~1.EXE
      2⤵
      • Deletes itself
      PID:1740
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:812

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Windows\buhalhqxwlhb.exe
    Filesize

    364KB

    MD5

    833c63e2520b66e2d6931dc117463ca5

    SHA1

    e1cd37f586a25fe7681d8c5ec41500ddaa112fc3

    SHA256

    43fc62690894f36af348e9051901f8456c2e375e0ce973b1e4a6d24dfd927fe0

    SHA512

    9e374ad770a3983967fee753832ae16c86218122d18a5ed052983f64e468bc8fa2d5570396ce8948b411be429e4a932a7d1d47af42767bf1a0edba65edf9c9a6

    Download Submit

  • C:\Windows\buhalhqxwlhb.exe
    Filesize

    364KB

    MD5

    833c63e2520b66e2d6931dc117463ca5

    SHA1

    e1cd37f586a25fe7681d8c5ec41500ddaa112fc3

    SHA256

    43fc62690894f36af348e9051901f8456c2e375e0ce973b1e4a6d24dfd927fe0

    SHA512

    9e374ad770a3983967fee753832ae16c86218122d18a5ed052983f64e468bc8fa2d5570396ce8948b411be429e4a932a7d1d47af42767bf1a0edba65edf9c9a6

    Download Submit

  • memory/1284-60-0x0000000000000000-mapping.dmp

    Download

  • memory/1284-64-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

    Download

  • memory/1284-68-0x00000000002D0000-0x0000000000356000-memory.dmp

    Filesize

    536KB

    Download

  • memory/1392-70-0x0000000000000000-mapping.dmp

    Download

  • memory/1552-54-0x0000000075B61000-0x0000000075B63000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1552-55-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

    Download

  • memory/1552-59-0x0000000001C80000-0x0000000001D06000-memory.dmp

    Filesize

    536KB

    Download

  • memory/1740-63-0x0000000000000000-mapping.dmp

    Download