Overview

overview

10

Static

static

592ec29fbf...64.exe

windows7-x64

10

592ec29fbf...64.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-07-2022 05:05

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General

  • Target

    592ec29fbf68307cc62a234c11a414576801914ea7eaca2cc7a718178a11a964.exe

  • Size

    384KB

  • MD5

    1b3d2d2e5f98531456a561f0556b9e06

  • SHA1

    34b9baffc913ac2c23df1982b8a09e9dad707b7f

  • SHA256

    592ec29fbf68307cc62a234c11a414576801914ea7eaca2cc7a718178a11a964

  • SHA512

    dc972d6741d1ceb475007c782f351bd6895c2669c1c2fb7793085fe54315388c47157bde82caf3273ad56ce7774d931f2c540e7d59593212425a9aaa87b3954b

Score
10/10
teslacryptpersistenceransomwarespywarestealersuricata

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-2660308776-3705150086-26593515-1000\Recovery+yhyiu.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 RSA-4096. More information about the encryption keys using RSA-4096 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) How did this happen ? !!! Specially for your PC was generated personal RSA-4096 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://tt54rfdjhb34rfbnknaerg.milerteddy.com/43378E7D702CF97E 2. http://kkd47eh4hdjshb5t.angortra.at/43378E7D702CF97E 3. http://ytrest84y5i456hghadefdsd.pontogrot.com/43378E7D702CF97E 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/43378E7D702CF97E 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://tt54rfdjhb34rfbnknaerg.milerteddy.com/43378E7D702CF97E http://kkd47eh4hdjshb5t.angortra.at/43378E7D702CF97E http://ytrest84y5i456hghadefdsd.pontogrot.com/43378E7D702CF97E *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/43378E7D702CF97E
URLs

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/43378E7D702CF97E

http://kkd47eh4hdjshb5t.angortra.at/43378E7D702CF97E

http://ytrest84y5i456hghadefdsd.pontogrot.com/43378E7D702CF97E

http://xlowfznrg4wf7dli.ONION/43378E7D702CF97E

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 2 IoCs
  • Modifies extensions of user files 2 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 6 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
  • 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.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 23 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs
  • System policy modification 1 TTPs 2 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\592ec29fbf68307cc62a234c11a414576801914ea7eaca2cc7a718178a11a964.exe
    "C:\Users\Admin\AppData\Local\Temp\592ec29fbf68307cc62a234c11a414576801914ea7eaca2cc7a718178a11a964.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2632
    • C:\Users\Admin\AppData\Local\Temp\592ec29fbf68307cc62a234c11a414576801914ea7eaca2cc7a718178a11a964.exe
      "C:\Users\Admin\AppData\Local\Temp\592ec29fbf68307cc62a234c11a414576801914ea7eaca2cc7a718178a11a964.exe"
      2⤵
      • Checks computer location settings
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5084
      • C:\Windows\ukfwgwvnaypl.exe
        C:\Windows\ukfwgwvnaypl.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1212
        • C:\Windows\ukfwgwvnaypl.exe
          C:\Windows\ukfwgwvnaypl.exe
          4⤵
          • Executes dropped EXE
          • Modifies extensions of user files
          • Checks computer location settings
          • Drops startup file
          • 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:4468
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /noin teractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3012
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\592EC2~1.EXE
        3⤵
          PID:4444

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\ukfwgwvnaypl.exe
      Filesize

      384KB

      MD5

      1b3d2d2e5f98531456a561f0556b9e06

      SHA1

      34b9baffc913ac2c23df1982b8a09e9dad707b7f

      SHA256

      592ec29fbf68307cc62a234c11a414576801914ea7eaca2cc7a718178a11a964

      SHA512

      dc972d6741d1ceb475007c782f351bd6895c2669c1c2fb7793085fe54315388c47157bde82caf3273ad56ce7774d931f2c540e7d59593212425a9aaa87b3954b

      Download Submit

    • C:\Windows\ukfwgwvnaypl.exe
      Filesize

      384KB

      MD5

      1b3d2d2e5f98531456a561f0556b9e06

      SHA1

      34b9baffc913ac2c23df1982b8a09e9dad707b7f

      SHA256

      592ec29fbf68307cc62a234c11a414576801914ea7eaca2cc7a718178a11a964

      SHA512

      dc972d6741d1ceb475007c782f351bd6895c2669c1c2fb7793085fe54315388c47157bde82caf3273ad56ce7774d931f2c540e7d59593212425a9aaa87b3954b

      Download Submit

    • C:\Windows\ukfwgwvnaypl.exe
      Filesize

      384KB

      MD5

      1b3d2d2e5f98531456a561f0556b9e06

      SHA1

      34b9baffc913ac2c23df1982b8a09e9dad707b7f

      SHA256

      592ec29fbf68307cc62a234c11a414576801914ea7eaca2cc7a718178a11a964

      SHA512

      dc972d6741d1ceb475007c782f351bd6895c2669c1c2fb7793085fe54315388c47157bde82caf3273ad56ce7774d931f2c540e7d59593212425a9aaa87b3954b

      Download Submit

    • memory/1212-137-0x0000000000000000-mapping.dmp

      Download

    • memory/2632-134-0x0000000000A40000-0x0000000000A43000-memory.dmp

      Filesize

      12KB

      Download

    • memory/2632-130-0x0000000000A40000-0x0000000000A43000-memory.dmp

      Filesize

      12KB

      Download

    • memory/3012-147-0x0000000000000000-mapping.dmp

      Download

    • memory/4444-140-0x0000000000000000-mapping.dmp

      Download

    • memory/4468-145-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/4468-149-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/4468-148-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/4468-146-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/4468-142-0x0000000000000000-mapping.dmp

      Download

    • memory/5084-133-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/5084-131-0x0000000000000000-mapping.dmp

      Download

    • memory/5084-141-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/5084-132-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/5084-135-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/5084-136-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download