Overview

overview

10

Static

static

558ba87d09...25.exe

windows7-x64

10

558ba87d09...25.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    153s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-07-2022 15:43

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General

  • Target

    558ba87d092b229387b364e03e054a8849d6b0939e60650e7f708b989194ef25.exe

  • Size

    340KB

  • MD5

    25c064f5adc5d3d48b173d45fdbcb5eb

  • SHA1

    49479988acd79dff1fb8f7df46e40971d8491d57

  • SHA256

    558ba87d092b229387b364e03e054a8849d6b0939e60650e7f708b989194ef25

  • SHA512

    3475341de78c3862c98183eec0fb9501be07d326b1def1a6113dbba0143986de24676530fa7a374b547775cff8d91a3bb1cf5a9b870c12dbc49d3c47d03f4665

Score
10/10
teslacryptpersistenceransomware

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-1101907861-274115917-2188613224-1000\Recovery+ukmij.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://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/E8455FD5307614A8 2. http://tes543berda73i48fsdfsd.keratadze.at/E8455FD5307614A8 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/E8455FD5307614A8 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/E8455FD5307614A8 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/E8455FD5307614A8 http://tes543berda73i48fsdfsd.keratadze.at/E8455FD5307614A8 http://tt54rfdjhb34rfbnknaerg.milerteddy.com/E8455FD5307614A8 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/E8455FD5307614A8
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/E8455FD5307614A8

http://tes543berda73i48fsdfsd.keratadze.at/E8455FD5307614A8

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/E8455FD5307614A8

http://xlowfznrg4wf7dli.ONION/E8455FD5307614A8

Signatures

  • TeslaCrypt, AlphaCrypt

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

    ransomwareteslacrypt
  • 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\558ba87d092b229387b364e03e054a8849d6b0939e60650e7f708b989194ef25.exe
    "C:\Users\Admin\AppData\Local\Temp\558ba87d092b229387b364e03e054a8849d6b0939e60650e7f708b989194ef25.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1600
    • C:\Windows\nwpbbxkccdmb.exe
      C:\Windows\nwpbbxkccdmb.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:4444
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4316
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\558BA8~1.EXE
      2⤵
        PID:3060
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4592

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\nwpbbxkccdmb.exe
      Filesize

      340KB

      MD5

      25c064f5adc5d3d48b173d45fdbcb5eb

      SHA1

      49479988acd79dff1fb8f7df46e40971d8491d57

      SHA256

      558ba87d092b229387b364e03e054a8849d6b0939e60650e7f708b989194ef25

      SHA512

      3475341de78c3862c98183eec0fb9501be07d326b1def1a6113dbba0143986de24676530fa7a374b547775cff8d91a3bb1cf5a9b870c12dbc49d3c47d03f4665

      Download Submit

    • C:\Windows\nwpbbxkccdmb.exe
      Filesize

      340KB

      MD5

      25c064f5adc5d3d48b173d45fdbcb5eb

      SHA1

      49479988acd79dff1fb8f7df46e40971d8491d57

      SHA256

      558ba87d092b229387b364e03e054a8849d6b0939e60650e7f708b989194ef25

      SHA512

      3475341de78c3862c98183eec0fb9501be07d326b1def1a6113dbba0143986de24676530fa7a374b547775cff8d91a3bb1cf5a9b870c12dbc49d3c47d03f4665

      Download Submit

    • memory/1600-130-0x0000000000400000-0x0000000000497000-memory.dmp

      Filesize

      604KB

      Download

    • memory/1600-134-0x0000000002280000-0x0000000002306000-memory.dmp

      Filesize

      536KB

      Download

    • memory/3060-142-0x0000000000000000-mapping.dmp

      Download

    • memory/4316-144-0x0000000000000000-mapping.dmp

      Download

    • memory/4444-135-0x0000000000000000-mapping.dmp

      Download

    • memory/4444-143-0x0000000002140000-0x00000000021C6000-memory.dmp

      Filesize

      536KB

      Download