Overview

overview

10

Static

static

4168dd01b2...1e.exe

windows7_x64

10

4168dd01b2...1e.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    08-07-2022 05:49

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General

  • Target

    4168dd01b2806c36a6895f1d41eb7bf2670304df3f69e16d080894781853041e.exe

  • Size

    384KB

  • MD5

    2a03d5b3379984537f432ba89f1a5677

  • SHA1

    0cc44ac0df32264814331934c92300836ecf9d08

  • SHA256

    4168dd01b2806c36a6895f1d41eb7bf2670304df3f69e16d080894781853041e

  • SHA512

    3ee71379dc94c5537d2fd6ddf3f18e416385bb169f8c38a65f1c4bcec180c8bba0ba2eb4237fdf4f05602947dc92d29542cf30f0c75caccf05645a071f22bd8d

Score
10/10
teslacryptpersistenceransomwarespywarestealersuricata

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-1809750270-3141839489-3074374771-1000\Recovery+folqy.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/372C16CD721B80F2 2. http://tes543berda73i48fsdfsd.keratadze.at/372C16CD721B80F2 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/372C16CD721B80F2 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/372C16CD721B80F2 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/372C16CD721B80F2 http://tes543berda73i48fsdfsd.keratadze.at/372C16CD721B80F2 http://tt54rfdjhb34rfbnknaerg.milerteddy.com/372C16CD721B80F2 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/372C16CD721B80F2
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/372C16CD721B80F2

http://tes543berda73i48fsdfsd.keratadze.at/372C16CD721B80F2

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/372C16CD721B80F2

http://xlowfznrg4wf7dli.ONION/372C16CD721B80F2

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
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • 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 47 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs
  • System policy modification 1 TTPs 2 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\4168dd01b2806c36a6895f1d41eb7bf2670304df3f69e16d080894781853041e.exe
    "C:\Users\Admin\AppData\Local\Temp\4168dd01b2806c36a6895f1d41eb7bf2670304df3f69e16d080894781853041e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2508
    • C:\Users\Admin\AppData\Local\Temp\4168dd01b2806c36a6895f1d41eb7bf2670304df3f69e16d080894781853041e.exe
      "C:\Users\Admin\AppData\Local\Temp\4168dd01b2806c36a6895f1d41eb7bf2670304df3f69e16d080894781853041e.exe"
      2⤵
      • Checks computer location settings
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4788
      • C:\Windows\cxaddiflwtav.exe
        C:\Windows\cxaddiflwtav.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:308
        • C:\Windows\cxaddiflwtav.exe
          C:\Windows\cxaddiflwtav.exe
          4⤵
          • 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:940
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3376
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\4168DD~1.EXE
        3⤵
          PID:4064
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2384

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\cxaddiflwtav.exe
      Filesize

      384KB

      MD5

      2a03d5b3379984537f432ba89f1a5677

      SHA1

      0cc44ac0df32264814331934c92300836ecf9d08

      SHA256

      4168dd01b2806c36a6895f1d41eb7bf2670304df3f69e16d080894781853041e

      SHA512

      3ee71379dc94c5537d2fd6ddf3f18e416385bb169f8c38a65f1c4bcec180c8bba0ba2eb4237fdf4f05602947dc92d29542cf30f0c75caccf05645a071f22bd8d

      Download Submit

    • C:\Windows\cxaddiflwtav.exe
      Filesize

      384KB

      MD5

      2a03d5b3379984537f432ba89f1a5677

      SHA1

      0cc44ac0df32264814331934c92300836ecf9d08

      SHA256

      4168dd01b2806c36a6895f1d41eb7bf2670304df3f69e16d080894781853041e

      SHA512

      3ee71379dc94c5537d2fd6ddf3f18e416385bb169f8c38a65f1c4bcec180c8bba0ba2eb4237fdf4f05602947dc92d29542cf30f0c75caccf05645a071f22bd8d

      Download Submit

    • C:\Windows\cxaddiflwtav.exe
      Filesize

      384KB

      MD5

      2a03d5b3379984537f432ba89f1a5677

      SHA1

      0cc44ac0df32264814331934c92300836ecf9d08

      SHA256

      4168dd01b2806c36a6895f1d41eb7bf2670304df3f69e16d080894781853041e

      SHA512

      3ee71379dc94c5537d2fd6ddf3f18e416385bb169f8c38a65f1c4bcec180c8bba0ba2eb4237fdf4f05602947dc92d29542cf30f0c75caccf05645a071f22bd8d

      Download Submit

    • memory/308-137-0x0000000000000000-mapping.dmp

      Download

    • memory/940-142-0x0000000000000000-mapping.dmp

      Download

    • memory/940-145-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

      Download

    • memory/940-149-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

      Download

    • memory/940-147-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

      Download

    • memory/940-146-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

      Download

    • memory/2508-134-0x0000000000830000-0x0000000000833000-memory.dmp

      Filesize

      12KB

      Download

    • memory/2508-130-0x0000000000830000-0x0000000000833000-memory.dmp

      Filesize

      12KB

      Download

    • memory/3376-148-0x0000000000000000-mapping.dmp

      Download

    • memory/4064-140-0x0000000000000000-mapping.dmp

      Download

    • memory/4788-133-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

      Download

    • memory/4788-131-0x0000000000000000-mapping.dmp

      Download

    • memory/4788-141-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

      Download

    • memory/4788-132-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

      Download

    • memory/4788-135-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

      Download

    • memory/4788-136-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

      Download