Overview

overview

10

Static

static

43f7c5f99b...15.exe

windows7_x64

10

43f7c5f99b...15.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    07-07-2022 21:13

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General

  • Target

    43f7c5f99bc4f8e92f8e9fe6ad6bbcb13aa996cb3057fa2e509ec564d1b5b515.exe

  • Size

    336KB

  • MD5

    2c213eac311b385bba88f42c04a5ba73

  • SHA1

    eb1ef4ab7662e500b0641fd9a1850b30da181908

  • SHA256

    43f7c5f99bc4f8e92f8e9fe6ad6bbcb13aa996cb3057fa2e509ec564d1b5b515

  • SHA512

    f03e8a10e1054312a2ef18e374b97f2d28fa28ba470bfafa1c6a5026c87e08c3e6eab7914fec0da8255c5246614068c61450e921760a48c7c5c6b378ebe13c74

Score
10/10
teslacryptpersistenceransomwarespywarestealersuricata

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-1809750270-3141839489-3074374771-1000\Recovery+wxcqu.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://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/658C1DEAC379D11 2. http://tes543berda73i48fsdfsd.keratadze.at/658C1DEAC379D11 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/658C1DEAC379D11 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/658C1DEAC379D11 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/658C1DEAC379D11 http://tes543berda73i48fsdfsd.keratadze.at/658C1DEAC379D11 http://tt54rfdjhb34rfbnknaerg.milerteddy.com/658C1DEAC379D11 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/658C1DEAC379D11
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/658C1DEAC379D11

http://tes543berda73i48fsdfsd.keratadze.at/658C1DEAC379D11

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/658C1DEAC379D11

http://xlowfznrg4wf7dli.ONION/658C1DEAC379D11

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 26 IoCs
  • System policy modification 1 TTPs 2 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\43f7c5f99bc4f8e92f8e9fe6ad6bbcb13aa996cb3057fa2e509ec564d1b5b515.exe
    "C:\Users\Admin\AppData\Local\Temp\43f7c5f99bc4f8e92f8e9fe6ad6bbcb13aa996cb3057fa2e509ec564d1b5b515.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3656
    • C:\Users\Admin\AppData\Local\Temp\43f7c5f99bc4f8e92f8e9fe6ad6bbcb13aa996cb3057fa2e509ec564d1b5b515.exe
      "C:\Users\Admin\AppData\Local\Temp\43f7c5f99bc4f8e92f8e9fe6ad6bbcb13aa996cb3057fa2e509ec564d1b5b515.exe"
      2⤵
      • Checks computer location settings
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2892
      • C:\Windows\suqdkhbyolpx.exe
        C:\Windows\suqdkhbyolpx.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:668
        • C:\Windows\suqdkhbyolpx.exe
          C:\Windows\suqdkhbyolpx.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:3836
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:2072
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\43F7C5~1.EXE
        3⤵
          PID:3604
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3560

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\suqdkhbyolpx.exe
      Filesize

      336KB

      MD5

      2c213eac311b385bba88f42c04a5ba73

      SHA1

      eb1ef4ab7662e500b0641fd9a1850b30da181908

      SHA256

      43f7c5f99bc4f8e92f8e9fe6ad6bbcb13aa996cb3057fa2e509ec564d1b5b515

      SHA512

      f03e8a10e1054312a2ef18e374b97f2d28fa28ba470bfafa1c6a5026c87e08c3e6eab7914fec0da8255c5246614068c61450e921760a48c7c5c6b378ebe13c74

      Download Submit

    • C:\Windows\suqdkhbyolpx.exe
      Filesize

      336KB

      MD5

      2c213eac311b385bba88f42c04a5ba73

      SHA1

      eb1ef4ab7662e500b0641fd9a1850b30da181908

      SHA256

      43f7c5f99bc4f8e92f8e9fe6ad6bbcb13aa996cb3057fa2e509ec564d1b5b515

      SHA512

      f03e8a10e1054312a2ef18e374b97f2d28fa28ba470bfafa1c6a5026c87e08c3e6eab7914fec0da8255c5246614068c61450e921760a48c7c5c6b378ebe13c74

      Download Submit

    • C:\Windows\suqdkhbyolpx.exe
      Filesize

      336KB

      MD5

      2c213eac311b385bba88f42c04a5ba73

      SHA1

      eb1ef4ab7662e500b0641fd9a1850b30da181908

      SHA256

      43f7c5f99bc4f8e92f8e9fe6ad6bbcb13aa996cb3057fa2e509ec564d1b5b515

      SHA512

      f03e8a10e1054312a2ef18e374b97f2d28fa28ba470bfafa1c6a5026c87e08c3e6eab7914fec0da8255c5246614068c61450e921760a48c7c5c6b378ebe13c74

      Download Submit

    • memory/668-136-0x0000000000000000-mapping.dmp

      Download

    • memory/2072-148-0x0000000000000000-mapping.dmp

      Download

    • memory/2892-134-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/2892-131-0x0000000000000000-mapping.dmp

      Download

    • memory/2892-139-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/2892-141-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/2892-135-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/2892-132-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/3604-140-0x0000000000000000-mapping.dmp

      Download

    • memory/3656-130-0x0000000000E90000-0x0000000000E93000-memory.dmp

      Filesize

      12KB

      Download

    • memory/3656-133-0x0000000000E90000-0x0000000000E93000-memory.dmp

      Filesize

      12KB

      Download

    • memory/3836-142-0x0000000000000000-mapping.dmp

      Download

    • memory/3836-146-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/3836-147-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/3836-145-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/3836-149-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download