Overview

overview

10

Static

static

5c66409676...8a.exe

windows7-x64

10

5c66409676...8a.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    151s
  • 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
    01-08-2022 14:43

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General

  • Target

    5c66409676c106af99f24e3d199148c759c66b16f53511741c509bed0414ac8a.exe

  • Size

    332KB

  • MD5

    6474dc000199add9c42df4733aeec2f3

  • SHA1

    9dc04f8b70f028b20ccc5cd540c68834d0dae790

  • SHA256

    5c66409676c106af99f24e3d199148c759c66b16f53511741c509bed0414ac8a

  • SHA512

    4e983ac9d6bb40aa99bdb506c9013e791c9fa11f584521c88e07fc35b7033e9010727e231de6121e1335ff327d7337d6582898b81a6ef125fbf006b60a425b40

Score
10/10
teslacryptpersistenceransomware

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-1101907861-274115917-2188613224-1000\_RECOVERY_+omoqr.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/1FAA17B8F307AB5 2. http://tes543berda73i48fsdfsd.keratadze.at/1FAA17B8F307AB5 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/1FAA17B8F307AB5 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/1FAA17B8F307AB5 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/1FAA17B8F307AB5 http://tes543berda73i48fsdfsd.keratadze.at/1FAA17B8F307AB5 http://tt54rfdjhb34rfbnknaerg.milerteddy.com/1FAA17B8F307AB5 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/1FAA17B8F307AB5
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/1FAA17B8F307AB5

http://tes543berda73i48fsdfsd.keratadze.at/1FAA17B8F307AB5

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/1FAA17B8F307AB5

http://xlowfznrg4wf7dli.ONION/1FAA17B8F307AB5

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\5c66409676c106af99f24e3d199148c759c66b16f53511741c509bed0414ac8a.exe
    "C:\Users\Admin\AppData\Local\Temp\5c66409676c106af99f24e3d199148c759c66b16f53511741c509bed0414ac8a.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4192
    • C:\Windows\mfnncjatyxyc.exe
      C:\Windows\mfnncjatyxyc.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:4912
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:884
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\5C6640~1.EXE
      2⤵
        PID:2940
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2908

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\mfnncjatyxyc.exe
      Filesize

      332KB

      MD5

      6474dc000199add9c42df4733aeec2f3

      SHA1

      9dc04f8b70f028b20ccc5cd540c68834d0dae790

      SHA256

      5c66409676c106af99f24e3d199148c759c66b16f53511741c509bed0414ac8a

      SHA512

      4e983ac9d6bb40aa99bdb506c9013e791c9fa11f584521c88e07fc35b7033e9010727e231de6121e1335ff327d7337d6582898b81a6ef125fbf006b60a425b40

      Download Submit

    • C:\Windows\mfnncjatyxyc.exe
      Filesize

      332KB

      MD5

      6474dc000199add9c42df4733aeec2f3

      SHA1

      9dc04f8b70f028b20ccc5cd540c68834d0dae790

      SHA256

      5c66409676c106af99f24e3d199148c759c66b16f53511741c509bed0414ac8a

      SHA512

      4e983ac9d6bb40aa99bdb506c9013e791c9fa11f584521c88e07fc35b7033e9010727e231de6121e1335ff327d7337d6582898b81a6ef125fbf006b60a425b40

      Download Submit

    • memory/884-144-0x0000000000000000-mapping.dmp

      Download

    • memory/2940-142-0x0000000000000000-mapping.dmp

      Download

    • memory/4192-130-0x0000000000400000-0x0000000000497000-memory.dmp

      Filesize

      604KB

      Download

    • memory/4192-134-0x0000000002270000-0x00000000022F5000-memory.dmp

      Filesize

      532KB

      Download

    • memory/4912-135-0x0000000000000000-mapping.dmp

      Download

    • memory/4912-143-0x00000000020F0000-0x0000000002175000-memory.dmp

      Filesize

      532KB

      Download