Overview

overview

10

Static

static

543d7f71cf...bf.exe

windows7-x64

10

543d7f71cf...bf.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    151s
  • max time network
    142s
  • 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 19:53

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    543d7f71cfdc3db35ab6060e5fde3719facf08f695a25c78a33af938fcea4ebf.exe

  • Size

    340KB

  • MD5

    5664c130fe14d5a3659a548257af1313

  • SHA1

    c953e413c76e3b74187dc95dc00f2bba9fba6e8a

  • SHA256

    543d7f71cfdc3db35ab6060e5fde3719facf08f695a25c78a33af938fcea4ebf

  • SHA512

    27b48d411b24eb763dca25bed9f5ab38c919c3657302d684923958860cd916100b8719669e574d1fa48fb6d4ae2ef290e963204c7d85b0def125ddcdf50f8a02

Score
10/10
teslacryptpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-2660308776-3705150086-26593515-1000\_RECOVERY_+bnals.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/1EBDC91CEA576E2B 2. http://tes543berda73i48fsdfsd.keratadze.at/1EBDC91CEA576E2B 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/1EBDC91CEA576E2B 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/1EBDC91CEA576E2B 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/1EBDC91CEA576E2B http://tes543berda73i48fsdfsd.keratadze.at/1EBDC91CEA576E2B http://tt54rfdjhb34rfbnknaerg.milerteddy.com/1EBDC91CEA576E2B *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/1EBDC91CEA576E2B
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/1EBDC91CEA576E2B

http://tes543berda73i48fsdfsd.keratadze.at/1EBDC91CEA576E2B

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/1EBDC91CEA576E2B

http://xlowfznrg4wf7dli.ONION/1EBDC91CEA576E2B

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 2 IoCs
  • 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 47 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs
  • System policy modification 1 TTPs 2 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\543d7f71cfdc3db35ab6060e5fde3719facf08f695a25c78a33af938fcea4ebf.exe
    "C:\Users\Admin\AppData\Local\Temp\543d7f71cfdc3db35ab6060e5fde3719facf08f695a25c78a33af938fcea4ebf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4400
    • C:\Users\Admin\AppData\Local\Temp\543d7f71cfdc3db35ab6060e5fde3719facf08f695a25c78a33af938fcea4ebf.exe
      "C:\Users\Admin\AppData\Local\Temp\543d7f71cfdc3db35ab6060e5fde3719facf08f695a25c78a33af938fcea4ebf.exe"
      2⤵
      • Checks computer location settings
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4312
      • C:\Windows\oqbsuusihjnk.exe
        C:\Windows\oqbsuusihjnk.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4212
        • C:\Windows\oqbsuusihjnk.exe
          C:\Windows\oqbsuusihjnk.exe
          4⤵
          • Executes dropped EXE
          • 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:1844
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3708
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\543D7F~1.EXE
        3⤵
          PID:4976
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:740

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\oqbsuusihjnk.exe
      Filesize

      340KB

      MD5

      5664c130fe14d5a3659a548257af1313

      SHA1

      c953e413c76e3b74187dc95dc00f2bba9fba6e8a

      SHA256

      543d7f71cfdc3db35ab6060e5fde3719facf08f695a25c78a33af938fcea4ebf

      SHA512

      27b48d411b24eb763dca25bed9f5ab38c919c3657302d684923958860cd916100b8719669e574d1fa48fb6d4ae2ef290e963204c7d85b0def125ddcdf50f8a02

      Download Submit

    • C:\Windows\oqbsuusihjnk.exe
      Filesize

      340KB

      MD5

      5664c130fe14d5a3659a548257af1313

      SHA1

      c953e413c76e3b74187dc95dc00f2bba9fba6e8a

      SHA256

      543d7f71cfdc3db35ab6060e5fde3719facf08f695a25c78a33af938fcea4ebf

      SHA512

      27b48d411b24eb763dca25bed9f5ab38c919c3657302d684923958860cd916100b8719669e574d1fa48fb6d4ae2ef290e963204c7d85b0def125ddcdf50f8a02

      Download Submit

    • C:\Windows\oqbsuusihjnk.exe
      Filesize

      340KB

      MD5

      5664c130fe14d5a3659a548257af1313

      SHA1

      c953e413c76e3b74187dc95dc00f2bba9fba6e8a

      SHA256

      543d7f71cfdc3db35ab6060e5fde3719facf08f695a25c78a33af938fcea4ebf

      SHA512

      27b48d411b24eb763dca25bed9f5ab38c919c3657302d684923958860cd916100b8719669e574d1fa48fb6d4ae2ef290e963204c7d85b0def125ddcdf50f8a02

      Download Submit

    • memory/1844-145-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/1844-149-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/1844-147-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/1844-146-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/4312-141-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/4312-139-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/4312-132-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/4312-133-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/4312-135-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/4400-130-0x0000000000890000-0x0000000000893000-memory.dmp

      Filesize

      12KB

      Download

    • memory/4400-134-0x0000000000890000-0x0000000000893000-memory.dmp

      Filesize

      12KB

      Download