Analysis

  • max time kernel
    149s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    24-07-2022 16:42

General

  • Target

    58061c1909f91911679bd27a57c19110396ee63a83014bac98ad4bd493234a89.exe

  • Size

    340KB

  • MD5

    668c2c58a444c028fbd491bc9afded1d

  • SHA1

    c2cd569613182b71066af0b605f01dc6be8e8508

  • SHA256

    58061c1909f91911679bd27a57c19110396ee63a83014bac98ad4bd493234a89

  • SHA512

    14f39f3eb2511724d2ac2cc3f33c332920be5626c34de52894adf59a2c003db713cb882d34169f24bc4797d0db5ce77d80e569194b303cb21baeca5dacf63175

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-4084403625-2215941253-1760665084-1000\_RECOVERY_+mwvge.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/DED8BF88E6254092 2. http://tes543berda73i48fsdfsd.keratadze.at/DED8BF88E6254092 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/DED8BF88E6254092 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/DED8BF88E6254092 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/DED8BF88E6254092 http://tes543berda73i48fsdfsd.keratadze.at/DED8BF88E6254092 http://tt54rfdjhb34rfbnknaerg.milerteddy.com/DED8BF88E6254092 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/DED8BF88E6254092
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/DED8BF88E6254092

http://tes543berda73i48fsdfsd.keratadze.at/DED8BF88E6254092

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/DED8BF88E6254092

http://xlowfznrg4wf7dli.ONION/DED8BF88E6254092

Signatures

  • TeslaCrypt, AlphaCrypt

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

  • suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon

    suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • 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.

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\58061c1909f91911679bd27a57c19110396ee63a83014bac98ad4bd493234a89.exe
    "C:\Users\Admin\AppData\Local\Temp\58061c1909f91911679bd27a57c19110396ee63a83014bac98ad4bd493234a89.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1428
    • C:\Users\Admin\AppData\Local\Temp\58061c1909f91911679bd27a57c19110396ee63a83014bac98ad4bd493234a89.exe
      "C:\Users\Admin\AppData\Local\Temp\58061c1909f91911679bd27a57c19110396ee63a83014bac98ad4bd493234a89.exe"
      2⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1324
      • C:\Windows\eljuqfjaxkdj.exe
        C:\Windows\eljuqfjaxkdj.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1304
        • C:\Windows\eljuqfjaxkdj.exe
          C:\Windows\eljuqfjaxkdj.exe
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in Program Files directory
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          • System policy modification
          PID:1884
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1708
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\58061C~1.EXE
        3⤵
        • Deletes itself
        PID:900
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1288

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\eljuqfjaxkdj.exe

    Filesize

    340KB

    MD5

    668c2c58a444c028fbd491bc9afded1d

    SHA1

    c2cd569613182b71066af0b605f01dc6be8e8508

    SHA256

    58061c1909f91911679bd27a57c19110396ee63a83014bac98ad4bd493234a89

    SHA512

    14f39f3eb2511724d2ac2cc3f33c332920be5626c34de52894adf59a2c003db713cb882d34169f24bc4797d0db5ce77d80e569194b303cb21baeca5dacf63175

  • C:\Windows\eljuqfjaxkdj.exe

    Filesize

    340KB

    MD5

    668c2c58a444c028fbd491bc9afded1d

    SHA1

    c2cd569613182b71066af0b605f01dc6be8e8508

    SHA256

    58061c1909f91911679bd27a57c19110396ee63a83014bac98ad4bd493234a89

    SHA512

    14f39f3eb2511724d2ac2cc3f33c332920be5626c34de52894adf59a2c003db713cb882d34169f24bc4797d0db5ce77d80e569194b303cb21baeca5dacf63175

  • C:\Windows\eljuqfjaxkdj.exe

    Filesize

    340KB

    MD5

    668c2c58a444c028fbd491bc9afded1d

    SHA1

    c2cd569613182b71066af0b605f01dc6be8e8508

    SHA256

    58061c1909f91911679bd27a57c19110396ee63a83014bac98ad4bd493234a89

    SHA512

    14f39f3eb2511724d2ac2cc3f33c332920be5626c34de52894adf59a2c003db713cb882d34169f24bc4797d0db5ce77d80e569194b303cb21baeca5dacf63175

  • memory/1324-69-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1324-55-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1324-64-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1324-68-0x00000000754B1000-0x00000000754B3000-memory.dmp

    Filesize

    8KB

  • memory/1324-56-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1324-70-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1324-62-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1324-60-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1324-58-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1324-74-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1428-54-0x0000000000310000-0x0000000000313000-memory.dmp

    Filesize

    12KB

  • memory/1428-66-0x0000000000310000-0x0000000000313000-memory.dmp

    Filesize

    12KB

  • memory/1884-90-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1884-91-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1884-92-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB