Analysis

  • max time kernel
    153s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    30-07-2022 20:03

General

  • Target

    61cc8c36085bc4a140f74d11b99ef047877d8f9d4107418627a3f978c495095f.exe

  • Size

    344KB

  • MD5

    2bba3e4d34098cc1ffbb8ddd8cd64086

  • SHA1

    e353968444ce29d8a23a24506ed9f68604c6ad15

  • SHA256

    61cc8c36085bc4a140f74d11b99ef047877d8f9d4107418627a3f978c495095f

  • SHA512

    35a9a77d93070a60ee8dfb4150754da61b59641df4b619f44ce94933ddb43d6d88ab1ad612a50541d15e7dc5711922d42b31a5accaf33ab8b9f8dad2eee4cc0e

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-3762437355-3468409815-1164039494-1000\Recovery+fhanx.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/4D553F50B1428D 2. http://tes543berda73i48fsdfsd.keratadze.at/4D553F50B1428D 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/4D553F50B1428D 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/4D553F50B1428D 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/4D553F50B1428D http://tes543berda73i48fsdfsd.keratadze.at/4D553F50B1428D http://tt54rfdjhb34rfbnknaerg.milerteddy.com/4D553F50B1428D *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/4D553F50B1428D
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/4D553F50B1428D

http://tes543berda73i48fsdfsd.keratadze.at/4D553F50B1428D

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/4D553F50B1428D

http://xlowfznrg4wf7dli.ONION/4D553F50B1428D

Signatures

  • TeslaCrypt, AlphaCrypt

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

  • 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 18 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 52 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\61cc8c36085bc4a140f74d11b99ef047877d8f9d4107418627a3f978c495095f.exe
    "C:\Users\Admin\AppData\Local\Temp\61cc8c36085bc4a140f74d11b99ef047877d8f9d4107418627a3f978c495095f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1212
    • C:\Users\Admin\AppData\Local\Temp\61cc8c36085bc4a140f74d11b99ef047877d8f9d4107418627a3f978c495095f.exe
      "C:\Users\Admin\AppData\Local\Temp\61cc8c36085bc4a140f74d11b99ef047877d8f9d4107418627a3f978c495095f.exe"
      2⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1612
      • C:\Windows\ydximfumafhs.exe
        C:\Windows\ydximfumafhs.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1516
        • C:\Windows\ydximfumafhs.exe
          C:\Windows\ydximfumafhs.exe
          4⤵
          • Executes dropped EXE
          • 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:1420
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1128
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\61CC8C~1.EXE
        3⤵
        • Deletes itself
        PID:272
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1800

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\ydximfumafhs.exe

    Filesize

    344KB

    MD5

    2bba3e4d34098cc1ffbb8ddd8cd64086

    SHA1

    e353968444ce29d8a23a24506ed9f68604c6ad15

    SHA256

    61cc8c36085bc4a140f74d11b99ef047877d8f9d4107418627a3f978c495095f

    SHA512

    35a9a77d93070a60ee8dfb4150754da61b59641df4b619f44ce94933ddb43d6d88ab1ad612a50541d15e7dc5711922d42b31a5accaf33ab8b9f8dad2eee4cc0e

  • C:\Windows\ydximfumafhs.exe

    Filesize

    344KB

    MD5

    2bba3e4d34098cc1ffbb8ddd8cd64086

    SHA1

    e353968444ce29d8a23a24506ed9f68604c6ad15

    SHA256

    61cc8c36085bc4a140f74d11b99ef047877d8f9d4107418627a3f978c495095f

    SHA512

    35a9a77d93070a60ee8dfb4150754da61b59641df4b619f44ce94933ddb43d6d88ab1ad612a50541d15e7dc5711922d42b31a5accaf33ab8b9f8dad2eee4cc0e

  • C:\Windows\ydximfumafhs.exe

    Filesize

    344KB

    MD5

    2bba3e4d34098cc1ffbb8ddd8cd64086

    SHA1

    e353968444ce29d8a23a24506ed9f68604c6ad15

    SHA256

    61cc8c36085bc4a140f74d11b99ef047877d8f9d4107418627a3f978c495095f

    SHA512

    35a9a77d93070a60ee8dfb4150754da61b59641df4b619f44ce94933ddb43d6d88ab1ad612a50541d15e7dc5711922d42b31a5accaf33ab8b9f8dad2eee4cc0e

  • memory/272-73-0x0000000000000000-mapping.dmp

  • memory/1128-93-0x0000000000000000-mapping.dmp

  • memory/1212-67-0x00000000002D0000-0x00000000002D3000-memory.dmp

    Filesize

    12KB

  • memory/1212-54-0x00000000002D0000-0x00000000002D3000-memory.dmp

    Filesize

    12KB

  • memory/1420-92-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1420-91-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1420-90-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1420-86-0x000000000042807A-mapping.dmp

  • memory/1516-71-0x0000000000000000-mapping.dmp

  • memory/1612-69-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1612-70-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1612-68-0x0000000075731000-0x0000000075733000-memory.dmp

    Filesize

    8KB

  • memory/1612-74-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1612-65-0x000000000042807A-mapping.dmp

  • memory/1612-64-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1612-62-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1612-60-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1612-58-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1612-56-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/1612-55-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB