Analysis

  • max time kernel
    151s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    20-07-2022 20:23

General

  • Target

    4daa27ed35b8f69d102fb1df910c9c30a890bb15e6fc8281ba8b348ed2a8ba39.exe

  • Size

    383KB

  • MD5

    7a34c314dcb730e9d7b1fb74db78050f

  • SHA1

    af3ab8350547fba0a14bc2d6b8a315a2ec9d2986

  • SHA256

    4daa27ed35b8f69d102fb1df910c9c30a890bb15e6fc8281ba8b348ed2a8ba39

  • SHA512

    c08a4b74673a93841b328eb5aee31cf0ff1f786457a47cc5f00ea323ffd0b8e95be8e6ef0670c1ac5cc84b61ec7b48674a76b6b3fc865675893b5d513ffc8196

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-4084403625-2215941253-1760665084-1000\_RECOVERY_+knsof.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/1B3EF3AC377E5BF8 2. http://tes543berda73i48fsdfsd.keratadze.at/1B3EF3AC377E5BF8 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/1B3EF3AC377E5BF8 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/1B3EF3AC377E5BF8 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/1B3EF3AC377E5BF8 http://tes543berda73i48fsdfsd.keratadze.at/1B3EF3AC377E5BF8 http://tt54rfdjhb34rfbnknaerg.milerteddy.com/1B3EF3AC377E5BF8 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/1B3EF3AC377E5BF8
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/1B3EF3AC377E5BF8

http://tes543berda73i48fsdfsd.keratadze.at/1B3EF3AC377E5BF8

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/1B3EF3AC377E5BF8

http://xlowfznrg4wf7dli.ONION/1B3EF3AC377E5BF8

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 1 IoCs
  • Deletes itself 1 IoCs
  • Adds Run key to start application 2 TTPs 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 12 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4daa27ed35b8f69d102fb1df910c9c30a890bb15e6fc8281ba8b348ed2a8ba39.exe
    "C:\Users\Admin\AppData\Local\Temp\4daa27ed35b8f69d102fb1df910c9c30a890bb15e6fc8281ba8b348ed2a8ba39.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1360
    • C:\Windows\wqgglbbiexkx.exe
      C:\Windows\wqgglbbiexkx.exe
      2⤵
      • 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:2004
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:288
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\4DAA27~1.EXE
      2⤵
      • Deletes itself
      PID:944
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1152

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\wqgglbbiexkx.exe

    Filesize

    383KB

    MD5

    7a34c314dcb730e9d7b1fb74db78050f

    SHA1

    af3ab8350547fba0a14bc2d6b8a315a2ec9d2986

    SHA256

    4daa27ed35b8f69d102fb1df910c9c30a890bb15e6fc8281ba8b348ed2a8ba39

    SHA512

    c08a4b74673a93841b328eb5aee31cf0ff1f786457a47cc5f00ea323ffd0b8e95be8e6ef0670c1ac5cc84b61ec7b48674a76b6b3fc865675893b5d513ffc8196

  • C:\Windows\wqgglbbiexkx.exe

    Filesize

    383KB

    MD5

    7a34c314dcb730e9d7b1fb74db78050f

    SHA1

    af3ab8350547fba0a14bc2d6b8a315a2ec9d2986

    SHA256

    4daa27ed35b8f69d102fb1df910c9c30a890bb15e6fc8281ba8b348ed2a8ba39

    SHA512

    c08a4b74673a93841b328eb5aee31cf0ff1f786457a47cc5f00ea323ffd0b8e95be8e6ef0670c1ac5cc84b61ec7b48674a76b6b3fc865675893b5d513ffc8196

  • memory/1360-54-0x0000000075831000-0x0000000075833000-memory.dmp

    Filesize

    8KB

  • memory/1360-55-0x0000000002010000-0x000000000203E000-memory.dmp

    Filesize

    184KB

  • memory/1360-56-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/1360-61-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2004-62-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2004-64-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB