Analysis

  • max time kernel
    136s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    09/07/2020, 17:18

General

  • Target
    167a1s0ssssd7da.exe
  • Size 717KB
  • Sample200709-c8b66t5den
  • SHA256 0837d362bdddd62f2ecafa411a7b97715dda386a5cdf7723d686687b9a1c776c
  • MD5 SHA1 SHA512

Malware Config

Extracted

Path
  • C:\MSOCache\All Users\{90140000-0011-0000-1000-0000000FF1CE}-C\Read_Me.txt

Ransom Note
  • Attention! All your files, documents, photos, databases and other important files are encrypted The only method of recovering files is to purchase an unique decryptor. Only we can give you this decryptor and only we can recover your files. The server with your decryptor is in a closed network TOR. You can get there by the following ways: ---------------------------------------------------------------------------------------- 1. Download Tor browser - https://www.torproject.org/ 2. Install Tor browser 3. Open Tor Browser 4. Open link in TOR browser: http://7rzpyw3hflwe2c7h.onion/?LLLLLLLL 5. Follow the instructions on this page ---------------------------------------------------------------------------------------- On our page you will see instructions on payment and get the opportunity to decrypt 1 file for free. Alternate communication channel here: http://helpqvrg3cc5mvb3.onion/
URLs
  • http://7rzpyw3hflwe2c7h.onion/?LLLLLLLL

  • http://helpqvrg3cc5mvb3.onion/

Signatures

  • Modifies registry class 20 IoCs
  • Suspicious use of SendNotifyMessage 112 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Modifies service 2 TTPs 6 IoCs
  • Drops startup file 1 IoCs
  • Drops file in Program Files directory 12071 IoCs
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Suspicious behavior: EnumeratesProcesses 4528 IoCs
  • Suspicious use of AdjustPrivilegeToken 40 IoCs
  • Drops desktop.ini file(s) 41 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of FindShellTrayWindow 98 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates connected drives 3 TTPs

Processes

  • C:\Users\Admin\AppData\Local\Temp\167a1s0ssssd7da.exe
    "C:\Users\Admin\AppData\Local\Temp\167a1s0ssssd7da.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Suspicious use of SetThreadContext
    PID:1316
    • C:\Users\Admin\AppData\Local\Temp\167a1s0ssssd7da.exe
      "{path}"
      2⤵
      • Drops startup file
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Drops desktop.ini file(s)
      PID:1496
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Modifies registry class
    • Suspicious use of SendNotifyMessage
    • Suspicious behavior: GetForegroundWindowSpam
    • Modifies service
    • Modifies Installed Components in the registry
    • Suspicious use of AdjustPrivilegeToken
    • Drops desktop.ini file(s)
    • Suspicious use of FindShellTrayWindow
    PID:1696
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Modifies registry class
    • Suspicious use of SendNotifyMessage
    • Modifies Installed Components in the registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1480
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Modifies registry class
    • Suspicious use of SendNotifyMessage
    • Suspicious behavior: GetForegroundWindowSpam
    • Modifies service
    • Modifies Installed Components in the registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1284
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Modifies registry class
    • Modifies service
    • Modifies Installed Components in the registry
    • Suspicious use of AdjustPrivilegeToken
    PID:2020

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1480-14-0x00000000039B0000-0x00000000039B1000-memory.dmp

        memory/1496-0-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/1496-2-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/1696-3-0x0000000003BE0000-0x0000000003BE1000-memory.dmp

        memory/2020-31-0x00000000039D0000-0x00000000039D1000-memory.dmp

        memory/2020-61-0x00000000039D0000-0x00000000039D1000-memory.dmp

        memory/2020-28-0x00000000040F0000-0x00000000040F1000-memory.dmp

        memory/2020-67-0x00000000039D0000-0x00000000039D1000-memory.dmp

        memory/2020-68-0x00000000039D0000-0x00000000039D1000-memory.dmp

        memory/2020-34-0x00000000039D0000-0x00000000039D1000-memory.dmp