Overview

overview

10

Static

static

904a1s0ssssd7da.exe

windows7_x64

10

904a1s0ssssd7da.exe

windows10_x64

10

Analysis

  • max time kernel
    130s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    09/07/2020, 17:18

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General

  • Target
    904a1s0ssssd7da.exe
  • Size 717KB
  • Sample200709-vm3bfxexta
  • SHA256 bb48fbcf365f8a493866cba9818c84614cfc6a9877a6e30e2f7cb445253be1d9
  • MD5 SHA1 SHA512
Score
10/10
ransomwarepersistencespyware

Malware Config

Extracted

Path

  • \??\M:\Boot\cs-CZ\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/?KKLLLLLL 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/?KKLLLLLL

  • http://helpqvrg3cc5mvb3.onion/

Signatures

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
    persistence
  • Drops file in Program Files directory 12068 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 40 IoCs
  • Suspicious use of SendNotifyMessage 102 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spyware
  • Drops file in Windows directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4528 IoCs
  • Modifies registry class 20 IoCs
  • Enumerates connected drives 3 TTPs
  • Drops startup file 1 IoCs
  • Drops desktop.ini file(s) 41 IoCs
  • Suspicious use of FindShellTrayWindow 88 IoCs
  • Modifies service 2 TTPs 6 IoCs
    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\904a1s0ssssd7da.exe
    "C:\Users\Admin\AppData\Local\Temp\904a1s0ssssd7da.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:900
    • C:\Users\Admin\AppData\Local\Temp\904a1s0ssssd7da.exe
      "{path}"
      2⤵
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Drops startup file
      • Drops desktop.ini file(s)
      PID:1440
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Modifies Installed Components in the registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SendNotifyMessage
    • Drops file in Windows directory
    • Modifies registry class
    • Drops desktop.ini file(s)
    • Suspicious use of FindShellTrayWindow
    • Modifies service
    PID:1816
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Modifies Installed Components in the registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SendNotifyMessage
    • Modifies registry class
    • Suspicious use of FindShellTrayWindow
    PID:320
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Modifies Installed Components in the registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SendNotifyMessage
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of FindShellTrayWindow
    • Modifies service
    PID:836
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Modifies Installed Components in the registry
    • Suspicious use of AdjustPrivilegeToken
    • Modifies registry class
    • Suspicious use of FindShellTrayWindow
    • Modifies service
    PID:1844

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1440-0-0x0000000000400000-0x000000000041E000-memory.dmp
        Download

        memory/1440-2-0x0000000000400000-0x000000000041E000-memory.dmp
        Download

        memory/1816-3-0x0000000003A20000-0x0000000003A21000-memory.dmp
        Download

        memory/1816-4-0x0000000003A20000-0x0000000003A21000-memory.dmp
        Download

        memory/1844-49-0x0000000003F80000-0x0000000003F81000-memory.dmp
        Download

        memory/1844-50-0x0000000003F80000-0x0000000003F81000-memory.dmp
        Download