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Overview

overview

10

Static

static

403a1s0ssssd7da.exe

windows7_x64

10

403a1s0ssssd7da.exe

windows10_x64

10

Analysis

  • max time kernel
    88s
  • max time network
    153s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    09/07/2020, 17:15

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General

  • Target

    403a1s0ssssd7da.exe

  • Size

    717KB

  • MD5

    b7409b7d45794e78aeaeb8b8b0dcac74

  • SHA1

    a800da4d4a34db9ae4435ebff81fcf7dcae808fc

  • SHA256

    f9397a0438f1e3a8d03aa326dc4910482df49dd295228d9a4dda1f55247fd6e3

  • SHA512

    2c5e6a560d4b3721404e99617c69c5e7f194040563167662b9269f5c6229a3257a38b6c2cddf6bc79dd7c10a7f506225c6e034fee178a8d9965a4ba222a56783

Score
10/10
ransomwareevasiontrojanpersistence

Malware Config

Extracted

Path

\??\M:\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/?VMOPRTUW 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/?VMOPRTUW

http://helpqvrg3cc5mvb3.onion/

Signatures

  • Suspicious behavior: EnumeratesProcesses 2428 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
    persistence
  • Modifies control panel 5 IoCs
    evasion
  • Suspicious use of WriteProcessMemory 9 IoCs
  • Suspicious use of FindShellTrayWindow 44 IoCs
  • Modifies registry class 29 IoCs
  • Checks SCSI registry key(s) 3 TTPs 12 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Drops file in Program Files directory 7988 IoCs
  • Drops desktop.ini file(s) 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 38 IoCs
  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Suspicious use of SendNotifyMessage 23 IoCs
  • Enumerates connected drives 3 TTPs

Processes

  • C:\Users\Admin\AppData\Local\Temp\403a1s0ssssd7da.exe
    "C:\Users\Admin\AppData\Local\Temp\403a1s0ssssd7da.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Suspicious use of SetThreadContext
    PID:3656
    • C:\Users\Admin\AppData\Local\Temp\403a1s0ssssd7da.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Drops file in Program Files directory
      • Drops desktop.ini file(s)
      PID:2220
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Modifies Installed Components in the registry
    • Modifies control panel
    • Suspicious use of FindShellTrayWindow
    • Modifies registry class
    • Checks SCSI registry key(s)
    • Drops desktop.ini file(s)
    • Suspicious use of AdjustPrivilegeToken
    • Checks whether UAC is enabled
    • Suspicious use of SendNotifyMessage
    PID:3132
  • C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe
    "C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe" -ServerName:CortanaUI.AppXa50dqqa5gqv4a428c9y1jjw7m3btvepj.mca
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Modifies control panel
    • Modifies registry class
    • Enumerates system info in registry
    PID:1400
  • C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe
    "C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Modifies control panel
    PID:1520

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/2220-0-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

    Download

  • memory/2220-2-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

    Download