Overview

overview

10

Static

static

HJdyTuap.bin.exe

windows7_x64

10

HJdyTuap.bin.exe

windows10_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    21/07/2020, 06:43

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General

  • Target
    HJdyTuap.bin.exe
  • Size 440KB
  • Sample200721-rrevgrjsbx
  • SHA256 7ce2be23716a01fd869e33ae99de79a9c74da78f19f0fcb930da4de5bce49885
  • MD5 SHA1 SHA512
Score
10/10
trojanspywarequasar

Malware Config

Signatures

  • Drops startup file 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of WriteProcessMemory 19 IoCs
  • Quasar RAT

    Quasar is an open source Remote Access Tool.

    trojanspywarequasar

Processes

  • C:\Users\Admin\AppData\Local\Temp\HJdyTuap.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\HJdyTuap.bin.exe"
    1⤵
    • Drops startup file
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1360
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:1480
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1508
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks" /create /tn "starrt" /sc ONLOGON /tr "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" /rl HIGHEST /f
          3⤵
          • Creates scheduled task(s)
          PID:1520

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/1508-0-0x0000000000400000-0x000000000045E000-memory.dmp
          Download

          memory/1508-2-0x0000000000400000-0x000000000045E000-memory.dmp
          Download

          memory/1508-3-0x0000000000400000-0x000000000045E000-memory.dmp
          Download