Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    26/04/2026, 04:13

General

  • Target
    2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe
  • Size 74KB
  • Sample260426-etca7sds2v
  • SHA256 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • qqpass

C2
  • http://www.zigui.org/article.php?id=103822

Attributes
  • url

    http://www.mxm9191.com/myrunner_up.exe

  • user_agent

    Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)

Signatures

  • Family: QQpass

    QQpass is a trojan written in C++..

  • Executes dropped EXE 1 IoCs
  • Modifies system executable filetype association 2 TTPs 5 IoCs
  • Drops file in System32 directory 4 IoCs
  • Drops file in Windows directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 19 IoCs
  • Suspicious behavior: EnumeratesProcesses 28 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe
    "C:\Users\Admin\AppData\Local\Temp\2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe"
    1⤵
    • Modifies system executable filetype association
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1544
    • C:\Windows\system\rundll32.exe
      C:\Windows\system\rundll32.exe
      2⤵
      • Executes dropped EXE
      • Modifies system executable filetype association
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      PID:1272

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        notepad¢¬.exe

        • Path C:\Windows\SysWOW64\notepad¢¬.exe
        • Size 79KB
        • SHA256 aef6881c7d9d3ec0c8c8eaf127cdf89811593a6c7656ca6cf2da0ff14a741141
        • MD5 SHA1 SHA512 SSDEEP TLSH

        rundll32.exe

        • Path C:\Windows\System\rundll32.exe
        • Size 85KB
        • SHA256 79061978233f1076bcc29ec3aa69b7ab295bd8a6c3a94e906a1dffd7e4db2d0f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1272-13-0x000000000040B000-0x000000000040C000-memory.dmp

        memory/1272-16-0x0000000002160000-0x00000000021C4000-memory.dmp

        memory/1272-23-0x0000000000400000-0x0000000000415A00-memory.dmp

        memory/1544-0-0x0000000000400000-0x0000000000415A00-memory.dmp

        memory/1544-14-0x0000000000AF0000-0x0000000000B54000-memory.dmp

        memory/1544-15-0x0000000000400000-0x0000000000415A00-memory.dmp