Analysis

  • max time kernel
    107s
  • max time network
    124s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    22/01/2022, 14:55

General

  • Target
    59136a8738af5783756405f46526e99f705dd94a14dd2629de96880814dacc0c.xll
  • Size 1.7MB
  • Sample220122-satb9sbfh8
  • SHA256 59136a8738af5783756405f46526e99f705dd94a14dd2629de96880814dacc0c
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • Bazar Loader

    Detected loader normally used to deploy BazarBackdoor malware.

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Bazar/Team9 Loader payload 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\59136a8738af5783756405f46526e99f705dd94a14dd2629de96880814dacc0c.xll"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2404
    • C:\Windows\SYSTEM32\rundll32.exe
      rundll32 C:\Users\Admin\JavaObjectReflectiveK.dll , dopt
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      PID:2176

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/2176-259-0x0000000180000000-0x000000018003C000-memory.dmp

        memory/2404-119-0x00007FF7E0830000-0x00007FF7E0840000-memory.dmp

        memory/2404-129-0x00007FF7DCCC0000-0x00007FF7DCCD0000-memory.dmp

        memory/2404-128-0x00007FF7DCCC0000-0x00007FF7DCCD0000-memory.dmp

        memory/2404-115-0x00007FF7E0830000-0x00007FF7E0840000-memory.dmp

        memory/2404-118-0x00007FF7E0830000-0x00007FF7E0840000-memory.dmp

        memory/2404-117-0x00007FF7E0830000-0x00007FF7E0840000-memory.dmp

        memory/2404-116-0x00007FF7E0830000-0x00007FF7E0840000-memory.dmp

        memory/2404-277-0x00007FF7E0830000-0x00007FF7E0840000-memory.dmp

        memory/2404-278-0x00007FF7E0830000-0x00007FF7E0840000-memory.dmp

        memory/2404-279-0x00007FF7E0830000-0x00007FF7E0840000-memory.dmp

        memory/2404-280-0x00007FF7E0830000-0x00007FF7E0840000-memory.dmp