Analysis

  • max time kernel
    118s
  • max time network
    139s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    19/01/2022, 09:15

General

  • Target

    59136a8738af5783756405f46526e99f705dd94a14dd2629de96880814dacc0c.xll

  • Size

    1.7MB

  • MD5

    d9dc8d21d1b662803907276a1c131b2c

  • SHA1

    ad15b7c845390a2964af34255cf50db8c1c98a8e

  • SHA256

    59136a8738af5783756405f46526e99f705dd94a14dd2629de96880814dacc0c

  • SHA512

    680afcc6bd570457b5c146fb9812dbcdf07fc1990c928f5152ac509203accbc8c7e0c194bdd221ac1c01cd63a813218e5b003597293a5e8ddef0fe73a1daca1b

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
  • Blocklisted process makes network request 4 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:1260
    • C:\Windows\SYSTEM32\rundll32.exe
      rundll32 C:\Users\Admin\JavaObjectReflectiveK.dll , dopt
      2⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      • Loads dropped DLL
      PID:2316

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1260-121-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp

    Filesize

    64KB

  • memory/1260-128-0x00007FF89A3C0000-0x00007FF89A3D0000-memory.dmp

    Filesize

    64KB

  • memory/1260-129-0x00007FF89A3C0000-0x00007FF89A3D0000-memory.dmp

    Filesize

    64KB

  • memory/1260-115-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp

    Filesize

    64KB

  • memory/1260-118-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp

    Filesize

    64KB

  • memory/1260-117-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp

    Filesize

    64KB

  • memory/1260-116-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp

    Filesize

    64KB

  • memory/1260-277-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp

    Filesize

    64KB

  • memory/1260-278-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp

    Filesize

    64KB

  • memory/1260-279-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp

    Filesize

    64KB

  • memory/1260-280-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp

    Filesize

    64KB

  • memory/2316-259-0x0000000180000000-0x000000018003C000-memory.dmp

    Filesize

    240KB