Analysis

  • max time kernel
    131s
  • max time network
    142s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    19/01/2022, 09:23

General

  • Target

    9bfe3e664dea6ec4c143d6beb35b7cef737163ee64f78e06e4d779859c046138.xll

  • Size

    1.7MB

  • MD5

    13bc88ede0b07077de8c91f1d552939b

  • SHA1

    f517a3933b6aaffe605b8a625c34eeff2ac53cb9

  • SHA256

    9bfe3e664dea6ec4c143d6beb35b7cef737163ee64f78e06e4d779859c046138

  • SHA512

    1814fd33d280e20c5f53e19de0ace86c4e98abf785ef351837458f0b4660bdae3c377bb6a5eda8881fd0ea8b0bde28ed98a319839e747f118422bfda9de2662e

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 2 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\9bfe3e664dea6ec4c143d6beb35b7cef737163ee64f78e06e4d779859c046138.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:684
    • C:\Windows\SYSTEM32\rundll32.exe
      rundll32 C:\Users\Admin\JavaObjectReflectY.dll , dopt
      2⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      • Loads dropped DLL
      PID:2028

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/684-121-0x00007FFCB13B0000-0x00007FFCB13C0000-memory.dmp

    Filesize

    64KB

  • memory/684-128-0x00007FFCAD840000-0x00007FFCAD850000-memory.dmp

    Filesize

    64KB

  • memory/684-129-0x00007FFCAD840000-0x00007FFCAD850000-memory.dmp

    Filesize

    64KB

  • memory/684-115-0x00007FFCB13B0000-0x00007FFCB13C0000-memory.dmp

    Filesize

    64KB

  • memory/684-118-0x00007FFCB13B0000-0x00007FFCB13C0000-memory.dmp

    Filesize

    64KB

  • memory/684-117-0x00007FFCB13B0000-0x00007FFCB13C0000-memory.dmp

    Filesize

    64KB

  • memory/684-116-0x00007FFCB13B0000-0x00007FFCB13C0000-memory.dmp

    Filesize

    64KB

  • memory/684-289-0x00007FFCB13B0000-0x00007FFCB13C0000-memory.dmp

    Filesize

    64KB

  • memory/684-290-0x00007FFCB13B0000-0x00007FFCB13C0000-memory.dmp

    Filesize

    64KB

  • memory/684-291-0x00007FFCB13B0000-0x00007FFCB13C0000-memory.dmp

    Filesize

    64KB

  • memory/684-292-0x00007FFCB13B0000-0x00007FFCB13C0000-memory.dmp

    Filesize

    64KB

  • memory/2028-269-0x0000000180000000-0x000000018003C000-memory.dmp

    Filesize

    240KB