Analysis

  • max time kernel
    123s
  • max time network
    133s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    19/01/2022, 03:23

General

  • Target

    7e2a361d904e56e56ebdc4c4439e77f63246ae4276f573ad5b5427a0658fc5a3.xll

  • Size

    1.7MB

  • MD5

    90628329c8fd992adf0ab9530698cc1e

  • SHA1

    5bdf86da3da6809cf6a231fe8403b9bf6d267308

  • SHA256

    7e2a361d904e56e56ebdc4c4439e77f63246ae4276f573ad5b5427a0658fc5a3

  • SHA512

    ff0cb1e43b57f21307184c5ce0109d28a753cf852888b5161d0ef0c39acffb7a396c3b777634d8d91d2ccd200faf25e4f6b874ef4ff6b9a950750abe8da5f081

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\7e2a361d904e56e56ebdc4c4439e77f63246ae4276f573ad5b5427a0658fc5a3.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:3484
    • C:\Windows\SYSTEM32\rundll32.exe
      rundll32 C:\Users\Admin\JavaObjectReflectC.dll , dopt
      2⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      • Loads dropped DLL
      PID:1856

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1856-259-0x0000000180000000-0x000000018003C000-memory.dmp

    Filesize

    240KB

  • memory/3484-121-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmp

    Filesize

    64KB

  • memory/3484-129-0x00007FF9F7A00000-0x00007FF9F7A10000-memory.dmp

    Filesize

    64KB

  • memory/3484-128-0x00007FF9F7A00000-0x00007FF9F7A10000-memory.dmp

    Filesize

    64KB

  • memory/3484-115-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmp

    Filesize

    64KB

  • memory/3484-118-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmp

    Filesize

    64KB

  • memory/3484-117-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmp

    Filesize

    64KB

  • memory/3484-116-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmp

    Filesize

    64KB

  • memory/3484-281-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmp

    Filesize

    64KB

  • memory/3484-282-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmp

    Filesize

    64KB

  • memory/3484-283-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmp

    Filesize

    64KB

  • memory/3484-284-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmp

    Filesize

    64KB