Analysis

  • max time kernel
    144s
  • max time network
    147s
  • platform
    windows10-1703_x64
  • resource
    win10-20220901-en
  • resource tags

    arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
  • submitted
    10/11/2022, 10:39

General

  • Target

    4a7f651f6f9f9eff4a8b87759ebdddaa1a44864529ed091c2abc22f0abbdb27e.xls

  • Size

    91KB

  • MD5

    399a939e6df80529463a5f01d5a833c0

  • SHA1

    3f56a9e691c3069c71d7180d4fdc0f94652ba2c2

  • SHA256

    4a7f651f6f9f9eff4a8b87759ebdddaa1a44864529ed091c2abc22f0abbdb27e

  • SHA512

    a403222612e32ededa1d0f0d33e5f0b3f5b5a359e78cf804facf7469a2004833fcef9471502669c410341ff7038842168d4f187d819634aa9e113d1e04170a1f

  • SSDEEP

    1536:wKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgGbCXuZH4gb4CEn9J4Z/is9o2:wKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgm

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://bosny.com/aspnet_client/R50QIOGjmvVlr/

xlm40.dropper

http://navylin.com/autopoisonous/4fZQW/

xlm40.dropper

http://asrani.garudaputih.com/nutabalong/bJYqoUIr99qNfoPDx/

xlm40.dropper

http://db.rikaz.tech/lCx76IlkrBtEsqNFA7/zPYJzpOnzstNOiRHob/

Signatures

  • Process spawned unexpected child process 4 IoCs

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

  • 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 12 IoCs
  • Suspicious use of WriteProcessMemory 8 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\4a7f651f6f9f9eff4a8b87759ebdddaa1a44864529ed091c2abc22f0abbdb27e.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:384
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx
      2⤵
      • Process spawned unexpected child process
      PID:4568
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx
      2⤵
      • Process spawned unexpected child process
      PID:4472
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx
      2⤵
      • Process spawned unexpected child process
      PID:3780
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx
      2⤵
      • Process spawned unexpected child process
      PID:4196

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/384-120-0x00007FFAA2650000-0x00007FFAA2660000-memory.dmp

          Filesize

          64KB

        • memory/384-121-0x00007FFAA2650000-0x00007FFAA2660000-memory.dmp

          Filesize

          64KB

        • memory/384-122-0x00007FFAA2650000-0x00007FFAA2660000-memory.dmp

          Filesize

          64KB

        • memory/384-123-0x00007FFAA2650000-0x00007FFAA2660000-memory.dmp

          Filesize

          64KB

        • memory/384-132-0x00007FFA9F090000-0x00007FFA9F0A0000-memory.dmp

          Filesize

          64KB

        • memory/384-133-0x00007FFA9F090000-0x00007FFA9F0A0000-memory.dmp

          Filesize

          64KB