Analysis

  • max time kernel
    147s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    12/01/2022, 23:20

General

  • Target

    191188385_03360767.xlsm

  • Size

    83KB

  • MD5

    e985886873885ec5af8db326bbdc716a

  • SHA1

    e07f7373e695a2ff4d5a373a37a7ef8acfeaa229

  • SHA256

    c2ddab3e04d60aef6cc2b227982e2701eeb4fb51f6a76c1f3047dffe536fccaa

  • SHA512

    ebd95ee67efeec682df439804513a59d7c1cf6bff0eee1bc715a5a0a83cd2beb8810eeabf4c1c089346984874a0f205de6221ee5b62e183c34a67b31d2d0ab2c

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://wateringcanreview.xyz/wp-includes/css/qky11a/

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Downloads MZ/PE file
  • Loads dropped DLL 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\191188385_03360767.xlsm
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1548
    • C:\Windows\SysWow64\rundll32.exe
      C:\Windows\SysWow64\rundll32.exe ..\dwa.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1676
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\dwa.ocx",DllRegisterServer
        3⤵
        • Loads dropped DLL
        • Drops file in System32 directory
        • Suspicious use of WriteProcessMemory
        PID:1080
        • C:\Windows\SysWOW64\rundll32.exe
          C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Smfkmcdoxrkruefw\fnoozkeq.kqj",LVxbjEnDqISxg
          4⤵
            PID:536

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1080-67-0x0000000000280000-0x00000000002A9000-memory.dmp

      Filesize

      164KB

    • memory/1548-54-0x000000002F821000-0x000000002F824000-memory.dmp

      Filesize

      12KB

    • memory/1548-55-0x0000000071AA1000-0x0000000071AA3000-memory.dmp

      Filesize

      8KB

    • memory/1548-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1676-58-0x0000000076451000-0x0000000076453000-memory.dmp

      Filesize

      8KB

    • memory/1676-64-0x0000000000220000-0x0000000000249000-memory.dmp

      Filesize

      164KB