Analysis

  • max time kernel
    151s
  • max time network
    140s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    12-01-2022 23:16

General

  • Target

    c2ddab3e04d60aef6cc2b227982e2701eeb4fb51f6a76c1f3047dffe536fccaa.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/

xlm40.dropper

http://cakemixturereview.xyz/wp-includes/U2ayYVCPRhWqERyw4/

xlm40.dropper

http://15.237.135.38/dza9hr/kjt6/

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.

  • 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 9 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\c2ddab3e04d60aef6cc2b227982e2701eeb4fb51f6a76c1f3047dffe536fccaa.xlsm"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3988
    • 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:2224
      • 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:3912
        • C:\Windows\SysWOW64\rundll32.exe
          C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Krklxcjm\dpnpqawuy.pme",ArxEp
          4⤵
            PID:4080

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2224-276-0x0000000000D10000-0x0000000000D39000-memory.dmp

      Filesize

      164KB

    • memory/3912-279-0x0000000000400000-0x000000000054A000-memory.dmp

      Filesize

      1.3MB

    • memory/3988-119-0x0000024D818A0000-0x0000024D818A2000-memory.dmp

      Filesize

      8KB

    • memory/3988-120-0x0000024D818A0000-0x0000024D818A2000-memory.dmp

      Filesize

      8KB

    • memory/3988-121-0x00007FFF65860000-0x00007FFF65870000-memory.dmp

      Filesize

      64KB

    • memory/3988-122-0x0000024D818A0000-0x0000024D818A2000-memory.dmp

      Filesize

      8KB

    • memory/3988-115-0x00007FFF65860000-0x00007FFF65870000-memory.dmp

      Filesize

      64KB

    • memory/3988-118-0x00007FFF65860000-0x00007FFF65870000-memory.dmp

      Filesize

      64KB

    • memory/3988-117-0x00007FFF65860000-0x00007FFF65870000-memory.dmp

      Filesize

      64KB

    • memory/3988-116-0x00007FFF65860000-0x00007FFF65870000-memory.dmp

      Filesize

      64KB