Overview

overview

10

Static

static

8

prochollow.doc

windows7_x64

10

prochollow.doc

windows10_x64

6

Analysis

  • max time kernel
    107s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7v200217
  • submitted
    17/03/2020, 22:16

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General

  • Target
    prochollow.doc
  • Size 143KB
  • Sample200317-pt9rcrh1l2
  • SHA256 5d077b1341a6472f02aac89488976d4395a91ae4f23657b0344da74f4a560c8d
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Signatures

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetWindowsHookEx 2 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 9 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies registry class 280 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present

Processes

  • C:\Program Files\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\prochollow.doc"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    • Suspicious use of SetThreadContext
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    PID:1832
    • C:\Windows\SysWOW64\svchost.exe
      "C:\Windows\SysWOW64\svchost.exe"
      2⤵
      • Process spawned unexpected child process
      • Suspicious behavior: EnumeratesProcesses
      PID:1920

Network

        MITRE ATT&CK Matrix

        Replay Monitor

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        Downloads

        memory/1832-2-0x0000000008A60000-0x0000000008A64000-memory.dmp
        Download

        memory/1832-6-0x0000000007210000-0x0000000007410000-memory.dmp
        Download

        memory/1920-7-0x0000000000400000-0x0000000000407000-memory.dmp
        Download