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analyzing-malicious-pdf-with-peepdf

使用 peepdf、pdfid 和 pdf-parser 对恶意 PDF 文档进行静态分析， 提取嵌入的 JavaScript、shellcode 和可疑对象。

Skill by killvxk

IndexedApache-2.0★ 57
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Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

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About

使用 peepdf、pdfid 和 pdf-parser 对恶意 PDF 文档进行静态分析， 提取嵌入的 JavaScript、shellcode 和可疑对象。

Use cases: documents

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What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools
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Secrets
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Install scripts
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Runs as
Python package

Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/analyzing-malicious-pdf-with-peepdf

What's inside

Skill name
analyzing-malicious-pdf-with-peepdf
Description
使用 peepdf、pdfid 和 pdf-parser 对恶意 PDF 文档进行静态分析， 提取嵌入的 JavaScript、shellcode 和可疑对象。
License
Apache-2.0
Instructions
65 lines in SKILL.md · view on GitHub

Before installing

  • Ships executable scripts

Files (4)

  • LICENSE
  • SKILL.md
  • api-reference.md · references/
  • agent.py · scripts/

SKILL.md (first lines)

# 使用 peepdf 分析恶意 PDF

## 适用场景

- 对来自钓鱼邮件的可疑 PDF 附件进行分类
- 对基于 PDF 的漏洞利用文档进行恶意软件分析
- 从 PDF 中提取嵌入的 JavaScript、shellcode 或可执行文件
- 对武器化文档工件进行取证检查
- 为基于 PDF 的威胁构建检测签名

## 前置条件

- Python 3.8+，安装 peepdf-3（pip install peepdf-3）
- Didier Stevens 工具套件中的 pdfid.py 和 pdf-parser.py
- 隔离分析环境（虚拟机或沙箱）
- 可选：PyV8，用于 peepdf 内的 JavaScript 模拟
- 可选：Pylibemu，用于 shellcode 分析

## 工作流程

1. **使用 pdfid 分类**：扫描 PDF 中的可疑关键词（/JS、/JavaScript、/OpenAction、/Launch、/EmbeddedFile）。
2. **交互式分析**：在 peepdf 交互模式下打开 PDF，探索对象结构。
3. **识别可疑对象**：定位包含 JavaScript、流或编码数据的对象。
4. **提取内容**：转储可疑流并解码过滤器（FlateDecode、ASCIIHexDecode）。
5. **去混淆 JavaScript**：分析提取的 JavaScript 中的 shellcode、堆喷射或漏洞利用代码。
6. **VirusTotal 检查**：使用 peepdf vtcheck 将文件哈希与 AV 检测结果交叉验证。
7. **生成 IOC**：提取 URL、域名、哈希值和 shellcode 签名。

## 核心概念

| 概念 | 定义 |
|---------|-------------|
| /OpenAction | PDF 打开时自动执行的操作 |
| /JavaScript /JS | PDF 对象中嵌入的 JavaScript 代码 |
| /Launch | 启动外部应用程序的操作 |
| /EmbeddedFile | 嵌入在 PDF 结构中的文件 |
| FlateDecode | 用于隐藏内容的 zlib 压缩过滤器 |
| Object Streams | 存储在压缩流中的 PDF 对象 |

## 工具与系统

| 工具 | 用途 |
|------|---------|
| peepdf / peepdf-3 | 带 JavaScript 模拟的交互式 PDF 分析 |
| pdfid.py | 扫描可疑关键词的快速分类工具 |
| pdf-parser.py | 深层对象级 PDF 解析 |
| VirusTotal | 哈希查询和 AV 检测交叉验证 |
| CyberChef | 解码和转换提取的载荷 |

## 输出格式

```
分析报告：PDF-MAL-[日期]-[序号]
文件：[filename.pdf]
SHA-256：[哈希值]
可疑关键词：[/JS、/OpenAction 等]
包含 JavaScript 的对象：[对象 ID]
提取的 URL：[列表]
检测到 Shellcode：[是/否]
嵌入文件：[数量和类型]
VirusTotal 检测：[X/Y 引擎]
风险等级：[严重/高/中/低]
```

From killvxk/cybersecurity-skills-zh, Apache-2.0.

More from killvxk/cybersecurity-skills-zh

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Stars
57
Forks
14
Open issues
1
Last commit (this folder)
Mar 17, 2026 (7 months ago)

From GitHub (fetched Oct 24, 2026).

Details

License
Apache-2.0
Repository
github.com/killvxk/cybersecurity-skills-zh
First seen
Oct 24, 2026
Last checked
Oct 24, 2026
Source
GitHubgithub-graphql

More from killvxk

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analyzing-malicious-pdf-with-peepdf skill. Agent Mart. https://agentmart.dev/skills/killvxk-analyzing-malicious-pdf-with-peepdf (last updated 2026-10-24)