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tobias e62a14dafc Add markdown wiki with 473 pages and zk browser

Generate interlinked wiki from master inventory: 397 tool pages,
15 workflow pages, 27 recipe pages, 33 category pages, plus index.
All pages use [[wiki-links]] for cross-navigation between tools,
workflows, recipes, and categories (1782 links total).

Install zk for interactive browsing with fzf search, tag filtering,
and backlink discovery. Add 'fhelp wiki' command and Makefile target.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-03-28 19:50:36 +01:00

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Email & Phishing Analysis

Analyze suspicious email messages for phishing indicators, malicious attachments, and weaponized links.

Steps

Step 1: Header Analysis

Tools: tools/emldump-py, tools/mail-parser

Parse SMTP headers: emldump.py <email.eml>. Check: Received headers (delivery path), Return-Path vs From (spoofing), SPF/DKIM results, X-Mailer.

emldump.py message.eml
python3 -c "import mailparser; mail = mailparser.parse_from_file('<email.eml>'); print(mail.subject)"

Step 2: Attachment Extraction

Tools: tools/emldump-py, tools/msg-extractor

Extract attachments: emldump.py <email.eml> -d. For MSG format: msg-extractor <email.msg>. List all attachments with types and sizes.

emldump.py message.eml
extract_msg <email.msg>

Step 3: Attachment Triage

Tools: tools/file, tools/trid, tools/yara, tools/sha256sum

For each attachment: identify type, compute hash, scan with YARA. Route to appropriate workflow: Document Analysis (Office/PDF), Static Analysis (PE), JavaScript Deobfuscation (JS/HTML).

file specimen.exe
trid document.doc
yara-rules specimen.bin

Step 4: Link Analysis

Tools: tools/unfurl

Extract all URLs from email body and headers. Use Unfurl to decompose URLs (reveal tracking pixels, redirect chains, encoded parameters).

unfurl parse <url>

Step 5: Payload Analysis

Analyze extracted attachments using the appropriate workflow. Common patterns: Office doc with macro → downloads PE, PDF with link → credential harvester, HTML attachment → phishing page.

Step 6: Document IOCs

Record: sender address and IP, subject line, attachment names and hashes, all URLs, C2/phishing domains, email infrastructure (mail server names).

#email #phishing #eml #msg #attachments #headers #workflow

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