Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b167a94347ca644…

MALICIOUS

PDF

16.4 KB Created: 2020-03-10 23:40:54 +00:00 Authoring application: mPDF 5.7
MD5: fe32709f161ffdb1d1950d0f6c42bc0b SHA-1: 39ff9b4a04b6c8a166757d5bde46b7c54180ec67 SHA-256: 4b167a94347ca64441333ffb5c08a65de41003e777e61d0226c59c72f325e26b
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded URLs, all pointing to the same domain 'ieuicufioao.myhome.cx'. This indicates a link farm or SEO spam tactic, likely intended to drive traffic to potentially malicious content or phishing pages. No scripts were extracted, and the document body is heavily obfuscated, but the heuristic 'PDF_SEO_LINK_FARM' strongly suggests the intent is to redirect users to external sites. The primary IOC is the dominant host 'ieuicufioao.myhome.cx'.

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://ieuicufioao.myhome.cx/1553552557550/The-Grimm-Legacy-The-Grimm-Legacy-1-by-Polly-Shulman.pdf
    • http://ieuicufioao.myhome.cx/2555559556555553/The-Grimm-Legacy-by-Polly-Shulman.pdf
    • http://ieuicufioao.myhome.cx/7552556550557/The-Grim-Legacy-by-Polly-Shulman.pdf
    • http://ieuicufioao.myhome.cx/1550553551555550551/Grimm-s-Fairy-Tales---Illustrated-by-Mabel-Lucie-Attwell-by-Jacob-Grimm.pdf
    • http://ieuicufioao.myhome.cx/9552559551551553/The-Grimm-Reader-The-Classic-Tales-of-the-Brothers-Grimm-by-Maria-Tatar.pdf
    • http://ieuicufioao.myhome.cx/7550552558555550/Grimm-s-Fairy-Tales-Barnes-and-Noble-Classics-by-Jacob-Grimm.pdf
    • http://ieuicufioao.myhome.cx/4550555551557554/Grimm-s-Fairy-Tales-The-100-Greatest-Books-Ever-Written-by-Jacob-Grimm.pdf
    • http://ieuicufioao.myhome.cx/3552550556552557/The-Complete-Brothers-Grimm-Fairy-Tales-by-Jacob-Grimm.pdf
    • http://ieuicufioao.myhome.cx/7559552551558553/The-Complete-Brothers-Grimm-Fairy-Tales-by-Jacob-Grimm.pdf
    • http://ieuicufioao.myhome.cx/2550554557552553/The-Poets-Grimm-20th-Century-Poems-from-Grimm-Fairy-Tales-by-Jeanne-Marie-Leprince-de-Beaumont.pdf
    • http://ieuicufioao.myhome.cx/5557559558559559/The-Complete-Grimm-s-Fairy-Tales-Black-Illustrated-Classics-Bonus-Free-Audiobook-by-Jacob-Grimm.pdf
    • http://ieuicufioao.myhome.cx/9552559551559554/Grimm-Memories-Grimm-Tales-2-by-Janna-Jennings.pdf
    • http://ieuicufioao.myhome.cx/6550559554551/Grimm-s-Complete-Fairy-Tales-by-Jacob-Grimm.pdf
    • http://ieuicufioao.myhome.cx/5550554558554553/Grimm-s-Complete-Fairy-Tales-by-Jacob-Grimm.pdf
    • http://ieuicufioao.myhome.cx/8558550550555556/The-Brothers-Grimm-101-Fairy-Tales-by-Jacob-Grimm.pdf
    • http://ieuicufioao.myhome.cx/2552552553553555/The-German-Legends-of-the-Brothers-Grimm-by-Jacob-Grimm.pdf
    • http://ieuicufioao.myhome.cx/3551559556558550/The-Juniper-Tree-and-Other-Tales-from-Grimm-by-Jacob-Grimm.pdf
    • http://ieuicufioao.myhome.cx/1550557550552557553/Grimm-s-Fairy-Tales-by-Jacob-Grimm.pdf
    • http://ieuicufioao.myhome.cx/2556552550557551/Grimm-s-Fairy-Tales-Children-s-and-Household-Tales-by-Jacob-Grimm.pdf
    • http://ieuicufioao.myhome.cx/9552559551551554/The-Sisters-Grimm-The-Sisters-Grimm-1-amp-2-by-Michael-Buckley.pdf

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