Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7353e12a1cfcec1…

MALICIOUS

PDF

19.4 KB Created: 2019-05-07 03:24:14 +01:00 Authoring application: mPDF 5.7
MD5: 0c56ebb27ded218505d6db6b4a20b065 SHA-1: 750d00585883300c9896f613b8323f73ade2bc20 SHA-256: d7353e12a1cfcec1481844c687752e1219be4e7fc5309b97af28cf2320cc8e62
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier strongly indicated maliciousness. While the specific intent of the linked PDFs is unclear, the sheer volume and the suspicious domain suggest a malicious distribution or redirection scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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://xiixmcuin.linkpc.net/3201207206206205/Simon-s-Cat-vs-the-World-Simon-s-Cat-4-by-Simon-Tofield.pdf
    • http://xiixmcuin.linkpc.net/3201208200201202/The-Bumper-Book-of-Simon-s-Cat-Simon-s-Cat-4-75-by-Simon-Tofield.pdf
    • http://xiixmcuin.linkpc.net/3201208200207209/Play-Time-Simon-s-Cat-4-5-by-Simon-Tofield.pdf
    • http://xiixmcuin.linkpc.net/4207200205207207/Simon-s-Cat-by-Simon-Tofield.pdf
    • http://xiixmcuin.linkpc.net/3204200207206207/Simon-Thorn-and-the-Wolf-s-Den-Simon-Thorn-1-by-Aimee-Carter.pdf
    • http://xiixmcuin.linkpc.net/3206203207206200/Mark-The-Gospel-of-Simon-Peter-Simon-Peter-The-Character-of-a-Disciple---What-Mark-Recorded-by-B-Cobbey-Crisler.pdf
    • http://xiixmcuin.linkpc.net/4206203205205209/Simon-and-the-Messy-World-by-Sophia-Olson.pdf
    • http://xiixmcuin.linkpc.net/4204207209200/Krakatoa-The-Day-the-World-Exploded-by-Simon-Winchester.pdf
    • http://xiixmcuin.linkpc.net/5202207204208200/The-Kingfisher-Atlas-of-World-History-by-Simon-Adams.pdf
    • http://xiixmcuin.linkpc.net/5202207205205209/The-Kingfisher-Atlas-of-the-Ancient-World-by-Simon-Adams.pdf
    • http://xiixmcuin.linkpc.net/1200209204207207200/The-Zombie-Simon-Garth-4-of-4-The-Zombie-Simon-Garth-Vol-1-by-Kyle-Hotz.pdf
    • http://xiixmcuin.linkpc.net/1200204201200201202/How-Bizarre-Pauly-Fuemana-and-the-Song-That-Stormed-the-World-by-Simon-Grigg.pdf
    • http://xiixmcuin.linkpc.net/4203206204207204/The-Map-That-Changed-the-World-William-Smith-amp-the-Birth-of-Modern-Geology-by-Simon-Winchester.pdf
    • http://xiixmcuin.linkpc.net/5202203206200201/Fermat-s-Last-Theorem-The-Story-of-a-Riddle-That-Confounded-the-World-s-Greatest-Minds-for-358-Years-temp-by-Simon-Singh.pdf
    • http://xiixmcuin.linkpc.net/2200208208208209/Soccernomics-Why-England-Loses-Why-Germany-and-Brazil-Win-and-Why-the-U-S-Japan-Australia-Turkey--and-Even-Iraq--Are-Destined-to-Become-the-Kings-of-the-World-s-Most-Popular-Sport-by-Simon-Kuper.pdf
    • http://xiixmcuin.linkpc.net/9202209204209/Simon-Says-by-William-Poe.pdf
    • http://xiixmcuin.linkpc.net/4206200201205208/No-Getting-Over-You-by-Suzanne-Simon.pdf
    • http://xiixmcuin.linkpc.net/2204203203209206/The-Key-by-Simon-Toyne.pdf
    • http://xiixmcuin.linkpc.net/1202200206209201/Only-We-Know-by-Simon-Packham.pdf
    • http://xiixmcuin.linkpc.net/8209202200201209/W-G-Grace-by-Simon-Rae.pdf
    • http://xiixmcuin.linkpc.net/5202207205205209/The-Kingfisher-Atlas

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