Malicious PDF — malware analysis report

Static analysis result for SHA-256 77383b24003d83f9…

MALICIOUS

PDF

12.8 KB Created: 2019-04-30 05:37:38 +01:00 Authoring application: mPDF 5.7
MD5: 02cdac2ed1e3bdfbc2d6df9d9a4ef057 SHA-1: db74593dbfcb4537d1e98478e19c256d71906b57 SHA-256: 77383b24003d83f93c42c5998651de90eb9be15aeeef8f022d7bc84f9d606f13
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, many of which are structured as numeric slugs pointing to book titles, indicating a potential SEO manipulation or link farm. While the ML classifier flagged this as malicious, the specific intent beyond link distribution is unclear. No scripts were extracted, but the PDF structure and embedded links suggest a malicious intent to redirect users. The presence of numerous external links, despite some being marked as benign, warrants caution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9006

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://loaminoo.linkpc.net/6093094093094096/Brooke-s-Daughter-by-Adeline-Sergeant.pdf
    • http://loaminoo.linkpc.net/1098096094099093/Falling-Leaves-The-True-Story-of-an-Unwanted-Chinese-Daughter-by-Adeline-Yen-Mah.pdf
    • http://loaminoo.linkpc.net/6093094094090092/Sweet-Adeline-by-T-C-Christman.pdf
    • http://loaminoo.linkpc.net/6093094093092099/Adeline-by-Sara-Eash.pdf
    • http://loaminoo.linkpc.net/1091097094091095/Peeing-in-the-Bush-by-Adeline-Loh.pdf
    • http://loaminoo.linkpc.net/5092092098091/Unlocking-Adeline-by-J-D-Hollyfield.pdf
    • http://loaminoo.linkpc.net/6093094094091094/Adeline-de-Courcy-by-Not-identified-.pdf
    • http://loaminoo.linkpc.net/6093094092099092/Watching-the-Tree-by-Adeline-Yen-Mah.pdf
    • http://loaminoo.linkpc.net/2095091096099097/S-E-C-R-E-T-Secret-1-by-L-Marie-Adeline.pdf
    • http://loaminoo.linkpc.net/6093094092099090/Adeline-s-Porcupine-by-Bobby-Strickland.pdf
    • http://loaminoo.linkpc.net/6093094092094096/Adeline-s-Dream-by-Linda-Aksomitis.pdf
    • http://loaminoo.linkpc.net/6093094093092092/Adeline-and-Edward-by-Suzanne-Doherty.pdf
    • http://loaminoo.linkpc.net/6093094094090093/Accident-to-Adeline-by-Eric-Burgess.pdf
    • http://loaminoo.linkpc.net/8093096098091092/Blaise-Cendrars---Duetto-by-Baldacchino-Adeline.pdf
    • http://loaminoo.linkpc.net/6093094093092090/Burn-The-Fairy-Tales-by-Adeline-Whitmore.pdf
    • http://loaminoo.linkpc.net/6092094093099091/Petit-loge-de-la-jouissance-f-minine-by-Adeline-Fleury.pdf
    • http://loaminoo.linkpc.net/2098093095090/The-Sergeant-by-Dennis-Murphy.pdf
    • http://loaminoo.linkpc.net/1091093096098096097/Shanghai-by-Harriet-Sergeant.pdf
    • http://loaminoo.linkpc.net/3094093091098090/Sergeant-Cuddlington-and-The-War-At-Sea-by-Michael-Pugh.pdf
    • http://loaminoo.linkpc.net/1090093090095095099/The-Drill-Sergeant-s-Women-by-E-M-Lohr.pdf

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