Malicious PDF — malware analysis report

Static analysis result for SHA-256 f626e05e455321b1…

MALICIOUS

PDF

18.1 KB Created: 2020-03-14 00:30:09 +00:00 Authoring application: mPDF 5.7
MD5: 7ffdecab3f4a60bb2723f7c1de170b62 SHA-1: ea71763638d4c6c7310c4b2f28d2cb1c5d47c1f3 SHA-256: f626e05e455321b1c4fd3154cd6af319a2bf426f378f15eeee68a1d3d915b03e
60 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains a large number of embedded URLs pointing to a single domain, suggesting a link farm or redirection scheme. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, with many using numeric slugs, which is characteristic of SEO poisoning or traffic generation tactics. The document body, though heavily obfuscated, contains these URLs, reinforcing the finding. No scripts were extracted, and the primary malicious activity appears to be directing users to potentially malicious or unwanted content via these links.

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://calistazz.myhome.cx/1861867867860861868/My-First-Spanish-Word-Board-Book-mi-Primer-Libro-De-Palabras-En-Espanol-by-Angela-Wilkes.pdf
    • http://calistazz.myhome.cx/1861867866869860866/The-Big-Book-of-Dinosaurs-by-Angela-Wilkes.pdf
    • http://calistazz.myhome.cx/1861867867860862860/Children-s-Quick-and-Easy-Cookbook-by-Angela-Wilkes.pdf
    • http://calistazz.myhome.cx/3861861861868867/Little-Round-the-World-Cookbook---Internet-Linked-by-Angela-Wilkes.pdf
    • http://calistazz.myhome.cx/1861867866869860863/Japanese-English-Bilingual-Visual-Dictionary-by-Angela-Wilkes.pdf
    • http://calistazz.myhome.cx/1861867867860861862/Mandarin-Chinese-English-Bilingual-Visual-Dictionary-by-Angela-Wilkes.pdf
    • http://calistazz.myhome.cx/9860868863864864/The-Everything-Giant-Book-of-Word-Searches-Volume-III-More-than-300-new-puzzles-for-the-biggest-word-search-fans-by-Charles-Timmerman.pdf
    • http://calistazz.myhome.cx/7867860865866864/Angela-Gheorghiu-My-Passionate-Gypsy-Mezzo-Soprano-A-Romanian-Version-Of-Carmen-Angela-Gheorghiu-s-Lover-Book-3-by-Gianni-Truvianni.pdf
    • http://calistazz.myhome.cx/6869869868865/Board-Resolution-Knights-of-the-Board-Room-1-by-Joey-W-Hill.pdf
    • http://calistazz.myhome.cx/1861867866867867868/Witch-in-Training-A-Blair-Wilkes-Mystery-Book-2-by-Elle-Adams.pdf
    • http://calistazz.myhome.cx/6869860863862862/Colors-Board-Book-by-Thierry-Laval.pdf
    • http://calistazz.myhome.cx/6860863860863860/The-Night-Before-Christmas-Board-Book-by-Clement-C-Moore.pdf
    • http://calistazz.myhome.cx/3867865866865864/Room-on-the-Broom-Board-Book-by-Julia-Donaldson.pdf
    • http://calistazz.myhome.cx/1866862863869862/Hush-Little-Alien-Board-Book-by-Daniel-Kirk.pdf
    • http://calistazz.myhome.cx/8863861861863863/ABC-Animal-Rhymes-for-You-and-Me-Board-Book-by-Giles-Andreae.pdf
    • http://calistazz.myhome.cx/1861862861866867869/Munch-Mini-Board-Book-by-Matthew-Van-Fleet.pdf
    • http://calistazz.myhome.cx/3868862861861862/Happy-Halloween-Curious-George-tabbed-board-book-by-H-A-Rey.pdf
    • http://calistazz.myhome.cx/7860861866863863/Jingle-Bells-A-Chubby-Board-Book-by-Normand-Chartier.pdf
    • http://calistazz.myhome.cx/3861862865865867/Little-Blue-Truck-Leads-the-Way-board-book-by-Alice-Schertle.pdf
    • http://calistazz.myhome.cx/1860867868868867861/Goodnight-Moon-Board-Book-Bunny-by-Margaret-Wise-Brown.pdf
    • http://calistazz.myhome.cx/7867860

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