Malicious PDF — malware analysis report

Static analysis result for SHA-256 e53e97bfe02dd559…

MALICIOUS

PDF

21.4 KB Created: 2019-05-02 05:27:11 +01:00 Authoring application: mPDF 5.7 First seen: 2021-07-10
MD5: 18021aa07d41a55baf937c676da46572 SHA-1: d0589104d603632bb31b7da4cea3ab31f453c061 SHA-256: e53e97bfe02dd55932749815439da024538d75ef079b9a092127ad4e37265862
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, identified by the PDF_SEO_LINK_FARM heuristic. While the document body is heavily obfuscated, the presence of numerous links suggests an attempt to direct users to potentially malicious or unwanted content. The ML classifier also flagged the document as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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://cefasfese.4pu.com/7737735732731/VEGAN-Go-amp-Stay-Manual-by-Anne-Peterson.pdf In PDF document text
    • http://cefasfese.4pu.com/8736733733730730/Vegan-Vegan-Diet-for-Beginners-25-Amazingly-Delicious-Healthy-Recipes-For-Breakfast-Lunch-And-Dinner-To-Start-Your-Vegan-Lifestyle-Vegan-Vegetarian-cooking-low-fat-high-carb-recipes-Book-1-by-Batya-Anderson.pdfIn PDF document text
    • http://cefasfese.4pu.com/2730733731737739/Stay-Through-The-Night-by-Anne-Mather.pdfIn PDF document text
    • http://cefasfese.4pu.com/5733736738735730/Stay-Dead-Elise-Sandburg-2-by-Anne-Frasier.pdfIn PDF document text
    • http://cefasfese.4pu.com/1731738734735738736/Vodka-Is-Vegan-A-Vegan-Bros-Manifesto-for-Better-Living-and-Not-Being-an-A-hole-by-Matt-Letten.pdfIn PDF document text
    • http://cefasfese.4pu.com/1731732731737734733/The-Vegan-Stoner-Cookbook-100-Easy-Vegan-Recipes-to-Munch-by-Sarah-Conrique.pdfIn PDF document text
    • http://cefasfese.4pu.com/1738733731739734/La-Dolce-Vegan-Vegan-Livin-Made-Easy-by-Sarah-Kramer.pdfIn PDF document text
    • http://cefasfese.4pu.com/1731736731732738730/The-Kitchen-Divided-Vegan-Dishes-for-Semi-Vegan-Households-by-Ellen-Jaffe-Jones.pdfIn PDF document text
    • http://cefasfese.4pu.com/1730733735735736731/Vegan-Riot-La-rivoluzione-bolle-in-pentola-Ricette-vegan-per-cuochi-ribelli-by-Paolo-Petralia.pdfIn PDF document text
    • http://cefasfese.4pu.com/6738730738736/Why-Are-You-a-Vegan-and-Other-Wacky-Verse-for-Kids-by-Violet-39-s-Vegan-Comics.pdfIn PDF document text
    • http://cefasfese.4pu.com/1730736732731734738/Teacher-s-Manual-for-the-Legal-Writing-Handbook-by-Anne-Enquist.pdfIn PDF document text
    • http://cefasfese.4pu.com/3734732735739730/Blood-Brother-33-Reasons-My-Brother-Scott-Peterson-Is-Guilty-by-Anne-Bird.pdfIn PDF document text
    • http://cefasfese.4pu.com/4731735738730736/If-I-Stay-If-I-Stay-1-by-Gayle-Forman.pdfIn PDF document text
    • http://cefasfese.4pu.com/3734734737738739/If-I-Stay-If-I-Stay-1-by-Gayle-Forman.pdfIn PDF document text
    • http://cefasfese.4pu.com/8735737738735739/Anne-of-Windy-Poplars-Anne-s-House-of-Dreams-Anne-of-Ingleside-Anne-of-Green-Gables-4-6-by-L-M-Montgomery.pdfIn PDF document text
    • http://cefasfese.4pu.com/3737735732734734/Stay-At-Home-Dead-Stay-At-Home-Dad-Mysteries-1-by-Jeffrey-Allen.pdfIn PDF document text
    • http://cefasfese.4pu.com/1739730732732733/Stay-With-Me-Stay-With-Me-1-by-E-R-Wade.pdfIn PDF document text
    • http://cefasfese.4pu.com/1730731734739739735/Stay-Dead-Stay-Dead-1-by-Steve-Wands.pdfIn PDF document text
    • http://cefasfese.4pu.com/9732736734734734/Terapia-Manual-Manual-Therapy-Metodo-Dorn-Dorn-Method-by-Gamal-Raslan.pdfIn PDF document text
    • http://cefasfese.4pu.com/1731738731733738732/Kindle-Fire-HD-User-Manual-Newbie-to-Expert-in-60-Mins-kindle-fire-kindle-fire-hd-8-kindle-fire-manual-kindle-fire-manual-user-guide-Book-4-by-Jamy-Jackson.pdfIn PDF document text