Malicious PDF — malware analysis report

Static analysis result for SHA-256 77b00ac8f74189f5…

MALICIOUS

PDF

25.1 KB Created: 2019-06-10 06:05:07 +01:00 Authoring application: mPDF 5.7 First seen: 2020-09-04
MD5: 2eceace17dcf98107bfcf06f4dec102a SHA-1: 1ee49212a35da0e84b42caca3d639e19b9f8a897 SHA-256: 77b00ac8f74189f5bc24031ec4a90f9a56d58a5d7321d006c0be6d0c9b6f20df
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, as indicated by the 'PDF_SEO_LINK_FARM' heuristic. While the document body is heavily obfuscated, the presence of numerous URLs suggests an attempt to manipulate search engine results or to redirect users to potentially malicious content. The ML classifier also flagged the document as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9742

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/3739731734730738/The-Gods-Drink-Whiskey-Stumbling-Toward-Enlightenment-in-the-Land-of-the-Tattered-Buddha-by-Stephen-T-Asma.pdf In PDF document text
    • http://cefasfese.4pu.com/1733734732739738/Buddha-A-Story-of-Enlightenment-by-Deepak-Chopra.pdfIn PDF document text
    • http://cefasfese.4pu.com/4737731735739731/99-Drams-of-Whiskey-The-Accidental-Hedonist-s-Quest-for-the-Perfect-Shot-and-the-History-of-the-Drink-by-Kate-Hopkins.pdfIn PDF document text
    • http://cefasfese.4pu.com/1731736732732735738/Asma-s-Indian-Kitchen-Home-cooked-food-brought-to-you-by-Darjeeling-Express-by-Asma-Khan.pdfIn PDF document text
    • http://cefasfese.4pu.com/3731738736733735/On-Monsters-An-Unnatural-History-of-Our-Worst-Fears-by-Stephen-T-Asma.pdfIn PDF document text
    • http://cefasfese.4pu.com/1730732736739733737/The-Essential-Buddha-Enlightenment-Karma-Freedom-Suffering-Non-Self-Happiness-by-Radek-Dobias.pdfIn PDF document text
    • http://cefasfese.4pu.com/8736739733737731/Land-of-Gods-Die-Kinder-vom-Olymp-Gods-Reihe-2-by-Alia-Cruz.pdfIn PDF document text
    • http://cefasfese.4pu.com/3739731733735737/Guide-to-Dakini-Land-The-Highest-Yoga-Tantra-Practice-of-Buddha-Vajrayogini-by-Geshe-Kelsang-Gyatso.pdfIn PDF document text
    • http://cefasfese.4pu.com/4739737732731739/In-a-Land-of-Paper-Gods-by-Rebecca-Mackenzie.pdfIn PDF document text
    • http://cefasfese.4pu.com/1731731738731737734/Enemies-of-the-Enlightenment-The-French-Counter-Enlightenment-and-the-Making-of-Modernity-by-Darrin-M-McMahon.pdfIn PDF document text
    • http://cefasfese.4pu.com/4736731736739733/Whiskey-Secrets-Whiskey-and-Lies-1-by-Carrie-Ann-Ryan.pdfIn PDF document text
    • http://cefasfese.4pu.com/3730734731736731/Land-of-Wooden-Gods-Volume-1-in-The-Holme-Trilogy-by-Jan-Frideg-rd.pdfIn PDF document text
    • http://cefasfese.4pu.com/8734732731736736/Kailash-Mansarovar-The-Land-of-Gods-and-Myths-by-Chandresh-Shastri.pdfIn PDF document text
    • http://cefasfese.4pu.com/2737738734735739/Cataclysm-Return-of-the-Gods-1-by-Stephen-H-King.pdfIn PDF document text
    • http://cefasfese.4pu.com/2737735736738733/Buddha-in-Blue-Jeans-An-Extremely-Short-Simple-Zen-Guide-to-Sitting-Quietly-and-Being-Buddha-by-Tai-Sheridan.pdfIn PDF document text
    • http://cefasfese.4pu.com/2733738739733/Buddha-Vol-4-The-Forest-of-Uruvela-Buddha-4-by-Osamu-Tezuka.pdfIn PDF document text
    • http://cefasfese.4pu.com/2735732731733736/Buddha-Vol-5-Deer-Park-Buddha-5-by-Osamu-Tezuka.pdfIn PDF document text
    • http://cefasfese.4pu.com/9735736730730732/Healthy-Drink-Recipes-All-Natural-Sugar-Free-Gluten-Free-Low-Carb-Paleo-and-Vegan-Drink-Recipes-with-Max-5-Ingredients-by-Elviira-Krebber.pdfIn PDF document text
    • http://cefasfese.4pu.com/4734737735731730/Something-Like-the-Gods-A-Cultural-History-of-the-Athlete-from-Achilles-to-LeBron-by-Stephen-Amidon.pdfIn PDF document text
    • http://cefasfese.4pu.com/7732735739736735/Whiskey-And-Wickedness-Lower-Rideau-River-Valley-of-Carleton-Lanark-Leeds-and-Grenville-Counties-Whiskey-and-Wickedness-1-by-Larry-D-Cotton.pdfIn PDF document text

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