Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9b9aecaecb62023…

MALICIOUS

PDF

24.5 KB Created: 2019-05-01 17:28:55 +01:00 Authoring application: mPDF 5.7
MD5: 6ac5a43291ab7c768f6447965e44f05e SHA-1: 6f71451078c5e4901ceb8bd9902e73f556ba4ad0 SHA-256: a9b9aecaecb620236dec8c92110c4693910dfbe865ef81ada07ef9bc83c1da6e
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file 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 links suggests an attempt to manipulate search engine results or distribute potentially malicious content. The URLs themselves appear to be benign, but the overall structure is suspicious. No scripts were extracted from this sample.

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/1091099091091093095/Ying-s-Best-One-Dish-Meals-Quick-amp-Healthy-Recipes-for-the-Entire-Family-by-Ying-Chang-Compestine.pdf
    • http://loaminoo.linkpc.net/4090094094096094/D-Is-for-Dragon-Dance-by-Ying-Chang-Compestine.pdf
    • http://loaminoo.linkpc.net/2097097091091/Revolution-Is-Not-a-Dinner-Party-by-Ying-Chang-Compestine.pdf
    • http://loaminoo.linkpc.net/1091099091090097095/The-Chinese-Emperor-s-New-Clothes-by-Ying-Chang-Compestine.pdf
    • http://loaminoo.linkpc.net/1091099091090093090/The-Runaway-Rice-Cake-by-Ying-Chang-Compestine.pdf
    • http://loaminoo.linkpc.net/3097099099092097/Secrets-of-the-Terra-Cotta-Soldier-by-Ying-Chang-Compestine.pdf
    • http://loaminoo.linkpc.net/1091099091090097096/The-Story-of-Noodles-Amazing-Chinese-Inventions-by-Ying-Chang-Compestine.pdf
    • http://loaminoo.linkpc.net/1091099091090098091/The-Story-of-Kites-Amazing-Chinese-Inventions-by-Ying-Chang-Compestine.pdf
    • http://loaminoo.linkpc.net/1091099091090093095/Starting-with-Max-How-a-Wise-Stray-Dog-Gave-Me-Strength-and-Inspiration-by-Ying-Ying.pdf
    • http://loaminoo.linkpc.net/1091099091091093091/The-True-Essence-of-Taiji-by-Ying-Ying.pdf
    • http://loaminoo.linkpc.net/1090090091099/The-Pollan-Family-Table-The-Best-Recipes-and-Kitchen-Wisdom-for-Delicious-Healthy-Family-Meals-by-Corky-Pollan.pdf
    • http://loaminoo.linkpc.net/1091099091090098096/The-Divinely-Responding-Classic-Shen-Ying-Ching-A-Translation-Of-The-Shen-Ying-Jing-From-The-Zhen-Jiu-Da-Cheng-by-Chi-Chou-Yang.pdf
    • http://loaminoo.linkpc.net/3091090096099098/Cumber-Recipes-Naturally-Healthy-Cumber-Recipes-For-A-Healthy-Lifestyle-A-Quick-Snack-Or-A-Meal-The-Essential-Kitchen-Series-Book-83-by-Sarah-Sophia.pdf
    • http://loaminoo.linkpc.net/9094099090098092/INSTANT-POT-RECIPES-A-Simple-Pressure-Cooker-Guide-for-Busy-People---Delicious-Meals-Quick-and-Easy-Recipes-Volume-2-by-JACKE-EVENKON.pdf
    • http://loaminoo.linkpc.net/3091090097090099/Pressure-Cooker-Meals-30-Quick-Easy-and-Delicious-One-Pot-Meals-For-Your-Pressure-Cooker-That-You-re-Family-Will-Love-The-Essential-Kitchen-Series-Book-17-by-Sarah-Sophia.pdf
    • http://loaminoo.linkpc.net/3090097098096099/Quick-Fix-Meals-200-Simple-Delicious-Recipes-to-Make-Mealtime-Eas-by-Robin-Miller.pdf
    • http://loaminoo.linkpc.net/7095099095096091/Bowls-of-Plenty-Recipes-for-Healthy-and-Delicious-Whole-Grain-Meals-by-Carolynn-Carre-o.pdf
    • http://loaminoo.linkpc.net/3096091098095092/Fresh-from-the-Vegetarian-Slow-Cooker-200-Recipes-for-Healthy-and-Hearty-One-Pot-Meals-That-Are-Ready-When-You-Are-by-Robin-G-Robertson.pdf
    • http://loaminoo.linkpc.net/1091098092097098093/Mason-Jar-Meals-Soups-Salads-and-Desserts-Quick-and-easy-recipes-for-busy-people-by-Andrea-Stange.pdf
    • http://loaminoo.linkpc.net/1090099093093090096/Sweet-Potato-Recipes-Top-37-Easy-Quick-Healthy-amp-Delicious-Sweet-Potato-Recipes-by-Jamie-Fynn.pdf