Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5f78c88b4538f5b…

MALICIOUS

PDF

29.5 KB Created: 2019-05-04 12:36:42 +01:00 Authoring application: mPDF 5.7
MD5: ecb29530a6e536f594bb9da787c7fc77 SHA-1: 25484f9b46433c1a8d3bede57633e433d4f6896c SHA-256: e5f78c88b4538f5b236e082280803ecf43727ddb66c8fb14f3e53fa1a27b4cf7
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links to external PDF documents, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this file with high confidence. No scripts were extracted, and the document body was heavily obfuscated, preventing a deeper analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9903

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/8090092099093091/Festival-by-Aaron-J-French.pdf
    • http://loaminoo.linkpc.net/8092095091096091/Festival-of-the-Bones-El-Festival-de-Las-Calaveras-The-Book-for-the-Day-of-the-Dead-by-Luis-San-Vicente.pdf
    • http://loaminoo.linkpc.net/8090092097099095/Festival-of-the-Bones-El-Festival-de-las-Calaveras-by-Luis-San-Vicente.pdf
    • http://loaminoo.linkpc.net/1091090091094095091/Eug-ne-s-French-Method-Or-Elementary-French-Lessons-Being-a-Course-of-Easy-Rules-and-Exercises-Introductory-to-the-Author-s-Student-s-Comparative-French-Grammar-by-G-Eugene-Fasnacht.pdf
    • http://loaminoo.linkpc.net/3090094090096093/Home-Run-The-Picture-Life-of-Henry-Aaron-by-Hank-Aaron.pdf
    • http://loaminoo.linkpc.net/6094097098095094/MADAME-BOVARY-Bilingual-Edition-English-French-A-Classic-of-French-Literature-from-the-prolific-French-writer-known-for-Salammb-Sentimental-Education-et-P-cuchet-November-and-Three-Tales-by-Gustave-Flaubert.pdf
    • http://loaminoo.linkpc.net/5095092091094097/Familypedia---French-Language-Articles-in-French-French-Speaking-Countries-La-Francophonie-Pages-in-French-Translations-Needed-Fr-User-Fr-Abraham-Coste-Baronnet-Beaudet-Brice-Baronnet-Charles-Borromee-Beaudet-Charles-Baronnet-by-Source-Wikia.pdf
    • http://loaminoo.linkpc.net/1091090091095095091/Comparative-French-English-Studies-Grammatical-and-Idiomatic-Being-an-Entirely-Re-Written-Edition-of-the-French-Exercises-for-Middle-and-Upper-Forms-Adapted-to-the-Studens-Comparative-French-Grammar-by-G-Eugene-Fasnacht.pdf
    • http://loaminoo.linkpc.net/3090094098094091/Wolverine-by-Jason-Aaron-The-Complete-Collection-Volume-1-by-Jason-Aaron.pdf
    • http://loaminoo.linkpc.net/8093094095093097/Histories-French-Constructions-of-the-Past-Postwar-French-Thought-by-Jacques-Revel.pdf
    • http://loaminoo.linkpc.net/5091098096096097/The-Bourgeois-Frontier-French-Towns-French-Traders-and-American-Expansion-by-Jay-Gitlin.pdf
    • http://loaminoo.linkpc.net/7093090091096098/French-Style-How-to-Think-Shop-and-Dress-like-a-French-Woman-by-Veronique-Vienne.pdf
    • http://loaminoo.linkpc.net/5093094096094099/A-Very-French-Christmas-The-Greatest-French-Holiday-Stories-of-All-Time-by-Guy-de-Maupassant.pdf
    • http://loaminoo.linkpc.net/1096095095097097/Tune-Up-Your-French-Top-10-Ways-to-Improve-Your-Spoken-French-by-Natalie-Schorr.pdf
    • http://loaminoo.linkpc.net/5093097095098093/A-French-Reader-Un-Voyageur-Perdu-French-Readers-by-Yves-Thibault.pdf
    • http://loaminoo.linkpc.net/7093090092096094/French-style-how-to-think-shop-and-dress-like-a-French-Woman-by-Veronica-Vienne.pdf
    • http://loaminoo.linkpc.net/5095099091098095/French-Toast-An-American-in-Paris-Celebrates-the-Maddening-Mysteries-of-the-French-by-Harriet-Rochefort.pdf
    • http://loaminoo.linkpc.net/5098097090093097/Murder-on-the-Orient-Express-French-Learning-Edition-Learn-French-Book-1-by-Agatha-Christie.pdf
    • http://loaminoo.linkpc.net/4096093092097097/A-French-Voice-in-New-York-The-French-Girl-5-by-Anna-Adams.pdf
    • http://loaminoo.linkpc.net/6098093091090093/The-French-Language-Self-Taught-A-Manual-of-French-Idiomatic-Phraseology-Adapted-for-Students-for-Schools-and-for-Tourists-by-Alfred-Sardou.pdf
    • http://loaminoo.linkpc.net/3090094090096093

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