Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dc7dcff42f0cff3…

MALICIOUS

PDF

28.9 KB Created: 2019-04-30 04:07:03 +01:00 Authoring application: mPDF 5.7
MD5: befedd720cdaa1f48682ab1811183d46 SHA-1: f5ee4c05d2410a8add45d074522e18c5ee1d3061 SHA-256: 0dc7dcff42f0cff3eef4cbbbc32362fc4a34a220900b9fe13d3140d3c5a146c3
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various book summaries. While the URLs themselves are marked as benign, the sheer volume and the heuristic's classification suggest a potential attempt to manipulate search engine rankings or to use the document as a platform for link distribution, which can be a precursor to malicious activity. The ML classifier also flagged the document as malicious with high confidence.

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://xiixmcuin.linkpc.net/7203209204206201/Reunion-by-Fred-Uhlman-Book-Analysis-Detailed-Summary-Analysis-and-Reading-Guide-by-Bright-Summaries.pdf
    • http://xiixmcuin.linkpc.net/7206204207209208/Brodeck-s-Report-by-Philippe-Claudel-Book-Analysis-Detailed-Summary-Analysis-And-Reading-Guide-by-Bright-Summaries.pdf
    • http://xiixmcuin.linkpc.net/5207203201202206/The-Ice-People-by-Ren-Barjavel-Book-Analysis-Detailed-Summary-Analysis-and-Reading-Guide-BrightSummaries-com-by-Bright-Summaries.pdf
    • http://xiixmcuin.linkpc.net/5203200204207207/I-Wish-Someone-Were-Waiting-for-Me-Somewhere-by-Anna-Gavalda-Book-Analysis-Detailed-Summary-Analysis-and-Reading-Guide-BrightSummaries-com-by-Bright-Summaries.pdf
    • http://xiixmcuin.linkpc.net/5206206201202208/The-Ice-Princess-by-Camilla-L-ckberg-Book-Analysis-Detailed-Summary-Analysis-and-Reading-Guide-BrightSummaries-com-by-Bright-Summaries.pdf
    • http://xiixmcuin.linkpc.net/5205205204202205/Mend-the-Living-by-Maylis-de-Kerangal-Book-Analysis-Detailed-Summary-Analysis-and-Reading-Guide-BrightSummaries-com-by-Bright-Summaries.pdf
    • http://xiixmcuin.linkpc.net/5204208208209201/Nothing-Holds-Back-the-Night-by-Delphine-de-Vigan-Book-Analysis-Detailed-Summary-Analysis-and-Reading-Guide-by-Bright-Summaries.pdf
    • http://xiixmcuin.linkpc.net/7205204206201202/Americanah-by-Chimamanda-Ngozi-Adichie-Book-Analysis-Detailed-Summary-Analysis-and-Reading-Guide-BrightSummaries-com-by-Bright-Summaries.pdf
    • http://xiixmcuin.linkpc.net/6200205205206209/What-the-Day-Owes-the-Night-by-Yasmina-Khadra-Book-Analysis-Detailed-Summary-Analysis-and-Reading-Guide-BrightSummaries-com-by-Bright-Summaries.pdf
    • http://xiixmcuin.linkpc.net/5208201208205205/The-Truth-About-the-Harry-Quebert-Affair-by-Jo-l-Dicker-Book-Analysis-Detailed-Summary-Analysis-and-Reading-Guide-BrightSummaries-com-by-Bright-Summaries.pdf
    • http://xiixmcuin.linkpc.net/6201206203201206/Zazie-in-the-Metro-by-Louis-Malle-Film-Analysis-Detailed-Summary-Analysis-and-Reading-Guide-by-Bright-Summaries.pdf
    • http://xiixmcuin.linkpc.net/8203204205201/Summary-and-Analysis-Red-Notice-by-Elite-Summaries.pdf
    • http://xiixmcuin.linkpc.net/4208207203203204/Speed-Reading-Speed-Reading-Guide-for-Hacking-Learning-amp-Strategies-for-Speed-Analysis-and-Memorization-Education-Tactics-Summary-Guidebook-Learn-Chess-Master-Coding-Visual-Fast-by-Simon-Thompson.pdf
    • http://xiixmcuin.linkpc.net/1201204207203209205/Purity-A-Novel-by-Jonathan-Franzen-Summary-amp-Analysis-by-Instaread-Summaries.pdf
    • http://xiixmcuin.linkpc.net/8204200200203/Summary-of-You-Can-Heal-Your-Life-by-Louise-L-Hay-Includes-Analysis-by-Elite-Summaries.pdf
    • http://xiixmcuin.linkpc.net/8201208202201/Summary-of-Contagious-by-Jonah-Berger-Includes-Analysis-by-Elite-Summaries.pdf
    • http://xiixmcuin.linkpc.net/8203201205204/Summary-of-Spark-Joy-by-Marie-Kondo-Includes-Analysis-by-Elite-Summaries.pdf
    • http://xiixmcuin.linkpc.net/1200206204209202200/The-Marriage-of-Opposites-by-Alice-Hoffman-Summary-amp-Analysis-by-Instaread-Summaries.pdf
    • http://xiixmcuin.linkpc.net/6205206202209203/Summary-of-Barkskins-by-Annie-Proulx-Includes-Analysis-by-Instaread-Summaries.pdf
    • http://xiixmcuin.linkpc.net/8202208203209/Summary-of-Blink-by-Malcolm-Gladwell-Includes-Analysis-by-Elite-Summaries.pdf

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