Malicious PDF — malware analysis report

Static analysis result for SHA-256 a868d8b64b3ffad7…

MALICIOUS

PDF

16.8 KB Created: 2019-04-30 03:42:54 +01:00 Authoring application: mPDF 5.7 First seen: 2020-09-15
MD5: 11f70873a4ca110204e47e8141e73c61 SHA-1: 2e312bf1c23b0dfbd509829ad33afbb389e50544 SHA-256: a868d8b64b3ffad7738445fb626b74e5b5c67b237d57627b212a839fd0b1de27
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded links pointing to external PDF files, a technique often used for SEO poisoning or to distribute malware. The ML classifier also flagged this PDF as malicious 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 0.9925

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://loaminoo.l
    • http://loaminoo.linkpc.net/3098098098099/The-Book-Thief-by-Markus-Zusak.pdf
    • http://loaminoo.linkpc.net/2095095093097091/The-Book-Thief-by-Markus-Zusak.pdf
    • http://loaminoo.linkpc.net/6093095098093/The-Book-Thief-by-Markus-Zusak.pdf
    • http://loaminoo.linkpc.net/5092099094092/The-Book-Thief-by-Markus-Zusak.pdf
    • http://loaminoo.linkpc.net/3097095099094092/The-Book-Thief-by-Markus-Zusak.pdf
    • http://loaminoo.linkpc.net/4090098092096/The-Book-Thief-by-Markus-Zusak.pdf
    • http://loaminoo.linkpc.net/4093090092097/The-Book-Thief-by-Markus-Zusak.pdf
    • http://loaminoo.linkpc.net/7090097098093097/Markus-Zusak-Die-B-cherdiebin-by-Christiane-Althoff.pdf
    • http://loaminoo.linkpc.net/7090097098093098/The-Book-Thief-Markus-Zusak-by-Editorial-Europa.pdf
    • http://loaminoo.linkpc.net/7090097097099093/The-Book-Thief-by-Markus-Zusak----Analysis-by-BookBuddy.pdf
    • http://loaminoo.linkpc.net/7090097098094090/The-Unauthorized-Guide-to-the-History-Behind-Markus-Zusak-s-the-Book-Thief-by-Skyler-Collins.pdf
    • http://loaminoo.linkpc.net/7090097098094091/The-Book-Thief-by-Markus-Zusak---REVIEW-and-SUMMARY-guide-by-Easy2Digest-Summaries.pdf
    • http://loaminoo.linkpc.net/7090097098095099/Summary-of-The-Book-Thief-by-Markus-Zusak-Trivia-Quiz-for-Fans-by-Whiz-Books.pdf
    • http://loaminoo.linkpc.net/7090097098095098/An-Unauthorized-Guide-to-Markus-Zusak-A-Short-Biography-of-the-Author-of-The-Book-Thief-Article-by-Malcolm-Stone.pdf
    • http://loaminoo.linkpc.net/5099097098094096/The-Book-Thief-by-Markus-Zusak----Review-by-Expert-Book-Reviews.pdf
    • http://loaminoo.linkpc.net/7090097097099098/The-Book-Thief-A-Novel-by-Markus-Zusak-Trivia-On-Books-by-Trivion-Books.pdf
    • http://loaminoo.linkpc.net/6094097097091/Fighting-Ruben-Wolfe-Wolfe-Brothers-2-by-Markus-Zusak.pdf
    • http://loaminoo.linkpc.net/3091096092094090/Dogs-Dogs-Dogs-A-Collection-of-Great-Dog-Cartoons-by-Sam-Gross.pdf
    • http://loaminoo.linkpc.net/3095098098091097/Dogs-dogs-Dogs-by-Anne-Emerick.pdf
    • http://loaminoo.linkpc.net/4092092099092090/wagner-markus-german-englisch-dictionary-of-drives-drive-engineering---deutsch-englisch-Technisches-Woerterbuch-Antriebstechnik-by-Markus-Wagner.pdf

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