Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c80423d2bb6d9cf…

MALICIOUS

PDF

16.4 KB Created: 2019-04-30 04:00:35 +01:00 Authoring application: mPDF 5.7
MD5: 550c32bc42dcaadad867788727217fae SHA-1: 42bc69204c204171a536a88ed11321e8758208b3 SHA-256: 3c80423d2bb6d9cf8a1f0bb338d5d8135bdae544a8c68b5e8db8806c2bdbb13d
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs, identified as a link farm. While the URLs themselves are currently marked as benign, the sheer volume and the nature of the PDF_SEO_LINK_FARM heuristic suggest a malicious intent to direct users to external resources. No scripts were extracted from this sample, limiting further analysis of its behavior. The attack pattern is inferred from the link farm heuristic.

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/8097091098096097/The-Goldfinch-by-Donna-Tartt----Review-by-Expert-Book-Reviews.pdf
    • http://loaminoo.linkpc.net/9098099090097096/Missing-You-by-Harlan-Coben----Review-by-Expert-Book-Reviews.pdf
    • http://loaminoo.linkpc.net/5099097098094096/The-Book-Thief-by-Markus-Zusak----Review-by-Expert-Book-Reviews.pdf
    • http://loaminoo.linkpc.net/6096094096091/The-Invention-of-Wings-by-Sue-Monk-Kidd----Review-by-Expert-Book-Reviews.pdf
    • http://loaminoo.linkpc.net/4093095090092/The-Goldfinch-by-Donna-Tartt.pdf
    • http://loaminoo.linkpc.net/2094096095097092/The-Goldfinch-by-Donna-Tartt.pdf
    • http://loaminoo.linkpc.net/4093098090093/The-Goldfinch-by-Donna-Tartt.pdf
    • http://loaminoo.linkpc.net/9091091090096/The-Goldfinch-by-Donna-Tartt.pdf
    • http://loaminoo.linkpc.net/3094095097097/The-Little-Friend-by-Donna-Tartt.pdf
    • http://loaminoo.linkpc.net/5090093090098096/A-Christmas-Pageant-by-Donna-Tartt.pdf
    • http://loaminoo.linkpc.net/1090091099092098091/The-Little-Friend-21-Great-Bloomsbury-Reads-For-The-21st-Century-by-Donna-Tartt.pdf
    • http://loaminoo.linkpc.net/1090094091098091096/Child-Adolescent-Mental-Health-CNS-Review-Child-Adolescent-Nurse-Review-Book-1-by-Kathleen-Courtney.pdf
    • http://loaminoo.linkpc.net/4097097092094093/Reincarnation-of-the-Strongest-Sword-God-Book-3---Hidden-Expert-by-Lucky-Old-Cat.pdf
    • http://loaminoo.linkpc.net/2098092096090095/LOST-and-PROFOUND-The-Rejected-Book-Reviews-by-Famous-People-by-Mark-McKirdy.pdf
    • http://loaminoo.linkpc.net/8096090098090095/The-Storyteller-Jodi-Picoult---Review-by-Instant-Book-Club-Parties.pdf
    • http://loaminoo.linkpc.net/1090096093090090093/Inferno-by-Dan-Brown-Book-Review-Robert-Langdon-Series-by-Laura-Leblanc.pdf
    • http://loaminoo.linkpc.net/7090097098094091/The-Book-Thief-by-Markus-Zusak---REVIEW-and-SUMMARY-guide-by-Easy2Digest-Summaries.pdf
    • http://loaminoo.linkpc.net/4098090099099098/The-Paris-Review-Interviews-II-Wisdom-from-the-World-s-Literary-Masters-by-The-Paris-Review.pdf
    • http://loaminoo.linkpc.net/2095093092092096/Glenn-Hates-Books-Vol-1-Brutally-Honest-Book-Reviews-by-Glenn-Conley.pdf
    • http://loaminoo.linkpc.net/3090097098097094/Modern-Classics-Book-1-by-Donna-Hay.pdf
    • http://loaminoo.linkpc.net/1090094091098091096/Child-Adoles

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