Malicious PDF — malware analysis report

Static analysis result for SHA-256 78b9321b3cf98e47…

MALICIOUS

PDF

13.9 KB Created: 2019-04-30 04:12:11 +01:00 Authoring application: mPDF 5.7
MD5: 245ac115f92dea2dab94ae4729fd4d84 SHA-1: 4cc8a957036c10b0e73f0a90877e45519a6adbd6 SHA-256: 78b9321b3cf98e47801907f506ae7f55b6563c8cb0a701e0cacddd85bd476ea7
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external websites, a technique often used for SEO spam or to direct users to malicious content. The ML classifier also flagged this PDF as malicious. While the URLs themselves are currently marked as benign, the sheer volume and the heuristic firing indicate a malicious intent to drive traffic to these sites, potentially for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

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.lin
    • http://loaminoo.linkpc.net/4091091092091099/Made-for-You-The-Best-Mistake-2-by-Lauren-Layne.pdf
    • http://loaminoo.linkpc.net/1090099099097091/Only-with-You-The-Best-Mistake-1-by-Lauren-Layne.pdf
    • http://loaminoo.linkpc.net/3094091094090095/Someone-Like-You-Oxford-3-by-Lauren-Layne.pdf
    • http://loaminoo.linkpc.net/2094092095099092/Runaway-Groom-I-Do-I-Don-t-2-by-Lauren-Layne.pdf
    • http://loaminoo.linkpc.net/7095099098090098/Runaway-Groom-I-Do-I-Don-t-2-by-Lauren-Layne.pdf
    • http://loaminoo.linkpc.net/1098095091/Irresistibly-Yours-Oxford-1-by-Lauren-Layne.pdf
    • http://loaminoo.linkpc.net/1093097094/Frisk-Me-New-York-s-Finest-1-by-Lauren-Layne.pdf
    • http://loaminoo.linkpc.net/3099095094/For-Better-or-Worse-The-Wedding-Belles-2-by-Lauren-Layne.pdf
    • http://loaminoo.linkpc.net/5098098095/I-Knew-You-Were-Trouble-Oxford-4-by-Lauren-Layne.pdf
    • http://loaminoo.linkpc.net/8090095090/Hot-Asset-21-Wall-Street-1-by-Lauren-Layne.pdf
    • http://loaminoo.linkpc.net/4092094090095090/Steal-Me-New-York-s-Finest-2-by-Lauren-Layne.pdf
    • http://loaminoo.linkpc.net/4093095096/To-Love-and-to-Cherish-The-Wedding-Belles-3-by-Lauren-Layne.pdf
    • http://loaminoo.linkpc.net/3099097092091094/The-Snake-Mistake-Mystery-The-Great-Mistake-Mysteries-3-by-Sylvia-McNicoll.pdf
    • http://loaminoo.linkpc.net/1090096093092099/My-Favorite-Mistake-My-Favorite-Mistake-1-by-Chelsea-M-Cameron.pdf
    • http://loaminoo.linkpc.net/2090096097096096/Right-Kind-of-Mistake-Right-Kind-of-Mistake-1-by-Rebecca-Thomas.pdf
    • http://loaminoo.linkpc.net/4096091095092096/Broad-Strokes-15-Women-Who-Made-Art-and-Made-History-by-Bridget-Quinn.pdf
    • http://loaminoo.linkpc.net/4092090090094095/Crushed-by-Layne-Gray.pdf
    • http://loaminoo.linkpc.net/2091096094098092/Market-for-Love-by-Jamaica-Layne.pdf
    • http://loaminoo.linkpc.net/2098099092092094/Knight-Moves-by-Jamaica-Layne.pdf
    • http://loaminoo.linkpc.net/3090096095092090/Achievement-Tentacle-Lust-by-N-K-Layne.pdf

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