Malicious PDF — malware analysis report

Static analysis result for SHA-256 2496ba223419d0f5…

MALICIOUS

PDF

23.4 KB Created: 2019-04-30 05:22:00 +01:00 Authoring application: mPDF 5.7
MD5: ac9517e680103a07ed5f26d674809a0d SHA-1: 99b0798c3d19f1a9fd31e15a2b6b9934b98b37ef SHA-256: 2496ba223419d0f51b27860965d1cf4fb8741869e543f852369539c861785471
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified as a link farm. The ML classifier strongly suggests maliciousness. The primary attack pattern involves directing users to numerous external sites, likely for SEO manipulation or to serve further malicious content. No scripts were extracted, and the document body was heavily corrupted, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9901

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/2090093098094099/In-Search-of-Captain-Zero-A-Surfer-s-Road-Trip-beyond-the-End-of-the-Road-by-Allan-C-Weisbecker.pdf
    • http://loaminoo.linkpc.net/4090097090095/In-Search-of-Captain-Zero-A-Surfer-s-Road-Trip-Beyond-the-End-of-the-Road-by-Allan-C-Weisbecker.pdf
    • http://loaminoo.linkpc.net/9099092096093/It-s-a-Mad-Mad-Mad-Mad-Trip-On-the-Road-of-the-Longest-Two-Week-Family-Road-Trip-in-History-by-Kevin-J-Shay.pdf
    • http://loaminoo.linkpc.net/3093098099097095/Road-Trip-by-A-F-Henley.pdf
    • http://loaminoo.linkpc.net/1091090093094099/Once-Upon-an-Ever-After-Once-Upon-a-Road-Trip-2-by-Angela-N-Blount.pdf
    • http://loaminoo.linkpc.net/6092095092099090/Road-Trip-USA-Route-66-by-Jamie-Jensen.pdf
    • http://loaminoo.linkpc.net/3090097092095090/Racing-the-Moon-Road-Trip-1-by-B-A-Tortuga.pdf
    • http://loaminoo.linkpc.net/3097092097094097/American-Road-Trip-by-Patrick-Flores-Scott.pdf
    • http://loaminoo.linkpc.net/4093097097096098/Road-Trip-Around-Australia-BiteSize-Travel-4-by-Christina-Neubauer.pdf
    • http://loaminoo.linkpc.net/1090091096095098090/Barfing-in-the-Backseat-How-I-Survived-My-Family-Road-Trip-by-Henry-Winkler.pdf
    • http://loaminoo.linkpc.net/3097099092097099/Off-the-Leash-A-Woman-Her-Dog-and-the-Road-Trip-of-a-Lifetime-by-Jean-Ellen-Whatley.pdf
    • http://loaminoo.linkpc.net/5098098098098/The-Soul-of-Baseball-A-Road-Trip-Through-Buck-O-Neil-s-America-by-Joe-Posnanski.pdf
    • http://loaminoo.linkpc.net/4097098099091096/Utopia-Drive-A-Road-Trip-Through-America-s-Most-Radical-Idea-by-Erik-Reece.pdf
    • http://loaminoo.linkpc.net/6090090095091/Letters-to-Zerky-A-Father-s-Legacy-to-a-Lost-Son-and-a-Road-Trip-Around-the-World-by-Bill-Raney.pdf
    • http://loaminoo.linkpc.net/7092098093097/Cruisin-the-Fossil-Freeway-A-Road-Trip-Through-the-Best-of-the-Prehistoric-American-West-by-Kirk-R-Johnson.pdf
    • http://loaminoo.linkpc.net/5096097095092096/Psychics-Healers-Mediums-A-Journalist-a-Road-Trip-and-Voices-from-the-Other-Side-by-Jenniffer-Weigel.pdf
    • http://loaminoo.linkpc.net/1092090095091090/Almost-Anywhere-Road-Trip-Ruminations-on-Love-Nature-National-Parks-and-Nonsense-by-Krista-Schlyer.pdf
    • http://loaminoo.linkpc.net/6096096099098092/Oasis-On-the-Road-to-Perdition-1-by-Max-Allan-Collins.pdf
    • http://loaminoo.linkpc.net/4097095096093090/Off-the-Leash-How-My-Dog-Inspired-Me-to-Quit-My-Job-Pack-My-Car-and-Take-a-Road-Trip-Across-America-to-Reclaim-My-Life-by-Jean-Ellen-Whatley.pdf
    • http://loaminoo.linkpc.net/3092099090091099/One-Day-at-a-Time-2017-A-husband-and-wife-s-87-day-road-trip-through-22-states-in-the-US-on-two-Harley-Softails-by-Hollie-Bell-Schinzing.pdf