Malicious PDF — malware analysis report

Static analysis result for SHA-256 44425c56245d2cbb…

MALICIOUS

PDF

28.9 KB Created: 2019-05-01 19:35:42 +01:00 Authoring application: mPDF 5.7
MD5: 1847cbc800da88cd7110b02dfcb63b32 SHA-1: 9bcefc7c7506a7effef2c6cfca7f76c9e8d74bb9 SHA-256: 44425c56245d2cbb0e97e5bddc664a96c2bb166a7de449a87a71830e9f3e20d3
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF heuristic 'PDF_SEO_LINK_FARM' indicates the presence of numerous external links within the document. The ML classifier also flagged this PDF as malicious. While the document body contains URLs, they appear to be part of a link farm rather than direct lures. The primary attack pattern observed is the distribution of a large number of links, likely to a malicious site or a collection of sites, which is a common technique for phishing or distributing further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9908

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/2099092097096091/Gammer-Gurton-s-Garland-or-The-nursery-Parnassus-a-choice-collection-of-pretty-songs-and-verses-for-the-amusement-of-all-little-good-children-who-can-neither-read-nor-run-by-Joseph-Ritson.pdf
    • http://loaminoo.linkpc.net/8095090094093090/Nursery-Lyrics-And-Other-Verses-for-Children-by-Strachey-Strachey.pdf
    • http://loaminoo.linkpc.net/8092096094092093/Parodies-of-the-Works-of-English-and-American-Authors-Vol-5-Comprising-Ballades-Rondeaus-Villanelles-Triolets-Nursery-Rhymes-and-Children-s-Songs-by-Walter-Hamilton.pdf
    • http://loaminoo.linkpc.net/5090093091093092/Christmas-with-the-Poets-A-Collection-of-Songs-Carols-and-Descriptive-Verses-Relating-to-the-Festival-of-Christmas-from-the-Anglo-Norman-Period-to-the-Present-Time-by-Henry-Vizetelly.pdf
    • http://loaminoo.linkpc.net/1091090091095094091/Read-Me-a-Story-A-Collection-of-Magical-Adventure-Short-Stories-for-Children-by-Nancy-C-Fasnacht.pdf
    • http://loaminoo.linkpc.net/6090093097091096/The-Big-Book-of-Nursery-Rhymes-and-Songs-by-Mary-Novick.pdf
    • http://loaminoo.linkpc.net/2092094098099/Classics-How-we-can-encourage-children-to-read-them-Classics-Why-we-should-encourage-children-to-read-them-Book-2-by-Fiza-Pathan.pdf
    • http://loaminoo.linkpc.net/9091099090099095/Fe-Vers-Feeling-Verses-for-Children-by-Cynthia-Blomquist-Gustavson.pdf
    • http://loaminoo.linkpc.net/7091092091090091/Dhammapada-A-Collection-of-Verses-from-the-Pali-Canon-of-Buddhism-by-Anonymous.pdf
    • http://loaminoo.linkpc.net/8092097093099094/A-Good-Lookin-Horse-Cowboy-Poetry-and-Other-Verses-by-Stan-Tixier.pdf
    • http://loaminoo.linkpc.net/6093095095097090/The-Book-of-Mormon-An-Account-Written-by-the-Hand-of-Mormon-Upon-Plates-Taken-from-the-Plates-of-Nephi-Tr-by-Joseph-Smith-Division-Into-Chapters-and-Verses-with-References-by-Orson-Pratt-by-Joseph-Smith-Jr-.pdf
    • http://loaminoo.linkpc.net/7094092095098098/The-Repulse-of-Beaucourt-An-Episode-of-New-England-Verses-Read-at-the-Annual-Dinner-of-the-Colonial-Society-of-Massachusetts-at-the-House-of-the-Algonquin-Club-Boston-November-21-1894-by-Abner-Cheney-Goodell.pdf
    • http://loaminoo.linkpc.net/8099094092091094/The-Boxcar-Children-The-Boxcar-Children-Time-to-Read-Level-2-by-Gertrude-Chandler-Warner.pdf
    • http://loaminoo.linkpc.net/5090097092091/Children-of-Saba-by-N-K-Read.pdf
    • http://loaminoo.linkpc.net/9097092098095/Why-We-Make-Mistakes-How-We-Look-Without-Seeing-Forget-Things-in-Seconds-and-Are-All-Pretty-Sure-We-Are-Way-Above-Average-by-Joseph-T-Hallinan.pdf
    • http://loaminoo.linkpc.net/1092096099099096/Seasons-in-the-Sun-Night-Songs-Collection-0-5-by-Kristen-Strassel.pdf
    • http://loaminoo.linkpc.net/7097095099097093/Goddess-s-Choice-The-Children-of-the-Gods-Origins-1-by-I-T-Lucas.pdf
    • http://loaminoo.linkpc.net/6093096091094/Good-bye-Maoriland-The-Songs-and-Sounds-of-New-Zealand-s-Great-War-by-Chris-Bourke.pdf
    • http://loaminoo.linkpc.net/7091093092095095/Dragons-Choice-Sorcha-s-Children-Book-1-by-Debbie-Mumford.pdf
    • http://loaminoo.linkpc.net/1090096098091094095/The-Vaccination-Debate-Making-the-Right-Choice-for-You-and-Your-Children-by-Chris-Spinelli.pdf

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