Malicious PDF — malware analysis report

Static analysis result for SHA-256 577df599a6a54196…

MALICIOUS

PDF

15.4 KB Created: 2019-04-30 20:28:43 +01:00 Authoring application: mPDF 5.7
MD5: f0c6ca0287cd009ab78c39e11494fc8e SHA-1: 310765a4c1b4c04c599e4b0f26d1cad6fef84a89 SHA-256: 577df599a6a541965f6b1c08569f14dc187ddba9eaa281941754bf2ea25198df
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier as malicious. It contains a large number of embedded URLs, identified as a 'PDF_SEO_LINK_FARM' heuristic, which is a common technique for SEO poisoning or distributing malicious content. While the URLs themselves are currently marked as benign, the sheer volume and the heuristic firing suggest a malicious intent, likely to manipulate search results or redirect users to harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

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/3092091093099098/Gunpowder-Plot-Daisy-Dalrymple-15-by-Carola-Dunn.pdf
    • http://loaminoo.linkpc.net/1094093098099097/Die-Laughing-Daisy-Dalrymple-12-by-Carola-Dunn.pdf
    • http://loaminoo.linkpc.net/5090095093099097/A-Mourning-Wedding-Daisy-Dalrymple-13-by-Carola-Dunn.pdf
    • http://loaminoo.linkpc.net/5090095093092098/To-Davy-Jones-Below-Daisy-Dalrymple-9-by-Carola-Dunn.pdf
    • http://loaminoo.linkpc.net/1094093098097099/Sheer-Folly-Daisy-Dalrymple-18-by-Carola-Dunn.pdf
    • http://loaminoo.linkpc.net/1094093099092090/Rattle-His-Bones-Daisy-Dalrymple-8-by-Carola-Dunn.pdf
    • http://loaminoo.linkpc.net/2092095096098098/Black-Ship-Daisy-Dalrymple-17-by-Carola-Dunn.pdf
    • http://loaminoo.linkpc.net/1094093092094093/Sheer-Folly-Daisy-Dalrymple-18-by-Carola-Dunn.pdf
    • http://loaminoo.linkpc.net/3091094094095098/Requiem-for-a-Mezzo-Daisy-Dalrymple-3-by-Carola-Dunn.pdf
    • http://loaminoo.linkpc.net/1095098093096090/Anthem-for-Doomed-Youth-Daisy-Dalrymple-19-by-Carola-Dunn.pdf
    • http://loaminoo.linkpc.net/1094099099090094/Death-at-Wentwater-Court-Daisy-Dalrymple-1-by-Carola-Dunn.pdf
    • http://loaminoo.linkpc.net/5090095094099090/Anthem-For-Doomed-Youth-Daisy-Dalrymple-19-by-Carola-Dunn.pdf
    • http://loaminoo.linkpc.net/4098099096093091/Murder-on-the-Flying-Scotsman-Daisy-Dalrymple-4-by-Carola-Dunn.pdf
    • http://loaminoo.linkpc.net/2098092094094092/Faith-and-Treason-The-Story-of-the-Gunpowder-Plot-by-Antonia-Fraser.pdf
    • http://loaminoo.linkpc.net/2090094099091093/Once-upon-a-Kiss-by-Carola-Dunn.pdf
    • http://loaminoo.linkpc.net/3098094095096093/The-Man-in-the-Green-Coat-by-Carola-Dunn.pdf
    • http://loaminoo.linkpc.net/3098095097097096/Lady-in-the-Briars-Black-Sheep-Trilogy-2-by-Carola-Dunn.pdf
    • http://loaminoo.linkpc.net/2097094096095096/Plot-amp-Structure-Techniques-and-Exercises-for-Crafting-a-Plot-That-Grips-Readers-from-Start-to-Finish-by-James-Scott-Bell.pdf
    • http://loaminoo.linkpc.net/2097098091094095/Daisy-s-Story-Daisy-s-Adventures-1-by-Margaret-O-39-Connor.pdf
    • http://loaminoo.linkpc.net/4094098096099096/Daisy-and-the-Pirates-Daisy-Tannenbaum-1-by-J-T-Allen.pdf
    • http://loaminoo.linkpc.net/1094099099090094/Death-at-Wentwater-Court-Daisy-Dalrympl

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