Malicious PDF — malware analysis report

Static analysis result for SHA-256 836a24c948eb6ac2…

MALICIOUS

PDF

13.7 KB Created: 2019-05-01 20:44:05 +01:00 Authoring application: mPDF 5.7
MD5: 8c7525ab81883e940cb3fa4e6b0a1e24 SHA-1: afda1c69bbc85a7cb5d6b633e11e95331e0aa1b3 SHA-256: 836a24c948eb6ac2ae3ebe9d2293801bfeb97ef48d6fe3b57d7df546a25dd532
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF document contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various book titles hosted on the 'loaminoo.linkpc.net' domain. While the individual URLs are currently marked as benign, the sheer volume and the nature of the heuristic suggest a potential attempt to lure users into downloading further content, which could be malicious. No scripts were extracted from this sample.

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/4092093097096093/The-Finest-Line-The-Line-Trilogy-1-by-Catherine-Taylor.pdf
    • http://loaminoo.linkpc.net/2099099094090093/A-Line-Crossed-The-Line-Trilogy-2-by-Catherine-Taylor.pdf
    • http://loaminoo.linkpc.net/2099099094091092/A-Line-Drawn-The-Line-Trilogy-3-by-Catherine-Taylor.pdf
    • http://loaminoo.linkpc.net/8094097095092090/Hamlet-Easiest-to-read-with-line-by-line-interpretations-by-William-Shakespeare.pdf
    • http://loaminoo.linkpc.net/6091097093094092/Erasing-the-Line-Toeing-the-Line-3-by-Allyson-Lindt.pdf
    • http://loaminoo.linkpc.net/2099096096094098/Drawing-the-Line-The-Line-2-by-Kimberly-Kincaid.pdf
    • http://loaminoo.linkpc.net/6091098098094094/The-Fragile-Line-Part-One-The-Fragile-Line-1-by-Alicia-Kobishop.pdf
    • http://loaminoo.linkpc.net/1099092097093091/Last-Line-Last-Line-1-by-Harper-Fox.pdf
    • http://loaminoo.linkpc.net/4091093099090/Take-One-Above-the-Line-1-by-Karen-Kingsbury.pdf
    • http://loaminoo.linkpc.net/1094096097099091/Out-of-Mind-Out-of-Line-3-by-Jen-McLaughlin.pdf
    • http://loaminoo.linkpc.net/3094091097091098/The-Foul-Line-by-F-Thibou.pdf
    • http://loaminoo.linkpc.net/6096098096/A-Line-in-the-Dark-by-Malinda-Lo.pdf
    • http://loaminoo.linkpc.net/4091095090094/Take-Two-Above-the-Line-2-by-Karen-Kingsbury.pdf
    • http://loaminoo.linkpc.net/3098092093093099/Ship-of-the-Line-by-C-S-Forester.pdf
    • http://loaminoo.linkpc.net/3095099099094096/End-of-the-Line-by-Lara-Frater.pdf
    • http://loaminoo.linkpc.net/8094097095097096/The-Green-Line-by-E-C-Diskin.pdf
    • http://loaminoo.linkpc.net/1091091098091098094/On-the-Line-Off-the-Ice-2-by-Stina-Lindenblatt.pdf
    • http://loaminoo.linkpc.net/2098099093098/The-Line-by-Olga-Grushin.pdf
    • http://loaminoo.linkpc.net/7092093096097/Take-Four-Above-the-Line-4-by-Karen-Kingsbury.pdf
    • http://loaminoo.linkpc.net/4098095093093094/Take-One-Above-the-Line-1-by-Karen-Kingsbury.pdf
    • http://loaminoo.linkpc.net/4091095090094/Take-Two-Above-the

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