Malicious PDF — malware analysis report

Static analysis result for SHA-256 953d9ff5c4f3b397…

MALICIOUS

PDF

13.4 KB Created: 2019-04-30 04:06:53 +01:00 Authoring application: mPDF 5.7
MD5: b593602a7979be083cbb3223c9e15e7c SHA-1: 452457f45d44d97d96ddb13f7d7d9f5822d70c99 SHA-256: 953d9ff5c4f3b397ecfe8c3cfe2b0c66ea47fe3d7918b118b31e8b6e6ff166ee
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. While the document body is heavily obfuscated, the presence of numerous links suggests an attempt to direct users to potentially harmful content or for SEO manipulation purposes. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9102

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/4092092094099/Shade-s-Loss-by-Christina-Worrell.pdf
    • http://loaminoo.linkpc.net/6098098094090095/Release-Pleasures-of-the-Biker-Billionaire-Billionaire-Biker-series-Book-5-by-Kenzie-Haven.pdf
    • http://loaminoo.linkpc.net/6098098094090096/Writhe-Desperate-for-the-Biker-Billionaire-Billionaire-Biker-series-Book-4-by-Kenzie-Haven.pdf
    • http://loaminoo.linkpc.net/1097097096096092/Submit-Taken-by-the-Biker-Billionaire-Billionaire-Biker-series-Book-1-by-Kenzie-Haven.pdf
    • http://loaminoo.linkpc.net/3096094097090090/a-k-a-Genius-by-Marilee-Haynes.pdf
    • http://loaminoo.linkpc.net/3096095090099098/Genius-Under-Construction-by-Marilee-Haynes.pdf
    • http://loaminoo.linkpc.net/6096092095093095/How-to-Teach-So-Students-Remember-by-Marilee-Sprenger.pdf
    • http://loaminoo.linkpc.net/1098091095091097/Marilee-Sunfire-9-by-Mary-Francis-Shura.pdf
    • http://loaminoo.linkpc.net/9092098098098099/Willa-Cather-Queering-America-by-Marilee-Lindemann.pdf
    • http://loaminoo.linkpc.net/6096092095093098/Brain-Based-Teaching-in-the-Digital-Age-by-Marilee-Sprenger.pdf
    • http://loaminoo.linkpc.net/6096092095093096/Learning-and-Memory-The-Brain-in-Action-by-Marilee-Sprenger.pdf
    • http://loaminoo.linkpc.net/6098098092095099/Kenzie-by-A-J-Eversley.pdf
    • http://loaminoo.linkpc.net/6098098094097092/Fated-to-be-Mated-by-Kenzie-Cox.pdf
    • http://loaminoo.linkpc.net/6098098093096095/Girl-off-the-Grid-by-Kenzie-Hart.pdf
    • http://loaminoo.linkpc.net/3090091097092097/Arresting-my-Stepbrother-by-Kenzie-Haven.pdf
    • http://loaminoo.linkpc.net/6098098093093094/Darien-Wolves-of-the-Rising-Sun-6-by-Kenzie-Cox.pdf
    • http://loaminoo.linkpc.net/3096091091093098/Truths-Art-of-Eros-1-by-Kenzie-Macallan.pdf
    • http://loaminoo.linkpc.net/6098098093096091/The-Heir-Agreement-by-Kenzie-Leon.pdf
    • http://loaminoo.linkpc.net/3096091091094094/Edges-Art-of-Eros-2-by-Kenzie-Macallan.pdf
    • http://loaminoo.linkpc.net/6098098093099098/Kenzie-and-the-Dinosaurs-by-Douglas-A-Ziesemer.pdf
    • http://loaminoo.linkpc.net/6096092095093096/Learning-and-Memory-The-Bra

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