Malicious PDF — malware analysis report

Static analysis result for SHA-256 b25881a67b1926e5…

MALICIOUS

PDF

24.4 KB Created: 2019-04-30 05:59:33 +01:00 Authoring application: mPDF 5.7
MD5: f4c531c1631873b5313a817d6cd39f73 SHA-1: 4f6243cac3ae4a25b154df6d170da4f3836b01f2 SHA-256: b25881a67b1926e5a016c1578dec9f3ad8b25753f11ea6e223fe4a053f6a6d58
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of external links, many pointing to PDFs hosted on the domain 'loaminoo.linkpc.net'. While the linked PDFs themselves appear benign, the sheer volume and the suspicious nature of the hosting domain suggest a link farm intended to obscure malicious activity or distribute further content. The ML classifier also strongly indicated maliciousness.

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/7092093096095096/Metal-Clay-Jewelry-Projects-Techniques-Inspirations-by-Louise-Duhamel.pdf
    • http://loaminoo.linkpc.net/6096097096092097/The-Art-of-Polymer-Clay-Millefiori-Techniques-Projects-and-Inspiration-for-Creative-Canework-by-Donna-Kato.pdf
    • http://loaminoo.linkpc.net/1090099099094098093/The-New-Encyclopedia-of-Jewelry-Making-Techniques-A-Comprehensive-Visual-Guide-to-Traditional-and-Contemporary-Techniques-by-Jinks-McGrath.pdf
    • http://loaminoo.linkpc.net/5095090095090090/Quilting-Masterclass-Inspirations-and-Techniques-from-the-Experts-by-Katherine-Guerrier.pdf
    • http://loaminoo.linkpc.net/1091097092095099099/Glass-Bead-Jewelry-Projects-by-Nelli-Rees.pdf
    • http://loaminoo.linkpc.net/1090099099094094093/The-Encyclopedia-of-Jewelry-Making-Techniques-by-Jinks-McGrath.pdf
    • http://loaminoo.linkpc.net/9093092090098092/Crocheted-Wire-Jewelry-Innovative-Designs-Projects-by-Leading-Artists-by-Arline-Fisch.pdf
    • http://loaminoo.linkpc.net/1098090090099/Working-with-Precious-Metal-Clay-by-Tim-McCreight.pdf
    • http://loaminoo.linkpc.net/1090099099094098091/Metalsmithing-for-Jewelry-Makers-Traditional-and-Contemporary-Techniques-for-Inspirational-Results-by-Jinks-McGrath.pdf
    • http://loaminoo.linkpc.net/8096094098090098/Icelandic-Handknits-25-Heirloom-Techniques-and-Projects-by-Helene-Magnusson.pdf
    • http://loaminoo.linkpc.net/9098095095094094/Flower-Drying-With-A-Microwave-Techniques-and-Projects-by-Titia-Joosten.pdf
    • http://loaminoo.linkpc.net/1091098092090091095/Scroll-Saw-Segmentation-Patterns-Projects-Techniques-by-Patrick-Spielman.pdf
    • http://loaminoo.linkpc.net/7092093092097092/Sheet-Metal-Fabrication-Techniques-and-Tips-for-Beginners-and-Pros-by-Eddie-Paul.pdf
    • http://loaminoo.linkpc.net/2097097092096090/The-Magic-of-Shetland-Lace-Knitting-Stitches-Techniques-and-Projects-for-Lighter-than-Air-Shawls-amp-More-by-Elizabeth-Lovick.pdf
    • http://loaminoo.linkpc.net/1091097092092090096/Warman-s-Jewelry-Fine-amp-Costume-Jewelry-Identification-amp-Price-Guide-by-Kathy-Flood.pdf
    • http://loaminoo.linkpc.net/8096096099099092/Crochet-for-Kids-Basic-Techniques-amp-Great-Projects-That-Kids-Can-Make-Themselves-by-Franziska-Heidenreich.pdf
    • http://loaminoo.linkpc.net/6099099094098090/Creative-Marker-Art-and-Beyond-Inspiring-tips-techniques-and-projects-for-creating-vibrant-artwork-in-marker-by-Lee-May-Foster-Wilson.pdf
    • http://loaminoo.linkpc.net/7093092093099092/The-Knitter-s-Guide-to-Hand-Dyed-and-Variegated-Yarn-Techniques-and-Projects-for-Handpainted-and-Multicolored-Yarn-by-Lorna-Miser.pdf
    • http://loaminoo.linkpc.net/8094096091094099/Precious-Metal-Decibel-Presents-the-Stories-Behind-25-Extreme-Metal-Masterpieces-by-Albert-Mudrian.pdf
    • http://loaminoo.linkpc.net/4094091091098098/The-Big-Book-of-Hair-Metal-The-Illustrated-Oral-History-of-Heavy-Metal-s-Debauched-Decade-by-Martin-Popoff.pdf
    • http://loaminoo.linkpc.net/5095090095090090/Quilting-Masterclass-Inspiration

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