Malicious PDF — malware analysis report

Static analysis result for SHA-256 209bafd0db6a13bc…

MALICIOUS

PDF

20.6 KB Created: 2019-04-30 05:49:55 +01:00 Authoring application: mPDF 5.7
MD5: 34fea7ef5a2fdca04264fc2f1aa238df SHA-1: 72fc1f16b55fb04b1e0b03983641409d1f376a20 SHA-256: 209bafd0db6a13bc523d52480d39a2b916e32dfe99a4f8fd083b6c0d9673ad90
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to distribute further malicious content. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the presence of a link farm. No scripts were extracted, and the document body primarily consists of these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9924

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/9098095092095097/Tess-of-the-D-urbervilles-by-Thomas-Hardy-Illustrated-Delphi-Parts-Edition-Thomas-Hardy-by-Thomas-Hardy.pdf
    • http://loaminoo.linkpc.net/7091093093093099/Tess-of-the-d-Urbervilles-By-Thomas-Hardy-Illustrated-amp-Unabridged-Free-Bonus-Audiobook-by-Thomas-Hardy.pdf
    • http://loaminoo.linkpc.net/6092096095096099/UNDER-THE-GREENWOOD-TREE-by-Thomas-Hardy-author-of-Tess-of-the-d-Urbervilles-Far-From-the-Madding-Crowd-Jude-the-Obscure-The-Mayor-of-Casterbridge-The-Well-Beloved-Annotated-by-Thomas-Hardy.pdf
    • http://loaminoo.linkpc.net/7090099097094/Tess-of-the-d-Urbervilles-by-Thomas-Hardy.pdf
    • http://loaminoo.linkpc.net/1090094097095091097/Tess-of-the-d-Urbervilles-by-Thomas-Hardy.pdf
    • http://loaminoo.linkpc.net/8099093094095/Tess-of-the-D-Urbervilles-by-Thomas-Hardy.pdf
    • http://loaminoo.linkpc.net/6091090090090098/Tess-of-the-d-Urbervilles-by-Thomas-Hardy.pdf
    • http://loaminoo.linkpc.net/5093091099092093/Tess-of-the-D-Urbervilles-by-Thomas-Hardy.pdf
    • http://loaminoo.linkpc.net/3097099095098094/Tess-Of-The-D-urbervilles-by-Thomas-Hardy.pdf
    • http://loaminoo.linkpc.net/7097097093090/Tess-of-the-d-Urbervilles-by-Thomas-Hardy.pdf
    • http://loaminoo.linkpc.net/8098093099096092/Tess-of-the-D-Urbervilles-by-Thomas-Hardy.pdf
    • http://loaminoo.linkpc.net/2098094099090093/Tess-of-the-d-Urbervilles-by-Thomas-Hardy.pdf
    • http://loaminoo.linkpc.net/8098099092097094/Tess-of-the-d-Urbervilles-by-Thomas-Hardy.pdf
    • http://loaminoo.linkpc.net/9099098094099094/Tess-of-the-D-Urbervilles-by-Thomas-Hardy.pdf
    • http://loaminoo.linkpc.net/7095091091094094/Tess-of-the-d-Urbervilles-by-Thomas-Hardy.pdf
    • http://loaminoo.linkpc.net/9098094091098098/Tess-of-the-d-Urbervilles-by-Thomas-Hardy.pdf
    • http://loaminoo.linkpc.net/6098092095092092/Tess-of-the-d-Urbervilles---New-Classic-Edition-Easton-Press-ANNOTATED-by-Thomas-Hardy.pdf
    • http://loaminoo.linkpc.net/1091094096095093094/Tess-of-the-D-Urbervilles-Illustrated-with-a-range-of-original-illustrations-and-an-easy-to-use-chapter-index-by-Thomas-Hardy.pdf
    • http://loaminoo.linkpc.net/6090099096099096/Tess-of-the-D-Urbervilles-Includes-MLA-Style-Citations-for-Scholarly-Secondary-Sources-Peer-Reviewed-Journal-Articles-and-Critical-Essays-by-Thomas-Hardy.pdf
    • http://loaminoo.linkpc.net/9099098091092097/Tess-of-the-D-Ubervilles-by-Thomas-Hardy.pdf
    • http://loaminoo.linkpc.net/

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