Malicious PDF — malware analysis report

Static analysis result for SHA-256 e04e5190a1d9c7ce…

MALICIOUS

PDF

20.7 KB Created: 2019-05-02 12:58:09 +01:00 Authoring application: mPDF 5.7
MD5: 346c4774c886b9fc7371419d240a2501 SHA-1: 5276ede78395757b561a27e6998daf2777d2d13d SHA-256: e04e5190a1d9c7ce1a22d60dd8ca55dd4bc5ded1800e8b7f58403b57b0c8d05e
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, forming a link farm. The primary heuristic indicates this is a critical finding, suggesting a malicious intent to redirect users to potentially harmful content. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, and the document body was heavily obfuscated, but the link farm structure is a clear indicator of a malicious distribution tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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/5096090093095093/Amer-Peo-Creatg-V2-Vango-amp-carng-amp-e-Rsvlt-amp-mhk-by-Prentice-Hall-Pearson.pdf
    • http://loaminoo.linkpc.net/1091098091093099090/Delfines-by-Prentice-Hall-Pearson.pdf
    • http://loaminoo.linkpc.net/1090093091099092099/Treffpunkt-Deutsch-Grundstufe-amp-1key-CC-Pkg-by-Prentice-Hall-Pearson.pdf
    • http://loaminoo.linkpc.net/1090093091099094092/Treffpunkt-Deutsch-Gru-amp-actv-amp-dvd-amp-gramm-amp-dict-by-Prentice-Hall-Pearson.pdf
    • http://loaminoo.linkpc.net/6093091095091093/Kozier-amp-Erbs-Fundmt-Nursing-amp-clin-amp-skill-Pkg-by-Prentice-Hall-Pearson.pdf
    • http://loaminoo.linkpc.net/7097099092093091/Laplace-Transforms-and-an-Introduction-to-Distributions-by-Prentice-Hall.pdf
    • http://loaminoo.linkpc.net/8095091096098091/Prentice-Hall-Grammar-and-Composition-4-by-Gary-Forlini.pdf
    • http://loaminoo.linkpc.net/7091091096098090/CENTER-FOR-MATHEMATICS-EDUCATION-ALGEBRA-1-TEACHER-EXPRES-CD-ROM-by-Prentice-Hall.pdf
    • http://loaminoo.linkpc.net/1090092094098094096/DNA-Complex-and-Adaptive-Behaviour-Prentice-Hall-series-in-experimental-psychology-by-John-Gaito.pdf
    • http://loaminoo.linkpc.net/1091091093094092095/Integrated-Digital-Electronics-Prentice-Hall-series-in-electronic-technology-by-Walter-A-Treibel.pdf
    • http://loaminoo.linkpc.net/9096099093098096/An-introduction-to-animal-behavior-Ethology-s-first-century-Prentice-Hall-biological-science-series-by-Peter-H-Klopfer.pdf
    • http://loaminoo.linkpc.net/1091093097096094090/Algorithms-Plus-Data-Structures-Equals-Programs-Prentice-Hall-series-in-automatic-computation-by-Niklaus-Wirth.pdf
    • http://loaminoo.linkpc.net/5096090093091098/Vango-Notes-for-Accounting-by-Charles-T-Horngren.pdf
    • http://loaminoo.linkpc.net/1096096091098094/God-Is-In-The-Rain-by-Mohamed-Amer.pdf
    • http://loaminoo.linkpc.net/5092099093097097/Plus-amer-que-la-mort-by-Fred-Kassak.pdf
    • http://loaminoo.linkpc.net/8099094096091/Gad-s-Hall-The-Haunting-of-Gad-s-Hall-Gad-s-Hall-1-2-by-Norah-Lofts.pdf
    • http://loaminoo.linkpc.net/5096090093092093/Improved-sampling-and-analytical-procedure-for-nitrogen-tetroxide-and-mixed-oxides-of-nitrogen-by-S-P-Vango.pdf
    • http://loaminoo.linkpc.net/1091098092095094/The-Chocolate-Money-by-Ashley-Prentice-Norton.pdf
    • http://loaminoo.linkpc.net/1090093098092091091/Heauen-Vpon-Earth-Or-of-True-Peace-and-Tranquillity-of-Minde-by-IOS-Hall-1609-by-Joseph-Hall.pdf
    • http://loaminoo.linkpc.net/1091090096099099093/Foerster-Amer-P-amp-P-Vol-1-amp-2-Combo-5ed-by-Michael-H-Foerster.pdf
    • http://loaminoo.linkpc.net/109

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