Malicious PDF — malware analysis report

Static analysis result for SHA-256 2833146c95faa836…

MALICIOUS

PDF

32.0 KB Created: 2019-05-01 05:15:31 +01:00 Authoring application: mPDF 5.7
MD5: 07da25fe95ae9220ae2de0efec427259 SHA-1: 8f2a24a63b5d48a56143574468fd3540231b67dc SHA-256: 2833146c95faa83694351bbe0c5830fb74110f80acce0914e9fd36504574f5e4
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for containing a large number of external links, forming a link farm. While the document body is heavily corrupted and unreadable, the presence of 32 external links, many with numeric slugs, strongly suggests a SEO manipulation or redirection tactic. The ML classifier also indicated a high probability of maliciousness. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9895

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/6099093093094095/Qcd-Perspectives-On-Hot-And-Dense-Matter-Nato-Science-Series-Ii-Mathematics-Physics-And-Chemistry-by-Jean-Paul-Blaizot.pdf
    • http://loaminoo.linkpc.net/6099093093094096/Nuclear-Matter-in-Different-Phases-and-Transitions-Proceedings-of-the-Workshop-Nuclear-Matter-in-Different-Phases-and-Transitions-March-31-April-10-1998-Les-Houches-France-by-Jean-Paul-Blaizot.pdf
    • http://loaminoo.linkpc.net/6091096099095092/Dark-Matter-in-Astrophysics-and-Particle-Physics-1998-Proceedings-of-the-Second-International-Conference-on-Dark-Matter-in-Astro-and-Particle-Physics-Held-in-Heidelberg-Germany-20-25-July-1998-by-Hans-Volker-Klapdor-Kleingrothaus.pdf
    • http://loaminoo.linkpc.net/8092092098093091/Recent-Trends-in-Theory-of-Physical-Phenomena-in-High-Magnetic-Fields-Nato-Science-Series-II-closed-by-Israel-D-Vagner.pdf
    • http://loaminoo.linkpc.net/9098094093099096/Li-S-Batteries-The-Challenges-Chemistry-Materials-and-Future-Perspectives-The-Challenges-Chemistry-Materials-and-Future-Perspectives-by-Rezan-Demir-Cakan.pdf
    • http://loaminoo.linkpc.net/7094094091098092/The-Principles-of-Quantum-Mechanics-International-Series-of-Monographs-on-Physics-by-Paul-A-M-Dirac.pdf
    • http://loaminoo.linkpc.net/8093097090096099/Perturbation-Techniques-in-Mathematics-Engineering-and-Physics-by-Richard-E-Bellman.pdf
    • http://loaminoo.linkpc.net/6099096090093091/Polymers-Chemistry-and-Physics-of-Modern-Materials-2nd-Edition-by-J-M-G-Cowie.pdf
    • http://loaminoo.linkpc.net/1091093099096096097/The-Hamilton-Jacobi-Theory-In-The-Calculus-Of-Variations-Its-Role-In-Mathematics-And-Physics-by-Hanno-Rund.pdf
    • http://loaminoo.linkpc.net/1091098097096096093/Guide-to-Essential-Math-A-Review-for-Physics-Chemistry-and-Engineering-Students-by-Sy-M-Blinder.pdf
    • http://loaminoo.linkpc.net/2099092096094091/Five-Golden-Rules-Great-Theories-Of-20th-Century-Mathematics-And-Why-They-Matter-by-John-L-Casti.pdf
    • http://loaminoo.linkpc.net/8090098093097096/Ultrahigh-Pressure-Mineralogy-Physics-and-Chemistry-of-the-Earth-s-Deep-Interior-by-Russell-J-Hemley.pdf
    • http://loaminoo.linkpc.net/8099090097097098/CHEMISTRY-amp-CHEM-REACTIVITY-W-CD-GNL-CHEM-NOW-06-BUNDLE-SP-Chemistry-amp-Chemical-Reactivity-by-Paul-M-Treichel-Gabriela-C-Weaver-John-C-Kotz.pdf
    • http://loaminoo.linkpc.net/7091096095091099/Proceedings-of-the-Xxv-Zakopane-School-on-Physics-Condensed-Matter-Studies-by-Nuclear-Methods-by-Jan-Stanek.pdf
    • http://loaminoo.linkpc.net/1090093091091095097/Divergent-Series-American-Mathematics-Society-non-series-title-by-G-H-Hardy.pdf
    • http://loaminoo.linkpc.net/7092095097097093/Solutions-manual-to-accompany-General-chemistry-third-edition-and-General-chemistry-with-qualitative-analysis-third-edition-by-Whitten-Gailey-Davis-Saunders-golden-sunburst-series-by-Yi-Noo-Tang.pdf
    • http://loaminoo.linkpc.net/5093091092092093/Mathematics-for-Computer-Science-by-Eric-Lehman.pdf
    • http://loaminoo.linkpc.net/1091099097096091093/Automotive-Science-and-Mathematics-by-Allan-W-M-Bonnick.pdf
    • http://loaminoo.linkpc.net/1091090090093098097/Jean-Paul-S-mtliche-Romane-in-einem-Band-Die-unsichtbare-Loge-Flegeljahre-Hesperus-oder-45-Hundposttage-Siebenk-s-Titan-Leben-Fibels-Der-Komet-Leben-des-Quintus-Fixlein-by-Jean-Paul.pdf
    • http://loaminoo.linkpc.net/7096091094099090/Chemistry-The-Central-Science-by-Theodore-L-Brown.pdf
    • http://loaminoo.linkpc.net/6091096099095092/Dark-Matter-in-Astrophysic

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