Malicious PDF — malware analysis report

Static analysis result for SHA-256 2421e61199e5ac2c…

MALICIOUS

PDF

32.8 KB Created: 2019-05-02 17:07:13 +01:00 Authoring application: mPDF 5.7
MD5: cae17b7b4536d4c5dcc7cf2e573eba7c SHA-1: d8647bcdff9cdd07b815585e1393db47270602b6 SHA-256: 2421e61199e5ac2c7039e689996c3c3769c951ce7069c160fa25a3f09cc12c6b
90 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for containing a mass external link farm, with 32 links identified. An ML classifier also strongly indicated maliciousness. While the document body is unreadable, the presence of numerous links, many pointing to PDFs with academic-sounding titles, suggests a lure or redirection mechanism. The primary attack pattern involves leveraging these links, likely to distribute further malware or engage in SEO abuse.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9883

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/7091092093092098/State-and-Local-Government-Reforms-in-France-and-Germany-Divergence-and-Convergence-by-Vincent-Hoffmann-Martinot.pdf
    • http://loaminoo.linkpc.net/7091092093097092/Metropolitanization-and-Political-Change-by-Vincent-Hoffmann-Martinot.pdf
    • http://loaminoo.linkpc.net/1091090096098099091/Devolution-and-Empowerment-The-Local-Government-Code-of-1991-and-Local-Autonomy-in-the-Philippines-by-Proserpina-Domingo-Tapales.pdf
    • http://loaminoo.linkpc.net/8096092092090090/Local-Government-and-Ploitics-by-Flinn.pdf
    • http://loaminoo.linkpc.net/9090098091090090/The-Practice-of-Local-Government-Planning-by-Charles-J-Hoch.pdf
    • http://loaminoo.linkpc.net/3093094093090097/Not-So-Innocently-Abroad-Official-State-Department-Tour-or-Sinister-Government-Plot-to-Disappear-Me-by-Ken-Richters.pdf
    • http://loaminoo.linkpc.net/6093094099094091/Great-Short-Stories-of-the-War-England-France-Germany-America-by-Edmund-Blunden.pdf
    • http://loaminoo.linkpc.net/5091093093095098/Sexuality-State-and-Civil-Society-in-Germany-1700-1815-by-Isabel-V-Hull.pdf
    • http://loaminoo.linkpc.net/6095094097099092/Fatherlands-State-Building-and-Nationhood-in-Nineteenth-Century-Germany-by-Abigail-Green.pdf
    • http://loaminoo.linkpc.net/5092090090095097/A-State-of-Peace-in-Europe-West-Germany-and-the-Csce-1966-1975-by-Petri-Hakkarainen.pdf
    • http://loaminoo.linkpc.net/3099095096092095/The-Birth-of-the-West-Rome-Germany-France-and-the-Creation-of-Europe-in-the-Tenth-Century-by-Paul-Collins.pdf
    • http://loaminoo.linkpc.net/8094091095094099/For-a-Greater-District-of-Columbia-Speeches-of-Hon-Edward-de-V-Morrell-of-Pennsylvania-a-Member-of-the-Committee-on-the-District-of-Columbia-on-Abuses-and-Needed-Reforms-in-the-Government-of-the-District-of-Columbia-in-Reference-to-Street-Extensio-by-Edward-De-Veaux-Morrell.pdf
    • http://loaminoo.linkpc.net/1091093095094093097/Transducers-01-Eurosensors-XV-The-11th-International-Conference-on-Solid-State-Sensors-and-Actuators-June-10-14-2001-Munich-Germany-by-Ernst-Obermeier.pdf
    • http://loaminoo.linkpc.net/5090097099097093/Making-Money-in-Sixteenth-Century-France-Currency-Culture-and-the-State-by-Jotham-Parsons.pdf
    • http://loaminoo.linkpc.net/5094094091095090/France-Germany-from-the-Peace-of-Frankfort-in-1871-to-the-Peace-of-Algesiras-in-1906-by-Victor-Meynier.pdf
    • http://loaminoo.linkpc.net/5097098094094094/Top-Rank-Local-Guide-to-the-Top-of-Google-Local-by-Steve-Marineau.pdf
    • http://loaminoo.linkpc.net/1091093098092099092/Governance-Industry-and-Labour-Markets-in-Britain-and-France-The-Modernizing-State-Routledge-Studies-in-the-European-Economy-by-Robert-Salais.pdf
    • http://loaminoo.linkpc.net/1090098097090096090/The-Shared-Burden-United-States-French-Coalition-Operations-in-the-European-Theater-of-World-War-II---Southern-France-to-the-Defeat-of-Germany-NORDWIND-Offensive-Churchill-Eisenhower-de-Gaulle-by-Progressive-Management.pdf
    • http://loaminoo.linkpc.net/8092091096092097/Travels-Through-the-Low-Countries-Germany-Italy-and-France-with-Curious-Observations-Natural-Topographical-Moral-Physiological-amp-C-Also-a-Catalogue-of-Plants-Found-Spontaneously-Growing-in-Those-Parts-and-Their-Virtues-Volume-V-2-by-Ray-John-1627-1705.pdf
    • http://loaminoo.linkpc.net/1090098092094093098/Second-Treatise-of-Government-Concerning-The-True-Original-Extent-and-End-of-Civil-Government-by-John-Locke.pdf
    • http://loaminoo.linkpc.net/3093094093090097/Not-So-Innocently-Abroad-Official-State-Department-Tour-or-Sinister-Government-Plot

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