Malicious PDF — malware analysis report

Static analysis result for SHA-256 319ca5be1ed98c78…

MALICIOUS

PDF

32.8 KB Created: 2019-05-02 19:32:22 +01:00 Authoring application: mPDF 5.7
MD5: b28ac9ad51a547f1230f6564759c5450 SHA-1: a12b173373dfdcfb69e0bec7205d9667731e16fc SHA-256: 319ca5be1ed98c785aea53f6f0f3069d27f2df1040ec782a20cf13e72f3f4a5f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a significant number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. While the specific URLs are marked as benign, the sheer volume and the nature of the heuristic suggest a malicious intent, possibly for SEO manipulation or to distribute further malware. The ML classifier also strongly indicated maliciousness. No scripts were extracted, and the document body was unreadable, limiting further analysis.

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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