Malicious PDF — malware analysis report

Static analysis result for SHA-256 e877bd72b273de7a…

MALICIOUS

PDF

22.0 KB Created: 2019-05-01 05:23:31 +01:00 Authoring application: mPDF 5.7
MD5: f0e48068e01fade7a087a1b6a96d7a45 SHA-1: 8d2f1735eecd2663bfe93a58b6d4f7f9b9682f33 SHA-256: e877bd72b273de7af8a5dcbdb5b8a7792c3aaf29f68e40ba6c56fec2f14fc128
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF document contains a large number of embedded links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various external websites, suggesting a link farm or redirection scheme. While the document body is heavily obfuscated, the primary malicious activity appears to be directing users to these external resources. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9903

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://unieoooq.linkpc.net/84e74e54e34e24e7/Rathaus-Bremen-Opus-69-by-Christian-Richters.pdf
    • http://unieoooq.linkpc.net/84e74e54e34e14e7/Rathaus-Rathaus-in-Kanada-Rathaus-in-Litauen-Rathaus-in-Polen-Rathaus-in-Den-Vereinigten-Staaten-Rathaus-in-Der-Schweiz-by-Quelle-Wikipedia.pdf
    • http://unieoooq.linkpc.net/94e04e84e94e34e9/Justizgebaude-in-Deutschland-Justizgebaude-in-Dresden-Justizgebaude-in-Dusseldorf-Rathaus-Landgericht-Bremen-Oberlandesgericht-Dusseldorf-by-Quelle-Wikipedia.pdf
    • http://unieoooq.linkpc.net/84e74e54e34e94e2/Gotisches-Bauwerk-in-Nordrhein-Westfalen-Historisches-Rathaus-Munster-Schloss-Broich-Kurkolnische-Landesburg-Zulpich-Altes-Rathaus-by-Quelle-Wikipedia.pdf
    • http://unieoooq.linkpc.net/84e74e54e34e94e5/Neorenaissancebauwerk-in-Deutschland-Frankfurt-Hauptbahnhof-Mainz-Hauptbahnhof-Peterskirche-Hamburger-Rathaus-Rathaus-Harburg-by-Quelle-Wikipedia.pdf
    • http://unieoooq.linkpc.net/84e74e54e34e94e1/Regierungsgebaude-in-Der-Schweiz-Rathaus-in-Der-Schweiz-Bundeshaus-Rathaus-Aarau-Regierungsgebaude-Stadthaus-Zurich-Haus-Der-Kantone-by-Quelle-Wikipedia.pdf
    • http://unieoooq.linkpc.net/34e34e44e34e04e7/Not-So-Innocently-Abroad-Official-State-Department-Tour-or-Sinister-Government-Plot-to-Disappear-Me-by-Ken-Richters.pdf
    • http://unieoooq.linkpc.net/24e04e34e84e34e8/Opus-by-Satoshi-Kon.pdf
    • http://unieoooq.linkpc.net/44e64e14e84e14e4/Flying-in-a-Cage-by-Melody-J-Bremen.pdf
    • http://unieoooq.linkpc.net/84e74e54e44e64e5/Das-Rathaus-in-N-rnberg-by-Ernst-Mummenhoff.pdf
    • http://unieoooq.linkpc.net/74e04e54e44e7/The-Bremen-Town-Musicians-by-Ilse-Plume.pdf
    • http://unieoooq.linkpc.net/64e34e74e04e64e5/Po-sie-Opus-1-by-St-phane-Barbery.pdf
    • http://unieoooq.linkpc.net/74e04e94e04e64e0/Siren-s-Opus-by-Karysa-Faire.pdf
    • http://unieoooq.linkpc.net/14e04e74e14e44e84e6/Geschichte-Des-Judischen-Friedhofs-in-Bremen-by-Jeanette-Jakubowski.pdf
    • http://unieoooq.linkpc.net/24e04e94e34e14e0/Opus-25-Years-of-His-Sunday-Best-by-Berkeley-Breathed.pdf
    • http://unieoooq.linkpc.net/64e34e14e74e84e2/Opus-Dei-Pirates-and-Parasites-by-Hilarion-Henares.pdf
    • http://unieoooq.linkpc.net/84e74e54e34e34e1/Gestern-Rathaus-Heute-Cafe-by-Erika-Haindl.pdf
    • http://unieoooq.linkpc.net/54e14e24e04e94e5/The-Final-Opus-of-Leon-Solomon-by-Jerome-Badanes.pdf
    • http://unieoooq.linkpc.net/64e44e24e64e14e0/One-Man-s-Opus-A-Survival-and-Preparedness-Story-by-Boyd-Craven.pdf
    • http://unieoooq.linkpc.net/14e04e84e14e34e14e5/Handwerk-Und-Maschinenkraft-Die-Silbermanufaktur-Koch-amp-Bergfeld-in-Bremen-by-Bernhard-Heitmann.pdf
    • http://unieoooq.linkpc.net/84e74e54e34e94e2/Gotisches-Ba

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