Malicious PDF — malware analysis report

Static analysis result for SHA-256 56e264ab6c6c66e1…

MALICIOUS

PDF

18.5 KB Created: 2019-05-02 05:34:00 +01:00 Authoring application: mPDF 5.7
MD5: bdf63770c6d6f328c05e4804accd9a30 SHA-1: fa7d071b8873bd0b85be4527ab03e32423cc0bdc SHA-256: 56e264ab6c6c66e10fb82585fb9c9c7079d30f9f21b47c79dae18478c0496b6e
90 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for containing a mass external PDF link farm, with 23 numeric slug SEO PDF links pointing to the 'loaminoo.linkpc.net' domain. While the extracted URLs themselves are marked as benign, the sheer volume and nature of the links suggest a malicious intent to drive traffic or potentially host further malicious content. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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/1090095091094099094/TotalVital-Sonderband-by-Wilfried-A-Hary.pdf
    • http://loaminoo.linkpc.net/4092092099092090/wagner-markus-german-englisch-dictionary-of-drives-drive-engineering---deutsch-englisch-Technisches-Woerterbuch-Antriebstechnik-by-Markus-Wagner.pdf
    • http://loaminoo.linkpc.net/1090093097095097093/Star-Wars-Sonderband-90---Lando-by-Charles-Soule.pdf
    • http://loaminoo.linkpc.net/1090095091095092097/Lustiges-Taschenbuch-Advent-02-Sonderband-by-Walt-Disney-Company.pdf
    • http://loaminoo.linkpc.net/9096093093091094/Lustiges-Taschenbuch-Frohe-Ostern-06-Sonderband-by-Walt-Disney-Company.pdf
    • http://loaminoo.linkpc.net/1090095091096095090/9-Weihnachten-in-Entenhausen-Lustiges-Taschenbuch-Sonderband-9-by-Walt-Disney-Company.pdf
    • http://loaminoo.linkpc.net/2098095094096099/The-Secret-Life-of-the-Love-Song-and-The-Flesh-Made-Word-Two-Lectures-by-Nick-Cave-by-Nick-Cave.pdf
    • http://loaminoo.linkpc.net/9097094098093096/Nick-and-Tesla-s-Special-Effects-Spectacular-A-Mystery-with-Animatronics-Alien-Makeup-Camera-Gear-and-Other-Movie-Magic-You-Can-Make-Yourself-Nick-and-Tesla-5-by-Bob-Pflugfelder.pdf
    • http://loaminoo.linkpc.net/4096099090093092/Nick-amp-Greg-The-Nick-amp-Greg-Books-Book-1-by-John-Roman-Baker.pdf
    • http://loaminoo.linkpc.net/1090090096098096092/The-Nick-Nolte-Handbook---Everything-You-Need-to-Know-about-Nick-Nolte-by-Skyler-Koch.pdf
    • http://loaminoo.linkpc.net/9094098090093099/Nick-Nuyens-in-het-nieuw-een-jaar-met-de-bom-van-Bevel-by-Nick-Nuyens.pdf
    • http://loaminoo.linkpc.net/5094093099095092/Nick-Newton-Is-Not-a-Genius-Nick-Newton-1-by-S-E-M-Ishida.pdf
    • http://loaminoo.linkpc.net/1090099090092096/Here-with-Me-Now-by-Rebecca-Markus.pdf
    • http://loaminoo.linkpc.net/9092092099091094/Lehrerzimmer-by-Markus-Orths.pdf
    • http://loaminoo.linkpc.net/4096098090093092/When-Dogs-Cry-by-Markus-Zusak.pdf
    • http://loaminoo.linkpc.net/1090097094092090099/Otl-Aicher-by-Markus-Rathgeb.pdf
    • http://loaminoo.linkpc.net/1090094095097098096/Rabenschw-rze-by-Markus-Kammer.pdf
    • http://loaminoo.linkpc.net/4092098092098095/Crime-at-Mayerling-by-Georg-Markus.pdf
    • http://loaminoo.linkpc.net/1090093094091090095/Rubens-and-His-Women-by-Markus-Kersting.pdf
    • http://loaminoo.linkpc.net/8097096096098096/Die-Gewerkschaften-Im-Atomkonflikt-by-Markus-Mohr.pdf