Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcd719f1536c1ad5…

MALICIOUS

PDF

13.8 KB Created: 2019-04-30 18:07:27 +01:00 Authoring application: mPDF 5.7
MD5: 98a5ab876e662005ddddb8551b7bbbf7 SHA-1: 26b54d5e7c2a20eed948c5b1ef104dfb4d6a8e0a SHA-256: fcd719f1536c1ad58ac3d70d3f94c2c932daddc9dae8be6eb332a68d35ef4b76
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious with high confidence. The document body consists of these URLs, suggesting the primary purpose is to redirect users to external content, potentially for SEO manipulation or to distribute further malware. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

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/1091098095092098098/Robotz-by-Stephen-Munzer.pdf
    • http://loaminoo.linkpc.net/1091098095092093091/Robotz-An-Encyclopedia-Of-Robots-In-Fact-And-Fiction-by-Stephen-Munzer.pdf
    • http://loaminoo.linkpc.net/1091098095092090091/Robotz-an-Encyclopedia-of-Robots-in-Fact-and-Fiction-by-Stephen-Munzer.pdf
    • http://loaminoo.linkpc.net/1091098095093099091/New-Essays-in-the-Legal-and-Political-Theory-of-Property-by-Stephen-R-Munzer.pdf
    • http://loaminoo.linkpc.net/2099090090097096/Making-History-by-Stephen-Fry.pdf
    • http://loaminoo.linkpc.net/7096098091091093/Van-Helsing-The-Making-Of-The-Legend-by-Stephen-Sommers.pdf
    • http://loaminoo.linkpc.net/6093099090094098/Macross-II-Spacecraft-and-Deck-Plans-Volume-3-by-Martin-Ouellette.pdf
    • http://loaminoo.linkpc.net/1091098095092090090/Graz-by-Edith-Munzer.pdf
    • http://loaminoo.linkpc.net/1091098095090098090/Robotz-by-Steve-Munzer.pdf
    • http://loaminoo.linkpc.net/1091098095091099097/Die-F-rstenpredigt-by-Thomas-M-nzer.pdf
    • http://loaminoo.linkpc.net/1091098095093090090/Schriften-Und-Briefe-by-Thomas-M-nzer.pdf
    • http://loaminoo.linkpc.net/2098094090097098/Junk-by-Shushushu-Sakurai.pdf
    • http://loaminoo.linkpc.net/3090092090091091/Junk-Randy-and-Max-2-by-G-R-Richards.pdf
    • http://loaminoo.linkpc.net/3094090099090096/Just-a-Little-Junk-by-Stylo-Fantome.pdf
    • http://loaminoo.linkpc.net/4093093096094/Junk-by-Melvin-Burgess.pdf
    • http://loaminoo.linkpc.net/9091097095095096/Solange-es-Schmetterlinge-gibt-by-Hanni-M-nzer.pdf
    • http://loaminoo.linkpc.net/4095094094099098/Drilling-on-Troubled-Land-by-Nick-Munzer.pdf
    • http://loaminoo.linkpc.net/6094097099096098/Junk-Voyage-by-Andrew-J-Chamberlain.pdf
    • http://loaminoo.linkpc.net/1091097095090099092/I-Am-Somebody-Because-God-Don-t-Make-No-Junk-by-Anna-Leider.pdf
    • http://loaminoo.linkpc.net/4091093099096097/Junk-Miles-Brenna-Blixen-2-by-Liz-Reinhardt.pdf
    • http://loaminoo.linkpc.net/3094090099090096/Just-a-Little-Ju

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