Malicious PDF — malware analysis report

Static analysis result for SHA-256 28332e2609379b8c…

MALICIOUS

PDF

15.9 KB Created: 2019-05-01 17:16:17 +01:00 Authoring application: mPDF 5.7
MD5: 049f48877d3968d8a1871becdb6cbcd9 SHA-1: be6a5b36cd63f6ee80e93128bb961c81d026116e SHA-256: 28332e2609379b8cba627d8514deee9241eb67ee98df515df0429d25fd45e876
90 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier strongly indicated maliciousness. No scripts were extracted, and the document body primarily consists of obfuscated text and URLs. The primary attack pattern involves directing users to a link farm of potentially malicious or unwanted content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9800

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://xiixmcuin.linkpc.net/8203206203201207/Daughters-of-Sengoku-Warrior-Hojo-Ujiyasu-Kunohe-castle-where-is-the-place-of-the-end-of-the-medieval-Japan-Minor-shiseki-Minor-shiseki-meguri-project-by-Tsukuru-Tamaki.pdf
    • http://xiixmcuin.linkpc.net/5208201204205208/The-Devil-on-the-Somme-by-Stuart-Minor.pdf
    • http://xiixmcuin.linkpc.net/4208205207207202/Minor-Snobs-by-Daniel-Amory.pdf
    • http://xiixmcuin.linkpc.net/2208205209202206/The-Major-And-The-Minor-by-Pepper-Espinoza.pdf
    • http://xiixmcuin.linkpc.net/4209208201204208/When-Religion-Is-an-Addiction-by-Robert-N-Minor.pdf
    • http://xiixmcuin.linkpc.net/1201207208206207/A-Minor-Apocalypse-by-Tadeusz-Konwicki.pdf
    • http://xiixmcuin.linkpc.net/5207208201202205/Miserere-in-G-Minor-by-John-D-Nugent.pdf
    • http://xiixmcuin.linkpc.net/4206209204207208/Undermajordomo-Minor-by-Patrick-deWitt.pdf
    • http://xiixmcuin.linkpc.net/2207204204205206/A-Minor-Indiscretion-by-Carole-Matthews.pdf
    • http://xiixmcuin.linkpc.net/2201208204204209/Minor-Gods-Summoners-1-by-A-M-Yates.pdf
    • http://xiixmcuin.linkpc.net/2203201207208201/Minor-Discord-by-Helen-Laycock.pdf
    • http://xiixmcuin.linkpc.net/3206207208201209/Comedy-in-a-Minor-Key-by-Hans-Keilson.pdf
    • http://xiixmcuin.linkpc.net/2201200202209202/Minor-Adjustments-by-Rachael-Renee-Anderson.pdf
    • http://xiixmcuin.linkpc.net/5204201207206204/Kafka-Toward-a-Minor-Literature-by-Gilles-Deleuze.pdf
    • http://xiixmcuin.linkpc.net/1205204206200205/A-Very-Minor-Prophet-A-Novel-by-James-Bernard-Frost.pdf
    • http://xiixmcuin.linkpc.net/3201205201204204/The-Windrider-Saga-Books-I-amp-II-by-Rebecca-P-Minor.pdf
    • http://xiixmcuin.linkpc.net/7203201205208209/Baroque-amp-Rococo-Art-amp-Culture-by-Vernon-Hyde-Minor.pdf
    • http://xiixmcuin.linkpc.net/3203204209204201/A-Minor-Magic-Born-of-Fire-1-by-Justin-R-Macumber.pdf
    • http://xiixmcuin.linkpc.net/8203201200208206/Minor-Conflict-Pico-Bogue-5-by-Dominique-Roques.pdf
    • http://xiixmcuin.linkpc.net/3204207205207206/An-Asian-Minor-The-True-Story-of-Ganymede-by-Felice-Picano.pdf
    • http://xiixmcuin.linkpc.net/2203201207208201

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