Malicious PDF — malware analysis report

Static analysis result for SHA-256 6970838b600f0696…

MALICIOUS

PDF

18.8 KB Created: 2019-04-30 02:41:16 +01:00 Authoring application: mPDF 5.7
MD5: d22913aeaccc2ef8182ac03ba5039d18 SHA-1: d69b47b55098a7537b51d9fec48dc83608af5b82 SHA-256: 6970838b600f0696bf22c893e7d15eaf9c628090ebe08e6dddfd71c3d95df63e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF 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 also flagged this document as malicious. No scripts were extracted, and the document body was heavily obfuscated, preventing a deeper analysis of its specific intent beyond link distribution.

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/4094095090090092/Paris-France-by-Gertrude-Stein.pdf
    • http://loaminoo.linkpc.net/4095097098096097/Tender-Buttons-by-Gertrude-Stein.pdf
    • http://loaminoo.linkpc.net/7094095095090099/Writings-1932-1946-by-Gertrude-Stein.pdf
    • http://loaminoo.linkpc.net/1095095099099/Charmed-Circle-Gertrude-Stein-and-Company-by-James-R-Mellow.pdf
    • http://loaminoo.linkpc.net/2094095098092096/Twilight-of-the-Belle-Epoque-The-Paris-of-Picasso-Stravinsky-Proust-Renault-Marie-Curie-Gertrude-Stein-and-Their-Friends-Through-the-Great-War-by-Mary-McAuliffe.pdf
    • http://loaminoo.linkpc.net/3098091099097090/The-Geographical-History-of-America-Or-the-Relation-of-Human-Nature-to-the-Human-Mind-by-Gertrude-Stein.pdf
    • http://loaminoo.linkpc.net/3095097094094090/Gertrude-is-Gertrude-is-Gertrude-is-Gertrude-by-Jonah-Winter.pdf
    • http://loaminoo.linkpc.net/2097094096095091/Stein-on-Writing-A-Master-Editor-of-Some-of-the-Most-Successful-Writers-of-Our-Century-Shares-His-Craft-Techniques-and-Strategies-by-Sol-Stein.pdf
    • http://loaminoo.linkpc.net/3091094097096091/Gertrude-and-Toby-Save-the-Gingerbread-Man-Gertrude-and-Toby-2-by-Shari-Tharp.pdf
    • http://loaminoo.linkpc.net/4091096098092093/Gertrude-and-Toby-Save-the-Gingerbread-Man-Gertrude-and-Toby-2-by-Shari-Tharp.pdf
    • http://loaminoo.linkpc.net/1090096094098096092/Knowledge-Encyclopedia-with-Prof-Hein-Stein-by-Hein-Stein.pdf
    • http://loaminoo.linkpc.net/5091098092092093/Rick-Stein-s-Complete-Seafood-A-Step-by-Step-Reference-by-Rick-Stein.pdf
    • http://loaminoo.linkpc.net/9092097098092099/Many-Lives-Many-Masters-The-True-Story-of-a-Prominent-Psychiatrist-His-Young-Patient-and-the-Past-Life-Therapy-That-Changed-Both-Their-Lives-by-Brian-L-Weiss.pdf
    • http://loaminoo.linkpc.net/4095099094098093/Memories-Like-Burrs-by-Gertrude-Halstead.pdf
    • http://loaminoo.linkpc.net/1090092093098090094/Johnny-Appleseed-by-Gertrude-Norman.pdf
    • http://loaminoo.linkpc.net/9097095096093094/The-Herzog-legacy-by-Gertrude-Schweitzer.pdf
    • http://loaminoo.linkpc.net/1094094091092/Gertrude-Kloppenberg-by-Ruth-Hooker.pdf
    • http://loaminoo.linkpc.net/2094090094091094/Gertrude-and-Claudius-by-John-Updike.pdf
    • http://loaminoo.linkpc.net/1091090096094098094/Stories-Of-The-Nibelungen-by-Gertrude-R-Schottenfels.pdf
    • http://loaminoo.linkpc.net/3091091093094090/Yertle-the-Turtle-and-Gertrude-McFuzz-by-Dr-Seuss.pdf

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