Malicious PDF — malware analysis report

Static analysis result for SHA-256 86d0695951e36d9c…

MALICIOUS

PDF

15.4 KB Created: 2019-05-02 10:34:01 +01:00 Authoring application: mPDF 5.7
MD5: f686ab03efc2515bcb741e0318861371 SHA-1: 302090fe165b9d0008a90021dac0cdffb27bdf75 SHA-256: 86d0695951e36d9ce49c0cc2aaaf354cd17eb0300122fc3934b7a0d04cc427b1
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified as a link farm, which is a common SEO poisoning tactic to distribute malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the presence of numerous links suggests an attempt to redirect the user to potentially harmful external sites, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

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/4091090095090095/Lost-Girls-The-Cellar-2-by-Bob-Mayer.pdf
    • http://loaminoo.linkpc.net/4091099091098094/--LOST-GIRLS-1-Shingeki-no-Kyojin-Lost-Girls-1-Attack-on-Titan-Lost-Girls-Manga-1-by-Hajime-Isayama.pdf
    • http://loaminoo.linkpc.net/1092091092098097/Lost-Girls-Lost-Girls-1-3-by-Alan-Moore.pdf
    • http://loaminoo.linkpc.net/3099094093092/The-Cellar-The-Cellar-1-by-Natasha-Preston.pdf
    • http://loaminoo.linkpc.net/2099094098090093/The-Lost-Girls-of-Camp-Forevermore-by-Kim-Fu.pdf
    • http://loaminoo.linkpc.net/3090094097094094/Giving-It-Up-The-Lost-Girls-1-by-Amber-Lin.pdf
    • http://loaminoo.linkpc.net/2091099091098097/A-Psalm-for-Lost-Girls-by-Katie-Bayerl.pdf
    • http://loaminoo.linkpc.net/2090093090/Lost-Girls-D-I-Kim-Stone-3-by-Angela-Marsons.pdf
    • http://loaminoo.linkpc.net/4093092099095096/Little-Girls-Lost-Carson-Ryder-6-by-J-A-Kerley.pdf
    • http://loaminoo.linkpc.net/8099099099098/How-the-Garcia-Girls-Lost-Their-Accents-by-Julia-Alvarez.pdf
    • http://loaminoo.linkpc.net/9094090098097099/Lost-Girls-Sherry-Moore-3-by-George-D-Shuman.pdf
    • http://loaminoo.linkpc.net/1092097094091092/The-Butterfly-Clues-Lost-Girls-1-by-Kate-Ellison.pdf
    • http://loaminoo.linkpc.net/1098091093090091/Lost-Girls-Drake-Chronicles-0-5-by-Alyxandra-Harvey.pdf
    • http://loaminoo.linkpc.net/1094091098096091/Lost-Girls-and-Love-Hotels-by-Catherine-Hanrahan.pdf
    • http://loaminoo.linkpc.net/4096097095097/Lost-in-Las-Vegas-Carter-House-Girls-5-by-Melody-Carlson.pdf
    • http://loaminoo.linkpc.net/3094096098090093/The-Lost-Girls-Three-Friends-Four-Continents-One-Unconventional-Detour-Around-the-World-by-Jennifer-Baggett.pdf
    • http://loaminoo.linkpc.net/2098098098095091/The-Cellar-by-Lucian-Carter.pdf
    • http://loaminoo.linkpc.net/9095092092090091/The-Cellar-s-Secret-by-Baren-Nix.pdf
    • http://loaminoo.linkpc.net/1096095096094092/The-Cellar-by-Richard-Laymon.pdf
    • http://loaminoo.linkpc.net/3093095094093098/Cellar-Girl-by-Josefina-Rivera.pdf

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