Malicious PDF — malware analysis report

Static analysis result for SHA-256 37819a20713ba23c…

MALICIOUS

PDF

22.5 KB Created: 2019-05-05 14:19:31 +01:00 Authoring application: mPDF 5.7
MD5: 17c1b0fb11b37dadc0f91fb9ba7a9906 SHA-1: 5a0b28f2376ef4ddc8686daf8947faec5bc22d91 SHA-256: 37819a20713ba23c7ab16d1314686d34c4365685806f5efe745d82c555821f93
90 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded links to external PDF files, suggesting a link farm or a method to distribute further malicious content. The primary heuristic indicates a PDF_SEO_LINK_FARM, with 26 numeric slug links found. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/2098099098091094/Griffin-s-Daughter-Griffin-s-Daughter-Trilogy-1-by-Leslie-Ann-Moore.pdf
    • http://loaminoo.linkpc.net/7092095092099/Daughter-of-Aphrodite-Daughter-Trilogy-1-by-C-M-Owens.pdf
    • http://loaminoo.linkpc.net/9096091091094094/Daughter-Trilogy-Bundle-Daughter-Trilogy-1-3-by-C-M-Owens.pdf
    • http://loaminoo.linkpc.net/4094093094098/Official-Book-Club-Selection-A-Memoir-According-to-Kathy-Griffin-by-Kathy-Griffin.pdf
    • http://loaminoo.linkpc.net/3091098091095096/Griffin-amp-Sabine-An-Extraordinary-Correspondence-Griffin-amp-Sabine-1-by-Nick-Bantock.pdf
    • http://loaminoo.linkpc.net/1091090091096096/The-Unexpected-Enlightenment-of-Rachel-Griffin-Rachel-Griffin-1-by-L-Jagi-Lamplighter.pdf
    • http://loaminoo.linkpc.net/1091092092097092/The-Unexpected-Enlightenment-of-Rachel-Griffin-Rachel-Griffin-1-by-L-Jagi-Lamplighter.pdf
    • http://loaminoo.linkpc.net/5093090093099094/Decorating-With-Decoupage-Handmade-Gifts-And-Accessories-Using-Anna-Griffin-s-New-Decoupe-Papers-A-Step-By-Step-Guide-To-Creating-Over-42-Easy-To-Make-Projects-by-Anna-Griffin.pdf
    • http://loaminoo.linkpc.net/1095093092097098/Remnant-A-Caldwell-amp-Feximal-Whyborne-amp-Griffin-Mystery-The-Secret-Casebook-of-Simon-Feximal-3-Whyborne-amp-Griffin-3-5-by-K-J-Charles.pdf
    • http://loaminoo.linkpc.net/2091095093094096/Bending-Toward-the-Sun-A-Mother-and-Daughter-Memoir-by-Leslie-Gilbert-Lurie.pdf
    • http://loaminoo.linkpc.net/1099096099094/The-Bishop-s-Daughter-A-Memoir-by-Honor-Moore.pdf
    • http://loaminoo.linkpc.net/7094091091/Daughter-of-the-Siren-Queen-Daughter-of-the-Pirate-King-2-by-Tricia-Levenseller.pdf
    • http://loaminoo.linkpc.net/3095091090097091/The-President-s-Daughter-Daughter-Series-3-by-Eydie-Maggio.pdf
    • http://loaminoo.linkpc.net/2093091098099096/Shattered-Silence-The-Untold-Story-of-a-Serial-Killer-s-Daughter-by-Melissa-G-Moore.pdf
    • http://loaminoo.linkpc.net/2093090096096095/Dead-by-Midnight-Dead-by-Trilogy-1-Griffin-Powell-11-by-Beverly-Barton.pdf
    • http://loaminoo.linkpc.net/4091092094093090/Daughter-of-Darkness-Trilogy-Box-Set-by-Mandy-M-Roth.pdf
    • http://loaminoo.linkpc.net/4090098093099090/Deception-The-Courier-s-Daughter-Trilogy-2-by-C-J-Redwine.pdf
    • http://loaminoo.linkpc.net/3096091093094092/The-Vampire-Hunter-s-Daughter-Part-VI-The-Vampire-Hunters-Daughter-6-by-Jennifer-Malone-Wright.pdf
    • http://loaminoo.linkpc.net/3099095090098097/Her-Mother-s-Daughter-A-Memoir-of-the-Mother-I-Never-Knew-and-of-My-Daughter-Courtney-Love-by-Linda-Carroll.pdf
    • http://loaminoo.linkpc.net/9092099092094/The-Peaceful-Daughter-s-Guide-to-Separating-from-A-Difficult-Mother-Freeing-Yourself-From-The-Guilt-Anger-Resentment-and-Bitterness-of-Being-Raised-The-Peaceful-Daughter-s-Guides-Book-1-by-Karen-C-L-Anderson.pdf
    • http://loaminoo.linkpc.net/5093090093099094/Dec