Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d7c36479019ff0a…

MALICIOUS

PDF

18.1 KB Created: 2019-05-07 09:32:28 +01:00 Authoring application: mPDF 5.7
MD5: d5540d75a687ce9cf949c7664ee03344 SHA-1: a172830e274f0700a7b18ce96af0f639fe7dc792 SHA-256: 6d7c36479019ff0a0b4b33e4d0858bd93876a2b49bec133dca08d8d10c45abe6
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to host malicious content. The ML classifier also flagged this PDF as malicious. While the URLs themselves are currently marked as benign, the sheer volume and the heuristic firing suggest a malicious intent to redirect users to potentially harmful content.

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/2096090094096/Some-Kind-of-Fairy-Tale-by-Graham-Joyce.pdf
    • http://loaminoo.linkpc.net/4090094093094093/The-Guardians-Nicholas-St-North-and-the-Battle-of-the-Nightmare-King-E-Aster-Bunnymund-and-the-Warrior-Eggs-at-the-Earth-s-Core-Toothiana-Queen-of-the-Tooth-Fairy-Armies-by-William-Joyce.pdf
    • http://loaminoo.linkpc.net/9095099099094096/Master-the-Art-of-Brushing-and-Flossing-with-the-Wisdom-Tooth-Academy-Workbook-amp-Journal-Taught-By-Drumroll-Please-Tallulah-the-Tooth-Fairy-by-Tina-Renee-Cambio.pdf
    • http://loaminoo.linkpc.net/4091096090098096/The-Tooth-Fairy-by-Shirley-Barber.pdf
    • http://loaminoo.linkpc.net/4097095092098/Here-Comes-the-Tooth-Fairy-Cat-by-Deborah-Underwood.pdf
    • http://loaminoo.linkpc.net/4098096096090098/The-Story-of-the-Tooth-Fairy-by-Tom-Paxton.pdf
    • http://loaminoo.linkpc.net/1090098094092092091/Then-the-Tooth-Fairy-Won-t-Come-by-Bonnie-Ferrante.pdf
    • http://loaminoo.linkpc.net/2091092097090095/What-the-Dickens-The-Story-of-a-Rogue-Tooth-Fairy-by-Gregory-Maguire.pdf
    • http://loaminoo.linkpc.net/5097094095091/What-the-Dickens-The-Story-of-a-Rogue-Tooth-Fairy-by-Gregory-Maguire.pdf
    • http://loaminoo.linkpc.net/7093093092093/Horrid-Henry-Tricks-the-Tooth-Fairy-by-Francesca-Simon.pdf
    • http://loaminoo.linkpc.net/1091090092094098/What-the-Dickens-The-Story-of-a-Rogue-Tooth-Fairy-by-Gregory-Maguire.pdf
    • http://loaminoo.linkpc.net/4090097091090091/Dreamside-by-Graham-Joyce.pdf
    • http://loaminoo.linkpc.net/4099094092094093/The-Silent-Land-by-Graham-Joyce.pdf
    • http://loaminoo.linkpc.net/1095099094094093/The-Facts-of-Life-A-Novel-by-Graham-Joyce.pdf
    • http://loaminoo.linkpc.net/2096090097096/The-Silent-Land-by-Graham-Joyce.pdf
    • http://loaminoo.linkpc.net/4096092099095092/Dark-Sister-by-Graham-Joyce.pdf
    • http://loaminoo.linkpc.net/2095098097090/The-Facts-of-Life-by-Graham-Joyce.pdf
    • http://loaminoo.linkpc.net/2096099091093091/Happy-Valentine-s-Slay-Children-of-Hamlin-Tooth-amp-Nail-amp-Fairy-Tale-Ember-in-the-Wind-Jar-of-Hearts-Welcome-to-Sorrow-The-Grimm-Diaries-Prequels-11--14-by-Cameron-Jace.pdf
    • http://loaminoo.linkpc.net/1098098093093093/Tooth-by-Tooth-Comparing-Fangs-Tusks-and-Chompers-by-Sara-Levine.pdf
    • http://loaminoo.linkpc.net/3092098096096093/And-Nothing-but-the-Tooth-Tooth-Is-Stranger-Than-Fiction-3-by-Carroll-James.pdf

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