Malicious PDF — malware analysis report

Static analysis result for SHA-256 f73e78f70dae566f…

MALICIOUS

PDF

18.5 KB Created: 2019-05-02 05:58:02 +01:00 Authoring application: mPDF 5.7
MD5: e25aa9ebb8fca4275c7799309444d02b SHA-1: a3520267a55e6291fdbf4aeb4767e2d2987da547 SHA-256: f73e78f70dae566f46469ae38ef84301f18c3291106fac6f24305f19c730840a
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a link farm with 24 external links, predominantly using numeric slugs in the URL path. This technique is often used to direct users to malicious websites, potentially for phishing or malware distribution. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9775

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://cefasfese.4pu.com/3738734738736731/Ben-There-Done-That-Sabrina-The-Teenage-Witch-6-by-Joseph-Locke.pdf
    • http://cefasfese.4pu.com/1731732731739733733/Know-It-All-Sabrina-the-Teenage-Witch-43-by-Lisa-Fiedler.pdf
    • http://cefasfese.4pu.com/2734731733738738/Sabrina-the-Teenage-Witch-The-Magic-Within-Vol-1-by-Tania-del-Rio.pdf
    • http://cefasfese.4pu.com/3737734731738730/Magic-of-Sabrina-the-Teenage-Witch-by-Bill-Golliher.pdf
    • http://cefasfese.4pu.com/4734730735731735/Harvest-Moon-Sabrina-the-Teenage-Witch-15-by-Mel-Odom.pdf
    • http://cefasfese.4pu.com/4734730734739738/A-Dog-s-Life-Sabrina-the-Teenage-Witch-9-by-Cathy-East-Dubowski.pdf
    • http://cefasfese.4pu.com/1731735735738737733/Mamma-pappa-mumie-Sabrina-the-Teenage-Witch-31-by-Mel-Odom.pdf
    • http://cefasfese.4pu.com/4734730735732736/Halloween-Havoc-Sabrina-the-Teenage-Witch-4-by-Diana-G-Gallagher.pdf
    • http://cefasfese.4pu.com/4739738737739735/Eight-Spells-a-Week-Sabrina-the-Teenage-Witch-17-by-Nell-Scovell.pdf
    • http://cefasfese.4pu.com/1739737730733733/Good-Switch-Bad-Switch-Sabrina-the-Teenage-Witch-3-by-David-Cody-Weiss.pdf
    • http://cefasfese.4pu.com/2730736739733731/Black-Widow-Witch-by-A-J-Locke.pdf
    • http://cefasfese.4pu.com/3731734734738734/The-Demon-the-Witch-and-the-Teenage-Vampire-by-Glenn-Scrimshaw.pdf
    • http://cefasfese.4pu.com/1730739731733737737/Number-176520-The-Story-Of-Paul-Argiewicz-A-Teenage-Holocaust-Survivor-by-Deanne-Joseph-Ebner.pdf
    • http://cefasfese.4pu.com/5734739734732/Revenge-of-the-Witch-The-Last-Apprentice-Wardstone-Chronicles-1-by-Joseph-Delaney.pdf
    • http://cefasfese.4pu.com/4737733737739738/Revenge-of-the-Witch-The-Last-Apprentice-Wardstone-Chronicles-Book-1-by-Joseph-Delaney.pdf
    • http://cefasfese.4pu.com/8733737736730730/Locke-amp-Key-Vol-1-Welcome-To-Lovecraft-Locke-amp-Key-1-by-Joe-Hill.pdf
    • http://cefasfese.4pu.com/1731730730739739733/Witch-Children-From-Salem-Witch-Hunts-to-Modern-Courtrooms-by-Hans-Sebald.pdf
    • http://cefasfese.4pu.com/4737736735738737/Return-Of-The-Witch-Detective-Marcella-Witch-s-series-9-by-Dana-E-Donovan.pdf
    • http://cefasfese.4pu.com/1731739734739739/The-Briley-Witch-Chronicles-Books-1-and-2-The-Spirit-of-a-Witch-Storm-Grey-by-Sarah-Jane-Avory.pdf
    • http://cefasfese.4pu.com/3737736738734733/Witch-Is-Why-The-Wolf-Howled-A-Witch-P-I-Mystery-18-by-Adele-Abbott.pdf
    • http://cefasfese.4pu.com/1739737730

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