Malicious PDF — malware analysis report

Static analysis result for SHA-256 6538f698c67baa1e…

MALICIOUS

PDF

17.3 KB Created: 2019-04-30 03:44:48 +01:00 Authoring application: mPDF 5.7
MD5: 80b7d14b22fefc8dbe2fb0f3bbc09e2f SHA-1: 7692576fda6c9cbf0b3e8f5af4b2408d2e31a49d SHA-256: 6538f698c67baa1edb3dee0f1f59afb97f2bdb7859ee49fe58504f3923722321
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified as a 'PDF_SEO_LINK_FARM' heuristic. These links point to external domains and appear to be designed to manipulate search engine rankings or direct users to potentially malicious content. While no scripts were explicitly extracted, the nature of the embedded links suggests an attempt to redirect users, which is a common tactic for malware delivery or phishing. The ML classifier also flagged this PDF as malicious.

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/4092099092091/A-Murder-of-Quality-by-John-le-Carr-.pdf
    • http://loaminoo.linkpc.net/4090099099097097/A-Murder-of-Quality-by-John-le-Carr-.pdf
    • http://loaminoo.linkpc.net/4097092091093092/A-Murder-of-Quality-George-Smiley-2-by-John-le-Carr-.pdf
    • http://loaminoo.linkpc.net/6099094096096090/The-John-Dickson-Carr-Treasury-by-John-Dickson-Carr.pdf
    • http://loaminoo.linkpc.net/8096094095094091/Enhancing-Quality-of-Web-Service-Based-Cooperative-Business-Processes--Definition-and-Monitoring-of-Quality-Constraints-by-Tobias-Berr.pdf
    • http://loaminoo.linkpc.net/2093097097095099/Crossing-the-Quality-Chasm-A-New-Health-System-for-the-21st-Century-by-Committee-on-Quality-of-Health-Care-in-America.pdf
    • http://loaminoo.linkpc.net/5097093094098091/Axiomatic-Quality-Integrating-Axiomatic-Design-with-Six-Sigma-Reliability-and-Quality-Engineering-by-Basem-S-El-Haik.pdf
    • http://loaminoo.linkpc.net/5092091097091095/John-Owen-by-Simonetta-Carr.pdf
    • http://loaminoo.linkpc.net/1091092095091098096/Der-Teufel-in-Samt-Roman-by-John-Dickson-Carr.pdf
    • http://loaminoo.linkpc.net/3094094095098090/Life-in-France-under-Louis-XIV-by-John-Laurence-Carr.pdf
    • http://loaminoo.linkpc.net/2096097094092096/Hag-s-Nook-Dr-Gideon-Fell-1-by-John-Dickson-Carr.pdf
    • http://loaminoo.linkpc.net/2093097090097095/The-Three-Coffins-Dr-Gideon-Fell-6-by-John-Dickson-Carr.pdf
    • http://loaminoo.linkpc.net/3096091092090097/The-Corpse-in-the-Waxworks-Henri-Bencolin-4-by-John-Dickson-Carr.pdf
    • http://loaminoo.linkpc.net/2093097093097091/The-Life-of-Sir-Arthur-Conan-Doyle-by-John-Dickson-Carr.pdf
    • http://loaminoo.linkpc.net/3095096096095097/The-Crooked-Hinge-Dr-Gideon-Fell-8-by-John-Dickson-Carr.pdf
    • http://loaminoo.linkpc.net/4095094098098090/Murder-Most-Gay-Murder-Most-Gay-1-by-John-Simpson.pdf
    • http://loaminoo.linkpc.net/3095096097098094/The-Problem-of-the-Green-Capsule-Dr-Gideon-Fell-10-by-John-Dickson-Carr.pdf
    • http://loaminoo.linkpc.net/4099092092098093/Till-Death-Do-Us-Part-Dr-Gideon-Fell-15-by-John-Dickson-Carr.pdf
    • http://loaminoo.linkpc.net/2092097098090094/The-Case-of-the-Constant-Suicides-Dr-Gideon-Fell-13-by-John-Dickson-Carr.pdf
    • http://loaminoo.linkpc.net/5097090093098090/Allen-Carr-s-Easyweigh-to-Lose-Weight-by-Allen-Carr.pdf

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