Malicious PDF — malware analysis report

Static analysis result for SHA-256 110bbf58f9cbed7a…

MALICIOUS

PDF

14.1 KB Created: 2019-05-02 06:59:33 +01:00 Authoring application: mPDF 5.7
MD5: 9d0f6b328e44b92bc32c19c9e2bc2fd5 SHA-1: b169837e44aeacf2202de951f989a8f04dd91cc5 SHA-256: 110bbf58f9cbed7a1bc5c5e0f50f8973f97518f1f45646b6161104fad587a64e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links pointing to external PDF files hosted on the domain 'cefasfese.4pu.com'. This behavior is indicative of a link farm or a content-scraping operation, potentially designed to drive traffic or distribute malicious content disguised as legitimate documents. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9798

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/1731731733734737733/B-UME-by-Manfred-Neuhold.pdf
    • http://cefasfese.4pu.com/9731737732730739/Frederick-Manfred-A-Daughter-Remembers-by-Freya-Manfred.pdf
    • http://cefasfese.4pu.com/3733738733732737/Going-Commando-Heathens-Ink-2-by-K-M-Neuhold.pdf
    • http://cefasfese.4pu.com/6735730731736738/Akasha-Sanatorium-Malachai-Brothers-Beyond-the-Veil-1-by-K-M-Neuhold.pdf
    • http://cefasfese.4pu.com/1731734734731735737/Worth-the-Wait-Sexy-Nerd-Boys-1-by-K-M-Neuhold.pdf
    • http://cefasfese.4pu.com/1730738739734730737/Manfred-Lachs-Found-Law-as-a-Vehicle-by-Manfred-Lachs-Foundation.pdf
    • http://cefasfese.4pu.com/4730737738736/Manfred-by-Lord-Byron.pdf
    • http://cefasfese.4pu.com/1731738734730732738/A-Sanskrit-Grammar-by-Manfred-Mayrhofer.pdf
    • http://cefasfese.4pu.com/1731737734736734733/Lateinische-Dramen-by-Manfred-Brauneck.pdf
    • http://cefasfese.4pu.com/1731737732734737739/Nellis-Tagebuch-2-by-Manfred-K-hler.pdf
    • http://cefasfese.4pu.com/1730735736731730735/Psychologie-Der-Gruppe-by-Manfred-Sader.pdf
    • http://cefasfese.4pu.com/1731730737735738737/The-Neuropsychology-of-Vision-by-Manfred-Fahle.pdf
    • http://cefasfese.4pu.com/4733737730733735/The-Red-Battle-Flyer-by-Manfred-von-Richthofen.pdf
    • http://cefasfese.4pu.com/9731735732735730/Bucklige-kreuzen-den-Weg-by-Manfred-Kratschmann.pdf
    • http://cefasfese.4pu.com/1731737732734737731/Nellis-Tagebuch-3-by-Manfred-K-hler.pdf
    • http://cefasfese.4pu.com/1730739737738730738/Textbausteine-f-r-Arbeitszeugnisse-by-Manfred-Bettauer.pdf
    • http://cefasfese.4pu.com/9731737732731730/Count-Manfred-by-Miranda-Seymour.pdf
    • http://cefasfese.4pu.com/9731737731735734/Manfred-the-Baddie-by-John-Fardell.pdf
    • http://cefasfese.4pu.com/9733731739730734/Das-Tier-in-unserer-Umwelt-by-Manfred-B-rger.pdf
    • http://cefasfese.4pu.com/1731733730737734736/Gelassenheit-Sei-die-Ruhe-im-Sturm-by-Manfred-Hogm-ller.pdf

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