Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f3b024a38ecd04e…

MALICIOUS

PDF

35.7 KB Created: 2019-05-02 07:53:39 +01:00 Authoring application: mPDF 5.7
MD5: 17a3282fc27f2b7b70ee2c811070f23c SHA-1: d83c29dc9d08f5fb8817cd5c08031c34006368b4 SHA-256: 9f3b024a38ecd04e1303ecf8c7dd197a36b767bdebcfdd1f27de54013618fb19
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

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

Machine Learning

  • Nyx PDF Classifier malicious score 0.9657

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/5738738732735732/Ask-Marilyn-The-Best-of-quot-Ask-Marilyn-quot-Letters-Published-in-Parade-Magazine-from-1986-to-1992-and-Many-More-Never-Before-Published-by-Marilyn-Vos-Savant.pdf
    • http://cefasfese.4pu.com/9730733734735734/Amaryllis-of-Hawaii-Loves-to-Cook-quot-Recipes-for-Life-quot-by-Marilyn-Jansen.pdf
    • http://cefasfese.4pu.com/1732735730737731/De-published---now-part-of-quot-For-Every-Action-quot-by-Jason-Faris.pdf
    • http://cefasfese.4pu.com/5738738731735734/The-Art-of-Spelling-The-Madness-and-the-Method-by-Marilyn-Vos-Savant.pdf
    • http://cefasfese.4pu.com/8738737733734732/Marilyn-Manson-The-Long-Hard-Road-Out-of-Hell-by-Marilyn-Manson.pdf
    • http://cefasfese.4pu.com/1731730733736738732/-sthetik-des-Verschwindens-bei-Christian-Kracht-Zur-Regression-in-quot-Faserland-quot-quot-1979-quot-quot-Ich-werde-hier-sein-im-Sonnenschein-und-im-Schatten-quot-und-quot-Metan-quot-by-S-ren-Benjamin-Sobbe.pdf
    • http://cefasfese.4pu.com/5737735738739734/The-Secret-Letters-of-Marilyn-Monroe-and-Jacqueline-Kennedy-by-Wendy-Leigh.pdf
    • http://cefasfese.4pu.com/9737739735735734/Room-for-Manoeuvre-The-Role-of-Intertext-in-Elfriede-Jelinek-s-quot-Die-Klavierspielerin-quot-G-nter-Grass-s-quot-Ein-weites-Feld-quot-and-Herta-M-ller-s-quot-Niederungen-quot-und-quot-Reisende-auf-einem-Bein-quot-by-Morwenna-Symons.pdf
    • http://cefasfese.4pu.com/1730734730735734734/Vergleich-Der-Darstellung-Des-quot-Wunderbaren-quot-in-Johann-Hartliebs-quot-Alexanderroman-quot-Und-Gottfried-Von-Straburgs-quot-Tristan-quot-by-Katharina-Neuhaus.pdf
    • http://cefasfese.4pu.com/6730731739735731/Mister-E-s-Mysteries-Volume-6-quot-Where-Seldom-Is-Heard-a-Discouraging-Word-quot-quot-The-Case-of-the-Burqa-ed-Busker-quot-quot-The-Day-After-Memorial-Day-quot-by-Gerald-Elias.pdf
    • http://cefasfese.4pu.com/9736732738730732/Mahlzeiten-in-Thomas-Manns-Romanen-Eine-Studie-zu-quot-Buddenbrooks-quot-quot-Der-Zauberberg-quot-und-quot-Bekenntnisse-des-Hochstaplers-Felix-Krull-quot-by-Dominica-Triendl.pdf
    • http://cefasfese.4pu.com/9733735735739730/Liebesgl-ck-und-Sommerregen-Drei-romantische-Romane-in-einem-eBook-quot-Danke-f-r-die-Blumen-quot-quot-Busfahrt-in-den-7-Himmel-quot-und-quot-Unverhofft-kommt-oft-quot-by-Ashley-Bloom.pdf
    • http://cefasfese.4pu.com/4738730731733732/The-First-Adventures-Of-Little-Tim-Gift-Box-Set-quot-Little-Tim-And-The-Brave-Sea-Captain-quot-quot-Tim-And-Lucy-Go-To-Sea-quot-quot-Tim-To-The-Rescue-quot-by-Edward-Ardizzone.pdf
    • http://cefasfese.4pu.com/8734731738732736/OF-HUMAN-BONDAGE-One-of-the-Top-100-Best-Novels-of-the-20th-century-by-the-prolific-British-playwright-novelist-and-short-story-writer-author-of-quot-The-Edge-quot-quot-The-Painted-Veil-quot-quot-Cakes-and-Ale-quot-by-W-Somerset-Maugham.pdf
    • http://cefasfese.4pu.com/1731736734735733738/Utopische-Prosa-ALS-L-Ngeres-Gedankenspiel-Untersuchungen-Zu-Arno-Schmidts-Theorie-Der-Modernen-Literatur-Und-Ihrer-Konkretisierung-in-quot-Schwarze-Spiegel-quot-quot-die-Gelehrtenrepublik-quot-Und-quot-Kaff-Auch-Mare-Crisium-quot-by-Boy-Hinrichs.pdf
    • http://cefasfese.4pu.com/1730737739732736737/Gerhart-Hauptmann-quot-Bahnw-rter-Thiel-quot-quot-Vor-Sonnenaufgang-quot-quot-Der-Apostel-quot-quot-Der-Ketzer-von-Soana-quot-by-Gerhart-Hauptmann.pdf
    • http://cefasfese.4pu.com/3733730736735/My-Story-quot-A-Child-Called-It-quot-quot-The-Lost-Boy-quot-quot-A-Man-Named-Dave-quot-by-Dave-Pelzer.pdf
    • http://cefasfese.4pu.com/3730737730738733/Look-After-Each-Other-by-Marilyn-Rice.pdf
    • http://cefasfese.4pu.com/3731738734735734/Fog-Cat-by-Marilyn-Helmer.pdf
    • http://cefasfese.4pu.com/4731733732737735/Night-of-Sin-by-Marilyn-Lee.pdf
    • http://cefasfese.4pu.com/1731730733736738732/-sthetik-des-Verschwindens-bei-Christian-Kracht-Zur-Regression-in-quot-Faserland-quot-quot-1979-quot-quot-Ich

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