Malicious PDF — malware analysis report

Static analysis result for SHA-256 aee08b6b610b931a…

MALICIOUS

PDF

19.2 KB Created: 2019-05-03 17:54:12 +01:00 Authoring application: mPDF 5.7
MD5: f73c964e5d8adef26bbe34734cf30497 SHA-1: 2201076a2f0353bfc0e3704e184e5ef305ea505b SHA-256: aee08b6b610b931a9adaed1a1394b6ea2682c5a374ce23b5760316e91b53e2c6
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, which suggests a link farm or SEO poisoning attack. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were extracted, the sheer volume of external links points towards an attempt to manipulate search results or distribute malicious content through these links. The URLs themselves are not directly malicious but serve as the delivery mechanism for the attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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/1731736730738732739/Bloody-Marys-Das-Leben-birgt-ein-t-dliches-Risiko-by-Sabine-Deitmer.pdf
    • http://cefasfese.4pu.com/1731736730738733735/Morde-f-r-die-Handtasche-by-Sabine-Deitmer.pdf
    • http://cefasfese.4pu.com/7731734730731/Sabine-s-Notebook-Griffin-amp-Sabine-2-by-Nick-Bantock.pdf
    • http://cefasfese.4pu.com/1730738736733738737/Sicherheit-und-Risiko-in-Fels-und-Eis-01-by-Pit-Schubert.pdf
    • http://cefasfese.4pu.com/1730736735731735737/Agentur-Lux---Volles-Risiko---Folge-1-by-H-P-Karr.pdf
    • http://cefasfese.4pu.com/1731738733734735731/The-Ten-Marys-and-the-Angel-Gabriel-by-Aurora-Magni.pdf
    • http://cefasfese.4pu.com/2732732738733739/The-Two-Marys-The-Hidden-History-of-the-Mother-and-Wife-of-Jesus-by-Sylvia-Browne.pdf
    • http://cefasfese.4pu.com/1730731733736732732/The-Bloody-Chocolate-Series-The-Bloody-Chocolate-1-3-by-Lorrie-Bannett.pdf
    • http://cefasfese.4pu.com/1730730733734736737/Wie-soll-ich-leben-oder-Das-Leben-Montaignes-in-einer-Frage-und-zwanzig-Antworten-by-Sarah-Bakewell.pdf
    • http://cefasfese.4pu.com/9736735732733737/Perfektion-Key-to-see-10-Wege-das-Leben-zu-leben-by-Mira-M-hlenhof.pdf
    • http://cefasfese.4pu.com/1730737730739738730/K-nigliches-Leben-Zitate-Erneuere-dein-Denken---Ver-ndere-dein-Leben-by-Eric-Supen.pdf
    • http://cefasfese.4pu.com/1731730730733738737/Jean-Paul-S-mtliche-Romane-in-einem-Band-Die-unsichtbare-Loge-Flegeljahre-Hesperus-oder-45-Hundposttage-Siebenk-s-Titan-Leben-Fibels-Der-Komet-Leben-des-Quintus-Fixlein-by-Jean-Paul.pdf
    • http://cefasfese.4pu.com/1739738738738735/Under-Your-Skin-by-Sabine-Durrant.pdf
    • http://cefasfese.4pu.com/2736732737732731/Remember-Me-This-Way-A-Novel-by-Sabine-Durrant.pdf
    • http://cefasfese.4pu.com/6739737739737735/Les-mythologies-by-Sabine-Jourdain.pdf
    • http://cefasfese.4pu.com/1731731736731731735/Chantalle-Cillner---Der-Grosse-Sammelband-Mein-Traumhaftes-Leben---Mein-Leben-in-Miedern---Im-Kreis-Der-Hexen-by-Chantalle-Cillner.pdf
    • http://cefasfese.4pu.com/1731736738732730735/DIE-BRILLE-IM-FILM-by-Sabine-Walter.pdf
    • http://cefasfese.4pu.com/8739733738737736/Gedanken-in-Zeilen-by-Sabine-Geist.pdf
    • http://cefasfese.4pu.com/9736732734736738/Falsche-Pillen-by-Sabine-Karcher.pdf
    • http://cefasfese.4pu.com/1731733732730737737/Mords-Idylle-by-Sabine-Hartmann.pdf

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