Malicious PDF — malware analysis report

Static analysis result for SHA-256 374d94bed8394e4a…

MALICIOUS

PDF

25.5 KB Created: 2019-05-02 17:41:47 +01:00 Authoring application: mPDF 5.7
MD5: 8c42ad6bae5f8d247dee432bef83f3e9 SHA-1: 2d16365583737dd48dab617cb457aa887176b1d9 SHA-256: 374d94bed8394e4a10ecba79b9205a94724d7c56bcfef117ca1184d364e593cc
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDFs, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier strongly indicated maliciousness. The primary attack pattern involves directing users to a domain hosting numerous PDF files, likely as a lure or to distribute further malware. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9910

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://kiteeearpdf.myhome.cx/1f217f216f218f214/The-Essential-Manual-for-Asperger-Syndrome-ASD-in-the-Classroom-by-Kathy-Hoopmann.pdf
    • http://kiteeearpdf.myhome.cx/4f216f211f213f213f213/Blue-Bottle-Mystery-An-Asperger-Adventure-by-Kathy-Hoopmann.pdf
    • http://kiteeearpdf.myhome.cx/8f213f218f211f210f213/The-Asperger-Computer-A-Self-Published-Guide-on-Asperger-s-Syndrome-and-Multimedia-by-Gregory-Desrosiers.pdf
    • http://kiteeearpdf.myhome.cx/5f212f212f214f217f210/Haze-by-Kathy-Hoopmann.pdf
    • http://kiteeearpdf.myhome.cx/3f215f214f211f212f219/The-Complete-Guide-to-Asperger-s-Syndrome-by-Tony-Attwood.pdf
    • http://kiteeearpdf.myhome.cx/3f218f215f214f214f212/The-Complete-Guide-to-Asperger-s-Syndrome-by-Tony-Attwood.pdf
    • http://kiteeearpdf.myhome.cx/1f210f213f219f211f211/Can-I-tell-you-about-Asperger-Syndrome-A-guide-for-friends-and-family-by-Jude-Welton.pdf
    • http://kiteeearpdf.myhome.cx/4f213f216f211f218f217/The-Feeling-s-Unmutual-Growing-Up-With-Asperger-Syndrome-Undiagnosed-by-Will-Hadcroft.pdf
    • http://kiteeearpdf.myhome.cx/1f210f215f210f212f216f212/Sociotherapeutic-interventions-for-children-with-Asperger-Syndrome-by-Petra-Stockmann.pdf
    • http://kiteeearpdf.myhome.cx/3f213f214f214f216f215/22-Things-a-Woman-Must-Know-If-She-Loves-a-Man-with-Asperger-s-Syndrome-by-Rudy-Simone.pdf
    • http://kiteeearpdf.myhome.cx/3f213f210f212f213f219/22-Things-a-Woman-with-Asperger-s-Syndrome-Wants-Her-Partner-to-Know-by-Rudy-Simone.pdf
    • http://kiteeearpdf.myhome.cx/4f216f218f210f212f215/Life-Is-Complicated-My-journey-with-Asperger-Syndrome-by-Barry-John-Evans.pdf
    • http://kiteeearpdf.myhome.cx/2f212f217f211f218f210/Freaks-Geeks-and-Asperger-Syndrome-A-User-Guide-to-Adolescence-by-Luke-Jackson.pdf
    • http://kiteeearpdf.myhome.cx/1f210f213f219f219f212f213/Life-amp-Spectrum---A-revealing-look-at-high-functioning-autism-and-asperger-s-syndrome-by-C-G-Meloy.pdf
    • http://kiteeearpdf.myhome.cx/1f216f211f215f214f214/The-Journal-of-Best-Practices-A-Memoir-of-Marriage-Asperger-Syndrome-and-One-Man-s-Quest-to-Be-a-Better-Husband-by-David-Finch.pdf
    • http://kiteeearpdf.myhome.cx/6f216f217f210f210f217/The-Oasis-Guide-to-Asperger-Syndrome-Advice-Support-Insight-and-Inspiration-by-Patricia-Romanowski-Bashe.pdf
    • http://kiteeearpdf.myhome.cx/7f217f213f215f210f213/Toi-qu-on-dit-quot-autiste-quot-Le-syndrome-d-Asperger-expliqu-aux-enfants-by-Claire-Grand.pdf
    • http://kiteeearpdf.myhome.cx/7f211f213f212f218f214/Visual-Techniques-for-Developing-Social-Skills-Activities-and-Lesson-Plans-for-Teaching-Children-with-High-Functioning-Autism-and-Asperger-s-Syndrome-by-Rebecca-A-Moyes.pdf
    • http://kiteeearpdf.myhome.cx/2f213f217f218f216f218/Autism-Spectrum-Disorders-The-Complete-Guide-to-Understanding-Autism-Asperger-s-Syndrome-Pervasive-Developmental-Disorder-and-Other-ASDs-by-Chantal-Sicile-Kira.pdf
    • http://kiteeearpdf.myhome.cx/4f210f211f211f218f217/Chemical-Sensitivity-A-Guide-to-Coping-with-Hypersensitivity-Syndrome-Sick-Building-Syndrome-and-Other-Environmental-Illnesses-by-Bonnye-L-Matthews.pdf

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