Malicious PDF — malware analysis report

Static analysis result for SHA-256 4190f7811d1ade43…

MALICIOUS

PDF

23.0 KB Created: 2019-05-01 18:49:42 +01:00 Authoring application: mPDF 5.7
MD5: 5e771dbcf91a83d4468ed9e63d606734 SHA-1: c0944c1a09e38ceccb4118e6840d43bd452b1121 SHA-256: 4190f7811d1ade43420fef161844e56605fa83ed81192c235fa0cea3b03f3cbf
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. These URLs point to external documents, suggesting a link farm or redirection mechanism. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample. The primary attack pattern involves directing users to external content via these numerous links.

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://kiteeearpdf.myhome.cx/6f215f219f216f218f217/What-Your-Doctor-Won-t-Tell-You-about-Your-Lower-Back-Avoid-the-Pitfalls-Scams-Shysters-Con-Men-Charlatans-and-Quacks-by-Bill-Yancey.pdf
    • http://kiteeearpdf.myhome.cx/1f211f215f213f210f219f213/The-Funny-Side-of-Physic-or-the-Mysteries-of-Medicine-Presenting-the-Humorous-and-Serious-Sides-of-Medical-Practice-An-Expos-of-Medical-Humbugs-Quacks-and-Charlatans-in-All-Ages-and-All-Countries-by-Addison-Darre-Crabtre.pdf
    • http://kiteeearpdf.myhome.cx/6f215f219f216f215f217/Quantum-Timeline-by-Bill-Yancey.pdf
    • http://kiteeearpdf.myhome.cx/8f219f210f213f218f215/Back-Care-Basics-A-Doctor-s-Gentle-Yoga-Program-for-Back-and-Neck-Pain-Relief-by-Mary-Pullig-Schatz.pdf
    • http://kiteeearpdf.myhome.cx/7f219f215f219f215f214/Patriote-Movement-Lower-Canada-Rebellion-Bibliography-of-the-1837-1838-Insurrections-in-Lower-Canada-Ceinture-Flechee-by-Source-Wikipedia.pdf
    • http://kiteeearpdf.myhome.cx/4f211f216f218f211f212/Back-from-the-Dead-by-Bill-Walton.pdf
    • http://kiteeearpdf.myhome.cx/1f215f216f217f210f215/Back-to-Work-Why-We-Need-Smart-Government-for-a-Strong-Economy-by-Bill-Clinton.pdf
    • http://kiteeearpdf.myhome.cx/3f216f219f215f218f210/Fighting-Back-The-War-on-Terrorism-from-Inside-the-Bush-White-House-by-Bill-Sammon.pdf
    • http://kiteeearpdf.myhome.cx/9f219f212f217f214f216/Scams-and-Fraud-in-Thailand-With-a-Smile-by-D-Farang.pdf
    • http://kiteeearpdf.myhome.cx/1f214f217f213f211f211/The-Back-Up-Series-Box-Set-Back-Up-Front-amp-Center-Encore-Back-Up-1-3-by-A-M-Madden.pdf
    • http://kiteeearpdf.myhome.cx/4f212f214f219f217f219/Pitfalls-of-Desire-Winston-by-Jennifer-Campbell.pdf
    • http://kiteeearpdf.myhome.cx/6f211f216f213f211f211/Anatomy-of-a-Ponzi-Scams-Past-and-Present-by-Colleen-Cross.pdf
    • http://kiteeearpdf.myhome.cx/1f211f211f216f210f213f215/Everything-Is-Bullshit-The-greatest-scams-on-Earth-revealed-by-Alex-Mayyasi.pdf
    • http://kiteeearpdf.myhome.cx/8f210f214f217f211f217/Muslim-Teens-in-Pitfalls-and-Pranks-by-Maryam-Mahmoodian.pdf
    • http://kiteeearpdf.myhome.cx/5f215f213f210f211f217/IT-Free-Fall-The-Business-Owner-s-Guide-to-Avoiding-Technology-Pitfalls-by-Nick-Bernfeld.pdf
    • http://kiteeearpdf.myhome.cx/5f215f213f210f210f219/It-Free-Fall-The-Business-Owner-s-Guide-to-Avoiding-Technology-Pitfalls-by-Nick-Bernfeld.pdf
    • http://kiteeearpdf.myhome.cx/3f214f219f213f215f216/Back-To-Back-Behind-Your-Back-2-by-Chelsea-M-Cameron.pdf
    • http://kiteeearpdf.myhome.cx/3f215f211f212f213f214/Curing-Doctor-Vincent-The-Good-Doctor-Trilogy-1-by-Renea-Mason.pdf
    • http://kiteeearpdf.myhome.cx/3f219f217f219f216f212/Doctor-Who-Nothing-O-Clock-Doctor-Who-50th-Anniversary-E-Shorts-11-by-Neil-Gaiman.pdf
    • http://kiteeearpdf.myhome.cx/6f213f211f218f216f210/Doctor-Who-Time-Reaver-The-Tenth-Doctor-Adventures-1-2-by-Jenny-T-Colgan.pdf
    • http://kiteeearpdf.myhome.cx/8f219f210f213f218f215/Back-Care-Basics-A-Doctor-s-Gentle-Yoga-Program-for-Back-and-Neck-Pain-Relief-by-

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