Malicious PDF — malware analysis report

Static analysis result for SHA-256 500130a41a94db1a…

MALICIOUS

PDF

23.6 KB Created: 2019-05-04 06:42:45 +01:00 Authoring application: mPDF 5.7
MD5: f51c2deaf595753f4998df69aba96190 SHA-1: d72de942fc46342cf51e78cc69f4a74da046e944 SHA-256: 500130a41a94db1ac52a83ff7e879ec13a890a42a7b2f5f1a61214698dc9f8a6
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to drive traffic to malicious sites. The ML classifier also flagged this document as malicious. No scripts were extracted from this sample, and the document body was heavily obfuscated, preventing a deeper analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9711

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.4
    • http://cefasfese.4pu.com/3735737738738739/The-Oxmarket-Aspal-Murder-Mystery-A-John-Handful-Novel-2-by-Andrew-Hixson.pdf
    • http://cefasfese.4pu.com/7739739737730736/Dance-Macabre-A-Handful-of-Secrets-7-by-Andrew-Hixson.pdf
    • http://cefasfese.4pu.com/1733737735736737/Recipes-for-Love-and-Murder-Tannie-Maria-Mystery-1-by-Sally-Andrew.pdf
    • http://cefasfese.4pu.com/5735737732735732/PAX-BRITANNIA-Murder-on-the-Frontier-A-Centurion-Sextus-Mystery-A-Centurion-Sextus-Murder-Mystery-by-Richard-Orton.pdf
    • http://cefasfese.4pu.com/4739731733737733/Murder-Imperfect-Libby-Sarjeant-Murder-Mystery-Series-by-Lesley-Cookman.pdf
    • http://cefasfese.4pu.com/4738738737731732/Sex-Murder-And-A-Double-Latte-A-Sophie-Katz-Murder-Mystery-1-by-Kyra-Davis.pdf
    • http://cefasfese.4pu.com/6735736739739/Sex-Murder-And-A-Double-Latte-A-Sophie-Katz-Murder-Mystery-1-by-Kyra-Davis.pdf
    • http://cefasfese.4pu.com/1731739738735730/Murder-Becomes-Manhattan-A-Dalton-Lee-Mystery-The-Murder-Becomes-series-Book-1-by-Jeffrey-Eaton.pdf
    • http://cefasfese.4pu.com/6730735736738736/Murder-on-the-Green-A-gripping-crime-mystery-full-of-cooking-and-murder-by-H-V-Coombs.pdf
    • http://cefasfese.4pu.com/4739731735735739/Murder-in-the-Green-Libby-Sarjeant-Murder-Mystery-Series-by-Lesley-Cookman.pdf
    • http://cefasfese.4pu.com/3737736733739732/Murder-by-Serpents-The-Murder-Quilt-Theo-and-Tony-Abernathy-Mystery-1-by-Barbara-Graham.pdf
    • http://cefasfese.4pu.com/2736735734732732/A-Talent-for-Murder-by-Andrew-Wilson.pdf
    • http://cefasfese.4pu.com/1735730735735736/The-Irrationalist-The-Tragic-Murder-of-Ren-Descartes-by-Andrew-Pessin.pdf
    • http://cefasfese.4pu.com/1730739732733738735/Articles-on-Novels-by-Agatha-Christie-Including-Crooked-House-the-Secret-Adversary-N-or-M-the-Seven-Dials-Mystery-the-Secret-of-Chimneys-the-Man-in-the-Brown-Suit-the-Sittaford-Mystery-Why-Didn-t-They-Ask-Evans-Murder-Is-Easy-by-Hephaestus-Books.pdf
    • http://cefasfese.4pu.com/1736734730730/Room-One-A-Mystery-or-Two-by-Andrew-Clements.pdf
    • http://cefasfese.4pu.com/1736731730734730/The-Teeth-May-Smile-But-the-Heart-Does-Not-Forget-Murder-and-Memory-in-Uganda-by-Andrew-Rice.pdf
    • http://cefasfese.4pu.com/9738733733735735/Moon-Lake-Murder-Murder-at-Witches-Point-Moon-Lake-Mystery-7-by-Lucia-Kuhl.pdf
    • http://cefasfese.4pu.com/4732738733730730/The-Woman-Before-Wallis-Prince-Edward-the-Parisian-Courtesan-and-the-Perfect-Murder-by-Andrew-Rose.pdf
    • http://cefasfese.4pu.com/1734734736733737/Just-Murder-A-Mystery-Novel-by-Jan-Rehner.pdf
    • http://cefasfese.4pu.com/9739737736733736/The-Montauk-Murder-Mystery-by-J-M-.pdf