Malicious PDF — malware analysis report

Static analysis result for SHA-256 25f12656f86e2c49…

MALICIOUS

PDF

19.2 KB Created: 2019-05-02 17:59:54 +01:00 Authoring application: mPDF 5.7
MD5: 3f9ad6fa877da2ea13926eb6cb297540 SHA-1: 1fc36e015b897a65bf78ac1e940e6fed8b6512cf SHA-256: 25f12656f86e2c496cd001d61aa510d396aa5675d9107db86c8419481c73a9a2
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, identified as a link farm, which is a common technique for SEO poisoning or directing users to malicious sites. The ML classifier also flagged this PDF with high confidence. The embedded URLs are the primary IOCs, and the attack pattern suggests a lure to external malicious content.

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://kiteeearpdf.myhome.cx/2f212f214f215f212f211/Innocent-Abroad-Belgium-at-the-Paris-Peace-Conference-of-1919-by-Sally-Marks.pdf
    • http://kiteeearpdf.myhome.cx/9f214f218f210f219f214/Aliens-and-Me-Funny-Manga-Story-About-Aliens-and-Humans-by-Zeren.pdf
    • http://kiteeearpdf.myhome.cx/8f211f214f219f210f217/The-cosmic-ruins--The-truth-of-the-Aliens--The-research-book-of-the-footprint-of-aliens-HODO-BOOKS-by-WADO-KOUSAKA.pdf
    • http://kiteeearpdf.myhome.cx/7f217f212f215f216f219/The-Best-Friend-Incident-by-Melia-Alexander.pdf
    • http://kiteeearpdf.myhome.cx/3f213f215f215f218f212/The-Chronicles-of-the-Secret-Society-The-End-of-the-Standoff-1-by-Melia-Burrell.pdf
    • http://kiteeearpdf.myhome.cx/1f210f216f219f218f213f218/The-Galactic-Supermassive-Black-Hole-by-Fulvio-Melia.pdf
    • http://kiteeearpdf.myhome.cx/6f212f218f216f213f213/The-Paris-Game-Charles-de-Gaulle-the-Liberation-of-Paris-and-the-Gamble-that-Won-France-by-Ray-Argyle.pdf
    • http://kiteeearpdf.myhome.cx/4f216f219f210f214f216/Marie-Mystery-at-the-Paris-Ballet-Paris-1775-by-Jacqueline-Dembar-Greene.pdf
    • http://kiteeearpdf.myhome.cx/3f214f216f217f210/Paris-Connections-African-American-Artists-In-Paris-by-Asake-Bomani.pdf
    • http://kiteeearpdf.myhome.cx/5f213f214f212f214f215/Contemporary-Living-in-Paris-Demeures-Contemporaines-a-Paris-Hendendaags-Wonen-in-Parijs-by-Wim-Pauwels.pdf
    • http://kiteeearpdf.myhome.cx/8f214f215f215f211f214/Clamp-In-Paris-Exposition-Paris-Galerie-Des-Biblioth-ques-3-Juillet-27-Septembre-2009-by-Pierre-Valls.pdf
    • http://kiteeearpdf.myhome.cx/4f213f216f215f216f213/Paris-Paris-Journey-into-the-City-of-Light-by-David-Downie.pdf
    • http://kiteeearpdf.myhome.cx/4f214f215f214f218f212/Take-the-Kids-Paris-and-Disneyland-Resort-Paris-5th-by-Helen-Truszkowski.pdf
    • http://kiteeearpdf.myhome.cx/6f216f210f211f214f218/An-American-in-Paris-Un-Americain-a-Paris-by-LeRoy-Neiman.pdf
    • http://kiteeearpdf.myhome.cx/3f210f217f219f214f214/Batman-Aliens-by-Ron-Marz.pdf
    • http://kiteeearpdf.myhome.cx/1f211f216f217f219f215f211/Aliens-DNA-War-by-Diane-Carey.pdf
    • http://kiteeearpdf.myhome.cx/4f215f214f210f210f219/The-New-Guy-Office-Aliens-2-by-V-C-Lancaster.pdf
    • http://kiteeearpdf.myhome.cx/3f210f218f210f216f213/Batman-Aliens-2-by-Ian-Edginton.pdf
    • http://kiteeearpdf.myhome.cx/5f214f214f211f215f216/Journal-Paris-France-Personal-Journal-by-Aprilynne-Paris.pdf
    • http://kiteeearpdf.myhome.cx/4f210f216f214f219f211/Living-With-Aliens-by-John-DeChancie.pdf
    • http://kiteeearpdf.myhome.cx/6f212f218f216f213f213/The-Paris-Game-Charles-de-Gaulle-the-Liber

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