Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfa1a107dea51b3a…

MALICIOUS

PDF

24.6 KB Created: 2019-05-01 18:49:06 +01:00 Authoring application: mPDF 5.7
MD5: 771b1cb5f98cd6f09843fc409d8bced1 SHA-1: 063a3020db8189d4de07ce8e5792b9b4241228dc SHA-256: cfa1a107dea51b3a6eceb252a7838bfdfe298ece77db008884a25a18ec44563f
90 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded URLs pointing to external websites. The critical heuristic firing indicates a 'PDF_SEO_LINK_FARM', suggesting the primary purpose is to redirect users to numerous pages. While no scripts were extracted, the ML classifier strongly flagged this PDF as malicious. The embedded URLs are the highest priority IOCs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9901

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/9f216f211f217f219f214/Der-IT-Security-Manager-Aktuelles-Praxiswissen-f-r-IT-Security-Manager-und-IT-Sicherheitsbeauftragte-in-Unternehmen-und-Beh-rden-by-Heinrich-Kersten.pdf
    • http://kiteeearpdf.myhome.cx/9f216f211f217f219f213/Der-It-Security-Manager-Aktuelles-Praxiswissen-Fur-It-Security-Manager-Und-It-Sicherheitsbeauftragte-in-Unternehmen-Und-Behorden-by-Heinrich-Kersten.pdf
    • http://kiteeearpdf.myhome.cx/9f216f211f218f216f211/Der-IT-Security-Manager-Aktuelles-Praxiswissen-f-r-IT-Security-Manager-und-IT-Sicherheitsbeauftragte-in-Unternehmen-und-Beh-rden-by-Kersten.pdf
    • http://kiteeearpdf.myhome.cx/4f218f215f212f216f211/American-Dream-Machine-by-Matthew-Specktor.pdf
    • http://kiteeearpdf.myhome.cx/1f211f212f212/Dream-a-Little-Dream-Dream-a-Little-Dream-1-by-Giovanna-Fletcher.pdf
    • http://kiteeearpdf.myhome.cx/6f210f219f217f213f214/The-Interpretation-of-Dreams-The-Dream-as-a-Fulfillment-of-a-Wish-Distortion-in-Dreams-The-Method-of-Dream-Interpretation-The-Sources-of-Dreams-amp-The-Psychology-of-the-Dream-Activities-by-Sigmund-Freud.pdf
    • http://kiteeearpdf.myhome.cx/6f210f210f213f217/The-One-Minute-Manager-by-Kenneth-H-Blanchard.pdf
    • http://kiteeearpdf.myhome.cx/2f217f211f214f211f216/Ditching-the-Dream-amp-Not-In-My-Wildest-Dreams-The-Dream-Series-Books-1-amp-2-by-Isabelle-Peterson.pdf
    • http://kiteeearpdf.myhome.cx/6f211f215f213f214f211/Matthew-Scriven-s-Little-Book-of-Online-Marketing-Secrets-Harness-the-Power-of-the-Internet-to-Boost-Your-Profits-by-Matthew-Scriven.pdf
    • http://kiteeearpdf.myhome.cx/1f216f211f219f217f212/Peter-Wilson-s-Dream-Theater-The-Dream-Master-by-John-C-Archer.pdf
    • http://kiteeearpdf.myhome.cx/9f214f212f214f210f218/Living-the-Waking-Dream-We-Live-out-Our-Lives-in-the-Dream-by-Michael-Jean-Nystrom-Schut.pdf
    • http://kiteeearpdf.myhome.cx/5f218f211f219f214/Dream-the-Impossible-Dream-Zen-Pencils-Volume-Two-by-Gavin-Aung-Than.pdf
    • http://kiteeearpdf.myhome.cx/2f218f213f216f218f218/Dream-a-Little-Dream-Chicago-Stars-4-by-Susan-Elizabeth-Phillips.pdf
    • http://kiteeearpdf.myhome.cx/1f211f211f215f219/Dream-a-Little-Dream-Chicago-Stars-4-by-Susan-Elizabeth-Phillips.pdf
    • http://kiteeearpdf.myhome.cx/4f219f210f217f216f219/Dream-a-Little-Scream-Dream-Club-Mystery-2-by-Mary-Kennedy.pdf
    • http://kiteeearpdf.myhome.cx/2f212f212f214f215f219/Dream-a-Little-Dream-Chicago-Stars-4-by-Susan-Elizabeth-Phillips.pdf
    • http://kiteeearpdf.myhome.cx/9f216f219f216f216f215/Soar-Despite-Your-Dodo-Sales-Manager-by-Lee-B-Salz.pdf
    • http://kiteeearpdf.myhome.cx/5f216f213f216f216f212/Le-manager-joueur-de-go-by-Jean-Christian-Fauvet.pdf
    • http://kiteeearpdf.myhome.cx/2f211f211f213f214/Dream-Catcher-Dream-Seekers-1-by-Kathleen-Harrington.pdf
    • http://kiteeearpdf.myhome.cx/6f214f218/Dream-a-Little-Dream-The-Silver-Trilogy-1-by-Kerstin-Gier.pdf