Malicious PDF — malware analysis report

Static analysis result for SHA-256 ead455f653347692…

MALICIOUS

PDF

14.7 KB Created: 2019-05-01 12:01:51 +01:00 Authoring application: mPDF 5.7 First seen: 2021-06-20
MD5: 08a233674b82d25d8c9dcda87c3f577d SHA-1: d3eb18423c393100c7037b1d7de2112e90f8368e SHA-256: ead455f653347692bb44c9e78faa44916d395ab8887ca679f83eadca112b9ad7
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to host further malicious content. The ML classifier also flagged this PDF as malicious. While the URLs themselves are currently marked as benign, the sheer volume and the heuristic firing suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9798

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.4pu.com/7735731733735/Ghost-Layer-Ghost-Seer-2-by-Robin-D-Owens.pdf In PDF document text
    • http://cefasfese.4pu.com/1731738732730732735/Izzy-Spector---Ghost-Detector-The-Ghost-Dog-of-Hill-Road-by-Robert-Spielman.pdfIn PDF document text
    • http://cefasfese.4pu.com/3737735730737732/Ghost-a-la-Mode-A-Ghost-of-Granny-Apples-Mystery-1-by-Sue-Ann-Jaffarian.pdfIn PDF document text
    • http://cefasfese.4pu.com/3736730737737738/Ghost-of-a-Threat-Betty-Boo-Ghost-Hunter-1-by-Beth-Dolgner.pdfIn PDF document text
    • http://cefasfese.4pu.com/3735733737736737/Giving-Up-the-Ghost-Laying-a-Ghost-2-by-Jane-Davitt.pdfIn PDF document text
    • http://cefasfese.4pu.com/3731736739732/The-Ghost-Drum-Ghost-World-1-by-Susan-Price.pdfIn PDF document text
    • http://cefasfese.4pu.com/9734738736732738/Ghost-Coast-Ghost-in-the-Shell-11-by-Masamune-Shirow.pdfIn PDF document text
    • http://cefasfese.4pu.com/2734730730737736/Ghost-in-the-Cowl-Ghost-Exile-1-by-Jonathan-Moeller.pdfIn PDF document text
    • http://cefasfese.4pu.com/2734730730736739/Ghost-in-the-Flames-Ghost-2-by-Jonathan-Moeller.pdfIn PDF document text
    • http://cefasfese.4pu.com/5738738733737739/Ghost-Recon-Tom-Clancy-s-Ghost-Recon-1-by-David-Michaels.pdfIn PDF document text
    • http://cefasfese.4pu.com/5731736736739/Ghost-House-The-Ghost-House-Saga-1-by-Alexandra-Adornetto.pdfIn PDF document text
    • http://cefasfese.4pu.com/3739735733733732/Ghost-Hunt-Vol-9-Ghost-Hunt-9-by-Shiho-Inada.pdfIn PDF document text
    • http://cefasfese.4pu.com/1730731730737734/The-Ghost-Hunters-The-Ghost-Hunters-1-by-Neil-Spring.pdfIn PDF document text
    • http://cefasfese.4pu.com/3735732731732737/Laying-a-Ghost-Laying-a-Ghost-1-by-Jane-Davitt.pdfIn PDF document text
    • http://cefasfese.4pu.com/4732735736734735/Ghost-Hunt-Vol-2-Ghost-Hunt-2-by-Shiho-Inada.pdfIn PDF document text
    • http://cefasfese.4pu.com/9732739735731734/Masterful-Color-Vibrant-Colored-Pencil-Paintings-Layer-by-Layer-by-Arlene-Steinberg.pdfIn PDF document text
    • http://cefasfese.4pu.com/1732733737735736/Hearts-and-Swords-by-Robin-D-Owens.pdfIn PDF document text
    • http://cefasfese.4pu.com/1737736732736737/Enchanted-Ever-After-Mystic-Circle-3-by-Robin-D-Owens.pdfIn PDF document text
    • http://cefasfese.4pu.com/1737736732737738/Enchanted-Again-Mystic-Circle-2-by-Robin-D-Owens.pdfIn PDF document text
    • http://cefasfese.4pu.com/1738734734739737/Heart-Fortune-Celta-s-Heartmates-12-by-Robin-D-Owens.pdfIn PDF document text

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