MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains numerous links, many pointing to compromised WordPress upload directories and disposable hosting. The heuristic firings indicate a link farm designed to redirect users to potentially malicious content. While no scripts were explicitly extracted, the nature of the links suggests an attempt to deliver a second-stage payload or phish for information.
Machine Learning
- Nyx PDF Classifier suspicious score 0.4578
Heuristics 5
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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Embedded URL info EMBEDDED_URLOne 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 https://krisoc.ru/uplcv?utm_term=how+many+ribs+do+babies+have PDF link annotation
- http://tnslib.su/userfiles/files/tedarivirefidazirufidida.pdfIn PDF document text
- https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/54ccfdd9d562a5a618f1ca2cc0319596/ruxojixemorepiwudu.pdfIn PDF document text
- http://bpabv.nl/uploadfiles/file/86503730822.pdfIn PDF document text
- http://joelcsimonesq.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/lumagijodinegokofobodika.pdfIn PDF document text
- http://chiari-web.com/ckfinder/optimist/files/50491700430.pdfIn PDF document text
- https://goldenparadisestsimons.com/wp-content/plugins/super-forms/uploads/php/files/fa207933d22ebff3cf7a14bfc9aba099/99072054514.pdfIn PDF document text
- http://irollee.com/userfiles/file/10572537946.pdfIn PDF document text
- http://daisytalavera.com/userfiles/files/99701717642.pdfIn PDF document text
- http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/160d710808edfd---9224236018.pdfIn PDF document text
- http://asianaccounting.com/admin/fckeditor/userfiles/file/javiwege.pdfIn PDF document text
- https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/b04774356dac306ec7c35de806d2614d/dabupaxof.pdfIn PDF document text
- https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/dafd51bd1929411ea5617cae65ca3f00/lokefudugodoninizuz.pdfIn PDF document text
- https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abb6a9d7937---57718831493.pdfIn PDF document text
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/g087emfbl56hq8ovqblbtup1n6/31485037959.pdfIn PDF document text
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa3d2b81420---16096351664.pdfIn PDF document text
- https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/160a6c6a1da70d---goronajiji.pdfIn PDF document text
- http://www.awakohchang.com/image/upload/File/uvodebevipuwala.pdfIn PDF document text
- https://ukdirectremovals.com/wp-content/plugins/super-forms/uploads/php/files/9fa52ec578d7a868ba1cead5fe5fd1ed/gomabisep.pdfIn PDF document text
- http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afca8434555---81507174981.pdfIn PDF document text
- http://ngocvietbungalow.com/upload/files/gapavuxawutejat.pdfIn PDF document text
- http://www.thaiboat.net/image/upload/File/43557678778.pdfIn PDF document text
- http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/160869125e793d---sataxef.pdfIn PDF document text
- https://pensiuneavalentina.ro/app/webroot/file/jivenufukufosuvogenonib.pdfIn PDF document text
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0b9df4a25e---rebagilofekewadalak.pdfIn PDF document text
- https://noddy.nu/images/file/38666679696.pdfIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f39e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF39E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010bb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BB5 | 10764 bytes |
SHA-256: eb036c0cdca320327efec162d13eb15faced017de108ea6c3529c6385a52a586 |
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