MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and a significant number of external links, many hosted on compromised WordPress sites. These links likely serve as a link farm to redirect users to malicious content, such as phishing pages or exploit kits. The ClamAV detection and ML classifier strongly indicate malicious intent, consistent with a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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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 http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/25a181437759b2f27208488a5849365b/wufanegirutevovagebu.pdf
- https://arizonalightingsales.com/wp-content/plugins/super-forms/uploads/php/files/7bd17eda8f6a2b4f744119617eab1ed3/26914257538.pdf
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071a0b736fce---tonelebatepolamer.pdf
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160985c18d69cf---62553521504.pdf
- http://am-assets.com/aom/magnolia/userfiles/file/nororenapoditat.pdf
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16076e19d1cd4a---79922488665.pdf
- http://anatolianlgs.com/userfiles/file/pizimesutadeziteneg.pdf
- http://maduraicaterers.com/app/webroot/js/ckfinder/userfiles/files/13084735789.pdf
- https://gradeagroup.com/wp-content/plugins/super-forms/uploads/php/files/7727p5s8eva1q721l0e0uiaa4u/65069417603.pdf
- https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba36bf84aeb---zitaxusarogubej.pdf
- http://saokienviet.com/uploads/image/files/84003266295.pdf
- https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/5777dccca2575116b982f90f4ba05cde/81294792545.pdf
- https://valserve.in/web/k/main_admin/ckfinder/userfiles/files/34160727881.pdf
- http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160adb1578617e---zubag.pdf
- https://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160980c4be15ae---lulibobek.pdf
- http://mpti.ru/userfiles/file/54285797535.pdf
- http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083e6e43ea2c---9739818931.pdf
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/16091d8ce2ec3a---rotog.pdf
- https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/3845438nlfkccpo9ugam59h2ur/lepowugajewa.pdf
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9b1d83be66---wasogixuv.pdf
- http://beijingbeat.com/contents//files/57160766278.pdf
- http://www.orhancoskun.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079009208641---tasilenirojagarizumaja.pdf
- https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/gqvpa76sg0f1dbmoghn4kr6loo/93946847771.pdf
- https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/16081cc02c4c68---butolukakokimelapasizeguf.pdf
- http://fairway.cc/images/blog//file/60305512918.pdf
- http://birons.net/wp-content/plugins/super-forms/uploads/php/files/0c4bffe5daaf99f15c526609be9fc0ac/16405265934.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=standing+cable+tricep+extension
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e76a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE76A | 16792 bytes |
font_01_sfnt_off0000ff7c.bin3389a65e866b8e28fa13a02b90d06c609c9199299957c38d454319eada7d6776 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF7C | 16872 bytes |
font_02_sfnt_off00012b79.bin47f9946c3d8c46e1adbb12d2c8317033e7cb67daac9c9865bb0ef4533e1cbed9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B79 | 11008 bytes |
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