MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs pointing to compromised WordPress sites and other domains, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest this PDF is malicious, likely serving as a lure for phishing or malware delivery. No scripts were extracted, but the structure and URL patterns are indicative of a malicious campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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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 https://crysiq.ru/uplcv?utm_term=zac+brown+band+and+shawn+mendes
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160b16e9cce30f---58382668424.pdf
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bccac3c593a---xutod.pdf
- http://jingluo.net/uploadfiles/files/jolomawefemubufemotidaja.pdf
- https://bobecoingatlan.com/uploads/editor/file/93095342845.pdf
- http://ettermanenterprises.com/ckfinder/userfiles/files/48924789959.pdf
- http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab50e08fbeb---94226777580.pdf
- http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/d060a39c991fb74d32f5600b63c7b720/85594845400.pdf
- https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/e39c7916d204f237a6902270b38c0991/79411066928.pdf
- http://skonasystems.com/userfiles/file/papodenubufu.pdf
- http://banglenhospital.com/UserFiles/File/63543541336.pdf
- https://bikinibody.be/wp-content/plugins/super-forms/uploads/php/files/d04f0nuuravbbj45mkhu0pc885/jinoxejevew.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607eff54db4c9---ludipuwafetimivopoxaga.pdf
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/16072563f79516---tidegemetezozomeluwawot.pdf
- https://laser-arena.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1608475d3bb2fd---95483734562.pdf
- http://austria-ex.com/images/blog//file/8698746796.pdf
- https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/0df586797f479de5993b53e4611b93f3/40337912811.pdf
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ee145bceac.pdf
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/59c025cadc0e4d1c28c32a44a87d456d/wibivujuxuxigokola.pdf
- https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/5c2bc7b0c47ddc1eaab2b9098962b26d/51993545292.pdf
- https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/68uo9pn0pnf7n2h8rcodu30ob8/wisonatudubizimo.pdf
- https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b83bdb31eda---50221167150.pdf
- https://dolmalatrek.com/userfiles/file/fakisidekexaxigaf.pdf
- 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_off0000f39f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF39F | 16792 bytes |
font_01_sfnt_off00010bb6.binffe5eeb7e6d9d349718e57bf722d29ed65e9275a2fe94e329f5ba6d6544cb25f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BB6 | 10588 bytes |
font_02_sfnt_off000123c7.bin7bc69ba62a0e47de15b3f51ac0eb6a3e80ed93fbcd216c82f2366619daaf2f65 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123C7 | 17896 bytes |
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