MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs pointing to compromised CMS upload directories, indicating it functions as a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to redirect users to phishing sites or download further malware. The presence of a 'download' button lure reinforces this malicious workflow.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=five+nights+at+freddy%27s+4+halloween+edition PDF link annotation
- https://bauarch.bg/files/xipakejaxabex.pdfIn PDF document text
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160767d0d468a2---49361935802.pdfIn PDF document text
- http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/ebfc6887b509236ecc04d457a2be88d1/jumoxazitanazar.pdfIn PDF document text
- https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160a2da61124f7---57242622356.pdfIn PDF document text
- http://kidneytexas.org/clients/861060/File/wopusitemikixa.pdfIn PDF document text
- http://gingerbreadvillage.org/clients/e/e3/e396b250b60561adcb946853f9f62e29/File/bagowizorus.pdfIn PDF document text
- https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609b1c29bef6e---88725255628.pdfIn PDF document text
- https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/bdd3038947f934b71fcd5832fb12cd1b/36183901686.pdfIn PDF document text
- https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/dg2nbu3iqennl6s97tnopkeivv/kujiwudozijovororod.pdfIn PDF document text
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609dfedb92b48---zelimokonabuwosifovivam.pdfIn PDF document text
- https://numen-wow.com/userfiles/cloud//files/vekekefepopopifun.pdfIn PDF document text
- https://jollytime.ru/wp-content/plugins/super-forms/uploads/php/files/250e914a8dfab1cb12328426478a5985/51576712804.pdfIn PDF document text
- https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/b495d54c1f9c57b9fca10a7fdfeb68f1/wozetufit.pdfIn PDF document text
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160825b55ea953---jofiwenofibim.pdfIn PDF document text
- http://tasteofruraleurope.eu/upload/File/gananetabefojitop.pdfIn PDF document text
- http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160bb294a1c758---dimileweret.pdfIn PDF document text
- http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/109c4bddd1545d388aeaae3780cc0dfc/90041452237.pdfIn PDF document text
- http://busanpc1.com/upload/fckeditor/file/12329675224.pdfIn PDF document text
- https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/sprlkiqvrj5v4uitq4fiqkig0p/letedikobubabiwalalubik.pdfIn PDF document text
- http://www.centralperdana.com/file/61202150796.pdfIn PDF document text
- https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/9468rrd7s7vm6ce6bcbli5mnfe/22351734815.pdfIn PDF document text
- http://ohappy.org/userData/board/file/63595637270.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000da3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA3F | 10988 bytes |
SHA-256: 1fdc3384a406ff0e5089ac9c702ba14305912a3b845390b5ad90d47a184f522e |
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font_01_sfnt_off0000f3a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3A3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010bb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BB5 | 17824 bytes |
SHA-256: 9387359890785c76b64b89159f01976fac8f14e025f093c35736ea09da25c6ad |
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