MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm pointing to numerous compromised WordPress sites, likely intended to host and distribute further malicious content. Heuristics indicate a high likelihood of phishing and malicious intent, with ClamAV detecting it as 'Pdf.Phishing.Trojan'. The document body is heavily obfuscated and appears to be a byproduct of the wkhtmltopdf tool, offering no direct user-facing content but confirming the file's nature as a container for malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://csom.cz/wp-content/plugins/super-forms/uploads/php/files/7e4acbd4f51e16c7d29dcbba250623ab/33713402854.pdf
- http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607eae498f210---katafanofosino.pdf
- https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/e86efa0f15a017f69a4457dae928d485/furogolekujolurud.pdf
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/160b283bc2ee41---faruzafafeperemin.pdf
- https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/46d95c588787e1550ccda3e207c729d3/24079418062.pdf
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca0baa97ae---3289064242.pdf
- http://alhouti.com/userfiles/file/22090662309.pdf
- https://traveltokiev.com/wp-content/plugins/super-forms/uploads/php/files/5k3v62hmqb4npmigadinkd7as7/53585832592.pdf
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/5bc18539b7e2be42dc5bb5954fbd7580/newerenawoledakotaropof.pdf
- https://airshow-bg.com/file/dopevabijikukapozad.pdf
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16094cd72cf9e1---tokadeg.pdf
- http://yokohama-model.com/userfiles/files/5192900361.pdf
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160878a936a00d---widezekizusutire.pdf
- https://mebelihome.ru/upload_picture/kuzabumafobabosolovumog.pdf
- http://cricalliance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0aa5a85ca1---zuvinuraku.pdf
- https://www.analfissur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079bc5871b9c---75447137177.pdf
- https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/f2f3752b5d2fd12588f9c02105fb520b/vaxil.pdf
- https://yepsell.com/userfiles/files/xavazumaxulud.pdf
- https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/lfghlqtdr65h4be7979p2taa64/gibinepaborugifoterexogok.pdf
- http://mid-europe-ex.com/images/blog//file/kilinapute.pdf
- https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/df8c9c123d069b2677ddb0c5cc38a124/21641145408.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=minecraft+for+beginners+book+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_off0000ea86.bin848569e9dac440f842979337813f72e38795d6d2a90f7469ff25c920cc4cc777 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA86 | 16768 bytes |
font_01_sfnt_off00011606.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11606 | 16792 bytes |
font_02_sfnt_off00012e1d.binffb68e05c0fd81d0aae8055000801151bffd9d507bb0bd9c5d52070694635cce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E1D | 10976 bytes |
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