MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample is a PDF file identified as malicious by a ClamAV detection and an ML classifier. It contains numerous embedded URLs, many of which point to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of a 'download button' heuristic further supports the lure-based nature of this document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9934
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://philabc.ru/uplcv?utm_term=organic+chemistry+by+solomons+and+fryhle+pdf
- https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/ql4c0qe4sfdno3b9gijfscvd8j/xosuzuximofadukegiwalav.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084e51d2dea4---12608131778.pdf
- http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/7e062a0e357487b59cf866d01cf40a2f/binipugaxatarunolux.pdf
- http://thepokewave.com/uploads/files/8348266218.pdf
- https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/9d514d4abb156f4a350ed2078689ab7a/37318304956.pdf
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607f087671f81---palazilotajimure.pdf
- https://tl-systems.hu/files/files/xewadobotuwekutew.pdf
- https://primer-spb.ru/files/files/polubulenugopig.pdf
- https://amirep.com/wp-content/plugins/super-forms/uploads/php/files/c9302467932ec08ba287211d67299d68/46804152537.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160956e3194ef2---37000230379.pdf
- https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/9jtdtqg63kl3trhuu7gcc67337/44279622902.pdf
- https://actorconseil.com/files/file/kuvow.pdf
- http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160a96cd7cbbe2---kodurobebizuvepapu.pdf
- https://sgdivorcelawyers.com/wp-content/plugins/super-forms/uploads/php/files/dd36bbe34deef393cf8f4d13cefd6936/8065150436.pdf
- https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0af3b4542c---14091330293.pdf
- http://hydrem.ru/images/file/labuwojirebu.pdf
- https://narimasu-chintai.net/jcfiles/file/42846709083.pdf
- http://chono.mn/uploads/userfiles/files/romexa.pdf
- http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160db18b86d253---monigewu.pdf
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa0f0e04722---83620835076.pdf
- https://www.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/4ecd5eef511490df9805856ff4207a97/vutujijuloteluvofuz.pdf
- http://adance0112.com/upfile/editor/file/diwelovapotixiruradema.pdf
- https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/5e1f637833146c2e892010b5d4fcc880/melorabenatoxopono.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_off000128b9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128B9 | 16792 bytes |
font_01_sfnt_off000140cb.bin1d6c7cfc421e8fe998b871044f051957f10dacc62956aceb965a21f25e43edb0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x140CB | 18392 bytes |
font_02_sfnt_off0001711a.bina46bb287119937b802f29fb30992e6390dc8fada9f3848d8bb852b7caa29f490 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1711A | 11344 bytes |
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