MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to distribute malicious content or phish users. The document body is unreadable, but the heuristics and URLs strongly indicate a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 6
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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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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://esoftland.com/userfiles/file/2312653181.pdf In PDF document text
- http://stonestudio.pl/files/upload/file/gujogifivowigubox.pdfIn PDF document text
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608f02e479489---vujazonajo.pdfIn PDF document text
- https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16071bc6a9972d---ranizaxeluxija.pdfIn PDF document text
- https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/56ad2d8584d68570d031b8e5a813d81e/48878656835.pdfIn PDF document text
- http://urduhadith.org/survey/userfiles/files/muvegojirewibixifijo.pdfIn PDF document text
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085694e91837---58381977836.pdfIn PDF document text
- http://vandervalk.reviews/app/webroot/files/userfiles/files/25409220630.pdfIn PDF document text
- http://chelseafoodmart.com/uploads/files/53762669384.pdfIn PDF document text
- https://acrgroup.nl/userfiles/file/9959742351.pdfIn PDF document text
- https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a41b32bb3c0---32842486978.pdfIn PDF document text
- http://galettedesrois.hu/userfiles/file/36167660526.pdfIn PDF document text
- https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/n895tfnfc5b17aic6n55lg7aeq/nosudaperupi.pdfIn PDF document text
- http://robertoantoniz.com/resources/original/file/26312752932.pdfIn PDF document text
- https://arbormaster.net/uploads/files/zovufij.pdfIn PDF document text
- https://himalayanwanderer.com/himalayan/userfiles/files/jejito.pdfIn PDF document text
- http://pkynfe.net/userfiles/file/jexikikigused.pdfIn PDF document text
- https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/65ea67a05813ae63cb9e6b07edf9ac86/ronupixivigikepezudar.pdfIn PDF document text
- https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/121f010413d2282452e246e279221330/94583078339.pdfIn PDF document text
- http://www.brickchamber.com/ckfinder/userfiles/files/jofojid.pdfIn PDF document text
- https://luxmarketing.agency/wp-content/plugins/super-forms/uploads/php/files/s1rpk7hrbkik68v385e57p1r9c/36402676877.pdfIn PDF document text
- https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607eba3c13357---lekumezeteze.pdfIn PDF document text
- http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607fcdbc7d1a4---birekanafiperemuk.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=principles+of+human+anatomy+and+physiology+tortora+12th+edition+pdfPDF link annotation
- 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_off0000c042.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC042 | 16156 bytes |
SHA-256: 38553d15c79edf912a8584066a78775305bd8e21d52e8255da97520d0900cc19 |
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font_01_sfnt_off0000e9cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9CF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000101e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101E6 | 11452 bytes |
SHA-256: 04b2bbf624977b25193becd9270ab1b47cd4a257125c9b3079d5a4b556188402 |
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