MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many pointing to compromised or disposable hosting, indicating a link farm designed to lure users to malicious sites. ClamAV and ML classifiers flagged this PDF as malicious, specifically as a phishing trojan. The presence of external URIs and link farms suggests an attempt to redirect users for potential phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9905
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://synerhu.ru/uplcv?utm_term=exterior+angle+theorem+worksheet+math+aids+answers PDF link annotation
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/16082b149db9cd---mobakirod.pdfIn PDF document text
- http://imi.vc/upload/files/3135926828.pdfIn PDF document text
- http://quiltingacademy.info/fckeditor/userfiles/file/fowupovesokasonipokij.pdfIn PDF document text
- https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/1609a73280a20f---48263264117.pdfIn PDF document text
- http://sgd42.ru/userfiles/file/sakinuriman.pdfIn PDF document text
- https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/50a28e463717ec3f53edf911997b5020/91916300200.pdfIn PDF document text
- http://tort-art.ru/userfiles/file/39044677616.pdfIn PDF document text
- https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/iud9id9h72gu7pdkjp0f7icd82/80977921594.pdfIn PDF document text
- https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607b218367f16---61492185746.pdfIn PDF document text
- https://ildiko-szepsegszalon.hu/userfiles/file/30580399962.pdfIn PDF document text
- https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/uhsl4lleh818mssctk38h75thg/retulexelug.pdfIn PDF document text
- http://accronline.com/userfiles/file/nivudaluwurogibojivaditu.pdfIn PDF document text
- https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/ce304864f8770c7c35cd7d5df2744120/ruzitasukokafivinerosif.pdfIn PDF document text
- https://www.pennlighting.com/wp-content/plugins/super-forms/uploads/php/files/7b62da8bb28dcf711235c5df4ee364af/47410159096.pdfIn PDF document text
- http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ba5203466fb---lanirawafatapepezamisapo.pdfIn PDF document text
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d47dc844e9---jojijujaxoxexegujukulum.pdfIn PDF document text
- http://baltic-rt.ru/ckfinder/userfiles/files/26462881805.pdfIn PDF document text
- http://firegallery.ru/img/upload/30903469033.pdfIn PDF document text
- https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/a5v2u9ng54q9vn82473qf79nf6/5077170241.pdfIn PDF document text
- https://bursakaynak.com/userfiles/file/wafuvikinafibovisubimejo.pdfIn PDF document text
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a10b5be42c2---patotixizipitozuto.pdfIn PDF document text
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160d381cf43dec---wikapa.pdfIn PDF document text
- https://martybermanassociates.com/wp-content/plugins/super-forms/uploads/php/files/715502627e24493e66ddb1d6d9e6aeed/nebediw.pdfIn PDF document text
- http://bakkervoorwinde.nl/app/webroot/files/ckeditor_files/files/sivavigixo.pdfIn PDF document text
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608d0f3926b34---15029076895.pdfIn PDF document text
- https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609863ede74b4---96260396565.pdfIn PDF document text
- http://tlumacz-lipno.pl/pdrzewiecki/files/ripusevifelikedezazeg.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_off0000f4bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4BD | 16852 bytes |
SHA-256: 837805a443bf271ecf149768fc85e97363fa1add65c83544831e85e6fb01a573 |
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font_01_sfnt_off000120a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120A6 | 10956 bytes |
SHA-256: 2414ccbde9d21487805b4b09f5836b4b41432a094d5fa14a4f31757bda5247ad |
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font_02_sfnt_off000139b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x139B9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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