MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1055.012 Process Injection
T1204.002 Malicious Link
This PDF file was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a link farm. It contains numerous external URIs, many pointing to compromised WordPress sites, suggesting an attempt to lure users to malicious content. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://laborke.ru/uplcv?utm_term=imagenes+de+cumplea%C3%B1os+para+la+madre+de+mis+hijos PDF link annotation
- https://southtours.com/wp-content/plugins/super-forms/uploads/php/files/33kh9slj75iieo2jucil4kmm67/dodefurujidopofukilaben.pdfIn PDF document text
- http://homeopathyhongkong.org/files/8340964781.pdfIn PDF document text
- http://tandprotheses.com/ckfinder/userfiles/files/vusupigajaso.pdfIn PDF document text
- http://driver-jazda.pl/upload/file/zetobufiwi.pdfIn PDF document text
- http://showpalmedical.com/userfiles/xatar.pdfIn PDF document text
- https://familienbilstrup.dk/ckfinder/userfiles/files/34497951047.pdfIn PDF document text
- http://alexandraharris.com/clients/36054/File/10888985329.pdfIn PDF document text
- https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/1feu4hmnsu9hjct84h8748cm3h/tiwutukidurakete.pdfIn PDF document text
- http://business-plan-capalpha.fr/mbp/upload/images/images/upload/ckfinder/zozulalotekubafo.pdfIn PDF document text
- https://tedvandergulik.nl/userimages/file/nixopatezelafaluxeduk.pdfIn PDF document text
- http://global-insurance-broker.de/downloads/65063123757.pdfIn PDF document text
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c850c3049fe---tazapupomuwikax.pdfIn PDF document text
- https://elegune.net/files/galeria/files/latipuxutefagejesa.pdfIn PDF document text
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/ce1297c019c85a95da5d33d937037794/golidetuwadojowuvutadum.pdfIn PDF document text
- https://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/2ae0d9754560ca292b09e341acf4557e/vozerupelamomaripafar.pdfIn PDF document text
- https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/623c8b210ef49f825f11ba6e3c7cb9fb/rujafakuxaraxegavu.pdfIn PDF document text
- https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/a1a2cf0ab3e10904b19f3f22ac17575f/jazisunodowekabebisoduw.pdfIn PDF document text
- http://nsdadventist.org/FCKData/file/venibexew.pdfIn PDF document text
- http://www.anjhimayath.com/upload/file/85293088789.pdfIn PDF document text
- http://smclassof57.org/clients/34860/File/5674895988.pdfIn PDF document text
- http://netflor.pl/upload/File/58258892507.pdfIn PDF document text
- https://vishalahospitality.com/ckfinder/userfiles/files/51851426544.pdfIn PDF document text
- http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/160e4cc68bb64a---mapuraro.pdfIn PDF document text
- http://termocity.by/pics/files/84816871315.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_off0000ef13.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF13 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001072a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1072A | 11252 bytes |
SHA-256: bcd156cb8406a9a883eeb1c1aec3267526328b4fb91b512ac74c9206e3381d28 |
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font_02_sfnt_off000120bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120BF | 16952 bytes |
SHA-256: eb52a0d1d8ee638730b04db92d02dd294920c67326baf3360fe864e05a90fca4 |
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