MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm used for phishing or malware distribution. The PDF structure and embedded URIs are consistent with techniques used to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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=pubg+apk+beta PDF link annotation
- http://gruaszarate.com/ckfinder/userfiles/files/vujezogemozitezupo.pdfIn PDF document text
- http://veterinariomauracotti.it/userfiles/files/73096503203.pdfIn PDF document text
- http://hulstcustoms.ru/uploads/files/28311867928.pdfIn PDF document text
- http://hotelalbicia.com/userfiles/file/fomenepufuzozozat.pdfIn PDF document text
- http://krishikhabar.net/assets/ckfinder/core/connector/php/uploads/files/95649335050.pdfIn PDF document text
- http://dichvutheapec.com/upload/FCK/file/39129942909.pdfIn PDF document text
- https://kottayammedicalcollege.org/CMS/ckfinder/userfiles/files/duzixupabuvadutatavazekod.pdfIn PDF document text
- https://bunyaminerdemir.com/resimler/files/3091569182.pdfIn PDF document text
- http://goksirkrupskimlyn.pl/img/upload/files/39409459859.pdfIn PDF document text
- https://daquin-ferriere.fr/userfiles/file/tigirabojuvu.pdfIn PDF document text
- http://alfonsoguiggiarchitetto.it/userfiles/files/17513910609.pdfIn PDF document text
- https://rajakeempat.com/contents/files/64882864802.pdfIn PDF document text
- https://uslugiinzynierskie.com/eurostyl/photos/file/86465823629.pdfIn PDF document text
- http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613a20405140d---gususubez.pdfIn PDF document text
- https://gotoko.com/cmsv2/upload/files/3232845191.pdfIn PDF document text
- http://portakalweb.net/home/portakal/public_html/ckfinder/userfiles/files/pinewevulofov.pdfIn PDF document text
- https://bestofbucerias.com/upload/file/tawodivojovigoxiduxuxef.pdfIn PDF document text
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/161349f9106fa1---82363247124.pdfIn PDF document text
- http://sakuragiramenandsushi.com/uploads/files/42937991473.pdfIn PDF document text
- http://studiochiodo.eu/userfiles/files/pajijaroso.pdfIn PDF document text
- http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136185cb902d---tesawazevavipixi.pdfIn PDF document text
- https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/87792683db7e5d1e0a15c720c78dd5a2/xanujajinafofitisupo.pdfIn PDF document text
- https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/374c2a13be844eb7308e01700a198dc0/jujorujibuxeviruna.pdfIn PDF document text
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/bc7a2e69d3276b7309eb0f24cea6bfc0/6026284870.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_off0000d691.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD691 | 10128 bytes |
SHA-256: 5a7d731f66449acec805cb226abe765ced2215ff39f0ea434c5da84f7ce06326 |
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font_01_sfnt_off0000ed23.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED23 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010535.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10535 | 17748 bytes |
SHA-256: 2d28bcbbf44a1248872ead42bc0816fea81739cdc29d3bddbd3fb692f1045087 |
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