MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous links pointing to compromised WordPress sites and other disposable hosting, suggesting a link farm designed to redirect users. The presence of these links indicates an attempt to lead users to malicious content, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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://archism.ru/uplcv?utm_term=livro+pensamento+e+vida+andr%C3%A9+luiz+pdf PDF link annotation
- https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/3cd27599d3afc302dcfb7efb15dc1786/nepuxusatalozizeladen.pdfIn PDF document text
- https://mebelihome.ru/upload_picture/581117003.pdfIn PDF document text
- http://fst-uinsu.net/userfiles/files/wuganoleneludazaru.pdfIn PDF document text
- https://afd.me.uk/wp-content/plugins/super-forms/uploads/php/files/e96lell8r5g43huaiegj8s5um1/losowugij.pdfIn PDF document text
- http://flygarfield.net/userfiles/file/wodibosepamomima.pdfIn PDF document text
- http://villaturri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a728842a30---78093798290.pdfIn PDF document text
- http://seyrimerdin.com/userfiles/file/nerosejukivikokupasazinir.pdfIn PDF document text
- http://zjgjqmr.com/v15/Upload/file/202186548433777.pdfIn PDF document text
- https://eobliecky.sk/userfiles/file/83862062490.pdfIn PDF document text
- http://bearings-home.com/userfiles/file/betukaruviboxaxupabiwusit.pdfIn PDF document text
- https://cosplay-expo.it/ckfinder/userfiles/files/67487399708.pdfIn PDF document text
- http://pahsclassof2005.com/clients/d/d6/d61c4c031b0f3af13d3e88110ef3a3e1/File/gogobaweviron.pdfIn PDF document text
- https://razvozka24.ru/wp-content/plugins/super-forms/uploads/php/files/ad0029c534be041bbbb9827c37ad7750/wepipefux.pdfIn PDF document text
- http://uniroll.pl/user_images/file/65687219493.pdfIn PDF document text
- http://kondicionery-ivanteevka.ru/upload_picture/file/rezufumijejakuwevu.pdfIn PDF document text
- http://metafelix.it/userfiles/files/33332004833.pdfIn PDF document text
- http://petra-dario.info/upload/datoteke/68162460332.pdfIn PDF document text
- https://alkathirilaw.com/userfiles/files/kibumo.pdfIn PDF document text
- http://miracleschoolministries.com/survey/userfiles/files/bakezizozo.pdfIn PDF document text
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/ij4ddl5b6k2356ovp09m5c1q18/buxon.pdfIn PDF document text
- http://malifer.hu/upload/file/gukejetex.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_off0000f66c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF66C | 10996 bytes |
SHA-256: 1e6871aa8f2e1a1bc63b32031ee1e35cf198fa566f58dc7420873afe7cbb88b6 |
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font_01_sfnt_off00010fb0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FB0 | 19852 bytes |
SHA-256: 2831aa9ecc691a5fa97f346cf153c990d5aadcba5126a95875a6621433e772a2 |
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font_02_sfnt_off00014057.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14057 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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