MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious. It contains numerous embedded URLs, many of which point to compromised WordPress sites or are part of a link farm designed to obscure the ultimate destination. The primary function appears to be directing users to potentially malicious external content, consistent with phishing or malware distribution tactics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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 http://probeg2000.ru/files/userfiles/files/wofunaseron.pdf In PDF document text
- http://www.themixchange.com/userfiles/files/povuj.pdfIn PDF document text
- https://petribax.nl/userfiles/file/fekurema.pdfIn PDF document text
- http://rbc-bezorgdiensten.nl/upload/61899627751.pdfIn PDF document text
- http://vdadanang.vn/app/webroot/assets/files/96268225271.pdfIn PDF document text
- https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/o7nb3at1bm722djsr6pu8qeggo/30750886065.pdfIn PDF document text
- https://nomortiga.com/contents/files/67300250821.pdfIn PDF document text
- http://anm-av.de/uploads/files/kirobo.pdfIn PDF document text
- http://rickgrisolia.com/userfiles/files/karixowopojifimage.pdfIn PDF document text
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/3s10afkoquplg71f2fl3o5m9k0/78856672905.pdfIn PDF document text
- http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143a21f0316e---36670144170.pdfIn PDF document text
- http://doingthing.com/downloads/blog/geust/files/86058128297.pdfIn PDF document text
- http://xn--rssx31a7tec6p.com/upload/userfiles/files/20210916003134.pdfIn PDF document text
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16132081358076---22539030478.pdfIn PDF document text
- https://agrocare.ro/ckfinder/userfiles/files/lefujugazizapet.pdfIn PDF document text
- http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16133b1c32541e---20767400522.pdfIn PDF document text
- http://mya1fc.com/files/ckuploads/files/92597207707.pdfIn PDF document text
- http://www.gamylai.vn/uploads/files/vovelo.pdfIn PDF document text
- http://rudolphi.nu/userfiles/file/tupizesudoziximizapamu.pdfIn PDF document text
- https://nada70.org/userfiles/file/xipirozoko.pdfIn PDF document text
- https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16140edb9bc38d---loxuguwisajodelutemesak.pdfIn PDF document text
- http://novosib-sport.ru/ckfinder/userfiles/files/34440471090.pdfIn PDF document text
- https://whatshoulditcostme.com/userfiles/file/48130511601.pdfIn PDF document text
- http://netmode.net/app/webroot/uploads/files/tosapurobokumepozor.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=programa+para+ver+videos+en+celular+androidPDF 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_off0000b0f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0F4 | 10928 bytes |
SHA-256: 7d96de7a6dd66abd8d90b999f6f115ce8bb1170c36e60d93dc9bf51ee101efdc |
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font_01_sfnt_off0000ca09.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA09 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e21b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE21B | 17228 bytes |
SHA-256: 3561831a88e87dd3340a853c58523d830ac25c0ab10f943e5046b74e67a38af0 |
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