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 of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://allytemp.ru/uplcv?utm_term=high+frequency+phrasal+verbs PDF link annotation
- http://perksys.com/userfiles/file/zokojiwigadedidox.pdfIn PDF document text
- http://perksys.com/userfiles/file/didixaxitogalofalobetowa.pdfIn PDF document text
- https://thefertilizergranulator.com/d/files/54165504273.pdfIn PDF document text
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1615f80c577358---54533135511.pdfIn PDF document text
- http://inimtrento.it/userfiles/files/59634855319.pdfIn PDF document text
- https://bearings.vn/images/ckeditor/files/37153639522.pdfIn PDF document text
- http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/161523d15a7135---risemeguwegazam.pdfIn PDF document text
- http://colegiosantarosa.com/uploads/imagem/file/48837921110.pdfIn PDF document text
- http://diskacme.dk/images/upload/file/demojisidavidagidoxamu.pdfIn PDF document text
- http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161642f1372bea---67913338444.pdfIn PDF document text
- http://ruresept.ru/files/file/94298917993.pdfIn PDF document text
- http://jatechkj.pl/upload/fck/file/66676144406.pdfIn PDF document text
- https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16160d1dcf2b72---dukujulojodatexara.pdfIn PDF document text
- https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/dace5111ded9d177ce59edb2753c9192/juwugawowujukijawemof.pdfIn PDF document text
- http://syuncyoku.jp/upload/file/nigalisu.pdfIn PDF document text
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/161418f2adf290---57807526218.pdfIn PDF document text
- https://www.le-domaine-de-hauterive.fr/ckfinder/userfiles/files/gogukeduxomazuru.pdfIn PDF document text
- https://healthlantern.com/ckeditor/ckfinder/userfiles/files/japenutoko.pdfIn PDF document text
- https://apexsafetyproducts.com/ckfinder/userfiles/files/velazo.pdfIn PDF document text
- https://zifu-tech.com/app/webroot/userfiles/files/witudigama.pdfIn PDF document text
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/5jndo0q0u5pu9begmd8sg93ro5/bupuzovajuxufugisukiw.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_off0001188d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1188D | 11100 bytes |
SHA-256: 54bf76bc39bd940ea438543542d22df3c0e158e6499f885a2c70912f61b00937 |
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font_01_sfnt_off000131cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131CD | 21700 bytes |
SHA-256: 8bc65f34bb9146435e952c0037379bbb7c5c357d2e7df793998256ce2396ede1 |
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font_02_sfnt_off00016ad5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16AD5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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