MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ClamAV and an ML classifier, with heuristics indicating it functions as a link farm. Multiple URLs extracted from the PDF point to compromised CMS uploads and disposable hosting, suggesting an attempt to distribute malicious content or phish users. The presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics strongly supports this attack pattern.
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://allytemp.ru/uplcv?utm_term=five+and+dime+ale+house PDF link annotation
- https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16095456e9eb55---47303892916.pdfIn PDF document text
- https://cal.lighting/wp-content/plugins/super-forms/uploads/php/files/d266219585eccc101de9a71f2dc7aa57/xepifivevarezud.pdfIn PDF document text
- https://arenda1s.ru/wp-content/plugins/super-forms/uploads/php/files/a07805390c76afd9d573e11216e6da60/27307019803.pdfIn PDF document text
- https://simon-daulte.com/ckfinder/userfiles/files/wajekesufolem.pdfIn PDF document text
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c24906265f8---2808833001.pdfIn PDF document text
- https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1609f484f102ed---lexakowalavud.pdfIn PDF document text
- https://kalyna.ua/sites/default/files/userfiles/file/11349344999.pdfIn PDF document text
- http://phunggia.biz/userfiles/file/27455216561.pdfIn PDF document text
- http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160cb51a956cf9---datotepekefemasazubosa.pdfIn PDF document text
- https://netshopnepal.com/userfiles/file/nilefexesegeno.pdfIn PDF document text
- https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607eac713bec1---detizid.pdfIn PDF document text
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076e3f91199f---fejosujo.pdfIn PDF document text
- http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6e32909e33---xiwotita.pdfIn PDF document text
- https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/c809ac84d19efe20b6724932de7c8ea5/vekitesufulakerego.pdfIn PDF document text
- https://genesislighting.net/wp-content/plugins/super-forms/uploads/php/files/12682fb6172e1cbf559b876bbee2bed8/31587877245.pdfIn PDF document text
- http://capmar.eu/userfiles/file/54513423915.pdfIn PDF document text
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607935ad30d6c---muvazimowuzonisule.pdfIn PDF document text
- http://coffee33.ru/archive/file/kufetutilatimopibese.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_off0000da17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA17 | 16872 bytes |
SHA-256: dc819af49f62e53982afdb231011f5b28c0e90ef622b6703a01b4626d4d51a89 |
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font_01_sfnt_off0001063c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1063C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011e53.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E53 | 10456 bytes |
SHA-256: 28b2296e38aeec9a1f953995db42a7879c5532f776f7b37dc4eb21984bbb4652 |
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