MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external URLs, many hosted on compromised or disposable domains, suggesting a link farm designed to redirect users to malicious sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The presence of multiple PDF-specific heuristics related to URI and link farms supports this conclusion.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://oniceh.ru/uplcv?utm_term=aptitude+test+papers+of+infosys+pdf PDF link annotation
- http://banquat.com/userfiles/files/nilizodebirezonixezazabos.pdfIn PDF document text
- http://smart.sut.ac.th/tsme/src/lib/ckfinder/userfiles/files/91120959998.pdfIn PDF document text
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1611e6c34c07e2---48021720624.pdfIn PDF document text
- http://wmhsclassof1977.com/clients/34196/File/22172441551.pdfIn PDF document text
- https://classykitchen.pl/web/uploads/files/34683638174.pdfIn PDF document text
- http://slstudio.it/userfiles/files/jumutidefekojatorifiwexi.pdfIn PDF document text
- https://alrukn.co/userfiles/files/28319353555.pdfIn PDF document text
- http://homeopathyhk.com/files/wupuferinupoki.pdfIn PDF document text
- http://tonwen.org/userfiles/file/9145266972.pdfIn PDF document text
- https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/srrnf232s40pffrj45088a91d6/rimoninevixixonazezuxupe.pdfIn PDF document text
- http://accessiblevehicleservices.com/userfiles/file/muwebakemoraj.pdfIn PDF document text
- http://hillsdale66ersreunion.com/clients/c/c6/c679c52642bc64dd8629b98fb95ccc77/File/bisazekiwe.pdfIn PDF document text
- http://4els.ru/uploads/images/files/nexinatijikig.pdfIn PDF document text
- https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b8090d3bae---33411585906.pdfIn PDF document text
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16125565fd77e2---4408565149.pdfIn PDF document text
- https://mldom.xyz/web/img/podborky/files/11547474405.pdfIn PDF document text
- http://alnoorcity.com/userfiles/file/zifinaweforabejafazeb.pdfIn PDF document text
- https://skazkavdom.com/wp-content/plugins/super-forms/uploads/php/files/fa187faf7734f06620882172544d2575/lowufolilawudomobon.pdfIn PDF document text
- https://godahoian.com/app/webroot/upload/files/gakakatobomad.pdfIn PDF document text
- http://belean.pl/userfiles/file/wagikunisepa.pdfIn PDF document text
- https://www.picmephotoboothhire.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b9071991d00---varesalotowiba.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_off0000d385.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD385 | 18484 bytes |
SHA-256: 0b44eb40a2edbbf07dab0fa51e8efa3f75d816a8a80cb92dedf8ac1bfaa1f948 |
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font_01_sfnt_off00010366.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10366 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011b7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B7D | 10640 bytes |
SHA-256: deaa01a087268e39576c4195334c569cba92e00b8c7e29015bc73aef2b693cd6 |
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