MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous URLs pointing to compromised WordPress sites and other domains, suggesting it functions as a link farm or phishing lure. The presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this, indicating the document's primary purpose is to redirect users to external, potentially harmful, websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://krisoc.ru/uplcv?utm_term=b%26k+2260+investigator+manual PDF link annotation
- https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/ce8c4201ed12167a801de705616154aa/biladufij.pdfIn PDF document text
- https://adamant54.ru/userfiles/files/94164712185.pdfIn PDF document text
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fa12d3560d---biwixilin.pdfIn PDF document text
- http://pronobile.de/catalog/file/kepimagovefamixagowipe.pdfIn PDF document text
- https://premium-house.uz/images/file/82991896346.pdfIn PDF document text
- https://harmony-lazienka.pl/Upload/file/xogaxit.pdfIn PDF document text
- http://marathon-gexin.com/Uploadfiles/files/notulitoxugubomap.pdfIn PDF document text
- https://fl-forever.com/upfiles/editor/files/14317688871.pdfIn PDF document text
- http://alexandercdg.com/clients/36029/File/22811541298.pdfIn PDF document text
- https://volpatoebrum.com.br/_common/admin/scripts/ckfinder/userfiles/files/15279588334.pdfIn PDF document text
- https://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/64218cabc409512d3638f88fdd110aa7/bosifekixunavajom.pdfIn PDF document text
- https://bhandarisurgical.com/ckfinder/userfiles/files/lipudakuxusi.pdfIn PDF document text
- https://nsck-cykelmotion.dk/userfiles/file/16195607702.pdfIn PDF document text
- http://maslag.eu/userfiles/file/xaxok.pdfIn PDF document text
- http://uci.ir/userfiles/file/50542108895.pdfIn PDF document text
- https://sunrise-photon.com/upfiles/editor/files/zexopogo.pdfIn PDF document text
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a06cf44db9f---77873992513.pdfIn PDF document text
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/2cb9c5921eed60ccd88890ea6a5e8abf/voreburakulibadoserin.pdfIn PDF document text
- http://www.77ice.com/upload/files/41572773777.pdfIn PDF document text
- https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/da6f743abf6ce144abfabedef5908b08/78915463132.pdfIn PDF document text
- http://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/1608f48d4c0911---27423789027.pdfIn PDF document text
- http://euro-ex.com/images/blog/file/10933776716.pdfIn PDF document text
- http://www.ecvbrass.ch/user/web/file/moporugigozexoxa.pdfIn PDF document text
- https://mygamedaysports.com/wp-content/plugins/super-forms/uploads/php/files/bad4c7c072ed19575b0b7e36689ee8ee/27481598190.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_off0000d2f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2F0 | 9128 bytes |
SHA-256: a94e7c4bc6a6ec13eaacac02e453193837cbd1f0e65c364a24fe4b77030717c2 |
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font_01_sfnt_off0000e5db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5DB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fded.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDED | 23112 bytes |
SHA-256: 200044165c5789f0641fc52979c836bb919d50cd8de7e9492248f95bc5576c3a |
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