MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically identified as a phishing trojan. The document's structure suggests it's designed to lure users into clicking these links, potentially leading to further compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
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://archism.ru/uplcv?utm_term=android+for+iphone PDF link annotation
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/9ldg6hiarvn11q90jbb9qb2p16/14556498697.pdfIn PDF document text
- https://frisch.ro/files/file/67911692478.pdfIn PDF document text
- http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/161340f2e9ef2b---mimiwivij.pdfIn PDF document text
- http://tks-forever.com/upload/2021/09/11/file/xizadekogugopazazu.pdfIn PDF document text
- https://cytokin.ca/upload/editor/file/nisigubozojumoxawi.pdfIn PDF document text
- https://aquafilling.com/userfiles/file/40013616699.pdfIn PDF document text
- http://guides2alpes.fr/uploads/file/51840409862.pdfIn PDF document text
- http://saxonrt.hu/img/userfiles/files/gaxitoluxigewokebu.pdfIn PDF document text
- http://tatnhapkhau.com/ckfinder/userfiles/files/71500120221.pdfIn PDF document text
- http://shendaoguoji.com/data/attachment/file/nesebesa.pdfIn PDF document text
- http://vuason.vn/upload/files/60267761080.pdfIn PDF document text
- https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/hb7prsoot6snbci1drbdvuijha/30854348975.pdfIn PDF document text
- https://mimpiindah2.com/contents/files/6146268584.pdfIn PDF document text
- https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/16136fe8901423---wujarataladufeb.pdfIn PDF document text
- http://drigungkagyurinchenpalbarling.org/upload/userfiles/files/xotisowejusugodapedodepo.pdfIn PDF document text
- http://lubrifianti-auto.ro/files/file/nuvapimovurexaxukegita.pdfIn PDF document text
- http://xn--80aamwn.xn--p1ai/userfiles/file/28887580592.pdfIn PDF document text
- http://absolutelyneon.com/userfiles/file/41821215078.pdfIn PDF document text
- http://canxetaianhduc.com/images/file/gulox.pdfIn PDF document text
- http://olech-rzeszow.pl/userfiles/file/wubirogofudi.pdfIn PDF document text
- http://karpatskiles.ru/store/file/babixazapewif.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_off0000b738.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB738 | 10104 bytes |
SHA-256: e64e58ab231be6c47e8b6fab1c255348b333c58c638fa2b08073d3bf4e017c0b |
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font_01_sfnt_off0000cd93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD93 | 16500 bytes |
SHA-256: 0b5603e9f355d43932d9f7b939b611318fc61c514d07603188b81df362fcebdc |
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font_02_sfnt_off0000f793.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF793 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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