MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded URLs, many of which point to compromised WordPress sites and are structured as a link farm. The ClamAV detection and ML classifier strongly indicate maliciousness, specifically classifying it as a phishing trojan. The primary attack pattern involves directing users to potentially malicious or compromised external websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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 http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/16078e412e3837---boxedikexutiduzadux.pdf In PDF document text
- http://stylist.in.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1609347160ab8b---xagepazonunufigewebaduz.pdfIn PDF document text
- http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bce8268674---kozalumogix.pdfIn PDF document text
- http://arcomproltd.com/userfiles/file/56929665547.pdfIn PDF document text
- https://balticstroy.com/uploads/files/tapobewafafugifowunegif.pdfIn PDF document text
- http://sgrappresentanze.eu/userfiles/files/5134695049.pdfIn PDF document text
- https://www.alpha-dynamics.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1608520140a528---64092783103.pdfIn PDF document text
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/16092b6863a3b8---4620497668.pdfIn PDF document text
- https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/vgkgi3noqlivi0ujv8l6fn8tam/nogagal.pdfIn PDF document text
- http://aite-materials.com/upfiles/file/65226892183.pdfIn PDF document text
- http://aisef.org/uploads/userfiles/file/file/41676071975.pdfIn PDF document text
- http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607b9d94ceb69---javuwasakofi.pdfIn PDF document text
- http://www.zulfugar.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a08f2fb6a50---dipadezunesosos.pdfIn PDF document text
- http://sakem.org/userfiles/files/vulevezemurawaredopaset.pdfIn PDF document text
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608b926d8226a---7695960546.pdfIn PDF document text
- http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607d0075b2dff---61948257482.pdfIn PDF document text
- https://forcechicago.com/wp-content/plugins/super-forms/uploads/php/files/92d25e8edf2be3ab9647e0b3977c7dcb/nikerovosazidetija.pdfIn PDF document text
- https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/804e35761fe526a164a262a8edae2fc5/ziwovi.pdfIn PDF document text
- http://xn--l3cbpp3gh4a5g5c.com/userfiles/files/31864401359.pdfIn PDF document text
- https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/1u9r1kt5rbj6fk1dub1htsct1f/lesexoxudaredudewuwefu.pdfIn PDF document text
- https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/d9b20680e972069ee35a4d65e54eeaea/vaxijuw.pdfIn PDF document text
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160864b0cc7c11---18973161579.pdfIn PDF document text
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a4ca3499f80---65806813655.pdfIn PDF document text
- http://sgrappresentanze.eu/userfiles/files/60927450701.pdfIn PDF document text
- https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/penadewa.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=linux+grep+searchPDF link annotation
- https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/8ebee57061efe1309eef0d986d2e18eb/5548895605.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_off0000ea08.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA08 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001021a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1021A | 17740 bytes |
SHA-256: 8551817151ad5d4f1d07bb9f5a4f692b971e649b6d20665914cfc90c69750b64 |
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font_02_sfnt_off000130f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x130F5 | 10548 bytes |
SHA-256: fe2d414de2fa3202eca2b9802e3f105a3463746836b93a4c11ad88606d5c55b4 |
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