MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The ML classifier and ClamAV both strongly indicate maliciousness. The PDF contains numerous links to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of multiple distinct hosts and the use of form-builder plugins for file uploads are common tactics for distributing phishing lures or malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16078f844d97e3---9349257296.pdf In PDF document text
- https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/4b4ade178578de8de2abc0ac66d0367c/71233884610.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160d6f858dbae8---zukapatogexofojav.pdfIn PDF document text
- http://de-ko-gmbh.com/ckfinder/userfiles/files/98081343300.pdfIn PDF document text
- http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607174a2d5775---zesabaxogijaludezaz.pdfIn PDF document text
- http://magnumprint.ru/upload/files/subugowezimetutufom.pdfIn PDF document text
- http://www.specemc.ru/upload/files/nepesetiviwelobamibo.pdfIn PDF document text
- https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/sh20e3p8unt21uba7cssuf6rsd/75267141710.pdfIn PDF document text
- https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/96d48659298087fdd1b467c0fa2c7aa1/nizeripokivufixe.pdfIn PDF document text
- http://amandamaitland.com/images/file/wazulodojuwi.pdfIn PDF document text
- http://teplolux72.ru/upload/file/53892044361.pdfIn PDF document text
- https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160901b3fc33f7---dozega.pdfIn PDF document text
- https://hocngoaingu123.com/upload/files/xuzuxujatubadegefoke.pdfIn PDF document text
- http://4bx.pl/public/file/janumisebapuv.pdfIn PDF document text
- http://mtsskzy.com/userfiles/file/3169844736.pdfIn PDF document text
- https://jetzterstrecht.hamburg/wp-content/plugins/super-forms/uploads/php/files/hb5739da8eo4r71jpapgufv1k5/21427708726.pdfIn PDF document text
- http://geombiagioschettino.eu/userfiles/files/75824338283.pdfIn PDF document text
- https://rodolphe-blanchet.fr/Rodolphe/fckeditor/file/vufogufozewano.pdfIn PDF document text
- https://blackknowledge.com/wp-content/plugins/super-forms/uploads/php/files/9df73bbc15ad1e7ac595273b048e81af/mojutebomebikegarem.pdfIn PDF document text
- http://akcjonariusz.com/UserFiles/file/jopuremazos.pdfIn PDF document text
- https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a9b1a1f206c---sagupebefaxudobufusekamab.pdfIn PDF document text
- http://dentherapia.hu/files/file/tedaj.pdfIn PDF document text
- https://linhquan-group.com/upload/ck/files/2403902052.pdfIn PDF document text
- http://palenice.net/obrazky_clanky/file/midujobiwiwobuwajenisudax.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=happy+birthday+to+you+notationPDF link annotation
- 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_off0000e650.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE650 | 10488 bytes |
SHA-256: aebe08e5d0eaa07cd7072aa47af5e4b93c09ca7971d045eb877a8b8d8c592920 |
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font_01_sfnt_off0000fdc8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDC8 | 17264 bytes |
SHA-256: ccbdb2099f4c06b31d0243080b00bd7d86c5ca9d8f80e382b73ee92da071c5a2 |
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font_02_sfnt_off00012ab9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AB9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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