MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating it is a phishing lure, specifically using an 'SEO redirector' to trick users into downloading a file. The embedded URL 'https://inwebjor.ru/uplcv?utm_term=goodbye+germ+theory+pdf+download' and the link to a compromised WordPress upload storage suggest a phishing campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for credential harvesting or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9958
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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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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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://inwebjor.ru/uplcv?utm_term=goodbye+germ+theory+pdf+download PDF link annotation
- http://technoculture.cz/admin/upload/file/jijijedisoroxegiviribexet.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608059266cb2d---60754023820.pdfIn PDF document text
- http://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b8f1aa234d---90924444102.pdfIn PDF document text
- https://bruceautoservice.com/files/file/17146827505.pdfIn PDF document text
- http://kubak-ubezpieczenia.pl/userfiles/file/1857427842.pdfIn PDF document text
- https://fertilizerproductionprocess.com/d/files/66340110575.pdfIn PDF document text
- http://pvsystreports.com/wp-content/plugins/super-forms/uploads/php/files/3tlnh2aeerugqilismp9catqg0/25952127684.pdfIn PDF document text
- http://fritz-fahrlaender.ch/download/35282780182.pdfIn PDF document text
- https://paklya.su/design/img/upload/file/60826593404.pdfIn PDF document text
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/adea6ce641f963b7cc6b71900979036e/97952185646.pdfIn PDF document text
- https://jfefood.com/wp-content/plugins/super-forms/uploads/php/files/997655e0045f1c0ad636c7886b7fdaba/65831070302.pdfIn PDF document text
- https://www.perfumista.co.uk/wp-content/plugins/super-forms/uploads/php/files/eaad77f007ac5593d66915b8a4d79d95/divupedimukerufogegog.pdfIn PDF document text
- http://xn--aknmedikal-yub.com/uploads/file/8879311446.pdfIn PDF document text
- https://cicadit.ro/UserFiles/file/povijatujozofademota.pdfIn PDF document text
- https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/9d942d7e6f84cea03a45f6098d5c111c/12048946496.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00041648.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x41648 | 5644 bytes |
SHA-256: a0b44e905bea39cc7f620be0220bd9e93c303333695918f176ea65d37f3e7ae2 |
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font_01_sfnt_off00042967.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x42967 | 10688 bytes |
SHA-256: e283a0368e3a3514fc8401684ef31cf011da32f3e3db57886a6f8f7e1e94edcb |
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