MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classification and ClamAV detection as a phishing trojan. It contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the overall structure indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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://queure.ru/uplcv?utm_term=income+tax+reviewer+pdf
- http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/3bf522180633c6761359366c1c4e8eae/sabujubixuwotagasumitene.pdf
- https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/536f217647633e124b5fbdab801a100b/666111681.pdf
- http://upoart.com/ckfinder/userfiles/files/mabizatetiluzagisilate.pdf
- http://tachikawa-derma.biz/ckfinder/userfiles/files/73868098023.pdf
- https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/1a7af141928943006617dce8e49ba43c/sarivi.pdf
- http://tingyi-bnb.com/CKEdit/upload/files/18781550959.pdf
- https://globalclassic.org/wp-content/plugins/super-forms/uploads/php/files/p7e2csqjccl7ltd4rtilasha9k/tobobuvivikasomenuvuj.pdf
- https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609eeca6788d6---10418170617.pdf
- http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/160749593c2022---65858279542.pdf
- http://mrsinternationalbeautypageant.com/clients/8/8c/8c0f0497d7166b07b5568c04be8084ca/File/84681239803.pdf
- https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/13008aeb576ed0e18d83661da4b2c113/36152077389.pdf
- https://jdlpartnerss.com/userfiles/file/retuwutagupufolub.pdf
- https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/391uk34tq86dskobdi1smurc0m/95956822413.pdf
- https://atcotourismtravel.com/userfiles/file/gadodo.pdf
- https://hinodanang.com/uploads/image/files/gigisugodavi.pdf
- https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/976b17d69de42721f9e46f9790764a32/dorukofirop.pdf
- https://keralatemples.info/ckfinder/userfiles/files/14922683251.pdf
- https://actaviaserica.org/board/file/files/lusarasem.pdf
- https://daleel.global/wp-content/plugins/super-forms/uploads/php/files/2usg2rnlt6nnm5jnt2l10purk9/52084120931.pdf
- http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160bb71c775feb---mureliponesevubamiw.pdf
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ec775685ad---42758836375.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c46f.bin7f27d4501f6f7cd0eae68743fa7d6f6147e7b539c5e4b77cdeee33fef4ac4435 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC46F | 10772 bytes |
font_01_sfnt_off0000dd46.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD46 | 16792 bytes |
font_02_sfnt_off0000f558.bin894e3223e3be858cd2b0a62c342f0ac74c9fcde10a30c4d29fdc461ce590a3aa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF558 | 16700 bytes |
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