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 critical ClamAV detection and an ML classifier indicating a high probability of maliciousness. The file contains numerous links to external websites, many hosted on compromised WordPress installations or disposable domains, suggesting a link farm designed to redirect users to potentially malicious content. The presence of embedded URLs and the overall structure point towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://infrive.ru/uplcv?utm_term=deleted+audio+recovery+app+for+android PDF link annotation
- https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/a2c8187f7675f9fdf58c9eb7a6280857/gomesajizevab.pdfIn PDF document text
- https://istanajpdua.com/contents/files/tedexutox.pdfIn PDF document text
- http://filtrydokoparek.pl/img/all/goluberak.pdfIn PDF document text
- http://quangcaosmsgiare.com/media/ftp/file/53388242146.pdfIn PDF document text
- https://salondumariagededijon.com/userfiles/file/vugide.pdfIn PDF document text
- http://shinyoungvalve.com/userData/board/file/kufumapuniranerevazejowu.pdfIn PDF document text
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/fokirci5kfp3nckk37ui7t04v4/ripelowevupirotezavisexo.pdfIn PDF document text
- http://clickvay.com/upload/files/4007083228.pdfIn PDF document text
- https://trade.inter-ural.ru/ckfinder/userfiles/files/zolimafodafufapu.pdfIn PDF document text
- https://farsiherbal.com/cache/fck_files/file/70824350590.pdfIn PDF document text
- http://baheth24cars.com/ckfinder/userfiles/files/zafunudowakawamogesese.pdfIn PDF document text
- http://benetworkingpro.com/ckfinder/userfiles/files/29068282863.pdfIn PDF document text
- https://www.bnbtravels.com/ckfinder/userfiles/files/lotaromesegolokulo.pdfIn PDF document text
- http://thingsantiquesla.com/userfiles/files/39781851093.pdfIn PDF document text
- http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/f349dc5a69f752d5f0a53e711278e6ce/85061367084.pdfIn PDF document text
- http://solarissoft.com/img/userfiles/files/vutugajegafenap.pdfIn PDF document text
- https://alistairmills.com/ckfinder/userfiles/files/68030171736.pdfIn PDF document text
- https://swagath.co/new/ckfinder/userfiles/files/xekud.pdfIn PDF document text
- http://c-six.it/userfiles/files/dabinatevagutogapi.pdfIn PDF document text
- http://taxilitomerice.cz/ckfinder/userfiles/files/13895774882.pdfIn PDF document text
- http://acril.ru/ufiles/files/83589375637.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_off0000ad2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD2F | 16848 bytes |
SHA-256: 8e1369d636129d2cef479936dbfd97403dca63c0477e49fcaa3fd140cff13ad0 |
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font_01_sfnt_off0000d80c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD80C | 10728 bytes |
SHA-256: 4e8802407d364058d49899b08b16e6617e5892d573dfbfe8321ef5feadf9079d |
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font_02_sfnt_off0000f0d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0D6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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