MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm or redirection mechanism. The presence of external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic indicate an attempt to direct users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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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://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/0sbk7c3mgmmrkd0ckqmm4su1o6/45696797736.pdf In PDF document text
- http://eclickapps.in/userfiles/files/26066884571.pdfIn PDF document text
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16100db00ba5d6---naduturisunav.pdfIn PDF document text
- http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c52e1ee0733---wotijinu.pdfIn PDF document text
- https://oddluzanie.net/userfiles/file/61056338874.pdfIn PDF document text
- http://wearefamilypalestine.com/clients/3/3b/3bc38fc23f9ffb54b20226cbd6ad6ce3/File/kusotapare.pdfIn PDF document text
- http://tz5168.com/uploadfile/image/2021/05/20/file/20210520_025420_166.pdfIn PDF document text
- http://patroha.hu/file/nusipenozoxibanirel.pdfIn PDF document text
- http://kondicionery-ivanteevka.ru/upload_picture/file/99264257874.pdfIn PDF document text
- https://fier-forjat-valimet.ro/ckfinder/userfiles/files/redokaguwewipaxo.pdfIn PDF document text
- https://jagamimpi.net/contents//files/78576987231.pdfIn PDF document text
- http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d11ff9c747---dewil.pdfIn PDF document text
- http://xn--90aoa5aj.xn--p1ai/ckfinder/userfiles/files/17332532426.pdfIn PDF document text
- http://architettipassarinmarzotto.com/userfiles/files/likosuwakabozedobokafa.pdfIn PDF document text
- http://sushiosushi.com/uploads/files/narumefik.pdfIn PDF document text
- http://clair-environnement.eu/catalogue_dynamique/file/32989232066.pdfIn PDF document text
- http://mebelhotel.ru/userfiles/files/57170152487.pdfIn PDF document text
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606c97eeefa2e---golowake.pdfIn PDF document text
- https://alyosserspneed.com/userfiles/files/82250771273.pdfIn PDF document text
- http://gyogytornasziget.hu/uploads/files/wugidatunagaji.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=valuation+models+for+companiesPDF 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_off0000d99a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD99A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f1ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1AC | 18176 bytes |
SHA-256: aaddc7f7ec40c4fb49e18ada619c1c2e266c466a84c06a4384a5b6f196f4d395 |
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font_02_sfnt_off000120e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120E2 | 10852 bytes |
SHA-256: 196c4b61f4ce92588a86c10d580aa8cfc78f3ff798e7dd5175fcaa15e5cb7752 |
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