MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links pointing to compromised WordPress sites, which in turn host other PDF files. This suggests a link farm or redirection mechanism designed to obscure the ultimate destination, likely for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://technok.cz/wp-content/plugins/super-forms/uploads/php/files/418f9d98aca37bf24ce2e9340444da12/67520411730.pdf
- https://evg-prague.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b9d005240de---37875691123.pdf
- http://brenna-ski.pl/userfiles/file/sulekat.pdf
- http://aczelzalog.hu/tmp/wawafolixut.pdf
- http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609c6895918c4---91565121604.pdf
- http://shelton1961.com/clients/35589/File/82909792936.pdf
- http://fsoa.cn/userfiles/file/69581706692.pdf
- https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/8i45vvlf5dn200o3r283kudm7c/3649847171.pdf
- https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/9a797ee2793020a00c7c140e0158bb35/zufin.pdf
- http://bannermaul.com/userData/board/file/bisimomowowivitarigovu.pdf
- https://xn--arbeitskndigungsrecht-best-5zc.de/userfiles/file/34742314113.pdf
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d044366b297---zakezurexineraroguxowek.pdf
- http://ledseoul.com/userData/board/file/notunubobuvoxetatasav.pdf
- https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/d9fde5d3f5549ce21e27910ec7d3eccc/fasiwokitixuj.pdf
- http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/jvc216u48pgd2qokqcjuklk0du/dojul.pdf
- http://sun-green.nl/ckfinder/userfiles/files/75169699726.pdf
- https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/bq4mske8ra6gmm8iqtuch7ctdh/nafifosisilodebijanukir.pdf
- http://amandamaitland.com/images/file/18394518555.pdf
- http://adamshs-pdx.com/clients/d/d3/d3c120c733f7363e2cdaef2cff5f3687/File/33452850791.pdf
- http://indianspringhomes.net/userfiles/files/64949525022.pdf
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/70d976d6a1d90daea37cfdd3fd4b6c72/29796343269.pdf
- http://www.bufolari.com/public/immagini/file/92651870211.pdf
- https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/bd378e2a91e10f48d435331dc5ff9739/70675560627.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=expectation+from+husband+quotes
- 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_off00010f45.bin1961e241f6bb0c7a935df7e7afb7cb17becb84a17e7f28fdb1aa7a1fabcb112f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F45 | 11308 bytes |
font_01_sfnt_off00012941.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12941 | 16792 bytes |
font_02_sfnt_off00014153.bin1557fee0ed4b151cbc4fcaa451fb8b2e551624398143626ef89fc511f58026f9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14153 | 18576 bytes |
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