MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, directing users to various compromised websites and disposable hosting domains, likely to facilitate the download of further malicious payloads. The presence of embedded URLs and the heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggest a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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 http://aimecostruzioni.it/userfiles/files/wifumizifa.pdf
- https://underworldgear.com/upload/users/files/jeruparivivekamevaso.pdf
- http://hongdanhaudio.com/luutru/files/voxefufazofewalejexina.pdf
- http://alpanelektrik.com/depo/sayfaresim/file/10135854200.pdf
- http://www.corazondelsol.es/ckfinder/userfiles/files/68471404935.pdf
- http://hanabi-la.com/uploads/files/fubefarepomapima.pdf
- https://parc-hotel.info/file/55969404212.pdf
- https://www.litesourcenc.com/wp-content/plugins/super-forms/uploads/php/files/d7953ec58294980f25de4f6255594b4c/60930069402.pdf
- https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a4c028b27b---96100994960.pdf
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6d8a21e7cd---bijuzuvepenujupesiluxufax.pdf
- https://stijsr.com/userfiles/file/44742481490.pdf
- http://elijasprojekts.lv/files/file/7313260627.pdf
- https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/m76p01gbc9s0uifvg3qeo1rsj9/47852422441.pdf
- http://aliceinformaticasrl.com/user/pages/40277546618.pdf
- http://worldplastsolution.com/ckfinder/userfiles/files/kabijesixusenu.pdf
- http://terapeutickemasaze.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1609cd5d0b729b---wufimoner.pdf
- http://szilasfood.hu/pic_upload/files/50997191784.pdf
- http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609ce2a661fde---xiwepepinoj.pdf
- https://www.americansummercamps.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7946b37b8---resof.pdf
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f97a4ac7887---72230831981.pdf
- http://anhuishangbiao.com/upload_fck/file/2021-7-4/20210704162224201208.pdf
- http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606eb9b20f47f---ruworudutukudufiposudit.pdf
- https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607cdcbd3445e---71546295810.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=download+mp3+cutter+apk+for+android
- 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_off0000da7a.bin4cc79881e4b3e0389f5bbf493b3830db9e38954b8ada5ae4d759208f3d350f46 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA7A | 17204 bytes |
font_01_sfnt_off00010758.bin5a239aa16ff40d415a81c8c708d4ddfd97f17b87dd66561cd7d7207614aa4417 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10758 | 11064 bytes |
font_02_sfnt_off00012127.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12127 | 16792 bytes |
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