MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised WordPress upload directories, suggesting it functions as a link farm to distribute malicious content or phish for information. The document body, though heavily obfuscated, appears to be a lure related to 'cursive writing capital and small letters pdf'.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://pistant.ru/uplcv?utm_term=cursive+writing+capital+and+small+letters+pdf
- http://www.empresasdelimpeza.info/wp-content/plugins/formcraft/file-upload/server/content/files/160b8514c19319---depelinutidivu.pdf
- https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f707a5ea9e---84216369250.pdf
- https://www.idahomedia.com/wp-content/plugins/super-forms/uploads/php/files/8d31bd0244113fde1384abc87f236e18/45943880003.pdf
- https://www.djluk.co.uk/wp-content/plugins/super-forms/uploads/php/files/gomcdfb12299ri0oqihj3u8pg5/53387644180.pdf
- http://logo4you.dk/userfiles/file/vafaralu.pdf
- https://mps-india.com/userfiles/files/vokugevebaxupe.pdf
- https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/43208c07dae51c7dad3210dda4a52a64/61464430612.pdf
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b0c6873b594---xugenosuzuwojizuxakaze.pdf
- http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/1609103f10d327---87666105325.pdf
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/7483a060c9a07d98410b56b0dc8e6413/wakerapigu.pdf
- https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/5d814c5f7020e60623a2fb856a3ea907/kinozutuzuze.pdf
- https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/4hrp4on8ui1bad4flu72d58gvr/20317420364.pdf
- http://cityhelps.org/clients/6/61/61afa7a028a8e04f14432b0fece6f2b0/File/95920795317.pdf
- https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b078e61dce6---wekotidipozipagef.pdf
- https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/6ot76hf0stnen2m33g0mvm0166/53170531276.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b239db0a971---navik.pdf
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b2ef039480f---33337995105.pdf
- https://law.myvzl.com/wp-content/plugins/super-forms/uploads/php/files/r2d4vh6rmgiu92p2pneonst78g/63653315188.pdf
- http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/g81rdd9t7h4kuac630s9r6u8n6/93387767896.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- 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://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000105b1.binfd1d0a61d732162fe680198c4103c65f785a3d31b4938b72f3e78bfbd487e09f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105B1 | 5532 bytes |
font_01_sfnt_off00011886.bin70e0d82a2872dabd035d0020665d1034b17bf0c31d9d53436763ce4ca0893cfe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11886 | 10508 bytes |
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