MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It functions as a link farm, with numerous URLs pointing to various websites, including those hosted on compromised WordPress installations. The presence of 'utm_term' parameters in some URLs suggests a potential phishing or SEO manipulation campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9867
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://huntic.ru/uplcv?utm_term=khloe+with+tristan
- http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ec0399c8b1---48334418695.pdf
- http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a49edf14279---nerolebimewutenazevud.pdf
- http://dabaizhongxue.com/upload_fck/file/2021-7-6/20210706074437977986.pdf
- http://bociany.sk/media/file/zepoveduvugiwirusotaxe.pdf
- https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/d6f5b095f14b6624756d69bb17d7c2fe/31861985826.pdf
- http://aksaaydinlatma.com/img/editor/image/file/balovajadinifokawoto.pdf
- http://kompletucetnictvi.cz/files/file/nidenalener.pdf
- https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c98a82ec63c---54492041298.pdf
- https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/16079e1aea692c---74187860486.pdf
- https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607e56bb0b8dc---dazabigufivakugobesoviwub.pdf
- https://istanbulbalbir.com/upload/ckfinder/files/pigazox.pdf
- http://stark-tools.ru/images/uploaded/vikulipogowexam.pdf
- https://anukulagrotech.com/userfiles/file/xijuw.pdf
- http://jmlukanich.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/35391547963.pdf
- https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/cdc808c2b25b50d1c9a0dcf8fb107df5/55191825228.pdf
- https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/37fb4eaabf6fced5e9983c5cbbbcdf7a/gebapeti.pdf
- http://lnaixi.com/userfiles/file/20210613201959_1744747447.pdf
- http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d6c4a6912a---79042963337.pdf
- http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160b27e89c9e0c---tideturenavon.pdf
- http://3dtechgroup.com/uploads/image/files/zagupusinuse.pdf
- http://thehonourride.com/clients/c/c2/c2a221447f3e921143a55eca482c8289/File/gefobetunosibibazijawejon.pdf
- http://transsnabstroy.com/userfiles/file/74537364206.pdf
- https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/cea27cdc6cdd1bd52600776b5be805d7/4949373424.pdf
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16093b5fd6a13f---55668735663.pdf
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/b12f15f48948168eccf1f4b1b7bfa573/45405258848.pdf
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001287f.binfd494554c7a7a2c4488382a78096c535ff133766c7221992be4f6a58596b2467 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1287F | 16164 bytes |
font_01_sfnt_off00013df5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13DF5 | 16792 bytes |
font_02_sfnt_off0001560c.bindeb557add5d9e0cec4f332e14d12876a0fb05df57789eaeb73ecd0c05f121525 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1560C | 10284 bytes |
font_03_sfnt_off00016d36.binab9c48facc422b838eed43eafbc7272004cf1b3169b689362f3c327341bdabaf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16D36 | 18144 bytes |
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