MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file functions as a link farm, containing numerous URLs that point to compromised CMS upload storage. These links likely serve as a distribution mechanism for phishing content or further malware. No scripts were extracted, and the document body was unreadable, but the presence of multiple suspicious URLs and the 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristic strongly indicate a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/161349f7dedf58---mirefenupifejikupomumi.pdf
- http://iweldbot.com/ckfinder/pho/files/50682110559.pdf
- https://livre-d-art.com/ckfinder/userfiles/files/24800702289.pdf
- http://autofox.lt/ckfinder/userfiles/files/xovej.pdf
- https://igruppe.no/ckfinder/userfiles/files/50796739007.pdf
- https://dveropolis.ru/upload_picture/46442574533.pdf
- https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/5603f7161b46bdbb00f4d5b0b4f32a54/vurugi.pdf
- http://www.giuseppe.ru/ckfinder/userfiles/files/zejowinoka.pdf
- https://telechips.com/ckfinder/userfiles/files/juxaditopozexof.pdf
- http://nakloboucku.cz/uploaded/file/tepopitobe.pdf
- http://josepholszowka.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nemuvo.pdf
- https://ladulceseguros.ar/noticias/fckeditor/file/givuz.pdf
- https://lotte-ppta.com/beta/assets/file/figuv.pdf
- https://growyourmoney.in/userfiles/files/lisupozirikexavaferara.pdf
- http://www.bluefashion.cz/ckfinder/userfiles/files/54488288669.pdf
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/161418d98e5866---79655107005.pdf
- http://zjnep.com/ckeditor/ckfinder/userfiles/files/58242429734.pdf
- http://elosc.com/upFile/file///ITX202109151914531958.pdf
- https://stalbeckers.nl/userfiles/image/file/datugogolakata.pdf
- http://futurepoolandspa.com/ckfinder/userfiles/files/wopumat.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=watch+hercules+123
- https://tes-sys.com/uploads/ckfinder/files/20210917/16318507545915.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fdb4.bin2a81ff620ac2ab683e903248680e70498f08d5934256bdac1be973362c74db2a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDB4 | 10448 bytes |
font_01_sfnt_off000115c3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115C3 | 16792 bytes |
font_02_sfnt_off00012dd5.bind80f14599116bbd949ce50d631fd20566a9e2f47eb956df534cd2207e8ac3b11 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DD5 | 17872 bytes |
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