MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was identified as malicious by ClamAV and an ML classifier, with multiple heuristics indicating it functions as a link farm. The PDF contains numerous URLs pointing to compromised CMS upload directories, suggesting an attempt to distribute further malicious content or phish users. The presence of 'utm_term' parameters in some URLs further supports a phishing or malicious redirection 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 http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1609ab889ba931---65326707577.pdf
- http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bfff4d1ac4---bovegewipotatos.pdf
- https://serwisnawigacji.pl/userfiles/file/89238647793.pdf
- https://brothers-music.com/ckfinder/userfiles/files/pemenurilokotujaxa.pdf
- https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/16096f0d04dbd9---82794231638.pdf
- https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/97320b33c66781863886dea628fbe494/devoluduluxeredivamo.pdf
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb89a25d53c---42858514026.pdf
- http://brkvinc.com/userfiles/file/99042188614.pdf
- http://marasintl.com/public/ckfinderuploads/files/66631048884.pdf
- http://synagoge-stommeln.de/ckfinder/userfiles/files/pujixusesefepemajuvem.pdf
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/jk863j7cqfctm486jmn72pcjf3/wafagetuputidosofajujud.pdf
- https://khambenhxahoi115.com/images/files/52041051355.pdf
- https://www.psalighting.com/wp-content/plugins/super-forms/uploads/php/files/5241e9500ef6e52b52bfcc2738cbf836/fuzavixejavoruganositolew.pdf
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b4b41ba6d3f---rafanebotelisar.pdf
- http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/160870cb7e68dc---bokebupabezuba.pdf
- https://tavio.ru/files/file/4348594905.pdf
- https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160799e25c8eb2---jajamulejelelozofefev.pdf
- http://uctodane.cz/UserFiles/File/sumegozemuvapi.pdf
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088eb7ed783b---52729751163.pdf
- https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/4e07bba37a041a983ccc8e9ec059219b/1780955333.pdf
- http://verynailscm.com/user_img/file/21365868878.pdf
- http://shavers-boles.com/clients/7/73/73b1ad2e2c85410b7b015c0c79a6caf4/File/vafuz.pdf
- http://middlegeorgiacoinclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095feacd622e---46637013795.pdf
- http://halaljones.com/uploads/files/23276503418.pdf
- https://indacphuc.com/wp-content/plugins/super-forms/uploads/php/files/ch897b03vopng4s1pfptb3mmts/tafopazalagaxowojemiluf.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=keep+your+friends+close+and+your+enemies+closer+quote
- 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_off0000f161.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF161 | 16792 bytes |
font_01_sfnt_off00010973.binc8b1078c9ec8ab80f184c11f61db08f55a0d725f258ebac94a38bdd78ff448ab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10973 | 17244 bytes |
font_02_sfnt_off000136a7.bin6fff2f960cd934e30720f17675d6af7a86b9ffa7581844a8da2f9b722355f7ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x136A7 | 11132 bytes |
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