MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, with numerous URLs pointing to compromised CMS uploads and disposable hosting. These links likely serve as a distribution mechanism for further malicious content, potentially exploiting vulnerabilities in the user's PDF reader.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://www.displaysdirectaustralia.com.au/application/third_party/ckfinder/userfiles/files/tabezofetiposarofofo.pdf
- https://www.alignerco.ca/wp-content/plugins/super-forms/uploads/php/files/22d0fd03bb2d9bf843826d042ac97f6d/38700617512.pdf
- http://hpworld.hu/data/pic/Image/file/zovatikazakexogiwirusuvu.pdf
- https://grupo-kayros.com/userfiles/file/mojuzuz.pdf
- https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ca040461005---roponisimomaj.pdf
- http://cephedanismani.com/images/pages/file/2888435753.pdf
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/1607e557bc54d4---46219457411.pdf
- http://brucemsmithlaw.com/clients/e/e2/e252bfde01ef004f685a9648d307a4b9/File/32497928862.pdf
- https://mygamedaysports.com/wp-content/plugins/super-forms/uploads/php/files/d756dc6c60c95adafb7a5de825b34166/tifinepowifijexuzofezi.pdf
- https://chamsocmuihong.com/wp-content/plugins/super-forms/uploads/php/files/e92l1kg53j8n8o4amf47koj6m7/37309473180.pdf
- http://grupposcorcia.it/userfiles/files/kibijituzilarilenigurozan.pdf
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16108eaeade482---tijajel.pdf
- https://www.northernillumination.com/wp-content/plugins/super-forms/uploads/php/files/2d7af699b91e13e6d7accc0042ee6cbd/61859285231.pdf
- http://creaorganization.com/depo/sayfaresim/file/22763483762.pdf
- http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1610b8a1650020---dulora.pdf
- http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073b62356d28---wuleluxerazax.pdf
- https://tahubunting1.com/contents//files/70312246040.pdf
- http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a4267e2278---tovowetewe.pdf
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/160fe20017c4ec---futajimuvidusamozo.pdf
- http://at2apigroup3.com/contents//files/26340358530.pdf
- https://suruburi.net/mm/file/gulurapixeruwaka.pdf
- https://rajaunited.com/contents//files/59353066132.pdf
- http://bindashnews.com/userfiles/file/duwavuwebevetojelunerix.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=textbook+of+pharmacology+pathology+and+genetics+for+nurses+pdf+download
- 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_off0000bc95.bin46081899b2bd251b8b5fa20b3b5d987e39e39e8f82c8c9ba991794dbf9464bef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC95 | 19212 bytes |
font_01_sfnt_off0000edc9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDC9 | 16792 bytes |
font_02_sfnt_off000105e0.bin56e1d49484ab6ef40d7624c038b929f9cb848d5ce22a04bb4baa3ad09f509179 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105E0 | 11664 bytes |
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