MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites, likely serving as a distribution point for further malicious payloads or phishing attempts. No scripts were extracted, but the PDF structure and URL patterns are strongly indicative of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://crysiq.ru/uplcv?utm_term=words+to+describe+tone+quality
- https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160868439d875d---63281934108.pdf
- https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/jq45d0b2a9vbnfrg99es6b3qup/fipopakewafatedusezo.pdf
- http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/e0e2tq3blcjs2be9bg0habt4bc/wopilujever.pdf
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606f35b07f8c3---79320704543.pdf
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/3029dhqkhnfnjdo4kehrj5fke7/30693176856.pdf
- https://vasantviharproperties.com/userfiles/file/wozovanisuwu.pdf
- http://perles-del-beya.com/userfiles/file/96362278422.pdf
- https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/74sqk3vkrfo65c9uil313sap70/nusajixijab.pdf
- http://msiutilities.biz/documents/71954719031.pdf
- http://agcslohian.com/userfiles/file/ruwaladulezekepewiro.pdf
- http://cuacuonnhaxuongbinhduong.com/upload/files/xexameriletodadusebepe.pdf
- https://cosalesrep.com/wp-content/plugins/super-forms/uploads/php/files/161d6d14249d20d1f2f937a9b1fb40f5/setesatejufiwixuse.pdf
- https://www.expoagrogto.com/wp-content/plugins/super-forms/uploads/php/files/fqurhgvfe1qb322muao94ik3c0/34806002758.pdf
- http://afgventuregroup.com/cfiles/file/57793521981.pdf
- https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/160baf5a91d910---716464128.pdf
- http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/032p75udssts6rth6taq0ec147/niloduzageziwegaxagorad.pdf
- http://zuche0551.com/upload/file/69068249550.pdf
- https://thejasmineway.net/wp-content/plugins/super-forms/uploads/php/files/a3hf91aun9k4s8tvvf7pmnqrhn/tobamukijakegufena.pdf
- http://ascensionchina.com/userfiles/file/75528069188.pdf
- http://alliance-ic.ru/uploads/file/12206191107.pdf
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/3881fe61169861f4af19388748640327/rawowotirawokizimekegux.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607432d23a27b---33478130865.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_off0000f73d.bine2b7127ef7b077ef18c00ee2f31b8a045fa5c6f2ce6d0ed8355e8da12d0b58f6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF73D | 17960 bytes |
font_01_sfnt_off0001261c.bin1a3cf3f9a71163f5d448c2496009c1e0f44878380d410a383c6819af0f728844 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1261C | 10856 bytes |
font_02_sfnt_off00013f1f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13F1F | 16792 bytes |
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