MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ClamAV and an ML classifier, and exhibits characteristics of a link farm. Multiple heuristics indicate the PDF contains numerous external URIs and links pointing to potentially compromised websites, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs strongly imply an intent to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9919
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://garglob.ru/uplcv?utm_term=either+or+worksheets
- https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/c1be7dfd4bb61dba76663d65227c07cb/3755601813.pdf
- https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/6tbqcdilsv538c9tsom4v4tkom/felodiwon.pdf
- https://evrenmentese.com/upload/ckfinder/files/pozob.pdf
- https://ancoraeducacion.com/images/55832028537.pdf
- http://cyuanmei.com/userfiles/file/getebunefulifebed.pdf
- https://merohamro.com/ckfinder/userfiles/files/pezubujuve.pdf
- http://onishi-kyosendo.jp/archive/23251869466.pdf
- https://nhakhoaanphuoc.vn/uploads/files/rovezomoni.pdf
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b1288164dfc---83635868857.pdf
- http://csc-vietnam.vn/uploads/userfiles/file/pazakisotubokolesoniv.pdf
- http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/160aef3ba1dc3d---fipasi.pdf
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c469c92e852---30640537373.pdf
- http://reszke.pl/fckeditor/editor/filemanager/connectors/php/file/51218228710.pdf
- http://gopherandsquirrelcontrol.com/admin/images/file/lusemetajej.pdf
- http://asfalon.com/__files/file/vixujajisulitazopobe.pdf
- https://designclarf.it/file/64465467596.pdf
- https://grandplaza.bg/uploads/assets/file/91674710543.pdf
- http://booklandbooks.com/userfiles/file/60746515489.pdf
- http://thuduchouse.vn/pics/file/bixamizelumataziwa.pdf
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/91ad5b492808f673f91af8dd9b745ddd/vatoxonumuruk.pdf
- http://yonseri.org/userfiles/files/bekupevotovijotoxo.pdf
- https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/1457848598cf2ca3b9839cc03f029aa0/jawevaresigazebiniduval.pdf
- http://htk2.altrodesign.eu/ckfinder/userfiles/files/ginoxoxudagidatelido.pdf
- http://fra2ange.it/userfiles/files/mojop.pdf
- https://eatorhours.org/e-bussiness/fckimages/file/83212131033.pdf
- http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f384a7ecdb---94295595051.pdf
- http://mawaevents.com/uploads/file/26757778924.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_off0000e0f6.bin15f23f648fa74cdc8de8603af88e49db2aef09fe46e5ec76678273ac220b45be |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0F6 | 17112 bytes |
font_01_sfnt_off00010d28.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D28 | 16792 bytes |
font_02_sfnt_off0001253f.bin0af371eed11e536dff802803aa326a45c24b78f09773ddb346827d09261ab363 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1253F | 10056 bytes |
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