MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9944
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://farmaciafasolis.eu/userfiles/files/73594078900.pdf In PDF document text
- https://tecnicadovolante.com/images/file/kuwajuwanirulagugadute.pdfIn PDF document text
- https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/8a773cbb2949f6100ad404dce0fa709b/40142614378.pdfIn PDF document text
- http://ericshartman.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/mewefozalelajalujuji.pdfIn PDF document text
- http://starinviter.com/ckimagefiles/20988178920.pdfIn PDF document text
- http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/16136a0d185e15---46235474334.pdfIn PDF document text
- http://tuivaivietnam.com/uploads/files/92858220631.pdfIn PDF document text
- http://francescofesta.it/userfiles/files/xunelumodetavezosilisaka.pdfIn PDF document text
- https://giraffeng.net/infodaily/gen-ckfinder/userfiles/files/setamelilimogewuvel.pdfIn PDF document text
- https://cafesca.info/ckfinder/userfiles/files/11668689759.pdfIn PDF document text
- https://allcreaturesinc.com/files/files/muwefetizofotivewa.pdfIn PDF document text
- https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/6e048d891203a4ca892105a6bafaeb10/kevisokutudisewije.pdfIn PDF document text
- http://studiomistretta.com/userfiles/files/molap.pdfIn PDF document text
- https://gadesign52.com/uploads/files/202109022123335766.pdfIn PDF document text
- https://concertwristband.com/resimler/files/gigefokiku.pdfIn PDF document text
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fc1830fbd1---24485098420.pdfIn PDF document text
- https://dom4m.lv/userfiles/files/40818596758.pdfIn PDF document text
- https://samuelben-horin.com/userfiles/file/33783116975.pdfIn PDF document text
- https://mr-alian.com/upload/ckfinder/files/53619941035.pdfIn PDF document text
- https://gegeny.hu/uploads/file/84520765416.pdfIn PDF document text
- http://zamgph.com/uploads/file/030548383872.pdfIn PDF document text
- http://compufoxmail.com/FCKeditor/editor/filemanager/connectors/userfiles/file/juzafopowufi.pdfIn PDF document text
- http://midoriku.zaitakunet.jp/app/webroot/upload_images/files/95730674873.pdfIn PDF document text
- https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/1613193fe8adb5---1790753648.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=download+ios+14+apkPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c3c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC3C1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000dbd3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBD3 | 18400 bytes |
SHA-256: 7d92786316a984a29b6b955df96cd18697085bddbe0c6cb671800406f3bbdd15 |
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font_02_sfnt_off00010b31.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B31 | 16232 bytes |
SHA-256: e06ebeaa2bb94d9bf14337b0794fec2c9c4a66e30291689b6f6234bfe360c8a5 |
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font_03_sfnt_off00012115.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12115 | 10364 bytes |
SHA-256: 0cfabd9d5b64f7f35a2fb4612a7651a30a4c11e8749dc4c146fa8145d63035c5 |
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