MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a machine learning classifier and ClamAV as malicious, with heuristics indicating it functions as a link farm. Several embedded URLs point to compromised WordPress sites, suggesting an attempt to host malicious files or redirect users to phishing pages. The presence of a 'download button' heuristic further supports a lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://www.moyekolodin.com/files/nitebofizezoleduzitevira.pdf In PDF document text
- http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613c859b56a4b---81484875963.pdfIn PDF document text
- http://nhasachconggiao.com/luutru/files/betunowuragiloz.pdfIn PDF document text
- http://plan.msu.ac.th/ckfinder/userfiles/files/19711655771.pdfIn PDF document text
- https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/2e3fecd99e4367332be9f7ab86d6fab1/73663434106.pdfIn PDF document text
- https://wineart.online/userfiles/file/pasevejiz.pdfIn PDF document text
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161422424dc73c---79926948188.pdfIn PDF document text
- http://biurod9.pl/public/userfiles/file/vavalerobe.pdfIn PDF document text
- https://mkart.it/uploads/file/29002143418.pdfIn PDF document text
- http://faurau.com/luodan/images/userfiles/file/ximaburefikegunuxako.pdfIn PDF document text
- http://laclonghotel.vn/upload/files/sorunesivuvokew.pdfIn PDF document text
- http://italy-ex.com/images/blog/file/rexudovu.pdfIn PDF document text
- http://bratislava.topenglish.sk/app/webroot/gallery/files/wiremeropeso.pdfIn PDF document text
- https://barrier.exma.cl/ckfinder/userfiles/files/13008622725.pdfIn PDF document text
- http://tajilin.com/upload/files/64351899623.pdfIn PDF document text
- https://m-isc.com/userfiles/file/sitidugu.pdfIn PDF document text
- http://aylabawadi.ae/userfiles/file/getogudovi.pdfIn PDF document text
- http://ingatlantv.tv/userfiles/files/jumetelepodiwodozerawixez.pdfIn PDF document text
- http://domuran.pl/files/file/xufusaraz.pdfIn PDF document text
- https://bodymart.in/ckfinder/userfiles/files/xafubexiteromagixun.pdfIn PDF document text
- https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/251a162ad377103d0cdeaf56e7734b30/jumitebugojusek.pdfIn PDF document text
- http://skogsformedling.se/bilder_umeny/File/kiwevetawomiza.pdfIn PDF document text
- http://forma8.kz/ckfinder/userfiles/files/61430735597.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=download+file+iso+windows+10+pro+64+bitPDF 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e57b.binef419e54a6dd232d52fc172fd173c01d8adfd132646552143e77bffd5e5783c8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE57B | 18404 bytes |
font_01_sfnt_off000114eb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114EB | 16792 bytes |
font_02_sfnt_off00012d02.bin9cc0188ad0fa55c18381e5406afee9d38ffd53a7be53ac33a1a6343f97560246 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D02 | 14640 bytes |
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