MALICIOUS
156
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, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, pointing to numerous URLs hosted on compromised WordPress sites and disposable domains. These links likely lead to phishing pages or further malware downloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://infrive.ru/uplcv?utm_term=pubg+mobile+lite+new+update+play+store PDF link annotation
- http://jedzenie365.pl/ckfinder/userfiles/files/tokisobalixuto.pdfIn PDF document text
- https://kocarbonag.com/luutru/files/53587741412.pdfIn PDF document text
- http://versobrokers.eu/userfiles/files/52195367141.pdfIn PDF document text
- http://vasekurzy.cz/userfiles/file/85446458571.pdfIn PDF document text
- http://cinebuzz.be/uploads/userfiles/files/lenolufuvo.pdfIn PDF document text
- http://marleenjansen.nl/images/uploadfiles/motofetinosukavupugowuvo.pdfIn PDF document text
- http://dieutrimun.myphamkangnam.vn/webroot/img/files/52046692052.pdfIn PDF document text
- https://angkalaris.com/contents/files/67295722874.pdfIn PDF document text
- http://atenngo.com/admin/sites/site/documents/17646803606.pdfIn PDF document text
- https://doublehair.center/upload/ckfinder/files/guvukafisuwakaruroworuxan.pdfIn PDF document text
- https://srmhomes.com/images/bulk_images/files/risawirij.pdfIn PDF document text
- http://jnmindia.com/outscapes/admin/ckeditor/uploads/ck/files/jaduvasudesikexaxawebipi.pdfIn PDF document text
- http://111-orte.com/testarea/cwsCMSlight/media/files/bemanugijorekokuzowu.pdfIn PDF document text
- http://hyundai-dongdo.vn/images/files/15200267943.pdfIn PDF document text
- http://originalavto.ru/userfiles/file/runilum.pdfIn PDF document text
- https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/89accbbf9a5b6f94c366afa532cd6f0d/veketix.pdfIn PDF document text
- http://propertiesforrent.com/userfiles/file///kigusido.pdfIn PDF document text
- http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/11f4da05ebe5f6bec9c8e996d9ef6181/84240945566.pdfIn PDF document text
- https://sieuthimayphat.com/ckfinder/userfiles/files/fogevoler.pdfIn PDF document text
- http://www.serge-valentin.net/ckfinder/userfiles/files/69851902622.pdfIn PDF document text
- https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1613ab56679358---4771050711.pdfIn PDF document text
- http://files.ibiza-ferien.de/file/33794108362.pdfIn PDF document text
- http://leprofit.ee/cmsfile/contentfiles/sitarisewaribupedimu.pdfIn PDF document text
- 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_off0000c0e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC0E5 | 17040 bytes |
SHA-256: 55179a695bfbbaa7f46690a312674a48854c3e4a5c833c581a4310679a9565e0 |
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font_01_sfnt_off0000ecd6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECD6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000104ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104ED | 11176 bytes |
SHA-256: 950bde0ad1b2ef996b565b6993427a595546bb5640fbd974754be79990f2e348 |
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