MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs that function as a link farm, directing users to potentially malicious content. Several of these links point to compromised WordPress upload directories, indicating a tactic to host malicious files on seemingly legitimate but compromised websites. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://pistant.ru/uplcv?utm_term=youtube+downloader+full+apk PDF link annotation
- http://ingegnasrl.com/userfiles/files/82017535982.pdfIn PDF document text
- https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/161403ae3db3d2---90156271259.pdfIn PDF document text
- https://www.nitm.ac.in/nitmeghalaya/ckfinder/userfiles/files/96762618454.pdfIn PDF document text
- http://domki-kopalino.pl/pliki/dewoxadivogegiw.pdfIn PDF document text
- http://wcsps.com.tw/ckfinder/userfiles/files/52539717569.pdfIn PDF document text
- http://nanoscopy.ru/uploads/files/21715719118.pdfIn PDF document text
- http://waetsukai.jp/system/ckfinder/userfiles/files/watikud.pdfIn PDF document text
- https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/nridbutkarjrdvi4hh50e6dm64/71119317883.pdfIn PDF document text
- https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/2520172d57c1c5a6566264db2b1dbece/milonafavivewuvexabez.pdfIn PDF document text
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/16145281a1f13b---12320947543.pdfIn PDF document text
- http://www.xn----9sbkvfu2aex3d.xn--p1ai/ckfinder/userfiles/files/12244789758.pdfIn PDF document text
- http://scandinavia-ex.com/images/blog/file/mosomefinetodemirunun.pdfIn PDF document text
- https://dangeloremodeling.com/nbloom/fckuploads/file/navamuxito.pdfIn PDF document text
- http://gewald.ru/content/Files/mewag.pdfIn PDF document text
- https://elmawadah.com/userfiles/file/sudeganodod.pdfIn PDF document text
- http://senvietsystem.com/ckeditor/upload/files/nosudopemovapi.pdfIn PDF document text
- https://nidi.mk/ckfinder/userfiles/files/27644913459.pdfIn PDF document text
- http://chaodontuonglai.vn/uploads/ck_upload/files/xixemofojebus.pdfIn PDF document text
- https://pomtco.com/technical/files/file/84906405861.pdfIn PDF document text
- http://botaierpharm.com/upload/files/37194051312.pdfIn PDF document text
- http://paraleumarian.ro/app/webroot/files/userfiles/files/ximitisuzadaderusiwog.pdfIn PDF document text
- http://studionegrelli.it/userfiles/files/81379513479.pdfIn PDF document text
- http://grafosaleservice.cz/images/fck_editor/file/buzagizusawiwela.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_off0000b6f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB6F5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cf0c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF0C | 10632 bytes |
SHA-256: aaf12df2e8f0e908d5ff0c1c4dcbe628fbeac1612ce33588d2c1d3b596282807 |
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font_02_sfnt_off0000e756.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE756 | 15296 bytes |
SHA-256: 34a3d24360ddee087b537ccb58cf6eb31582cba1a838361cad99d8820018c1f4 |
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