MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Numerous heuristics indicate the PDF functions as a link farm, directing users to multiple external websites, some hosted on compromised CMS platforms. The embedded URLs and the nature of the heuristics suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://ketchas.ru/uplcv?utm_term=what+is+the+penalty+for+fraud+over+5000
- http://pferdefreunde-brueckenhof.de/sites/default/files/userfiles/file/pumatababusebibodifene.pdf
- https://techielingo.com/fck_uploads/files/panikuzafufelebekim.pdf
- http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/1609e9b14629cc---xovifamujazafi.pdf
- https://peterdegendt.be/file/96103994469.pdf
- https://gilbertems.com/videos/file/nikofikakenewesilavijotal.pdf
- http://kovacsoltvaskerites.hu/images/file/josepitijeraragabege.pdf
- http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a001795a62a---27334761122.pdf
- http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609d99b1063e0---5907401984.pdf
- https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/06ba6871ce3e756e8e8389d6caf760ad/jarabezikovinam.pdf
- https://purebodycare.courses/wp-content/plugins/super-forms/uploads/php/files/oj96bervn8urm5em2c3q01ng5o/14156455160.pdf
- https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/qaoa3bvogofqk5apfjdblsq8v6/80952947368.pdf
- https://infotechb2blite.com/bot/ckfinder/uf/files/pesirigoninawijew.pdf
- http://langfordfinancialservices.com/userfiles/files/wudowurorotisonazofudob.pdf
- http://jjmcp.jp/userfiles/Image/file/zedorenalemirora.pdf
- http://wsystem.sk/userfiles/files/21135329884.pdf
- http://daiichilogistics.com/uploads/news_file/90064682041.pdf
- https://rlvanstory.com/wp-content/plugins/super-forms/uploads/php/files/40e404b84ce11516db32a997b2d59460/gegoxuzu.pdf
- http://olsztyntransportmedyczny.pl/userfiles/file/vetowap.pdf
- https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/aostko1n0i2pda9v74f7m180q3/xavuma.pdf
- https://midasspa.com/ckfinder/userfiles/files/26850527202.pdf
- https://www.pennlighting.com/wp-content/plugins/super-forms/uploads/php/files/583c5b0ee6667b8af0732f7ef5cf80a6/xigusa.pdf
- http://accronline.com/userfiles/file/vekotodi.pdf
- https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/7e7f2ab6c3eb6147e1261512ec05ee0c/bugiwibugumavafu.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_off00012ea7.bin80510da8e7eb0bd80107daf913cc2b8433462ecdd12f1dfaf6114c93a971ffbb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EA7 | 17772 bytes |
font_01_sfnt_off00015d56.bin8c323986bb34178f99ac9bf27296ffd5141ff841dd30b5a3163c410d4ce6d68a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15D56 | 11124 bytes |
font_02_sfnt_off0001774c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1774C | 16792 bytes |
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