MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs that point to various domains, many of which appear to be disposable or compromised hosting. Heuristics indicate this is a link farm, likely for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, classifying it as Pdf.Phishing.Trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://wastran.ru/uplcv?utm_term=mp3+juice+download+mp4 PDF link annotation
- http://www.jindatunnel.com/up_files/file/tanakolanuzibi.pdfIn PDF document text
- http://asja-doll.ru/userfiles/file/81041374434.pdfIn PDF document text
- http://asremajazi.com/uploads/files/18799191882.pdfIn PDF document text
- http://liburnia.pl/userfiles/file/tisal.pdfIn PDF document text
- https://rux-thai.com/ckfinder/userfiles/files/lojezepofuw.pdfIn PDF document text
- http://studiopol.it/userfiles/files/94091248947.pdfIn PDF document text
- http://www.goldenlantern.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161337f33685b3---bupedigefuxapeziwizanodan.pdfIn PDF document text
- http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b417311bf4---faloroj.pdfIn PDF document text
- https://szabolcsipeter.com/userfiles/file/53402894175.pdfIn PDF document text
- http://studiofranzoni.eu/userfiles/files/rosez.pdfIn PDF document text
- http://sancheonglittletheaters.com/upload/userfiles/2021/09/files/210905230457.pdfIn PDF document text
- http://radio-salsa.fr/php/rs/filesupload/file/lilofavobunuxedijorerikuw.pdfIn PDF document text
- http://artc-polymers.com/upload/images/files/rijunidizez.pdfIn PDF document text
- http://www.deopendeur.org/imgUser/file/fifejumadugurofozapur.pdfIn PDF document text
- http://budgettranslation.hu/sites/default/files/file/jefiregidisijuni.pdfIn PDF document text
- https://ssekolkata.com/ckfinder/userfiles/files/59033257881.pdfIn PDF document text
- https://chambres-hotes-aube-bleue.fr/userfiles/file/22710641443.pdfIn PDF document text
- http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/f21974973ed7063fba3cfd51e782ed08/47843668590.pdfIn PDF document text
- http://apvn.info/userfiles/file/7418660476.pdfIn PDF document text
- http://citranco.com/users/files/rifazejuzatog.pdfIn PDF document text
- https://machinex-machines.com/UserFiles/File/vowezud.pdfIn PDF document text
- http://fsf-vastroad.com/userfiles/file/6127146559.pdfIn PDF document text
- http://plymouth-logs.co.uk/ckfinder/userfiles/files/42588998562.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_off0000d947.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD947 | 17352 bytes |
SHA-256: 6d010ac1f4080dbb42396c259f7cef10dc4306a7021bc09799157428cb2f522e |
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font_01_sfnt_off00010621.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10621 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011e38.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E38 | 10868 bytes |
SHA-256: 03869d95155be4ac7f2f8941cf152e5ad5ee31b5f3168961c022d2f616302fee |
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