MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. Static analysis revealed it functions as a link farm, with numerous embedded URLs pointing to potentially compromised websites or disposable hosting. The presence of 'utm_term' parameters in some URLs suggests an attempt to track user engagement, common in phishing campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9979
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://synerhu.ru/uplcv?utm_term=top+gear+123movies PDF link annotation
- http://upoart.com/ckfinder/userfiles/files/89853049798.pdfIn PDF document text
- http://szyqjsj.com/UploadFile/file/20210914150910265.pdfIn PDF document text
- https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/2b9559ad957680691fa9820c00e80417/94024294476.pdfIn PDF document text
- http://reicar.dk/userfiles/file/35561633784.pdfIn PDF document text
- http://hexindechem.com/upload/files/4304321899.pdfIn PDF document text
- http://studioindelicato.com/userfiles/files/98582410473.pdfIn PDF document text
- http://sparkpro.lv/content/file/33457309503.pdfIn PDF document text
- https://tmtteks.com/files/livojekuwodi.pdfIn PDF document text
- https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/nhh5g0nod03n0adh02piubcg23/kevedobezujeni.pdfIn PDF document text
- https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/jvesrjdg1cqfku53lsg3gcevlq/vusulirebulekubagubuxog.pdfIn PDF document text
- https://nobleanimalsanctuary.org/wp-content/plugins/super-forms/uploads/php/files/tmp/59366368878.pdfIn PDF document text
- http://elliptical-trainers.ru/ckfinder/userfiles/files/gadakudumoj.pdfIn PDF document text
- http://bycongroup.com/UserFiles/file/losililamusud.pdfIn PDF document text
- https://soenen-pneus.com/upload/file/75384047648.pdfIn PDF document text
- https://ostrichtours.com/ckfinder/userfiles/files/tusalepoworo.pdfIn PDF document text
- http://patp1ryb.ru/media/file/24086187261.pdfIn PDF document text
- http://incomingmakedonia.com/files/files/pudizadorafowoviw.pdfIn PDF document text
- https://zapret-rf.org/web/img/podborky/files/pudiwukaposifapaj.pdfIn PDF document text
- http://xn-----6kcaheblih5ab0a6afqbzoqe.xn--p1ai/ckfinder/userfiles/files/mifutiropurane.pdfIn PDF document text
- https://wineart.online/userfiles/file/lened.pdfIn PDF document text
- https://soportedevida.mx/ckfinder/userfiles/files/walazugizeti.pdfIn PDF document text
- http://toyotarent.kr/FileData/ckfinder/files/20210920_D6F6EF5EBA87DFA5.pdfIn PDF document text
- http://dream-mebel.com/pic/file/7469354609.pdfIn PDF document text
- http://meyergarden.com/ckfinder/userfiles/files/kimatokajezux.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_off0001497a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1497A | 10720 bytes |
SHA-256: 83fd334fc603e621a9cb91b94e07685f7be3ebfee65f63e15fc89a37c7ed261f |
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font_01_sfnt_off00016245.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16245 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00017a57.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17A57 | 20288 bytes |
SHA-256: 90a14648b17f976ff8038e347cc53a4ec4e41582403fdbafec686fa1890c6564 |
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