MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and a machine learning classifier. It contains an embedded JavaScript stream and a large number of external URIs, many of which point to compromised WordPress sites. These links likely serve as a lure to redirect users to malicious content or phishing sites, consistent with a phishing attack pattern. The embedded JavaScript may be used to further obfuscate the malicious intent or facilitate the download of additional payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://cructi.ru/uplcv?utm_term=8+withholding+tax PDF link annotation
- http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/160913c367aefd---jobinirurobib.pdfIn PDF document text
- https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/mshgksft9v8k7u35n8ntbs53kb/xiraderuwapijinupaloz.pdfIn PDF document text
- http://thedewakohchang.com/image/upload/File/owozasogiwojup.pdfIn PDF document text
- http://studiolauramoschini.it/userfiles/files/rodelulupupij.pdfIn PDF document text
- http://copy2d.com/ftp/image/file/32644850912.pdfIn PDF document text
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160711c3c4cfcc---49825726740.pdfIn PDF document text
- https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/07894491a9cec8e0eff536f6f6e792e0/takirifavusinov.pdfIn PDF document text
- https://lescourailleurs.com/upload/editor/file/15685683031.pdfIn PDF document text
- https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/56f652e2456e06bc0a000df7873e4d0e/takuburepiluwifawix.pdfIn PDF document text
- http://plovdivweek.com/app/templates/js/ckfinder/userfiles/files/bimalimuxumoragopigage.pdfIn PDF document text
- http://www.jobsincrete.gr/images/_user_na/file/gibulepokolonexuvajuwog.pdfIn PDF document text
- https://maugli24.ru/wp-content/plugins/super-forms/uploads/php/files/a545f310685e42eea0369b559856291c/zawolubixodusivadixe.pdfIn PDF document text
- https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adc9d3868ef---jadeve.pdfIn PDF document text
- http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607fa835e38ab---1844204749.pdfIn PDF document text
- http://trendybiz.in/usersfiles/file/jevojawejajekijifunowug.pdfIn PDF document text
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160dc182cc06e4---49848896536.pdfIn PDF document text
- https://nutricionintravenosa.com/wp-content/plugins/super-forms/uploads/php/files/49d0d44acfcf505f70ba57f2159342b5/laxedexepisepalati.pdfIn PDF document text
- http://designpavelzapletal.cz/files/file/fitatukorazoboruturebow.pdfIn PDF document text
- http://ikoi-es.club/yamituki-n/uploads/files/30203212287.pdfIn PDF document text
- http://www.sensible-seeds-premium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160787ec696278---kiwofebunupipokamal.pdfIn PDF document text
- http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/6238bec30b80a1e1d7a8a9daaf9dd824/fesiverefow.pdfIn PDF document text
- https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/160be9a97b0dcc---90264287726.pdfIn PDF document text
- https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160acbc850ff3a---94013901673.pdfIn PDF document text
- http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce2719d673---88242490551.pdfIn PDF document text
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/1aca3e20cdaed636588fb51ae46752d4/mukamefulitutiwupigi.pdfIn PDF document text
- http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af9419d51be---77236867724.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_off0000c636.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC636 | 15896 bytes |
SHA-256: 9568d9508771aeab4c02e30abe6591233722974f6d64ae339a91ebcc40be98c3 |
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font_01_sfnt_off0000ef51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF51 | 10428 bytes |
SHA-256: bef308b3c1797810c3f56b1faf6159da040a03af16bd97cdeace14bfecb14ee1 |
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font_02_sfnt_off000106b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106B0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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