MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for delivering malicious payloads. The PDF also contains numerous external URIs, many of which point to compromised WordPress sites, suggesting a link farm used to distribute malware or facilitate phishing. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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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://queure.ru/uplcv?utm_term=cantaloupe+island+guitar+tab+pdf PDF link annotation
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608924c60da24---xorurusefanaj.pdfIn PDF document text
- https://jnfarley.com/wp-content/plugins/super-forms/uploads/php/files/siqnl5a2kp7bv0ki7dtfqs32s3/lalox.pdfIn PDF document text
- https://geneolock.com/locktactyuma/userfiles/file/53563056637.pdfIn PDF document text
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2caa981bfa---rojobigojal.pdfIn PDF document text
- https://hanahana.vn/media/ftp/file/17582819201.pdfIn PDF document text
- https://bomberosdenavarra.com/userfiles_nexo/files/mulan.pdfIn PDF document text
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607581bf15c7b---89463214045.pdfIn PDF document text
- http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4867668ced---fefamokujuxifu.pdfIn PDF document text
- https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/nc4r3kp3hsi69ms327plns9f07/25376678216.pdfIn PDF document text
- http://to-kajihan.net/js/upload/files/4522913812.pdfIn PDF document text
- https://nezrenpin.com/calisma2/files/uploads/muxorugisojimeporebujov.pdfIn PDF document text
- https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/1607a164f15221---fosogesemalifasivupixifod.pdfIn PDF document text
- http://pelesiuvalymas.lt/i/File/jigunopizelajakupujid.pdfIn PDF document text
- http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac5bfba8f68---63826330774.pdfIn PDF document text
- http://www.ecvbrass.ch/user/web/file/jazawotipidupelawodoj.pdfIn PDF document text
- http://jullien38.com/ressource/site-image/files/vanebex.pdfIn PDF document text
- https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16083f99083421---tofekubevoxumo.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000db33.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB33 | 5256 bytes |
SHA-256: fd7476f54ef953754c0046928d2b4a0ca2939626dc4cfdfcc6c61a219cb02cd1 |
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font_01_sfnt_off0000ed16.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED16 | 11448 bytes |
SHA-256: 991fbcc793132d2f0e0ae07ebb06d769507403d0810dd416240f0afa6c863f44 |
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