MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains multiple heuristics indicating it is a phishing lure, specifically using an SEO redirector to a compromised WordPress upload. The primary URL identified is https://chcial.ru/uplcv?utm_term=lol+roles+and+lanes, which likely leads to a malicious site. The ML classifier and ClamAV detection strongly support the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 0.9858
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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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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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://chcial.ru/uplcv?utm_term=lol+roles+and+lanes PDF link annotation
- http://metabolit-plus.ru/files/file/waxekidevileluj.pdfIn PDF document text
- http://wildpflanzen-planung.de/file/fasoninase.pdfIn PDF document text
- https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/cq72u4ga53p7jo300s2s655dpq/49460252766.pdfIn PDF document text
- http://anvlaw.com/userfiles/file/13544612801.pdfIn PDF document text
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6d40bb8590---27010210354.pdfIn PDF document text
- https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/d29ad96fa6f6d1e8348fdfaa3efce585/koxaleweresenapetekiva.pdfIn PDF document text
- https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/b60cf7e416d15cfd3abff7eeea03f2c3/42415199146.pdfIn PDF document text
- https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/b723aa54d30cd4d7b7de79af7730fc66/59223598692.pdfIn PDF document text
- https://humble-brag.com/wp-content/plugins/super-forms/uploads/php/files/iim0hta76sghkmn52sudu0129m/3532025083.pdfIn PDF document text
- http://vote4dannybarry.com/clients/2/2f/2f5d4f67c16906f9b09010289963de11/File/47262838893.pdfIn PDF document text
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/0aefc31f7c6adb19f843f4bb72a81a38/66652504233.pdfIn PDF document text
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16095ab9f682f5---galodesa.pdfIn PDF document text
- http://kasystemofkarate.com/clients/861259/File/zevozigiviraxut.pdfIn PDF document text
- http://madmojo.com/fckupload/file/3476569142.pdfIn PDF document text
- http://xn----8sbnbd9chja.xn--p1ai/userfiles/file/82802543591.pdfIn PDF document text
- https://partnyor.az/userfiles/file/93840172173.pdfIn PDF document text
- https://sgdivorcelawyers.com/wp-content/plugins/super-forms/uploads/php/files/6198b8bc88ad0e94690b126ff9fbb768/visuxusufafilerovetixusog.pdfIn PDF document text
- http://bettynblue.com/upload/fck_img/20210702/file/24575854029.pdfIn PDF document text
- http://planbmedia.hufiles/6561934041.pdfIn PDF document text
- http://ptairsupply.com/userfiles/file/1755127023.pdfIn PDF document text
- https://synodradomski.pl/userfiles/file/9025047270.pdfIn PDF document text
- https://butterfly-propertymanagement.com/userfiles/file/96440994775.pdfIn PDF document text
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bc9c948af2b---8922007573.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_off0005f284.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F284 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00060a96.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60A96 | 20672 bytes |
SHA-256: 3542a2e7d7f03f169aaf06a3f8bd16d32e9a280af935047603d1229933912f7e |
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font_02_sfnt_off00063d20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63D20 | 10008 bytes |
SHA-256: e87d64a6604d7b9e3d1df44cbae873eb6d28162addc8cb4cadb33ae9c93a78d7 |
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