MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains numerous embedded URLs, many of which are part of link farms hosted on disposable domains or compromised WordPress sites, indicating a phishing or redirection scheme. The presence of 'utm_term' parameters in some URLs suggests tracking or campaign-related activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://chcial.ru/uplcv?utm_term=julia+quinn+novels+read+online PDF link annotation
- http://vecsecity.info/editor_up/58042940816.pdfIn PDF document text
- https://printjet.pl/pliki_user/File/53066462931.pdfIn PDF document text
- https://menu2uplus.com/images/file/26222101565.pdfIn PDF document text
- https://kham.vn/userfiles/file/40295122789.pdfIn PDF document text
- http://basar-hemeringen.de/ablage/userfiles/files/27822694939.pdfIn PDF document text
- https://ubk-sad.de/azubi/userfiles/files/wotiwalobaxufizege.pdfIn PDF document text
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/bee12515680d979999d84f5697f3952e/92097849214.pdfIn PDF document text
- https://acrgroup.nl/userfiles/file/56007471729.pdfIn PDF document text
- http://lavalnerina.it/userfiles/file/lakizivinunomo.pdfIn PDF document text
- https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/ba79156f92a39bcf24f49e15336ba4db/56912238657.pdfIn PDF document text
- http://ediliziaunoaventi.com/userfiles/files/kibejuti.pdfIn PDF document text
- http://theofficefurniturestore.com/ckfinder/userfiles/files/notoz.pdfIn PDF document text
- http://tutaylamhet.com/storage/ckfinder/files/vifukazojero.pdfIn PDF document text
- http://boletin.alicantehosteleria.com/lib/ckfinder/userfiles/files/dijejijeluribuk.pdfIn PDF document text
- http://gzmzwl.com/Uploadfiles/files/fezupegabulina.pdfIn PDF document text
- http://splogservice.ru/content/file/mured.pdfIn PDF document text
- http://hoaiduc.edu.vn/ckfinder/userfiles/files/lefikewerave.pdfIn PDF document text
- https://santchavarabed.in/ckfinder/userfiles/files/6671242573.pdfIn PDF document text
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c96efb9cbf---vijadozivegesudozevegozad.pdfIn PDF document text
- http://www.texaco.bargiel.com.pl/ckfinder/userfiles/files/bawodokofagutipadu.pdfIn PDF document text
- http://nhatminhtrading.vn/app/webroot/uploads/files/buzixuwifil.pdfIn PDF document text
- https://showdetango.com/bafa/userfiles/file/potegaxofarugewu.pdfIn PDF document text
- http://atamergranit.com/userfiles/file/12442132641.pdfIn PDF document text
- https://apelhijau.com/contents/files/70291120657.pdfIn PDF document text
- https://wolfgang-photography.com/userfiles/files/36686726559.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_off0000d965.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD965 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f177.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF177 | 17768 bytes |
SHA-256: de2286028c18652a3fe1ae09310495d0900650752e4c34e4f2649460067deda4 |
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font_02_sfnt_off00011f4d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F4D | 10444 bytes |
SHA-256: a7cbb547a6f94784767bfd46865d42fb30ada29ddd8983b6782e94e1583601fc |
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