MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file is identified as malicious by ML classifiers and ClamAV. It employs a common phishing tactic by presenting itself as an image-only document, likely a screenshot, to lure users into clicking embedded links. The numerous external URIs point to compromised websites and disposable hosting, suggesting a campaign to distribute further malicious content or conduct phishing operations. No scripts were extracted, but the PDF structure and URL patterns are indicative of a malicious lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 66 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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=android+connect+wifi+without+internet PDF link annotation
- https://clubslotalmatriche.com/calcas/file/fusuwigotedotasulox.pdfIn PDF document text
- https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/le8pti5en8s85rpr6oodh98al4/xavekipamatiwupikalaku.pdfIn PDF document text
- http://spiregene.com/image/files/20210901_100116.pdfIn PDF document text
- http://zaintik.org/files/galeria/files/sobebemujowijaru.pdfIn PDF document text
- http://hftyby.com/upload_fck/file/2021-9-2/20210902123535997596.pdfIn PDF document text
- https://nutstudio.it/userfiles/file/suwirokali.pdfIn PDF document text
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16135ca61a3fcb---pajewaxozuwiwokuwuvo.pdfIn PDF document text
- http://bacsiha.com/public/ckfinder/userfiles/files/65957788470.pdfIn PDF document text
- https://funke.be/data/file/boxojenu.pdfIn PDF document text
- https://bursaphotofest.org/uploads/files/zaxewogakiwirebekozefo.pdfIn PDF document text
- https://asiantms.com/ckfinder/userfiles/files/32124816894.pdfIn PDF document text
- http://bennett-legal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wilewavatenikunimevika.pdfIn PDF document text
- https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/1e39e7f976c5d987451a2ecc6e6094ab/46733559429.pdfIn PDF document text
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/1pg09rj0ec98fhp7caqk76gsaj/61381685240.pdfIn PDF document text
- https://thebookonpersonaltransformation.com/FCKeditor/file/domakagakim.pdfIn PDF document text
- http://vilocom.net/webroot/img/files/jadaxizefetaxagur.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_off0000aa44.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAA44 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c256.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC256 | 13576 bytes |
SHA-256: 67f1bebec0e241b84c4915f9a5c24baa7dc4055576f95d59f95b998ef7565752 |
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font_02_sfnt_off0000e3cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3CF | 10364 bytes |
SHA-256: 4812d92c2cb536b27e0aadd2e93d9e6aa28ad385b3abdc9e494725a76ad76786 |
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