MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which are hosted on disposable domains or compromised CMS upload directories, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://crewmak.ru/uplcv?utm_term=super+tank+rumble+hack+apk PDF link annotation
- http://rrarental.org/upload/file/99759649739.pdfIn PDF document text
- http://meetburgerusa.com/uploads/files/fabezofemumapubeletoz.pdfIn PDF document text
- http://supair-lux.hu/ckfinder/userfiles/files/jakoxikufokusebat.pdfIn PDF document text
- http://unseretochter.com/images/file/44597286501.pdfIn PDF document text
- http://daisytalavera.com/userfiles/files/20200572768.pdfIn PDF document text
- http://ageofwonders.buka.ru/sadm_files/33966688030.pdfIn PDF document text
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16134cea0c47c5---28123235511.pdfIn PDF document text
- https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/3d9617d971c480e778b69f9b71d973fe/87663950917.pdfIn PDF document text
- http://fsnmmaterials.com/UPFILE/userfiles/files/85102834863.pdfIn PDF document text
- http://www.hro.ait.ac.th/js/ckfinder/userfiles/files/11440899400.pdfIn PDF document text
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/93e4006a94b18ea38166bda34bc8ca6b/5440251885.pdfIn PDF document text
- http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/31348534531.pdfIn PDF document text
- http://pm-property.pl/userfiles/file/97101204153.pdfIn PDF document text
- https://literie-depot.fr/UserFiles/file/66036432061.pdfIn PDF document text
- http://bet-balance.com/userfiles/file/kopabo.pdfIn PDF document text
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/161385e024a15c---65004440828.pdfIn PDF document text
- http://noxsun.com/jingkelun/userfiles/files/20210910221347.pdfIn PDF document text
- http://wksystems.net/HotelEstimator/userfiles/file/35358155455.pdfIn PDF document text
- http://fandimnarodaku.cz/upload/file/murafabidememomefubatev.pdfIn PDF document text
- https://textolinguisticsolutions.com/upload/editor/file/wusaxujubepuvidubojugap.pdfIn PDF document text
- http://oticonshop.net/ckfinder/userfiles/files/58622538721.pdfIn PDF document text
- http://dralituncer.net/userfiles/file/21644071872.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_off0000c900.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC900 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e112.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE112 | 18528 bytes |
SHA-256: 7ce50e508eabbea086ab2d0e3a4d3839bcbe0b75ddc8f8249863e4fcb10ed9b8 |
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font_02_sfnt_off000111cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111CF | 10668 bytes |
SHA-256: 686b1eed331f22880b9137944c8c4d46ee8be6e0c7ce410d35a84d83fbc4ebf3 |
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