MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm or redirection scheme. The document body is heavily obfuscated and unreadable, preventing a deeper analysis of its specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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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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://atputasbaze.lv/images/userfiles/files/biwanada.pdf In PDF document text
- http://springgalleryng.com/Images_upload/files/modebelolugemurotuxab.pdfIn PDF document text
- http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613944b0cc220---92747049629.pdfIn PDF document text
- http://srcchaika.ru/files/uploads/files/bedemodafaxed.pdfIn PDF document text
- http://allamericannursing.com/userfiles/file/muxen.pdfIn PDF document text
- http://irinaburmistrova.ru/files/fudivesume.pdfIn PDF document text
- https://hagabb.ro/ckfinder/userfiles/files/16685831993.pdfIn PDF document text
- https://zlato-stribro-investice.com/upload/files/80914309014.pdfIn PDF document text
- https://turismo-galicia.es/ckfinder/userfiles/files/14450699421.pdfIn PDF document text
- https://sofupingame.net/calisma2/files/uploads/11956921370.pdfIn PDF document text
- http://artattack-concerts.de/files/file/70263054473.pdfIn PDF document text
- https://vienhung.com/webroot/img/files/31208139332.pdfIn PDF document text
- https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/cgvn8iu744gcjhldovvfn1u924/zanifodilipomizobit.pdfIn PDF document text
- https://annekienlen.fr/imagesfile/19042492465.pdfIn PDF document text
- https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/4cli231gr3gomv5d38gbsmfq66/lesaligafoberosemesez.pdfIn PDF document text
- http://3qbuy.com/CKEdit/upload/files/jifatimisowufa.pdfIn PDF document text
- http://musicfriend.vn/public/default/ckeditor/files/vulilaxotezipepuxoxu.pdfIn PDF document text
- http://vector-mebel.ru/uploads/files/35052941477.pdfIn PDF document text
- https://acryl-bg.com/userfiles/file/70199267497.pdfIn PDF document text
- http://tornyanggrace.com/upload/file/55600669991.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=how+to+change+android+version+on+my+tabletPDF link annotation
- 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_off0000e06f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE06F | 17516 bytes |
SHA-256: 45328bcdf5138ba316e03000281287b9cb3d29c8bf8a37bd7b26f5cbddd459ab |
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font_01_sfnt_off00010d64.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D64 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001257b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1257B | 11212 bytes |
SHA-256: 2c2c791be302a7f4e33ab6535ced7e3f99c1452aa3064b8bd70ddf4ac7be3146 |
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