MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF is identified as malicious by ML classifiers and ClamAV, exhibiting characteristics of a phishing lure with an image-based design and a click-outward action. It contains numerous links, many pointing to compromised CMS uploads, including a WordPress site, suggesting a distribution mechanism for malicious content. The document's structure and embedded URLs indicate an attempt to redirect users to malicious sites, likely for further exploitation or credential harvesting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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 1 text block(s), carries a click-outward action, and is only 67 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://catamma.ru/uplcv?utm_term=chopra+and+meindl+2016+pdf
- https://sadhankendra.org/erc/media/jurorekezigevobogira.pdf
- http://zenithmetals.com/files/30526658295.pdf
- http://519pf.com/userfiles/files/xuriletafa.pdf
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/rubataf.pdf
- http://palestraarkadia.it/userfiles/files/44684472930.pdf
- http://usateatop.com/_upload/files/vurinaranefesobi.pdf
- https://hsse.hssanesteban.cl/files/44365597871.pdf
- https://gs-hemeringen.de/ablage/userfiles/files/dexudapelibafisa.pdf
- http://vwtint.com/userData/board/file/ligerimepozapazagofekus.pdf
- https://niceppl.com/images/file/zokuzixuwilepiw.pdf
- http://tandprotheses.com/ckfinder/userfiles/files/65444952098.pdf
- https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/6bad5f566954b1e9ba4e602d8586986f/zojiwelizupon.pdf
- http://lubrifianti-auto.ro/files/file/nefobawimumuj.pdf
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/1220b0ed0f5f90805ed117177224aa0a/desoba.pdf
- https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/3b58d09abef3229d176bb55b9b292eb4/fiwurevanobimaburu.pdf
- http://shengyaweb.com/uploadfile/file/2021090213375746.pdf
- http://avanti.pl/userfiles/file/63980854691.pdf
- http://hla.vn/upload/files/32156039593.pdf
- http://hocikto.info/userfiles/file/damabe.pdf
- http://k1a.ru/images/files/file/33812064431.pdf
- http://evo-models.com/uploads/userfiles/files/wobumukipa.pdf
- https://marlin-aquarium.ru/ckfinder/userfiles/files/2770772492.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ab43.bin04a766a915d89fbc4ea64ac3db92f621de25e2870351172a426eea67069f5414 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAB43 | 14644 bytes |
font_01_sfnt_off0000cf62.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF62 | 16792 bytes |
font_02_sfnt_off0000e779.binb7570dfd902d794d4be49a2eb24fc4a2ed5c825bbac116fa996cbe9e63a9e3dc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE779 | 10988 bytes |
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