MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links pointing to various domains, a technique commonly used in link farms to obscure malicious intent and potentially evade detection. The ClamAV detection and ML classifier strongly indicate maliciousness, with the heuristic 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' specifically highlighting a link to a compromised WordPress upload storage. The presence of multiple 'unknown' reputation URLs suggests a coordinated effort to host malicious content across different domains.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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 http://gaia-onlus.org/userfiles/file/jurirenejakew.pdf In PDF document text
- http://citygclub.com/ckupload/files/wokuzaxo.pdfIn PDF document text
- http://eptesteplelek.com/uploads/file/fizaw.pdfIn PDF document text
- http://carzip.biz/files/uploads/files/88124237812.pdfIn PDF document text
- https://mastirz.com/userfiles/files/woparozasofuketozeze.pdfIn PDF document text
- http://gardena.crazyrockinsushi.com/uploads/files/71084482449.pdfIn PDF document text
- http://turnwealthy.com/ckfinder/userfiles/files/zilasowinenomowamuxizop.pdfIn PDF document text
- http://dispensapertutti.com/userfiles/files/fexaba.pdfIn PDF document text
- http://geasit.it/userfiles/files/6285851380.pdfIn PDF document text
- https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/e9c2416fbe24e695dfc254faa63b332d/14964831757.pdfIn PDF document text
- http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/1613938243f713---37525766866.pdfIn PDF document text
- http://oio.cn/uploadfiles/files/sasokizizirizinibujunenet.pdfIn PDF document text
- http://paglialonga.it/userfiles/files/mazenatimadoxasaligodotil.pdfIn PDF document text
- http://xn--80ahcjevtqq.xn--p1ai/ckfinder/userfiles/files/20179514916.pdfIn PDF document text
- http://xn--3bsx3iw22bmot.com/filespath/files/20210904210134.pdfIn PDF document text
- https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/09c5fc3032fbb8360aa98ef8e28313f7/34906147803.pdfIn PDF document text
- http://dga.gr/ILC/img/file/lesirakugibolemejefoni.pdfIn PDF document text
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140b11370439---96802404210.pdfIn PDF document text
- http://yishiweb.com/upfiles/files/20210910_225101.pdfIn PDF document text
- https://www.ventisilva.com.br/ckfinder/userfiles/files/13558237643.pdfIn PDF document text
- https://dom4m.com/userfiles/files/95512651370.pdfIn PDF document text
- https://slotsonline.ro/app/webroot/files/userfiles/files/41232708217.pdfIn PDF document text
- https://kapefashion.com/files/files/95106070382.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=sat+writing+and+language+practice+pdfPDF 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_off0000d5a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5A0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000edb7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDB7 | 10768 bytes |
SHA-256: b75d041b4c9482374bb213ba98d7fcf2d82f89eea30ab786ac767e40bb1aaade |
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font_02_sfnt_off0001066c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1066C | 16576 bytes |
SHA-256: ef04b3b8e6f7aa610cf7aff56918fea655adc14053768176efa1b532f85bccd8 |
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