MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged as malicious by both ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised or disposable hosting, suggesting it functions as a link farm. The presence of these links and the overall structure strongly suggest a phishing or malware distribution campaign, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://archism.ru/uplcv?utm_term=ask+mantik+intikam+episode+1+english+subtitles
- http://xn--80aa5alfu.kz/file/resunigisaxigoregekomu.pdf
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161319f332483d---11122690907.pdf
- http://car-zone.sk/data/data/file/ripaxo.pdf
- http://florylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/32149388531.pdf
- http://www.fdconsult.qa/public/uploads/cms_files/14044509066.pdf
- http://harposwebdesign.nl/app/webroot/files/userfiles/files/fiwedo.pdf
- http://shceping.com/upFile/photos/2021-9/file/pufebikomarevot.pdf
- http://tischlerei-schlusche.de/sites/default/files/file/tomaravarotes.pdf
- http://vipnjl.com/userfiles/files/22565371601.pdf
- http://style4.allwebeasy.com/userfiles/files/72512423622.pdf
- http://amunt.madteam.net/ckfinder/userfiles/files/vujamaxiz.pdf
- https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613dda23a6ecb---78421807240.pdf
- http://ephtour.com/FileData/ckfinder/files/20210909_8A990E232C8B129E.pdf
- https://creativitagh.com/pevron/www/img/file/93608490557.pdf
- http://cnhhgj.com/upfiles/userfiles/file/xusokigojubovuzij.pdf
- http://abwjefferson.com/uploads/files/17640850291.pdf
- http://studiolorenzoni.eu/userfiles/files/powisitogonasuxivosamo.pdf
- http://ip-malkov.ru/uploads/files/laboxajopozapizavu.pdf
- https://ferado.vn/userfiles/file/41405522513.pdf
- https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16141a5c4d6607---rawovofejisilaxezabek.pdf
- https://luminex.pl/upload/file/62998076590.pdf
- https://gagiongvitgiong.com/ckfinder/userfiles/files/liwunesavuveborimurakopap.pdf
- https://nusantarabet4d1.com/contents/files/55420955969.pdf
- http://toszegisuli.hu/userfiles/file/gowiva.pdf
- https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/eeulftpt3r9dqfqubmsftedga3/raboziwipulo.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_off0000c0cc.bin2bc50fc06c1cb5cfb0f5f4ef99d6c818221cf6d8666693947d44de06ac297cd3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC0CC | 16232 bytes |
font_01_sfnt_off0000eaa0.binb97696a21537dc2315a2914d16fed54043867a1ec5f107a104a3304a85a7ca24 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAA0 | 11104 bytes |
font_02_sfnt_off000103ef.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103EF | 16792 bytes |
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