MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm pointing to compromised and disposable hosting, suggesting an attempt to lure users to malicious sites. The embedded URLs and the nature of the heuristics strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://hkxhjfc.ltd/uploads/files/20210922032625.pdf In PDF document text
- https://horgaszvelem.hu/ckfinder/userfiles/files/nedepanogijonapizo.pdfIn PDF document text
- https://www.prieur-equipement.com/ckfinder/userfiles/files/52829641350.pdfIn PDF document text
- http://phutungvespaco.com/luutru/files/pawub.pdfIn PDF document text
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1612f70361e69e---1192159887.pdfIn PDF document text
- http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138a93eb1a91---jilitifunibomubi.pdfIn PDF document text
- https://ibextrail.com/editor-images/foxerenudub.pdfIn PDF document text
- https://carrieres-pierre.com/userfiles/file/bapemes.pdfIn PDF document text
- http://hsaltsj.com/uploads/files/29301164657.pdfIn PDF document text
- https://rubin2000-distribuitorshop.ro/userfiles/file/98285060106.pdfIn PDF document text
- http://stimatacasa.eu/userfiles/files/muteketenirinaxutatodoro.pdfIn PDF document text
- http://6nergy.fr/6nergy/sites/default/user/file/41708038138.pdfIn PDF document text
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614617e815518---30808186451.pdfIn PDF document text
- http://swissies.lt/ckfinder/userfiles/files/79181992688.pdfIn PDF document text
- https://tenekedjieva.com/uploads/file/40070172533.pdfIn PDF document text
- http://www.sictombbi.fr/ckfinder/userfiles/files/mavifun.pdfIn PDF document text
- https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/2d354217e082176d2c0c60b681fc4381/4195800095.pdfIn PDF document text
- https://misbahelmudii.org/ckfinder/userfiles/files/jufadexokov.pdfIn PDF document text
- http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16141e09141580---kirasizez.pdfIn PDF document text
- https://motodubai.com/uploaded_images/files/jewodijabadiwijafolumam.pdfIn PDF document text
- https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614acf773e77a---gijaridudat.pdfIn PDF document text
- http://twfindia.in/userfiles/files/7398959942.pdfIn PDF document text
- https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/0f902b40869da98b3360ee49be77352c/tazugi.pdfIn PDF document text
- http://sinproval.it/userfiles/files/36247053468.pdfIn PDF document text
- http://thankschicken.com/uploads/files/gematiwokubibatotofalub.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=sword+art+online+alicization+season+3+part+2PDF 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_off000109d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109D1 | 11020 bytes |
SHA-256: 21188dbd0cc8837de0a3bc1a7640dd7fc85eb27390dfe3554f1a660d27c95ddf |
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font_01_sfnt_off000123ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123AB | 21928 bytes |
SHA-256: 3ed9413a84a31c7c0cd67acbf4365f394f2b89f936134471d635d704daf73f95 |
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font_02_sfnt_off00015cb2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15CB2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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