MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm pointing to numerous disposable hosting domains, a common tactic for phishing or distributing further malware. Heuristics indicate the PDF is a link farm on disposable hosting and that it points to compromised CMS upload storage. The ML classifier and ClamAV detection strongly suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 6
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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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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://yao-cheng.com/uploadfiles/20210910162301.pdf In PDF document text
- http://tano-cable.com/d/files/18596627840.pdfIn PDF document text
- http://giteduguedesboires.fr/userfiles/file/37721846685.pdfIn PDF document text
- https://vanvoorst.info/uploaded/file/madexewo.pdfIn PDF document text
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/ce45jv6eded5s18mkhd35h5it4/xezerepimefudu.pdfIn PDF document text
- https://kibledergisi.net/resimler/files/lefesi.pdfIn PDF document text
- http://gpmpoolandspa.com/ckfinder/userfiles/files/76624838729.pdfIn PDF document text
- http://iuoooo.com/filespath/files/20210925081639.pdfIn PDF document text
- http://studioscoponi.eu/userfiles/files/jugewuzajeked.pdfIn PDF document text
- http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613813a5a312c---rogawazi.pdfIn PDF document text
- http://wdnederland.nl/file/76048882473.pdfIn PDF document text
- http://clinicaveterinariailmarzocco.it/userfiles/files/63435965651.pdfIn PDF document text
- https://alarrabnews.com/images/content/content/file/16976576524.pdfIn PDF document text
- http://hebakotb.net/userfiles/file/690735710.pdfIn PDF document text
- http://olgapolyakova.com/files/files/9219919750.pdfIn PDF document text
- http://lobanowscy.pl/userfiles/file/34890835280.pdfIn PDF document text
- https://deycaterers.com/ckfinder/userfiles/files/23843085611.pdfIn PDF document text
- https://szaniterplaza.hu/ckfinder/userfiles/files/14892765200.pdfIn PDF document text
- https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/s773rmjiidd75sigt5jo0ul3as/tixesewiwidomewaro.pdfIn PDF document text
- http://gidromall.ru/img/uploads/file/maposomaxipewolelu.pdfIn PDF document text
- http://www.pacautomarketing.com/file/21755887074.pdfIn PDF document text
- https://libertyrealestate.in/ckfinder/userfiles/files/98028995343.pdfIn PDF document text
- http://tpokebar.com/uploads/files/vemugonigesogagaxagebid.pdfIn PDF document text
- https://lbk-ingatlan.hu/uploads/file/54530576358.pdfIn PDF document text
- https://granitabrasive.com/editor_up/56182850684.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=open+play+appPDF 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_off0000b7de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB7DE | 18216 bytes |
SHA-256: 6bb53c71fd0ee143b203b8a4c0b6ddb16f45a8f4b28be7cc6826672f9ac545df |
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font_01_sfnt_off0000e67d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE67D | 9804 bytes |
SHA-256: dfc0f97528d017c9bc0e2c0dfbd2ba6f93aa9de27a664a09ee14265589947ac6 |
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font_02_sfnt_off0000fc2a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC2A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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