MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of external URIs and link farms, many hosted on disposable domains or compromised CMS uploads, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to lure users to malicious sites or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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 https://krisoc.ru/uplcv?utm_term=the+originals+download+toxicwap PDF link annotation
- http://vhz.cz/user-files/86819236538.pdfIn PDF document text
- https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/c04b52160546363054f9b20a7d94f109/83118467955.pdfIn PDF document text
- http://www.nachtruhe.info/up/files/duziliporonug.pdfIn PDF document text
- http://sun-green.de/ckfinder/userfiles/files/turaluxu.pdfIn PDF document text
- https://floridainvestment.cz/files/file/55524053925.pdfIn PDF document text
- http://aurora-c.jp/files/files/77170892515.pdfIn PDF document text
- http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613524aec1774---11028092748.pdfIn PDF document text
- http://nhasachthunam.com/upload/files/zoniwebogoze.pdfIn PDF document text
- http://frutapac.com/ckfinder/userfiles/files/pajekivutifaleliwafeb.pdfIn PDF document text
- http://edeins.com/userfiles/file/ravinuvevukixisowafaruf.pdfIn PDF document text
- http://biosafety.biz/ckfinder/userfiles/files/52351063287.pdfIn PDF document text
- http://dealershop.es/camarasegovia/userfiles/file/pojutugifefixu.pdfIn PDF document text
- https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/32818675b5729cd3f013aeb189984ac0/12343373872.pdfIn PDF document text
- http://apartmany.cucoriedka.sk/data/files/71115707425.pdfIn PDF document text
- https://ms02bet.com/contents/files/kedujir.pdfIn PDF document text
- https://digireg.lu/upload/lupolotuvijapile.pdfIn PDF document text
- http://gma.ge/admin/ckeditor/ckfinder/userfiles/files/lijukaler.pdfIn PDF document text
- https://perfecthospitals.org/FCKeditor/file/58515677741.pdfIn PDF document text
- https://europawindow.com/app/webroot/img/main_content/files/40376154876.pdfIn PDF document text
- http://rymwid-training.com/userfiles/file/dosivuwiwimir.pdfIn PDF document text
- http://location-appartement-venise.com/italie_documents/files/romakiditifek.pdfIn PDF document text
- https://suma.ca/upload/editor/file/87339466528.pdfIn PDF document text
- 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_off0000de8b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE8B | 17272 bytes |
SHA-256: 88b6c1fe631e4ce8f295860c9bee1e869095d76c10bd0054fb835664843d6cbb |
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font_01_sfnt_off00010be3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BE3 | 10944 bytes |
SHA-256: 186fc3c55b49af3d9db9a08c2bdd2a6e071d3648894de6b87c995cd01225e14e |
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font_02_sfnt_off0001251c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1251C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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