MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external links, many pointing to compromised WordPress sites or disposable domains, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body is heavily obfuscated and appears to be auto-generated content rather than user-readable text.
Machine Learning
- Nyx PDF Classifier malicious score 0.9984
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://medvor.ru/uplcv?utm_term=how+to+find+wifi+password+using+android
- https://rais.bg/uploads/file/pavemomoda.pdf
- http://hpcad.pl/Upload/file/jimopagiziwuvuwuwe.pdf
- http://jlicentral.com/images/authors/file/begumasapawurozujobopiva.pdf
- http://xn--ob0bjxt9h99icicrvkksa421cwwp7hiv4d6a.com/ckfinder/userfiles/files/refow.pdf
- http://hepiran.com/cache/fck_files/file/vonutojofi.pdf
- https://aramlasmerok.hu/uploads/file/giruw.pdf
- http://dansecyr.ca/pdf/file/28014303294.pdf
- http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16132bb14adb7e---61719801687.pdf
- http://xn----itbbfrdrdbd4bgy6gi.xn--p1ai/webroot/files/files/50349319941.pdf
- http://hemeringen.de/ckeditor_ablage/userfiles/files/bulizarutafukefalikavo.pdf
- https://heritran.vn/uploads/news_file/raberabamamuziwopapop.pdf
- http://domingo.hu/ckfinder/userfiles/files/20119136617.pdf
- http://nissanotogovap.com/uploads/images/files/lofafupitudijirupes.pdf
- http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/7c754253016081ccfc31f9b71092b5ed/3431888922.pdf
- http://vigen12.com/userfiles/file/tolik.pdf
- http://vitali-schulz-eiskunstlaufen.de/userfiles/files/80534032963.pdf
- http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136ea9632667---3214608144.pdf
- https://cafesca.info/ckfinder/userfiles/files/44273255484.pdf
- http://msslink.ru/userfiles/files/rumemijifebupiga.pdf
- https://prosaison.fr/userfiles/files/18915801188.pdf
- https://rajaketiga.com/contents/files/57445467184.pdf
- http://quartierdete.fr/uploads/fckeditor/file/dujawizutu.pdf
- http://xn----8sbaqfskngn1qi.xn--p1ai/userfiles/file/wubagumufidisuvodibezez.pdf
- http://abwlargo.com/uploads/files/21320849075.pdf
- http://aquarium-kochi.com/app/webroot/ckfinder/userfiles/files/79496455410.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_off0000b513.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB513 | 16792 bytes |
font_01_sfnt_off0000cd2a.bin653ea556095f472081d324f2501bbe30fbab924a2783c5006bdb250fbb93078b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD2A | 10672 bytes |
font_02_sfnt_off0000e585.bin1ffbda5b2c3c8b55e805031b51490eed01dcb2e0bb56c5d181f6da39ae41b8b9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE585 | 16296 bytes |
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