MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious. It contains numerous links pointing to compromised WordPress upload directories and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature. No scripts were extracted, but the structure indicates a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
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://synerhu.ru/uplcv?utm_term=eat+well+4+less
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608b6eeab11f1---wojekuwuzu.pdf
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c860ffdf5b4---duzose.pdf
- https://invest.pl/userfiles/file/penamozaki.pdf
- https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/abc16f10e43e1d443f4a85b2c864576f/79405494071.pdf
- http://mariopresto.pl/userfiles/file/40074908008.pdf
- http://vksraja.in/fckeditor/upload/file/wurajan.pdf
- http://hoanggiaphatland.com/uploads/image/files/fodavafozan.pdf
- http://albatrossmrn.com/konadnew/userfiles/file/43590092359.pdf
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/780fe19fdfab682fd0a73597124d105c/pomativazokemito.pdf
- https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f58b57eb1f---49865509282.pdf
- https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/3af7e2851e6c534e018acea19da3f80b/tujedusif.pdf
- https://chezgregoire.fr/userfiles/ratiremitebesotiwax.pdf
- https://luyenthitoeic.info/userfiles/file/rowixilarit.pdf
- http://mtcclassof81.com/clients/0/0a/0a45bd3013a8cc77df817aa526a911b1/File/63261167875.pdf
- https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/e9105ea5cfd68c81d300d9ec9e070102/9873446966.pdf
- https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca1bcaacfe---18956361327.pdf
- http://caydinhlang.net/userfiles/image/file/84468261940.pdf
- http://xn--80aaffebba2apgigwiiececnggk9e4k.xn--p1ai/pict/file/riputifigavutanu.pdf
- http://saydersan.com/firma/files/93726820941.pdf
- https://asesoriagade.com/app/webroot/files/files/fadutidetoxotokalerusule.pdf
- http://dobrasekacka.cz/userfiles/file/78503252215.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_off0000f461.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF461 | 16792 bytes |
font_01_sfnt_off00010c73.bin22a61412d0f412da6f2386667eb07f10ac529436a3e6181e5278593edff9f8f9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C73 | 18588 bytes |
font_02_sfnt_off00013df0.bin633f20ea92468863f5ffaaf879be4a2c917cacad8f9d10157a28ff19dcdc8061 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13DF0 | 9832 bytes |
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