MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier with high confidence. Static analysis revealed it functions as a link farm, containing numerous URLs pointing to compromised WordPress sites. These sites, in turn, host other PDF files, suggesting a multi-stage attack designed to lead users to malicious content, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9919
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://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/ccc40f285180c81707a81c336c74af05/vunozukelanaka.pdf
- https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/161281cd152772---bodezenipikigegowevako.pdf
- https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160a6864c243d4---gupalon.pdf
- http://gibisch.info/files/files/3335903863.pdf
- https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/160826b739bf7f---vilexixikodibegixetize.pdf
- http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/f17ef6d952fea520ef77cc1af1f694a4/51665738412.pdf
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608aabd60b499---97817369659.pdf
- https://by-express.com/upfiles/editor/files/dakukevodar.pdf
- http://modnyi-buket.ru/uploads/files/2151557731.pdf
- http://asckhn.com/acskhn/userfiles/file/zofoxupafi.pdf
- http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/dc8eb3cfad462e36e3a68c994e526d9e/31816294475.pdf
- http://cuboni.com/uploadfile/hong202106111900444468.pdf
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/61f541c11905d3c5beddf9cc2fb84f23/liralixakevavadijenugabi.pdf
- https://noticky.net/akce/fotky/file/56488248685.pdf
- http://aihyang.com/userfiles/file/71708375882.pdf
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/1606c68dfb7b1f---46385306249.pdf
- https://cleartunemonitors.com/ckfinder/userfiles/files/nitepisut.pdf
- http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a14c3c8b79b---kamamipuk.pdf
- http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca9143154b---83305483704.pdf
- https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/0gv69n1m6k5r8cq53julns3kmu/80662379385.pdf
- http://www.pics4us.de/userfiles/file/54233281281.pdf
- https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/agdc0bsoduapg6edneqjtk0fih/bawegixafe.pdf
- http://debandhelder.nl/ckfinder/userfiles/files/dasenakobolafegekulemifir.pdf
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608bb9f0ce0b8---98377655490.pdf
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609841437867a---mupizaferipebexagi.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=jalapeno+cheese+bread
- http://e1pl2.nazwa.pl/busy/fotki/file/67974738927.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_off0000ed52.bin61a3654195ff6644730f3090551dd666dd9da70e3bc19990bbdacdc5b06d86fa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED52 | 18980 bytes |
font_01_sfnt_off00011d7a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D7A | 16792 bytes |
font_02_sfnt_off00013591.bin6860a3ad426c00232ab1acf49caa1841174c622045778e47594f72789966bedd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13591 | 10552 bytes |
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