MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. Static analysis reveals it functions as a link farm, containing numerous URLs pointing to other PDF files hosted on various domains. Several of these URLs are hosted on compromised CMS uploads or disposable hosting, indicating a likely distribution or SEO manipulation scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://www.advokat.com/app/webroot/img/fck/file/pibuzenijak.pdf In PDF document text
- http://xn--d1achljw0b.xn--p1ai/content/upload/fipefedajifavivedevema.pdfIn PDF document text
- http://bogelaipigeon.com/upload/file/tipomawidimerixisipodagan.pdfIn PDF document text
- http://banphimchuot.com/userfiles/file/6115828508.pdfIn PDF document text
- https://peintures-descours.fr/fichier/files/palixuvutopidokotiguwonaj.pdfIn PDF document text
- http://robedecreateur.com/img/files/88958619428.pdfIn PDF document text
- http://bon-mar.com/fck_user_files/file/xefalesude.pdfIn PDF document text
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16096133b0a759---dobeb.pdfIn PDF document text
- http://americansemitruckparts.com/d/files/judun.pdfIn PDF document text
- https://kcharp.com/ckfinder/userfiles/files/fufuzodoxasiduzobi.pdfIn PDF document text
- http://mintaialuminum.com/d/files/98077353845.pdfIn PDF document text
- http://airconbank.com/upload/fckeditor/file/68186581926.pdfIn PDF document text
- http://thekitchendesignstudio.org/uploads/files/55101754748.pdfIn PDF document text
- https://www.harasportcenter.com/wp-content/plugins/super-forms/uploads/php/files/nk5elvomj2b9nqelc5sduammht/junisaroletivow.pdfIn PDF document text
- https://investainternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d48bd1f4c4---wewuniv.pdfIn PDF document text
- https://aawyx.com/sites/default/imageuser/file/42040935620.pdfIn PDF document text
- http://htwy.com/upload/file/6364525290.pdfIn PDF document text
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608276543871f---70264154994.pdfIn PDF document text
- https://chptravel.ir/data/file/kuzupenewitidulo.pdfIn PDF document text
- http://luxmeterthai.com/ckfinder/userfiles/files/69472999102.pdfIn PDF document text
- https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/q8fq6tgm58bemrbaa4il5ml9b8/69685412396.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=chlorine+intoxication+pdfPDF 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_off0000e989.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE989 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001019b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1019B | 18172 bytes |
SHA-256: 75c7a2f66421218b948a3e83e97d6d0421ab662c311b4c7b87a5cb547017acb1 |
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font_02_sfnt_off0001309f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1309F | 10680 bytes |
SHA-256: adbd2157fba9df31407a846be008c2ca9e44063a9dad099a760f2db1119b831a |
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