MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a malicious PDF that contains embedded JavaScript, indicating an attempt to execute code upon opening. It also features a link farm pointing to compromised WordPress sites and other domains, likely serving as a phishing lure or a distribution point for further malicious content. The ML classifier and ClamAV detection strongly support its malicious nature, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://inwebjor.ru/uplcv?utm_term=l+and+t+finance PDF link annotation
- https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/de0c51acfb5b8acd5a87c39c3683369b/95267999264.pdfIn PDF document text
- https://cs-nippon-cp.com/mailmagazine/upload/files/16790244246.pdfIn PDF document text
- https://papersacksfactory.ae/images/bulk_images/files/95435036104.pdfIn PDF document text
- https://biblioteka-koneck.pl/ckfinder/userfiles/files/63419400928.pdfIn PDF document text
- https://centaur.vri.cz/docs/files/91935913230.pdfIn PDF document text
- https://www.shamshabaddiocese.org/files/js/ckfinder/userfiles/files/vagedosolafogepiwebovizu.pdfIn PDF document text
- http://gshosnab.ru/userfiles/file/85539059885.pdfIn PDF document text
- https://excellencetogether.com/img/files/file/bozuxipivepenarozux.pdfIn PDF document text
- http://studiolaviano.it/userfiles/files/10232216025.pdfIn PDF document text
- http://xn--90aoa5aj.xn--p1ai/ckfinder/userfiles/files/53732894466.pdfIn PDF document text
- http://fuguchair.com/upfolder/e/files/20210909200444.pdfIn PDF document text
- https://peisheng.org/uploads/ckfiles/files/613c3583598d9.pdfIn PDF document text
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16137837c94418---kiboriwodavenapijasok.pdfIn PDF document text
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130534c80331---19615459436.pdfIn PDF document text
- http://teen.plovdivweek.com/js/ckfinder/userfiles/files/naxemujumawitelawumowiw.pdfIn PDF document text
- http://falcon.dk/sites/default/files/webfm/51897497880.pdfIn PDF document text
- http://dungcucaytrong.com/images/files/23773881176.pdfIn PDF document text
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613dcba6b2119---sojuziwidejana.pdfIn PDF document text
- http://conelser.hu/fck_uploads/file/58197026618.pdfIn PDF document text
- http://chinatriage.com/ckfinder/userfiles/files/80297631330.pdfIn PDF document text
- https://proia.bg/userfiles/file/misotalolevosozobajur.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161421124d4714---28272078108.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_off0000ee6c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE6C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001067e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1067E | 19016 bytes |
SHA-256: b4082cbb09647bdb43f83fe4f94fd916c94e85d300d3c965860ada57ea070999 |
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font_02_sfnt_off000138af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x138AF | 9992 bytes |
SHA-256: b06d7d435821e8b0c196ec4fc0ff4cdd51cc60b1c295711124f995ddd529ffba |
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