MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is identified as malicious by ClamAV and an ML classifier, with heuristics indicating embedded JavaScript and a link farm pointing to compromised CMS uploads and disposable hosting. The embedded JavaScript likely facilitates the redirection to external URLs, which are numerous and varied, suggesting a phishing or malware distribution campaign. The primary attack vector appears to be spearphishing attachment, with the PDF acting as a lure to external malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9907
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://philabc.ru/uplcv?utm_term=normative+influences+on+impulsive+buying+behavior+pdf PDF link annotation
- http://metabolit-plus.ru/files/file/wepoletifux.pdfIn PDF document text
- https://catwalkdogcome.com/editor_upload_image/file/getejuvabavanawenuni.pdfIn PDF document text
- http://ok-poland.com/userfiles/file/35270703726.pdfIn PDF document text
- http://xn--j1aii.su/userfiles/file/10321243788.pdfIn PDF document text
- http://staples1981.com/clients/b/ba/ba027a536d51c1d997ee76cae6dc9017/File/51503844603.pdfIn PDF document text
- http://gunjanjain.com/app/webroot/js/uploads/files/tujaw.pdfIn PDF document text
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/16071d964db8de---lujipexesipavuneparosu.pdfIn PDF document text
- https://www.pollackmihalyiskola.hu/ckfinder/userfiles/files/bavufirujebetolediv.pdfIn PDF document text
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a288ff9ea5f---97812766343.pdfIn PDF document text
- https://certifiedcollisionrepair.com/home/cert/public_html/ckfinder/userfiles/files/veloruro.pdfIn PDF document text
- http://www.look4job.gr/images/_user_na/file/23691294258.pdfIn PDF document text
- http://chanakol.com/ckfinder/userfiles/files/jiginexomujuvopuwezef.pdfIn PDF document text
- http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1ddbc3cebc---85298441874.pdfIn PDF document text
- http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084717d75982---29862899067.pdfIn PDF document text
- http://yogasol.cz/ckfinder/userfiles/files/8371352206.pdfIn PDF document text
- https://alllegaltask.com/wp-content/plugins/super-forms/uploads/php/files/ccfca3t2pls1h1naiqq6cl674f/19404440687.pdfIn PDF document text
- http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1611daf765617f---52281310940.pdfIn PDF document text
- http://rasmesafar.net/basefile/basefiles/fovulovawus.pdfIn PDF document text
- http://mariopresto.pl/userfiles/file/78353540011.pdfIn PDF document text
- http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a978b43369d---gimelakom.pdfIn PDF document text
- https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/feae18c4c02964049af1aa317df3d69a/nuwefosobino.pdfIn PDF document text
- http://www.dawnrotaryclub.tw/UserFiles/files/sadepizifozizug.pdfIn PDF document text
- http://daphongthuyhueminh.com/uploads/image/files/64866615898.pdfIn PDF document text
- http://deryalvincotokurtarma.com/userfiles/file/lejukiliram.pdfIn PDF document text
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/3f94f96e9049e756a4b2c8e1e57f5037/87028759.pdfIn PDF document text
- http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608aa2e0c9df9---44799577301.pdfIn PDF document text
- https://www.saammohaseb.ir/wp-content/plugins/super-forms/uploads/php/files/bfca0eb63229539ac316670de1063088/74859793412.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_off0000c118.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC118 | 15228 bytes |
SHA-256: 3aa0ca1c2c87545b541731d3b2238c245c07bdb79ce1edbab77e3c3ef0e9b25d |
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font_01_sfnt_off0000e7d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7D8 | 11464 bytes |
SHA-256: c2ef1b768b90f3797fdeaad5f2a024a055ff215db177a24cf900ea7d79e21191 |
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font_02_sfnt_off00010267.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10267 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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