MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file is identified as malicious by ClamAV and an ML classifier, and it contains numerous embedded URLs. Several heuristics indicate it functions as a link farm, with some links pointing to compromised WordPress uploads or disposable hosting. The presence of 'utm_term' parameters suggests tracking or phishing-related activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 6
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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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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://archism.ru/uplcv?utm_term=signalr+java+client PDF link annotation
- http://phuwangnam.com/user_file/file/pelokugubikokewefotal.pdfIn PDF document text
- https://lideregitimpaketleri.com/calisma2/files/uploads/mubunasezunataluwukedi.pdfIn PDF document text
- http://netinflux.net/userfiles/file/ravinerejakasunezupijod.pdfIn PDF document text
- http://xn----9sbkvfu2aex3d.xn--p1ai/ckfinder/userfiles/files/vovuwo.pdfIn PDF document text
- http://toptoptraining.ru/img/upload/file/79171804346.pdfIn PDF document text
- http://skupka23.ru/upload/m/jevuga.pdfIn PDF document text
- http://77owship.netsociality.com/upload/files/66659575010.pdfIn PDF document text
- https://bacninhonline.com/webroot/img/files/8260059175.pdfIn PDF document text
- http://yanarfabrics.com/firma/files/92669902519.pdfIn PDF document text
- http://arebiatours.com/uploads/files/jebiwunuxudaninefagaf.pdfIn PDF document text
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16141d2c54b98d---menotuzajonirelewaru.pdfIn PDF document text
- https://blueparadise.pl/userfiles/file/favisixexuli.pdfIn PDF document text
- http://crmrealty360degree.in/userfiles/file/85147259712.pdfIn PDF document text
- http://vakantie-noordlimburg.nl/ckfinder/userfiles/files/xufeb.pdfIn PDF document text
- http://triple-a.co.th/ckfinder/userfiles/files/tepabigaxatefab.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613255311a2a4---8810853493.pdfIn PDF document text
- http://anquocrealty.com/uploads/image/files/vitegerarisipad.pdfIn PDF document text
- http://sibaco.ru/ckfinder/userfiles/files/notaduwutu.pdfIn PDF document text
- http://zeshengtecphar.com/UploadFiles/FCKeditor/20210906070724.pdfIn PDF document text
- http://neapol-m.ru/usr/file/66931030130.pdfIn PDF document text
- http://www.centralperdana.com/file/15836876164.pdfIn PDF document text
- http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/64664f7f2cf6d28af90ba8da8e71d6c3/74648068056.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_off0000d47b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD47B | 10388 bytes |
SHA-256: a81d8a07fe48e50cf9d83b9af8937c6ff1a603b5c05bbc89da882bb8422c095e |
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font_01_sfnt_off0000ec1a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC1A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001042c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1042C | 18480 bytes |
SHA-256: 804fb1bfd898f223c84f713b4f67f65ced86f5c316dd35ddc4dccdf290300669 |
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