MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised CMS uploads and disposable hosting, suggesting a link farm designed to redirect users. The PDF structure and embedded links are indicative of a phishing or malware distribution campaign, likely leveraging spearphishing attachments as the initial access vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://balogmihaly.hu/UserFiles/file/57349342064.pdf In PDF document text
- https://www.freshstartdigitalmarketing.com/wp-content/plugins/super-forms/uploads/php/files/bce095702f0edf4fb9b714d568b888ac/ximozakuzedetit.pdfIn PDF document text
- http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609ea56d906f1---37179314206.pdfIn PDF document text
- http://bloomx.com/sites/all/sites/bloomx.com/files/liwabujikofelore.pdfIn PDF document text
- http://xn--54-dlcdkamdj4btild5b.xn--p1ai/ckfinder/userfiles/files/notiravifokesotatisapas.pdfIn PDF document text
- https://envomask.com/wp-content/plugins/super-forms/uploads/php/files/cc0ab6cf93d64a89dc592f3019d3a88a/setufaxiruwoweladosas.pdfIn PDF document text
- https://local-atlas.ru/userfiles/files/40082769574.pdfIn PDF document text
- http://ehomerealestate.org/images/file/60650065133.pdfIn PDF document text
- https://globportal.com/upload/userfiles/files/70673262521.pdfIn PDF document text
- https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/41530319412.pdfIn PDF document text
- http://abnicum.com/files/file/14163854191.pdfIn PDF document text
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a90c69f09f2---87979211759.pdfIn PDF document text
- http://www.liveartsaskatchewan.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b605db068f4---bitawirevene.pdfIn PDF document text
- http://merwepizza.com/upload/file/rusisenow.pdfIn PDF document text
- http://ahrestygz.com/userfiles/files/20210811_044612.pdfIn PDF document text
- http://stavebnevyrobky.sk/www/upload/files/kekuzoritiwawowokumovuxi.pdfIn PDF document text
- http://wxbeimei.cn/upload/ckimg/files/202108050744369301.pdfIn PDF document text
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1609c1fdc6cf9f---wozegeragisuvepo.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609c7196dae04---niperonubulutiwiv.pdfIn PDF document text
- http://liqaa-lb.com/files/userfiles/files/74645403795.pdfIn PDF document text
- http://affordableadobe.com/ckfinder/userfiles/files/39159928922.pdfIn PDF document text
- https://franchise-vietnam.com/app/webroot/img/files/62123752108.pdfIn PDF document text
- https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/744d3665e0b59bd8d86a9cd6f8c161b1/videfuripoxujeweja.pdfIn PDF document text
- http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16075a702d6879---kiwomanike.pdfIn PDF document text
- https://solidpractise.com/files/userfiles/file/63840964011.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=how+to+tell+strong+and+weak+acidsPDF 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_off0000e6a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6A4 | 17252 bytes |
SHA-256: afc90698bd1e6af72d2506f0ae8a26b5ce1a347aab3b11759366761d3b1cf424 |
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font_01_sfnt_off000112b6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112B6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012acd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12ACD | 10712 bytes |
SHA-256: 9031bc8feff94f3941cd2dbb8506bb6190d9e53c6aa4ad1fed2e4b7e40681201 |
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