MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious. Heuristics indicate it functions as a link farm, directing users to multiple external websites, some hosted on potentially compromised or disposable domains. The presence of numerous PDF links and the use of 'utm_term' parameters suggest an attempt to drive traffic for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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://mwflower.com/upimagesfile///xagodamafutiral.pdf In PDF document text
- https://satellietgroep.nl/userfiles/files/70838518738.pdfIn PDF document text
- http://fqcycpa.com/jingkelun/userfiles/files/20210911133812.pdfIn PDF document text
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/16133757489cde---2428812146.pdfIn PDF document text
- https://krassimirtaskov.com/userfiles/files/petivibepuluzarox.pdfIn PDF document text
- http://hfnhsw.com/upload/files/pusokuwikeleripo.pdfIn PDF document text
- https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/79609101e99b041c8fd4e122b59cfd4d/76828765555.pdfIn PDF document text
- https://optimuselearningschool.com/learning/site/images/uploadfiles/7113799928.pdfIn PDF document text
- http://otoozevran.com/resimler/files/51048626472.pdfIn PDF document text
- http://kroonzuivel.nl/ckfinder/userfiles/files/leziromojunadirugoxow.pdfIn PDF document text
- http://a-b-i-s.net/layout/bilder/file/vixivovuse.pdfIn PDF document text
- http://xn--989ap7r0xbd5x.com/upload/fckeditor/file/kumuxeligam.pdfIn PDF document text
- https://www.passion-rnd.com/upfile/files/2021/09/08/suveziviweboz.pdfIn PDF document text
- http://geo-equipe.it/userfiles/files/50249582332.pdfIn PDF document text
- https://franchisebusinessadvisors.franchisebrokerwebsites.com/broker-site/files/files/46104685719.pdfIn PDF document text
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614359f61dff7---31167181453.pdfIn PDF document text
- https://hexema.com/FCKeditor/file/nasewekokigogupamapovakub.pdfIn PDF document text
- http://kme-kme.cz/files/file/39645139807.pdfIn PDF document text
- https://shastriratanchatterjee.com/ckfinder/userfiles/files/ranipefugalabi.pdfIn PDF document text
- http://chinahk-ip.com/chinahk_ip/html/files/editor/file/27876269598.pdfIn PDF document text
- http://upoart.com/ckfinder/userfiles/files/43815418342.pdfIn PDF document text
- https://pezenasenchantee.fr/userfiles/file/kawojiramifam.pdfIn PDF document text
- http://oroblupiscine.it/userfiles/files/51813083567.pdfIn PDF document text
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16142907366d96---79229829247.pdfIn PDF document text
- http://foodzipo.com/uploads/userfiles/files/mazususuku.pdfIn PDF document text
- https://digiconelectronics.com/media/jozijamabatefowakopipu.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=how+to+lock+android+phonePDF 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_off0000d779.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD779 | 17228 bytes |
SHA-256: 8843a74b847e716491d155f2bdb4fef180921ca7430150aef0518f3683cca934 |
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font_01_sfnt_off00010416.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10416 | 10612 bytes |
SHA-256: c58294eb9256b947f9f1028ff1e5d8d3d4323fe8c0b04ba28d128ac5878d8d3e |
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font_02_sfnt_off00011c45.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C45 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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