MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF contains a link farm pointing to numerous disposable hosting sites, a common tactic for phishing or distributing malware. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and URL analysis point to a malicious redirection scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9901
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 http://viviapalermo.com/userfiles/files/nasixoneguwazuma.pdf In PDF document text
- http://vdtonline.vn/static/uploads/editor/files/72791189976.pdfIn PDF document text
- http://work4shop.cz/userfiles/file/45936619976.pdfIn PDF document text
- http://ng-sons.com/userfiles/file/96011189670.pdfIn PDF document text
- https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/2e445dd24f4e3591a477c6fe13f7a89f/dedizipokigutunonugizo.pdfIn PDF document text
- https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/vt433sarpcdupa36gr7vvtnkj2/vevuvutadas.pdfIn PDF document text
- http://to-tuong.com/media/ckfinder/files/61847235023.pdfIn PDF document text
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/ncs4vblj06kn62li40ute9ltlj/sopapasodapafo.pdfIn PDF document text
- https://xosobacninh.vn/webroot/img/files/11742366375.pdfIn PDF document text
- http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161386052aded3---daxonoxileruzajuvepom.pdfIn PDF document text
- http://parentini.it/userfiles/files/kulawabif.pdfIn PDF document text
- https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/umtkr3tfashq1lbbg5c50e7nn1/kivelawovir.pdfIn PDF document text
- http://jts-electrical.co.uk/ckfinder/userfiles/files/62348806736.pdfIn PDF document text
- http://espressobuilders.com/app/webroot/files/userfiles/files/rovozifitu.pdfIn PDF document text
- http://www.culturehousesun.org/photos/file/71323856624.pdfIn PDF document text
- http://cabinet-blin.fr/ressource/site-image/files/mumulekukakipuvubij.pdfIn PDF document text
- https://ltes2.tw-goods.com/UserFiles/files/mobelakesipum.pdfIn PDF document text
- http://donghozibistore.com/luutru/files/42386403118.pdfIn PDF document text
- http://refpecsbelvaros.hu/kepek/files/50142398560.pdfIn PDF document text
- http://www.moyekolodin.com/files/zipatowevabefanitavidiz.pdfIn PDF document text
- http://mynotary.ca/sites/all/sites/mynotary.ca/files/9929743903.pdfIn PDF document text
- http://imosa.asia/uploads/files/202109121018554294.pdfIn PDF document text
- https://bustotoronto.com/userfiles/file/76115087170.pdfIn PDF document text
- http://moveworldtogether.com/datas/files/67323387480.pdfIn PDF document text
- https://aymexco.ro/ckfinder/userfiles/files/rilokofurum.pdfIn PDF document text
- http://www.octopus-quatuorvocal.com/ckfinder/userfiles/files/90098002264.pdfIn PDF document text
- http://hizirferforje.com/admin/fckeditor/editor/images/file/38930091153.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=is+81+a+prime+or+composite+numberPDF 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_off0000c398.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC398 | 10940 bytes |
SHA-256: 3afd68cf091c3b1d41d1f4af56b33d935396b8e2d19a4fcb42026beb81f36ba0 |
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font_01_sfnt_off0000dcce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCCE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f4e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4E0 | 17852 bytes |
SHA-256: 86efb743727c763e11615ae48603a51b729b34e0eaf41d79fb5e83a1653c26d8 |
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