MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, indicating a link farm designed to redirect users to potentially malicious content. The presence of embedded URLs and the nature of the heuristics strongly suggest a phishing or malware distribution campaign.
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://queure.ru/uplcv?utm_term=android+phone+missing+text+messages PDF link annotation
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613da3d3dc0a6---8658133786.pdfIn PDF document text
- https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/6h3i9lnvqtc2684hsbcsiirltu/94059882006.pdfIn PDF document text
- http://www.ocptecnology.com/admin/uploaded/fck/file/suxugurefibomebibevutofi.pdfIn PDF document text
- http://nanopena.cz/upload/file/90023198464.pdfIn PDF document text
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/b1lbme32p5upqtbuvrsk27eqa6/28540393166.pdfIn PDF document text
- https://manualismedicina.hu/fileok/file/64283019104.pdfIn PDF document text
- http://chiangmai-esc.net/user_img/files/8247593016.pdfIn PDF document text
- https://mmrh.myagenda.cz/pictures/editor/files/45017784537.pdfIn PDF document text
- https://penzehir.com/dorceiys/ckfinder/userfiles/files/29573122993.pdfIn PDF document text
- https://interstudy.net/userfiles/file/satajikuvufazejero.pdfIn PDF document text
- http://www.eau-msu.ru/ckfinder/userfiles/files/6912903204.pdfIn PDF document text
- http://dyglas.com/userData/board/file/62641455812.pdfIn PDF document text
- http://artikos.pl/userfiles/file/fakedesimu.pdfIn PDF document text
- http://nena-artspace.com/ckfinder/userfiles/files/zadamavomigebavexutejupi.pdfIn PDF document text
- http://jgbt.us/pds/userfiles/files/gazejujewoxepopipix.pdfIn PDF document text
- https://accu-split.com/userfiles/files/54431035711.pdfIn PDF document text
- https://karinbentum.nl/uploads/file/kewovipegawotofupo.pdfIn PDF document text
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16134e23aae47c---902673037.pdfIn PDF document text
- http://www.ujepites.hu/userfiles/files/56103503326.pdfIn PDF document text
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141ae57b7a62---tekidukakoloxikidafonozun.pdfIn PDF document text
- https://aawyx.com/sites/default/imageuser/file/vojemipokosafu.pdfIn PDF document text
- https://thehouseconcert.com/ckfinder/userfiles/files/relazopiwakujanite.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_off0000d823.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD823 | 17944 bytes |
SHA-256: 937d49891bd279aaf1187ffff9c215a26cafd15cc19ef6a13463e23f4a8e3641 |
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font_01_sfnt_off0001062d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1062D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011e44.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E44 | 10876 bytes |
SHA-256: 1f2f76d02b967f734a146214936f0a245793120e41866e2163942461734cdc8c |
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