MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of embedded URLs pointing to various domains, many of which appear to be compromised or disposable hosting. Heuristics indicate this is a link farm designed to lead users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://philabc.ru/uplcv?utm_term=get+rid+of+ads+on+phone PDF link annotation
- http://salamino.pl/userfiles/file/73865536296.pdfIn PDF document text
- http://ffarchitettura.it/userfiles/files/9311668351.pdfIn PDF document text
- http://elmbbq.com/uploads/files/zanojuwiv.pdfIn PDF document text
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147790f0bd80---13239820923.pdfIn PDF document text
- http://rustproofingottawa.com/userfiles/file/10079469907.pdfIn PDF document text
- https://adrfarysz.pl/userfiles/file/junigugakatusave.pdfIn PDF document text
- https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137b4c869a91---49140600131.pdfIn PDF document text
- https://bgg.pirkitpadangas.lt/ckfinder/userfiles/files/rafizubazugeg.pdfIn PDF document text
- http://cokhilegia.com/upload/files/1490946369.pdfIn PDF document text
- http://crystaltrade.hu/data/file/8160596851.pdfIn PDF document text
- https://mallorcaboom.com/res/wysiwyg/file/baledajezafezaf.pdfIn PDF document text
- http://decaldankinh.net/upload/files/34137419514.pdfIn PDF document text
- https://zhavezbozi.cz/data/file/28521327619.pdfIn PDF document text
- https://lideregitimpaketleri.com/calisma2/files/uploads/31299659786.pdfIn PDF document text
- http://cuacuongiare.vn/upload/files/16228915189.pdfIn PDF document text
- http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/64f7uchjcf01ltbsb8gcms4i48/78316328379.pdfIn PDF document text
- https://kingwaterpure.com/ckfinder/userfiles/files/pesixosatupajulifivib.pdfIn PDF document text
- https://sunarchegypt.com/userfiles/file/jerosog.pdfIn PDF document text
- http://ratchee.com/ckfinder/userfiles/files/95014076649.pdfIn PDF document text
- https://everestart.com/images/stories/file/situxiv.pdfIn PDF document text
- http://ttworld.hu/uploads/content_files/files/71636535952.pdfIn PDF document text
- http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/f02c1d7b14fd3d7862889b975d3ac323/dajasugodinodup.pdfIn PDF document text
- http://cleangroupbd.com/ck/upload/files/sonobizinape.pdfIn PDF document text
- http://www.waetsukai.jp/system/ckfinder/userfiles/files/livobukaseleluna.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_off0000d07e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD07E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e890.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE890 | 17656 bytes |
SHA-256: 7eb63c88f6b3865eaa90c2a2e9192d47cd07cd5cf54456d7ec031e0e936bb99b |
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font_02_sfnt_off0001160f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1160F | 10588 bytes |
SHA-256: bd65636f44ec003c97138013739c56d251af96bf638082ffb395894b835be0ed |
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