MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URLs, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users. The presence of these links and the PDF structure strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9833
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 https://coretry.ru/uplcv?utm_term=how+to+make+your+own+os+for+mobile PDF link annotation
- http://rbtyutj01.com/userfiles/files/18961361024.pdfIn PDF document text
- http://cana.vn/uploads/userfiles/file/fakenir.pdfIn PDF document text
- https://jaurrieta.net/USERFILES_JAURRIETA/files/49460604900.pdfIn PDF document text
- http://2446665a.ru/ckfinder/userfiles/files/59391003320.pdfIn PDF document text
- https://vjlabor.pitscovn.com/uploads/Upload/files/58884417626.pdfIn PDF document text
- https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/qckur6k78hcujjs8ev3vdhgvfv/12470450334.pdfIn PDF document text
- https://warsztatgdynia.pl/app/webroot/media/files/70699978365.pdfIn PDF document text
- https://transmilenio.net/datamont/userfiles/file/jafewoxelorafanemeb.pdfIn PDF document text
- http://laclonghotel.vn/upload/files/fonizirizoduduliwufon.pdfIn PDF document text
- https://altaamir.ipixpms.com/Rapport/public/assets/ckfinder/userfiles/files/xinujugezowamofumuxufef.pdfIn PDF document text
- http://denprokhorov.ru/images/file/21622372919.pdfIn PDF document text
- http://rymwid-training.com/userfiles/file/45337188166.pdfIn PDF document text
- http://wish-pharma.com/upload/files/76608656475.pdfIn PDF document text
- http://greentreeprep.com/cote_dor_import/admin/ckfinder/userfiles/files/226479944.pdfIn PDF document text
- https://maggies-handmade.com/UserFiles/files/naxokazakalasezenofubof.pdfIn PDF document text
- http://inbond-cn.com/userfiles/file/25415608448.pdfIn PDF document text
- https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/161400f48847ec---gobefujexizefi.pdfIn PDF document text
- http://pcccmiennam.com/media/ftp/file/14436192225.pdfIn PDF document text
- https://qualityroofinnandsuites.com/nbloom/fckuploads/file/33471086557.pdfIn PDF document text
- https://eccdc.org/application/webroot/userfiles/file/92738039899.pdfIn PDF document text
- http://cu-mbc.com/ckfinder/userfiles/files/kofiwofimur.pdfIn PDF document text
- http://veiligheidssloten.nl/ckfinder/userfiles/files/42851673931.pdfIn PDF document text
- https://verredistri.fr/xmedia/file/87235638909.pdfIn PDF document text
- http://teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/41284293929.pdfIn PDF document text
- http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/161388af76c18d---7881439808.pdfIn PDF document text
- https://eminencesolutions.in/resources/userfiles/file/75635152051.pdfIn PDF document text
- http://sun-green.eu/ckfinder/userfiles/files/mupowuju.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_off0000dfaa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFAA | 10896 bytes |
SHA-256: c38ff0128c238a625da17fdcb74b10b43d81ed906164d6ac70adff56f0b77a57 |
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font_01_sfnt_off0000f8ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8EA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000110fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110FC | 18412 bytes |
SHA-256: 6a908e351096fadcb4127e1e7f2406fb88cb8d64213f5487703f5cbab89cd023 |
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