MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to compromised CMS uploads or are part of a link farm on disposable hosting, suggesting a phishing or malware distribution scheme. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://huntic.ru/uplcv?utm_term=best+apps+for+google+pixel+4 PDF link annotation
- http://abimobiliare.pl/pliki/File/gusitubenabaxizexegoxomid.pdfIn PDF document text
- https://riosemarescentrodemergulho.com/ckfinder/files/rujenuzuxuvidax.pdfIn PDF document text
- http://urduhadith.org/survey/userfiles/files/58692121674.pdfIn PDF document text
- http://vtaky.sk/media/file/8981266302.pdfIn PDF document text
- http://avtokapriz42.ru/userfiles/file/51262653423.pdfIn PDF document text
- https://soi.icami.mx/ckfinder/userfiles/files/83269060940.pdfIn PDF document text
- https://delta-relay.be/userfiles/file/besisul.pdfIn PDF document text
- http://boxethai38.com/upload/file/wizefumuweferolafob.pdfIn PDF document text
- http://www.rajpuc.pl/pics/file/46102134263.pdfIn PDF document text
- http://lezeckastenakosice.sk/upload/files/25899283288.pdfIn PDF document text
- http://wsm.hk/images/uploadfiles/file/76221204014.pdfIn PDF document text
- http://portalpr-b2b.es/img/user//file/_0946340001631697543.pdfIn PDF document text
- https://chinese-wall.tw/upload/files/ronuviwevamarumig.pdfIn PDF document text
- http://phanphoiongnhuahoasen.vn/upload/files/bejosinozejejalu.pdfIn PDF document text
- http://chaitraglaze.com/uploads/56738922500.pdfIn PDF document text
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/16134c17dd803a---68926970054.pdfIn PDF document text
- http://akcompany.vn/uploads/userfiles/file/80235497964.pdfIn PDF document text
- http://secretinvitation.net/images/files/10116095137.pdfIn PDF document text
- https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/70ce0n0lgaooe7g99ia0c3hvfc/29888110139.pdfIn PDF document text
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/3e9peg7ov9t760lc9jab077i93/41703794996.pdfIn PDF document text
- http://vakantie-noordlimburg.nl/ckfinder/userfiles/files/wolemoge.pdfIn PDF document text
- http://www.farnostbobrova.cz/ckfinder/files/57144068927.pdfIn PDF document text
- https://ottopianos.nl/files/33047596517.pdfIn PDF document text
- http://kargiskola.ge/myadmin/ckeditor/ckfinder/userfiles/files/kibisef.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_off0000d3e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3E5 | 10664 bytes |
SHA-256: 2588d0d22b765709153327cf132a7a0440e38945a192b5abd1752795d3181f7a |
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font_01_sfnt_off0000ec8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC8A | 17924 bytes |
SHA-256: b22c946dd6043b5439e4f45f5b4d1fe5f373e4a7513b96a3a7a9a23cfbc0cd56 |
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font_02_sfnt_off00011b91.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B91 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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