MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, with several heuristics indicating it functions as a link farm. Notably, some links point to compromised CMS upload storage, suggesting a tactic to host malicious content or redirect users to phishing sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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 http://rintoyo.com/userfiles/file/sigarupujomobipuzenexifu.pdf In PDF document text
- http://flightshop.jp/images/blog/file/fivin.pdfIn PDF document text
- http://thaiboxes.com/piceditor/file/zejokififebakusaxotag.pdfIn PDF document text
- http://exosushi.com/uploads/files/77760679025.pdfIn PDF document text
- http://corising.info/sa_upload/userfiles/file/20210911135325.pdfIn PDF document text
- http://www.arborvitae.cz/ckfinder/userfiles/files/2977278173.pdfIn PDF document text
- https://abofahed.com/userfiles/file/99619690386.pdfIn PDF document text
- https://webshopplus.nl/app/webroot/files/userfiles/files/wojapimumetori.pdfIn PDF document text
- http://nscenter.cn/upload/files/26362914048.pdfIn PDF document text
- http://spzpoz-zdunskawola.pl/upload/file/63402220559.pdfIn PDF document text
- http://zjleiou.com/images/upload/File/jewobod.pdfIn PDF document text
- https://studyhalltracker.com/files/file/46335294803.pdfIn PDF document text
- http://invismortgagebroker.com/images/file/1136805081.pdfIn PDF document text
- https://gastrotest.co/ckfinder/userfiles/files/33393587964.pdfIn PDF document text
- https://rjiminfra.com/wp-content/plugins/super-forms/uploads/php/files/4ca3dddefe97dc47e99502db8396c7f1/pekomagom.pdfIn PDF document text
- http://webcertain.net/contentupload/fckeditorUploads/organization_/file/78580296901.pdfIn PDF document text
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/161306f562a7af---wafidotasotafoxiwokitovur.pdfIn PDF document text
- https://hygradeinsulators.com/images/uploads/file/samasusas.pdfIn PDF document text
- http://clubselectionvoyages.com/images/file/mujorerevufalulemawoji.pdfIn PDF document text
- https://priscar.com/documents/files/tamovuzuruwefokukafa.pdfIn PDF document text
- http://ecilingirler.com/resimler/files/dizafora.pdfIn PDF document text
- http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16134098a534d6---30482112675.pdfIn PDF document text
- http://falconfam.com/ckfinder/userfiles/files/dobupulalenuxekojawe.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=crazy+racing+car+3d+downloadPDF 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_off0000bc87.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC87 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d49e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD49E | 10612 bytes |
SHA-256: 86dfc3ed14d67f0c859446f96b2569826f6ce8c10298d230eb1c7c9256587b3b |
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font_02_sfnt_off0000ece0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECE0 | 16156 bytes |
SHA-256: 6f08f8a0f155cc3f23cd6b4da1e57e76a43a1987882053f7d6983fbd21012d3a |
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