MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV specifically identifying it as a phishing trojan. The document contains a link farm pointing to numerous unknown URLs, many hosted on compromised CMS uploads or disposable domains, indicating a likely attempt to redirect users to malicious content. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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 http://anhuifan.com/upload_fck/file/2021-5-1/20210501142543529031.pdf In PDF document text
- http://belst.by/upload/file/94954003609.pdfIn PDF document text
- https://telewebmarketing.com/FCKeditor/file/60909656573.pdfIn PDF document text
- https://prosegik.com/wp-content/plugins/super-forms/uploads/php/files/9bbc11a3d7ae9969e3064ab2f963849a/weborujawafenalib.pdfIn PDF document text
- https://etre-cheval.fr/Applications/MAMP/htdocs/etre%20cheval/news_pix/file/95179831421.pdfIn PDF document text
- https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a940520c7ef---nopanuperu.pdfIn PDF document text
- http://hocikto.info/userfiles/file/wixelulam.pdfIn PDF document text
- https://sunarchegypt.com/userfiles/file/47434807184.pdfIn PDF document text
- http://osc-pribor.ru/products_pictures/file/porobaxefeno.pdfIn PDF document text
- https://www.sesc.com.ua/wp-content/plugins/super-forms/uploads/php/files/66jj8eocnvpmfla99r96oror56/lolalofo.pdfIn PDF document text
- http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/1609b98bd4cdf1---29847049868.pdfIn PDF document text
- https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160777bfcd59bc---xojarubezozemoxubulotafop.pdfIn PDF document text
- https://musikkursus.dk/userfiles/file/sisogumukuj.pdfIn PDF document text
- http://pferdefreunde-brueckenhof.de/sites/default/files/userfiles/file/57213132183.pdfIn PDF document text
- http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608067d369045---79577861687.pdfIn PDF document text
- http://hawks79.com/clients/85064/File/rebakezit.pdfIn PDF document text
- http://fipjp.com/userfiles/file/gejolidilivenikimuw.pdfIn PDF document text
- http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16098998beef45---4531954711.pdfIn PDF document text
- http://wittlich-luexem.de/userfiles/file/baxefakuti.pdfIn PDF document text
- http://lyshiying.com/d/files/32919708033.pdfIn PDF document text
- https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/c9c560260cfb0b7ca7462d9f8d4f7f79/61796344254.pdfIn PDF document text
- https://celebicatering.com/upload/ckfinder/files/26885768014.pdfIn PDF document text
- http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cc1d60c8e6---30132899589.pdfIn PDF document text
- http://acecaalcoy.com/userfiles/file/megikibedadoforosebepiv.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=communion+of+reformed+evangelical+churchesPDF 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_off0000f332.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF332 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010b49.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B49 | 11020 bytes |
SHA-256: 069acacd8cd77860b6f63356b954132534d2891885337a7069394221a3d9ae73 |
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font_02_sfnt_off00012479.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12479 | 19420 bytes |
SHA-256: 6a85dd77b63a9c8596081f456735a5fdf1585403a111bbe76c86b881cb3d2195 |
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