MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing or trojan variant. Heuristics indicate it functions as a link farm, directing users to multiple external URLs, some hosted on compromised WordPress sites. The presence of numerous links, including those with 'utm_term=download' parameters, suggests an attempt to trick users into visiting potentially harmful sites for phishing or malware downloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://anhhieu.vn/hinhanh/file/3821468505.pdf In PDF document text
- https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/ek5f7vtgm25unk46rbsajmvivu/biwafasuneloxepabagikem.pdfIn PDF document text
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/161379f5ecc86f---ludazuzobinoxa.pdfIn PDF document text
- http://alltechsro.cz/files/weguge.pdfIn PDF document text
- http://loveperfectionschool.com/upload/file/gizinepebatesesuguduros.pdfIn PDF document text
- https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613deb7023720---36236292240.pdfIn PDF document text
- http://sportschoolindex.nl/images/uploads/kumitimavemotilomil.pdfIn PDF document text
- http://dietmoiquangle.com/webroot/img/files/76758396926.pdfIn PDF document text
- https://ferropula.hr/files/mober.pdfIn PDF document text
- http://explosivedevices.ru/media/file/newetepejuluwawuboluku.pdfIn PDF document text
- http://think6.net/ckfinder/userfiles/files/20210918043818.pdfIn PDF document text
- https://gilboamedia.com/userfiles/file/laferufezinasujumexo.pdfIn PDF document text
- http://mondoacquapiscine.com/userfiles/files/94471708061.pdfIn PDF document text
- http://tcihk.com/userfiles/gexironew.pdfIn PDF document text
- http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/37fe6af8abeb6d99e0bcf6775c12742a/86864818835.pdfIn PDF document text
- https://skinrepublic.vn/webroot/img/files/dinos.pdfIn PDF document text
- https://toliveinchristjesus.ceosale.catholic.edu.au/application/third_party/ckfinder/userfiles/files/76492339117.pdfIn PDF document text
- https://bushregenerators.biz/userfiles/files/47105130489.pdfIn PDF document text
- http://nitecoreromania.ro/files/file/66782855491.pdfIn PDF document text
- https://rainbowprinter.com/app/webroot/files/file/66247340970.pdfIn PDF document text
- http://tsg-vaganovskoe.ru/ckfinder/userfiles/files/maxugunuwazazijo.pdfIn PDF document text
- https://webtechnocrats.com/upload/file/wukuba.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=download+play+store+free+for+laptopPDF 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_off0000b97d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB97D | 15980 bytes |
SHA-256: 789fa00fd4e7b770587591f1f9db2bf53e9aa222221f7ba95f6b14a55715125a |
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font_01_sfnt_off0000e293.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE293 | 10600 bytes |
SHA-256: 1d1ac4edcc123ec0484b100c67b110fe607a3f9376ead1093f744ec534c6c6e8 |
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font_02_sfnt_off0000fb03.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB03 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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