MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics as a link farm, with many URLs pointing to potentially compromised or disposable domains. The ML classifier and ClamAV also identified it as malicious, specifically as a phishing trojan. The presence of numerous links, including one to a compromised WordPress upload directory, strongly suggests an attempt to lure users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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://st03.it/userfiles/files/zawigita.pdf In PDF document text
- https://pchome.uzai.ca/upload/files/36943083413.pdfIn PDF document text
- http://tuzy.pl/Upload/file/sizexabutitizugewiz.pdfIn PDF document text
- http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16135851357b12---91801638922.pdfIn PDF document text
- http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/l18198g5h8359jhjhuhceltgn4/50084968793.pdfIn PDF document text
- http://j-club.eu/userfiles/file/87530760956.pdfIn PDF document text
- https://floridainvestment.cz/files/file/niroz.pdfIn PDF document text
- http://szyqjsj.com/UploadFile/file/20210909205043161.pdfIn PDF document text
- https://goldenlinejsc.com/userfiles/file/83184330014.pdfIn PDF document text
- http://businessvaluationapp.com/fck_files/file/62697341104.pdfIn PDF document text
- https://xn----7sbbg1ddpkdc.xn--j1amh/uploads/files/feparudemogo.pdfIn PDF document text
- https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/67de73a74f87663123d7754a5df58015/59186424484.pdfIn PDF document text
- https://techson-cctv.com/upload/file/13243388954.pdfIn PDF document text
- http://gustosandvic.com/ckfinder/userfiles/files/zofudozidunax.pdfIn PDF document text
- http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1612f0cdc8c962---66148116441.pdfIn PDF document text
- https://alpinashop.rudy-ra.com/files/gijate.pdfIn PDF document text
- http://ark-mr.com/data/home/qxu2063190031/htdocs/uploadfile/files/webijotulebejas.pdfIn PDF document text
- https://thic.muki001.com/plugin/ce1/ckfinder/userfiles/files/62969758868.pdfIn PDF document text
- http://kingbikeonline.com/images/upload/File/64515679675.pdfIn PDF document text
- http://fd-health.com/upload/ckeditor/files/rakavedeleziv.pdfIn PDF document text
- https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/161334b3f8d110---25922367616.pdfIn PDF document text
- http://coral-travel66.ru/admin/ckfinder/userfiles/files/rovavokutisajinamazu.pdfIn PDF document text
- https://atrax.eu/userfiles/file/lisoxe.pdfIn PDF document text
- http://bindashnews.com/userfiles/file/48332762278.pdfIn PDF document text
- http://www.allatpatikapecs.hu/images/file/26962589811.pdfIn PDF document text
- https://icbacademy.com/upload/files/68065500165.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=install+mobdro+2021PDF 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_off0000bc1f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC1F | 10572 bytes |
SHA-256: 5a09419c1a727168aba197e0fd37c5aedea0dc092b7142f9c96db6bbb0f433e6 |
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font_01_sfnt_off0000d445.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD445 | 16692 bytes |
SHA-256: 33440197e88154a597aaeae1d341168deb31b7e5882ea832f897fbdc38e7cece |
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font_02_sfnt_off0000feda.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEDA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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