MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 https://catamma.ru/uplcv?utm_term=which+is+better+haynes+or+chilton PDF link annotation
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160f6013f6238d---wugibalanoxivoronodunu.pdfIn PDF document text
- https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/cf60945ba0e481f36de616dbbd2831b3/62956949384.pdfIn PDF document text
- http://www.feniuniversity.edu.bd/app/webroot/ckfinder/userfiles/files/fajasodezijilubaxukexeb.pdfIn PDF document text
- https://magatek.com/documents/file/jirupowazufuwum.pdfIn PDF document text
- http://charontrade.hu/data/file/wadirakapikovivisada.pdfIn PDF document text
- http://quincy.pl/ckfinder/userfiles/files/78014247461.pdfIn PDF document text
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d4baf41a79---95825397846.pdfIn PDF document text
- https://nguyenvanhuongloc.vn/app/webroot/files/images/pages/files/zilejoxederiroboto.pdfIn PDF document text
- https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/0ef0ffa62207eb1ed33dda1db1ba1999/51374083730.pdfIn PDF document text
- http://tubemakingmachine.com/uploadfile/files/burupoparazewez.pdfIn PDF document text
- https://marbellamohali.com/wp-content/plugins/super-forms/uploads/php/files/b1e44bf827b81896950635333a10ddc8/49314575120.pdfIn PDF document text
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5baf27cf20---maziwotavuviniwafamid.pdfIn PDF document text
- http://bilmatbasim.com/userfiles/file/ritokonomube.pdfIn PDF document text
- https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609fb6eb1af3c---vudetadusififofepoga.pdfIn PDF document text
- https://rybczewice.pl/userfiles/file/zikonakotoxav.pdfIn PDF document text
- http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a59994e73d2---vakepefadadexa.pdfIn PDF document text
- https://digireg.com/upload/tafizufasajomagajosaxagu.pdfIn PDF document text
- https://trimix.bg/UserFiles/File/xugijevap.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094378c9e012.pdfIn PDF document text
- http://mp-hd.de/data/aktualnosci_imgs/file/21843938164.pdfIn PDF document text
- http://www.aadhar-interior.com/userfiles/file/jefuxuzoxotozenurori.pdfIn PDF document text
- http://www.icareonline.net.au/ckfinder/icare/files/muvizozagulesuvezokom.pdfIn PDF document text
- https://dichvuketoanvn.org/uploads/files/togajexuteresan.pdfIn PDF document text
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/160801101368f0---22667106609.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_off0000e126.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE126 | 10576 bytes |
SHA-256: 16026f2ceee6e5e87c210647210a2707158e47e6b0e52a02dca8a7351cd889c5 |
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font_01_sfnt_off0000f94c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF94C | 16660 bytes |
SHA-256: 25825646f8098e7b69b8bda0991e1f83f801da7d67a680e27d166954040e448e |
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font_02_sfnt_off00012456.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12456 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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