MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites. Heuristics indicate this is a link farm designed to redirect users, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 https://laborke.ru/uplcv?utm_term=leishmaniose+visceral+pdf+ministerio+da+saude PDF link annotation
- http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160882409ee3e5---fotiv.pdfIn PDF document text
- http://booklandbooks.com/userfiles/file/wepazodufiribogoxu.pdfIn PDF document text
- http://allamericannursing.com/userfiles/file/99134539665.pdfIn PDF document text
- https://srp-galabau-rostock.de/wp-content/plugins/super-forms/uploads/php/files/oudi1oog59sgffglto0e5jc6sm/rifuxabedanadix.pdfIn PDF document text
- http://yokohama-model.com/userfiles/files/46043653452.pdfIn PDF document text
- http://liily.jp/upload/file/20210805153100.pdfIn PDF document text
- https://sharadsangam.org/UserFilesTwo/file/miduwiviveg.pdfIn PDF document text
- http://faradtvandor.hu/picture/userfiles/file/39369493801.pdfIn PDF document text
- https://chamsocmuihong.com/wp-content/plugins/super-forms/uploads/php/files/7gkvr9mgvjddjp9mug5nh82i67/74919332652.pdfIn PDF document text
- http://www.badischer-kunstverein.de/ckfinder/userfiles/files/maluxadinexaxeluralilisof.pdfIn PDF document text
- http://tourbusan.net/FileData/ckfinder/files/20210814_029588167218E612.pdfIn PDF document text
- http://bygreenpure.com/userfiles/file/37619702690.pdfIn PDF document text
- https://petrovsky14.ru/docs/files/17972249062.pdfIn PDF document text
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/7f501b049923a5348b6eeece8af6d4ca/mewovegetepazidudesurulup.pdfIn PDF document text
- http://yhbinternational.com/userfiles/file/41420798495.pdfIn PDF document text
- http://krevue.cz/UserFiles/File/46879858791.pdfIn PDF document text
- http://gibisch.com/files/files/17675703491.pdfIn PDF document text
- https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/f483a177881f704937ff4be29d1e64eb/tedizodisopibegiwuje.pdfIn PDF document text
- http://jjw-led.com/userfiles/file/2000715684.pdfIn PDF document text
- http://rsst77.ru/upload/files/87753996074.pdfIn PDF document text
- http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f5b5fb2e63---74827007440.pdfIn PDF document text
- https://hzautomatisering.nl/userfiles/file/20778680361.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_off0000f5de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5DE | 18988 bytes |
SHA-256: 4667a7f0e23eb6aeb3a822dc63441a29756fd5ca92b2c3e9d8603acf07ac6e01 |
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font_01_sfnt_off000126ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126EC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013f03.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13F03 | 11008 bytes |
SHA-256: 3f54ff87cdcc40a0bef1c86da0a2d443c49e11a28c362a9afe70a3bbe120f76f |
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