MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics indicate the PDF acts as a link farm, directing users to compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs and the nature of the heuristics strongly suggest an attempt to exploit users by directing them to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/16098b0966f980---47700077323.pdf In PDF document text
- http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/0afdce243198480f91ed4c6132e9224e/76188558619.pdfIn PDF document text
- http://banlinhkienlaptop.com/userfiles/file/bewuzetowet.pdfIn PDF document text
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16086ddccc7551---vefunabamotuzo.pdfIn PDF document text
- http://qca.ch/userfiles/file/nagutogube.pdfIn PDF document text
- http://com123.vn/uploads/file/7768365815.pdfIn PDF document text
- http://krevue.cz/UserFiles/File/xijawolel.pdfIn PDF document text
- http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/160aae13d103a6---lonomogutovufijujewoke.pdfIn PDF document text
- http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c1f5c3b364---kigofewufonuxez.pdfIn PDF document text
- https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/04kd951icp19225fudrnlmh2on/fovonutuka.pdfIn PDF document text
- https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/b6e2a27ab8c87a0899841c7e3a8767b1/25396239776.pdfIn PDF document text
- https://www.straightmyteeth.eu/wp-content/plugins/super-forms/uploads/php/files/abfb9630dbbe732c247d2c374a27f7ad/saken.pdfIn PDF document text
- http://pechati-piter.ru/userfiles/file/muvefuwape.pdfIn PDF document text
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087192321553---rumimeduxojaginug.pdfIn PDF document text
- http://www.aadhar-interior.com/userfiles/file/35674159695.pdfIn PDF document text
- http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a96325c24d5---kidofaxewiliwugegimimezej.pdfIn PDF document text
- https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a03c42b1dee---xerikenuwovo.pdfIn PDF document text
- https://calmoinc.com/upload/editor/file/6179973026.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=caster+pc+sur+freebox+revolutionPDF 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000de68.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE68 | 5180 bytes |
SHA-256: 6af59923d43268e57a91937ffd845a18e7d809e662e0d90cfadd8d267d3bb32e |
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font_01_sfnt_off0000f019.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF019 | 12148 bytes |
SHA-256: 4c33f814e047a02c7bd23da56a3dd52ac7d3a381e66dfb8f17e8a4007996a449 |
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