MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious. It contains numerous embedded URLs, many of which point to compromised CMS upload storage or are part of a link farm on disposable hosting. These URLs likely serve as lures to redirect users to malicious sites, facilitating phishing or further malware delivery.
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 https://bienenaktuell.com/sites/bienenaktuell.com/files/file/74329727742.pdf In PDF document text
- https://support-trevianum.nl/userfiles/files/resabejilomusedetor.pdfIn PDF document text
- http://express-service-auto.fr/ckeditor/ckfinder/userfiles/files/29782171833.pdfIn PDF document text
- https://giriconsultancy.com/content_files/files/wilofis.pdfIn PDF document text
- http://form4concrete.ru/pics/cont/file/37736584428.pdfIn PDF document text
- http://i-harmonics.com/upload/files/27768375128.pdfIn PDF document text
- https://www.jancsoalapitvany.hu/ckfinder/userfiles/files/65613341993.pdfIn PDF document text
- http://chayka-svg.ru/files/56117900039.pdfIn PDF document text
- https://hw-power.com/uploads/ckfiles/files/61372e18447e7.pdfIn PDF document text
- http://smenergy.kr/uploaded/file/179066678612f0c778ed69.pdfIn PDF document text
- https://pvcmikser.com/upload/files/funeserisirufebatekamixo.pdfIn PDF document text
- https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/0021a1322c70e3a01d1e4ee5d2157c41/xisetap.pdfIn PDF document text
- http://ristorantebiscione.com/userfiles/files/6117217848.pdfIn PDF document text
- https://by-express.com/upfiles/editor/files/xowawodezubemo.pdfIn PDF document text
- http://hanhthien.net/uploads/file/54731582263.pdfIn PDF document text
- http://armiikrajowej36.pl/public/upload/ckfinder/userfiles/files/jorexikodidumefug.pdfIn PDF document text
- http://qualityspices.in/ckuploads/files/82012718689.pdfIn PDF document text
- http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/1613cb658206ff---mimoxudapelodigebawivu.pdfIn PDF document text
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613e64ca5eb97---10817000068.pdfIn PDF document text
- https://autotrilogy.com/wp-content/plugins/super-forms/uploads/php/files/74f499cea155320647ede4d887cd23c2/83748316731.pdfIn PDF document text
- https://iwanbim.com/userfiles/files/88996036900.pdfIn PDF document text
- https://studiovizia.com/webroot/img/content/files/80151996215.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=android+photos+to+pdfPDF 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_off0000d6d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6D9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000eef0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEF0 | 10236 bytes |
SHA-256: 6b2db585cf0db8de1e4bbb4a0711c6fcb72518088ca009c44a1691421294f6bf |
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font_02_sfnt_off000105cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105CD | 19148 bytes |
SHA-256: 447ddf597699b2c8b154b7878013a2401c91393a6c6bba17766e9093e1812eeb |
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