MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external links, with several heuristics indicating it functions as a link farm. Notably, some links point to compromised WordPress upload storage, suggesting a distribution point for malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://www.vasutaszeneiskola.hu/ckfinder/userfiles/files/34707217700.pdf In PDF document text
- http://casaperugia.fr/userfiles/file/8515704556.pdfIn PDF document text
- http://faurerom.com/userfiles/file/wiwoneg.pdfIn PDF document text
- http://bright-mineral.com/uploadfile/file/2021091520581335.pdfIn PDF document text
- http://prasongp.com/file_media/file_image/file/xisimotimewim.pdfIn PDF document text
- http://autowagon.it/userfiles/files/76711457316.pdfIn PDF document text
- http://dancephoto.ru/userfiles/files/69292507677.pdfIn PDF document text
- http://www.zywawiara.pl/pliki/44317386497.pdfIn PDF document text
- http://belovosushi.ru/files/zumuxixa.pdfIn PDF document text
- http://matchonusa.com/uploads/files/ganudota.pdfIn PDF document text
- http://krukewittfarms.com/userfiles/file/52353977812.pdfIn PDF document text
- http://devveb.net/userfiles/file/ruzolizakesa.pdfIn PDF document text
- http://buyyoutubecomments.com/ci/userfiles/files/xojariroludulu.pdfIn PDF document text
- https://basealimentare.it/webroot/files/fck_uploads/File/17011821686.pdfIn PDF document text
- http://newbiesites.com/userfiles/file/zagomokiwo.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613364c4ee75b---38832923084.pdfIn PDF document text
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f3b30dc39f---vurupudiwebikepixizibu.pdfIn PDF document text
- https://sibservis.com/ckfinder/userfiles/files/78084170090.pdfIn PDF document text
- http://luyenthidhcanhsat.com/Images_upload/files/razotutev.pdfIn PDF document text
- https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/bf57b9876dc5c903049912d86af206ad/70304368576.pdfIn PDF document text
- https://italvaping.com/file/69192840056.pdfIn PDF document text
- http://dfwarbitrator.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/77720739724.pdfIn PDF document text
- https://slezanie.eu/userfiles/file/80829807081.pdfIn PDF document text
- http://kliknetezde.cz/admin/obrazky/file/14127582290.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=recently+used+apps+androidPDF 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_off0000e3db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3DB | 10764 bytes |
SHA-256: d18f965ec2dddabb963e95590c73884e8e661b972c2579994f6353d4de65ac86 |
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font_01_sfnt_off0000fcc9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCC9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000114db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114DB | 17672 bytes |
SHA-256: 9adf0142be3feb183e41668ee73cd833d2648bfbef1093d326b0792904a8afce |
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