MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to disposable hosting or compromised CMS upload directories, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution via embedded links.
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 http://bellina.pl/userfiles/file/kutuvuri.pdf In PDF document text
- https://pbchistoryonline.org/uploads/file/48049419777.pdfIn PDF document text
- http://kpotplace.com/uploads/files/regodixowagalojobusigom.pdfIn PDF document text
- http://www.ezmoving.com/file/zetuwukujelisirexakaxited.pdfIn PDF document text
- http://studioguatta.it/userfiles/files/vuderaxixuwinoz.pdfIn PDF document text
- https://ddnepal.com/assets/userfiles/files/92430298658.pdfIn PDF document text
- https://bursakaynak.com/userfiles/file/68333175661.pdfIn PDF document text
- https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/d6a56988147d850fe7e8f21033733d83/rupukavifinim.pdfIn PDF document text
- https://yoimart.com/upload/file/20210908051655.pdfIn PDF document text
- https://unitedfightalliance.jordanadams.com/ckfinder/userfiles/files/viresovexukexav.pdfIn PDF document text
- http://pincesorvarshop.hu/editor_up/kezadu.pdfIn PDF document text
- http://ngnjl.com/userfiles/files/sojitotexodizeriboja.pdfIn PDF document text
- http://kimyasaldubeller.com/upload/ckfinder/files/xisifawomupesakuw.pdfIn PDF document text
- https://highlander-inn.com/assets/userfiles/files/vukasavaveb.pdfIn PDF document text
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/bis20t7cv2tfte3jgp5rndf2o2/69916930988.pdfIn PDF document text
- http://www.mediagrand.hu/data/editorfile/mutiputederonaze.pdfIn PDF document text
- https://syteq-pro.com/userfiles/file/gazofu.pdfIn PDF document text
- https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/231f44c22709a0e9dff63706a0aec598/runix.pdfIn PDF document text
- http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613448983cefc---dutefufanaxog.pdfIn PDF document text
- http://silverspringabw.com/uploads/files/21813799553.pdfIn PDF document text
- http://loveperfectionschool.com/upload/file/tozipotalusasod.pdfIn PDF document text
- http://jgweld18.com/UploadFile/file/20210901133053753.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=mulan+film+online+2020PDF 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_off000117c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117C7 | 10344 bytes |
SHA-256: a60f032797bf2eadde85e30a33125675072524f99e6066b76bb5a36f0edd82bb |
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font_01_sfnt_off00012f13.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F13 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00014725.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14725 | 21056 bytes |
SHA-256: afbb98b3488b74013edadff17d395107d756febb5ae83c4e10d0777b172c15f7 |
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