MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of embedded URLs, many of which point to other PDF files hosted on compromised or disposable domains. This behavior is characteristic of a link farm used to distribute malicious content or conduct phishing campaigns. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://crewmak.ru/uplcv?utm_term=best+mobile+under+12000+in+bd PDF link annotation
- https://semot.com/Store/userfiles/file/40347058063.pdfIn PDF document text
- http://huichem.com/ckfinder/userfiles/files/99250973009.pdfIn PDF document text
- https://superchills.com/userfiles/file/noxivebiwanid.pdfIn PDF document text
- https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/d7fab0fb9d4fe0da19f55aecc28962d4/37953819447.pdfIn PDF document text
- http://okna-kurska.ru/page_edit/_samples/userfiles/files/86769304778.pdfIn PDF document text
- https://h016s5or78-du3.com/contents/files/23068300916.pdfIn PDF document text
- http://thuephotocopytaihanoi.com/upload/files/tuledoraxuvusebaxazuxas.pdfIn PDF document text
- http://srmtteaparty.com/uploads/files/202109111150388010.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145be9e88103---9504536886.pdfIn PDF document text
- https://muzpony.de/obrazki/file/wutogowuriwuzaxubod.pdfIn PDF document text
- https://gionggiacam.gagiongvitgiong.com/ckfinder/userfiles/files/28039832908.pdfIn PDF document text
- http://fortwashington.abwingsmd.com/uploads/files/46721873220.pdfIn PDF document text
- http://stonestudio.pl/files/upload/file/nibakase.pdfIn PDF document text
- http://iltorg.ru/upload/file/kejufowogu.pdfIn PDF document text
- http://popnmusic.fr/userfiles/file/fozemokijesem.pdfIn PDF document text
- https://fotobolfestmeny.hu/mvc/userfiles/file/zobabifukakanozo.pdfIn PDF document text
- http://phoiinnhiet.com/images/uploads/files/bigokasegifedufu.pdfIn PDF document text
- http://studiopol.it/userfiles/files/63342453858.pdfIn PDF document text
- https://cukimentescukraszda.hu/files/files/46166762986.pdfIn PDF document text
- https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/ea0c1f98dd47189e2b22f0215468cffd/xowufutaxosuwib.pdfIn PDF document text
- http://icmasistemas.com/userfiles/files/46638061644.pdfIn PDF document text
- http://fipjp.com/userfiles/file/91627120299.pdfIn PDF document text
- http://jgbt.us/pds/userfiles/files/zadonavotop.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_off0000c9f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9F8 | 18392 bytes |
SHA-256: b6fde71ccd48ef7b9dddb8ddf21a0cf41d43982c0d4738646c845ea70df0139d |
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font_01_sfnt_off0000fa57.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA57 | 10836 bytes |
SHA-256: 7429e707ecd276c60fe94765445025aa5d176b9ae81e00305258ad7ff68c1c4c |
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font_02_sfnt_off0001135e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1135E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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