MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a link farm pointing to multiple domains, some of which are identified as compromised CMS uploads or disposable hosting. The presence of external URIs and a link farm suggests an attempt to redirect the user to a malicious download site, likely to deliver a second-stage payload.
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://infrive.ru/uplcv?utm_term=download+new+pipe+for+android PDF link annotation
- https://dbjadow.pl/attachments/file/situlisokulixe.pdfIn PDF document text
- https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/a745fa17c1a378bc990ee224d2f58069/68103105630.pdfIn PDF document text
- http://steelbo.com/uploads/admins/u0/files/20210911082132.pdfIn PDF document text
- http://stoewebdesign.no/userfiles/file/mekunidol.pdfIn PDF document text
- https://erdemlerkoleji.com/resimler/files/92726964152.pdfIn PDF document text
- https://aljuboori.com/userfiles/files/96385954027.pdfIn PDF document text
- https://kudamatsu.org/userfiles/file/zetelemazaxupalesebol.pdfIn PDF document text
- http://palami.by/images/file/vumisutawulifob.pdfIn PDF document text
- http://cinstech-inspect-survey.com/fckeditor_userfiles/file/sinasotetibojasi.pdfIn PDF document text
- https://yumasri.com/assets/ckfinder/userfiles/files/jemujalovanizomapeborisu.pdfIn PDF document text
- https://greenlandpark.com/uploads/files/54685889564.pdfIn PDF document text
- https://meganimal.pt/site/upload/file/72592578689.pdfIn PDF document text
- http://tutaylamhet.com/storage/ckfinder/files/95389428206.pdfIn PDF document text
- https://doucetplasticsurgery.com/ckfinder/userfiles/files/45728396720.pdfIn PDF document text
- https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/07np3r75inr9ve1926s4ps2s7j/37906778250.pdfIn PDF document text
- https://rabudiagnostic.com/userfiles/files/54416335433.pdfIn PDF document text
- http://sokole-tps.pl/userfiles/file/kexuvomuguxosob.pdfIn PDF document text
- http://cc-loges.com/uploads/file/vatujedafulotifivapo.pdfIn PDF document text
- http://jjkxmy.com/upload/files/202109101017459275.pdfIn PDF document text
- http://alrabbanoilandgas.com/file/files/14184379193.pdfIn PDF document text
- https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137e1660943a---21169958866.pdfIn PDF document text
- https://degardo.hollandpazsit.hu/ckfinder/userfiles/files/kizunefudegebaximanu.pdfIn PDF document text
- http://jr.ac.th/ckfinder/userfiles/files/gigufifawogozisag.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_off0000b000.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB000 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c812.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC812 | 14272 bytes |
SHA-256: 9ae589dd101bcf0f8d211acb08f2a060a6f8bbf332db33465d5e3b9435791467 |
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font_02_sfnt_off0000ebdd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBDD | 10312 bytes |
SHA-256: 93dc32c4feea853ca6976c39c469f263ecb8420501cfcd4a11eb919c3df7fdb1 |
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