MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous links to compromised WordPress sites, suggesting it's part of a link farm designed to distribute malware. The embedded URLs and the heuristic findings point towards an attempt to trick users into downloading a malicious file, likely disguised as a user guide.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://crysiq.ru/uplcv?utm_term=iphone+7+user+guide+free+download PDF link annotation
- https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/55dc577a7c6b8939202d2b4040aaa3ac/49884857628.pdfIn PDF document text
- https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/c9f604d55bae6971f59b6d07c71cb52a/25430250062.pdfIn PDF document text
- http://aprendanow.com/wp-content/plugins/super-forms/uploads/php/files/a820d0a5474e6aabba6928809c2582b1/buwebawog.pdfIn PDF document text
- http://omgmediatank.com/userfiles/files/37897991242.pdfIn PDF document text
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/c71c1d15aab53f451c4ae69a2bfb3e64/95656994600.pdfIn PDF document text
- https://imagebuzz.net/ckfinder/userfiles/files/31827195002.pdfIn PDF document text
- https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606d4c4d5032b---varos.pdfIn PDF document text
- http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073e1da5d06e---70173588186.pdfIn PDF document text
- http://www.molinoag.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afdbcee938c---papesumojukuvekituz.pdfIn PDF document text
- http://koszyczarek.pl/userfiles/file/juvozuw.pdfIn PDF document text
- https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1608752ae97de8---93095562116.pdfIn PDF document text
- http://wksystems.net/HotelEstimator/userfiles/file/76904592181.pdfIn PDF document text
- http://amazingindiaphotos.com/amazingindiaphotos//upload/fckimage/file/98594971248.pdfIn PDF document text
- https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092742373335---83579393885.pdfIn PDF document text
- http://rencontres-icare.org/userfiles/file/milod.pdfIn PDF document text
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/16079f0577f061---disatosenif.pdfIn PDF document text
- http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099f563b8e2a---56202253022.pdfIn PDF document text
- https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/94e990df7adc7b6710ad0bca3dc679b9/96193533860.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f70f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF70F | 5412 bytes |
SHA-256: 17e7ee89172f421961ecb4271d41df5c11fa91e1eeb3793ecc0f058b20ad3187 |
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font_01_sfnt_off0001098f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1098F | 10936 bytes |
SHA-256: e20a2249f28ada6bcd992aca6e81c0c75d6f800bbe653e2ca227e5ccc77045bd |
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