MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs, many of which point to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to redirect users. Heuristics and ML classification strongly indicate malicious intent, with ClamAV specifically identifying it as a Pdf.Phishing.Trojan. The presence of multiple external URIs and link farm characteristics points towards a phishing or credential harvesting attempt, likely delivered as a spearphishing attachment.
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://qualityroofinnandsuites.com/nbloom/fckuploads/file/13872383108.pdf In PDF document text
- http://toshiteriyakiburien.com/uploads/files/lerakaxawerijitixufakisu.pdfIn PDF document text
- https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1612fb88fe1476---nokevataninuvunuvoda.pdfIn PDF document text
- http://uslugi-ogrodnicze.pl/pliki/File/5113571019.pdfIn PDF document text
- http://mgbig.com/upload_fck/file/2021-9-3/20210903084447504438.pdfIn PDF document text
- http://ottotech.center/userfiles/file/miruzepinogir.pdfIn PDF document text
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/16143caa12ab06---87518752652.pdfIn PDF document text
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/55995a07cefe53fbea30ef46be9f4171/81455453777.pdfIn PDF document text
- http://panyuchen.com/ckfinder/userfiles/site_eachfun_com/files/26259734301.pdfIn PDF document text
- http://olymp-kiev.com/temp/fckeditor/file/91258054077.pdfIn PDF document text
- http://dralituncer.net/userfiles/file/91571846962.pdfIn PDF document text
- https://basisangka.com/contents/files/xuvujimi.pdfIn PDF document text
- http://deshdunya.com/blogimage/file/62203872773.pdfIn PDF document text
- https://johanbjerke.se/userfiles/file/gelokisule.pdfIn PDF document text
- https://ises.ca/phpsites/vertical_living/uploads/file/busipevirutoba.pdfIn PDF document text
- http://www.ks-klinika.ru/ckfinder/userfiles/files/tukipuxadisid.pdfIn PDF document text
- http://www.hausman.eu/images/wyswig_images/file/25735627603.pdfIn PDF document text
- http://streetnn.ru/data/upload/ck/files/kizubetalukivepuja.pdfIn PDF document text
- http://apex-architect.ru/images/file/66868755247.pdfIn PDF document text
- http://pc-driver.ru/userfiles/files/nakujowewezogezoziwuxu.pdfIn PDF document text
- http://vonschickenconcord.com/uploads/files/1541324278.pdfIn PDF document text
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613587bf46018---69582154253.pdfIn PDF document text
- http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/161426fd01ebd7---gomivivid.pdfIn PDF document text
- https://badeluxe.com/userfiles/files/6094813592.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=candy+crush+mod+unlimitedPDF 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_off0000da78.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA78 | 18572 bytes |
SHA-256: 17b31c9458a1fe896b6eda649eaa810122e5c447b97c54ba435722cbacb68948 |
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font_01_sfnt_off00010a94.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A94 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000122ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122AB | 10880 bytes |
SHA-256: 5902117bd96b5888cd7427b006f8bbe686100aafd472fc52a313c31208c431e5 |
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