MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document contains a link farm pointing to various domains, many of which appear to be compromised WordPress sites, suggesting an attempt to distribute malware or phishing content. The presence of a 'password-protected archive lure' heuristic further supports the idea that the user is being tricked into downloading an encrypted malicious payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9822
Heuristics 8
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://chcial.ru/uplcv?utm_term=app+for+hiding+pictures+and+videos PDF link annotation
- http://cachnhietcacham.vn/Images_upload/files/mejufu.pdfIn PDF document text
- https://rivieresoceanie.com/ckfinder/userfiles/files/79375279278.pdfIn PDF document text
- http://akkoryazilim.com/userfiles/file/nesidaxubapedumifimov.pdfIn PDF document text
- http://af.ssla.ru/images/fornews/files/womizad.pdfIn PDF document text
- http://firewheels.pe/userfiles/file/vebizezenadewotumonokezil.pdfIn PDF document text
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070d9ad85d24---dawog.pdfIn PDF document text
- https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/439a26e26f6f10c84968656f1db65a72/rifigogoxorupanezugeb.pdfIn PDF document text
- https://srp-galabau-rostock.de/wp-content/plugins/super-forms/uploads/php/files/mqjntredab8ht78tkbhkbgtvth/kufuvuturuxavedufegi.pdfIn PDF document text
- http://cancercareresearch.com/userfiles/file/peguweve.pdfIn PDF document text
- http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/1609ec4cfaaa39---tixupolu.pdfIn PDF document text
- http://thaihotelsale.com/FileData/ckfinder/files/20210620_D4F5BEA033243470.pdfIn PDF document text
- http://lab4050.com/upload/editor/file/98011642521.pdfIn PDF document text
- http://indago-rovigo.it/userfiles/files/povodewojojileboli.pdfIn PDF document text
- http://plenaadoracao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160790a1284eb9---lusirutosif.pdfIn PDF document text
- https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/e4a3c53963e2ed14ce0aaaba4f60c946/fudosiwubovepolad.pdfIn PDF document text
- https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfc52c747e0---bajurebasiw.pdfIn PDF document text
- https://nilsahost.com/calisma2/files/uploads/pudasarosixopaxetamo.pdfIn PDF document text
- https://duext.com/wp-content/plugins/super-forms/uploads/php/files/c370f15d3bdc30e9f8567d3b9d79a99d/34845781310.pdfIn PDF document text
- http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/160a8840f6a7aa---49783618682.pdfIn PDF document text
- http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160b45baeca47d---dosefij.pdfIn PDF document text
- https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/e5c1551d0307caf3e0a442ac09249ea3/wuwud.pdfIn PDF document text
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c7f0248c1c---40089624066.pdfIn PDF document text
- https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0f6dc59f96---sonetakoxi.pdfIn PDF document text
- http://normandyclassof79stl.com/clients/e/e1/e16d7b8530e96d8d426d6b963c92b0b5/File/laxevokuteda.pdfIn PDF document text
- https://agenciaboom.com/wp-content/plugins/super-forms/uploads/php/files/16la31uce6b1oilqngg48mj7o0/61769879097.pdfIn PDF document text
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1608797738719a---29374278966.pdfIn PDF document text
- https://al-wesam.com/userfiles/files/vulaxagizejibenom.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_off00010077.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10077 | 17532 bytes |
SHA-256: 70ccc6f0c67b9eb0c5f90623097ffc66f82ba1dc30898291f59b25a64322f0b4 |
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font_01_sfnt_off00012ea4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EA4 | 11000 bytes |
SHA-256: 3b37797c6cc9758ef5fd62694a8ea3059855f9db2a943d8eb723ead0ebe8acc5 |
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font_02_sfnt_off00014804.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14804 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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