MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised CMS uploads and disposable hosting, indicating a link farm designed to redirect users to potentially malicious sites. The ML classifier and ClamAV detection strongly support its malicious nature, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/tuptm68t0c2cgem18s5pkbk5v1/xakulabisawuzefajula.pdf In PDF document text
- https://vietnaminsight.biz/ckfinder/userfiles/files/45781433893.pdfIn PDF document text
- http://www.blueoak.fr/image/file/8688479310.pdfIn PDF document text
- https://noddy.nu/images/file/xorizijijidofilo.pdfIn PDF document text
- http://laclonghotel.vn/upload/files/56911543520.pdfIn PDF document text
- https://jesssmithtri.com/jesssmith/ckfinder/userfiles/files/wirobew.pdfIn PDF document text
- http://gryfarmerskie.pl/pliki_wyswig/files/41402683969.pdfIn PDF document text
- https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077bb7f51336---tawikaviwez.pdfIn PDF document text
- http://www.sindafaz.com.br/admin/editor/ckfinder/userfiles/files/77710394838.pdfIn PDF document text
- http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f95164296e9---molepexeramunifasaduzare.pdfIn PDF document text
- http://dentalweek.eu/userfiles/files/82580467525.pdfIn PDF document text
- http://nemdanangpho.com/uploads/2021-05-26/images/files/7073152640.pdfIn PDF document text
- http://bizbecho.com/pa/trainstation/uploads/image/file/nupafaxufofaxeseke.pdfIn PDF document text
- https://tenshinorchids.com/FCKeditor_upload/file/luwenalopuwilonojijus.pdfIn PDF document text
- https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/b3384d1ddae40416068d05e32b69052c/63497276986.pdfIn PDF document text
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160a79940720ee---dukulezidogesizi.pdfIn PDF document text
- http://teakdeck.pl/files/file/jadaketuvedozojamejupiraw.pdfIn PDF document text
- http://mav-auto.ru/images/file/dowomisajaz.pdfIn PDF document text
- http://dobrasekacka.cz/userfiles/file/pononivupizabelakakudi.pdfIn PDF document text
- https://clubforeducation.com/FCKeditor/userfiles/file/wapukedanupetu.pdfIn PDF document text
- https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/h98qpf5k9g8n3l32m9rht808u4/vulubudinegem.pdfIn PDF document text
- http://steakclubhn.com/campannas/file/96516487596.pdfIn PDF document text
- https://ortechindustries.ca/ci/userfiles/files/42077024907.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=finding+the+unknown+in+multiplication+and+division+worksheetPDF 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_off0000d2e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2E4 | 17832 bytes |
SHA-256: a53775c791df046f8725d502cfac3c11b98d74561525fb2b78faec9e63f1d36a |
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font_01_sfnt_off000100da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100DA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000118f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118F1 | 11284 bytes |
SHA-256: d0de16a9c825896c87da38a4783b3f2edf78d70d5bbc52c1775f3898915e2762 |
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