MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links pointing to compromised websites and disposable hosting, indicative of a link farm used for phishing or malware distribution. ClamAV detected this file as 'Pdf.Phishing.Trojan', and ML classifiers also flagged it as malicious. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and URL analysis strongly suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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://egyiksem.hu/uploads/file/31062079138.pdf In PDF document text
- https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/qd1vj5a4op7fu26m763o50i97r/busilato.pdfIn PDF document text
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf7efbe1617---34791241107.pdfIn PDF document text
- http://drkoopman.nl/cmsimages/file/sulidav.pdfIn PDF document text
- http://bbpcosmetics.com/admin/upFiles/2021-5/file/90326680882.pdfIn PDF document text
- http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1608bd7425a9df---69612492147.pdfIn PDF document text
- http://albatrossmrn.com/konadnew/userfiles/file/42281990672.pdfIn PDF document text
- http://www.anieliasfx.com/uploads/textareas/file/retobefus.pdfIn PDF document text
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607e059972d92---50133117547.pdfIn PDF document text
- https://cometsecurity.in/admin/userfiles/file/zanugag.pdfIn PDF document text
- https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/b4186burnh72r2ollac6ht78k5/fatewevuwinuxisu.pdfIn PDF document text
- https://moto-trend.cz/public/files/fck/file/xuzivudipemawik.pdfIn PDF document text
- http://wjvanderheidedienstverlening.nl/uploads/file/73360684211.pdfIn PDF document text
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/f4e894996107c39039cfdba07bfb04ef/81029873766.pdfIn PDF document text
- http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16086c9abbe2cf---61183889710.pdfIn PDF document text
- http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160ab27153faad---jefusederugijezozep.pdfIn PDF document text
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607eb265c2773---95715348654.pdfIn PDF document text
- https://cooperspick.com/files/87493372397.pdfIn PDF document text
- https://widepolymers.com/userfiles/file/47365747019.pdfIn PDF document text
- http://mamnonsaokhue.vn/app/webroot/files/ckfinder/files/92880372668.pdfIn PDF document text
- https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a57506b1790---72151766651.pdfIn PDF document text
- http://nrnchina.com/test/images/ckfinder/files/22658958002.pdfIn PDF document text
- http://wasserburg.pl/userfiles/file/kaxexuxizogitup.pdfIn PDF document text
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d0cc1d95c75---73453278172.pdfIn PDF document text
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16083f207cd517---sekifetomonipip.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606eca54e8587---21079418231.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=heat+transfer+a+practical+approach+solution+manualPDF 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_off0000dd20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD20 | 16796 bytes |
SHA-256: b5b29ef5a43f57d2a84f45037c64e54340c890a7a9ad6ff9d402eb8030f995e0 |
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font_01_sfnt_off00010921.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10921 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012138.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12138 | 10836 bytes |
SHA-256: 4a7e33b2cfcd0b5418efbf5f6fc0449985c28242df93f847477077978a67837f |
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