MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm or SEO poisoning attempt. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 http://8njl.com/userfiles/files/4467030109.pdf In PDF document text
- http://macierz-grodziec.org/files/file/rokodasidaxolexisewudu.pdfIn PDF document text
- http://sireny.net/share/files/28951783746.pdfIn PDF document text
- http://zatoodesign.com/userfiles/files/44072996808.pdfIn PDF document text
- https://euronuts2009.ge/files/files/51884294571.pdfIn PDF document text
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613835e27d06d---4885300434.pdfIn PDF document text
- https://paklya.su/design/img/upload/file/20046333381.pdfIn PDF document text
- http://sgd42.ru/userfiles/file/32058680478.pdfIn PDF document text
- https://frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/80765998687.pdfIn PDF document text
- https://calson.garment-pro.com/ckfinder/userfiles/files/davomofovosix.pdfIn PDF document text
- http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/1613f58acf01cc---bimonezesojiwidixekevilon.pdfIn PDF document text
- https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/cd89f6ae6b47db85f861f6d5d776018e/monijufane.pdfIn PDF document text
- http://braghieriarchitettura.com/userfiles/files/siwerolaviwe.pdfIn PDF document text
- https://avukatwebsitesi.trakyasoft.com/upload/files/34638649388.pdfIn PDF document text
- http://sm.ac.th/ckfinder/userfiles/files/fudez.pdfIn PDF document text
- http://matsusushionline.com/uploads/files/70641243348.pdfIn PDF document text
- https://h1t-urlaurora1-turbo.com/contents/files/rogiputojewavip.pdfIn PDF document text
- http://masan315.net/board/imagefile/file/532845777.pdfIn PDF document text
- http://zhongguohuachun.com/d/files/tijorenifudiliz.pdfIn PDF document text
- http://thelifelesson.net/home/tappingchanges/public_html/dowalumniusa/ckfinder/userfiles/files/77088027905.pdfIn PDF document text
- http://icsbc.ru/fuploader/file/71546488263.pdfIn PDF document text
- http://elektrostroy.kz/ckfinder/userfiles/files/38708665362.pdfIn PDF document text
- http://miraesusan.com/ckupload/files/5349094333.pdfIn PDF document text
- https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/29205c7d8144ccb6e5f224002fdaa84d/82641864463.pdfIn PDF document text
- https://rijst.nu/userfiles/file/71618908127.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=secret+locker+codes+2k20PDF 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_off0000e1d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1D0 | 19132 bytes |
SHA-256: dc681c3135806cc3bc4c1c44c6e63462e9aa853d2af3d2a1cdbb7c2193bd4ba1 |
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font_01_sfnt_off0001134c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1134C | 10416 bytes |
SHA-256: 636cab4251975a1ed3c85f8d4fe3cb118bf12116ae6c00bd3435e7bdb23678c8 |
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font_02_sfnt_off00012b12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B12 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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