MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains numerous links to external PDFs hosted on compromised or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of a 'download button' heuristic further supports the lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 7
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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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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 http://abwmercury.com/uploads/files/nemaralata.pdf In PDF document text
- http://wiskind.com/filespath/files/20210903160704.pdfIn PDF document text
- https://anjingliar.com/contents/files/94134046115.pdfIn PDF document text
- https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/h9ff6v9sjq5dkks3pv78trpual/2568534718.pdfIn PDF document text
- http://jr-bang.com/uploadfiles/20210910190649.pdfIn PDF document text
- https://anjingliar2.com/contents/files/88516965721.pdfIn PDF document text
- http://salman-is.com/userfiles/file/48314687085.pdfIn PDF document text
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/161309d3a8ff49---roposekonizofufojoxojov.pdfIn PDF document text
- https://ferado.vn/userfiles/file/4115589107.pdfIn PDF document text
- https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/5c022e6e53d9df10e661e0d0aa6604c3/31025520086.pdfIn PDF document text
- http://angelofthewinds.org/ckfinder/userfiles/files/20305823637.pdfIn PDF document text
- https://www.alapan.org/fckimages/file/saxajegemarenidabapud.pdfIn PDF document text
- http://hijoin.hu/editor_up/40088453488.pdfIn PDF document text
- https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/735d0fdf41120a2fdaf903c9a5d17bb9/59345722977.pdfIn PDF document text
- https://www.almuhja.com/ckfinder/userfiles/files/61331681838.pdfIn PDF document text
- http://ossokahve.com/upload/file/kowatalu.pdfIn PDF document text
- https://questyme.ca/userfiles/file/zuxotunitepefeg.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=aplicativo+para+baixar+video+androidPDF 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_off0000cfb0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFB0 | 10628 bytes |
SHA-256: 4afbf7b4e365daa089113038d3e0aa39a2957c298a21eb9fbd87d5b815e05777 |
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font_01_sfnt_off0000e7f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7F4 | 18364 bytes |
SHA-256: 941ba68cc71a3d6f52ec20536ab2fceab5f3ec4c58d977261425500bbf67d43b |
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font_02_sfnt_off00011735.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11735 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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