MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicative of a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery. The presence of a QR code lure further supports a phishing-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://servingltda.com/userfiles/file/vawamofopez.pdf In PDF document text
- http://omatsuri.kr/data/userfiles/files/35129437742.pdfIn PDF document text
- https://playgametoday.ru/wp-content/plugins/super-forms/uploads/php/files/db56549d50ac3a8ebc057c2b06820a32/tupokaboxe.pdfIn PDF document text
- http://dc-a0dcf319a153.breakthroughsport.com/userfiles/files/watikaverawarovukos.pdfIn PDF document text
- http://kaizenlife.com/ckfinder/userfiles/files/26325407697.pdfIn PDF document text
- https://wineuniverse.us/userfiles/file/debalozitefobamime.pdfIn PDF document text
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613abef3dadd7---nisamuregolinare.pdfIn PDF document text
- http://khaskhaan.mn/uploads/userfiles/files/raremu.pdfIn PDF document text
- https://eseninternational.com/uploads/files/furalasujefuborupinotorox.pdfIn PDF document text
- http://www.biosafety.biz/ckfinder/userfiles/files/89983322961.pdfIn PDF document text
- http://nuuts.mn/uploads/assets/tijigegavatinomefekotosav.pdfIn PDF document text
- http://milkexim.ru/imgeditor/file/jagasezonajomigopivew.pdfIn PDF document text
- http://amandatravel.com/userfiles/file/42695122465.pdfIn PDF document text
- http://touristclub.in/userfiles/file/92254599919.pdfIn PDF document text
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/16131f4af69c5a---mobipovivix.pdfIn PDF document text
- http://cn-junsheng.com/upload/file///20219605179618.pdfIn PDF document text
- https://alariel.be/userfiles/file/7530409771.pdfIn PDF document text
- http://qunjl.com/userfiles/files/12910452252.pdfIn PDF document text
- https://tagoproperties.com/ckfinder/userfiles/files/39954229423.pdfIn PDF document text
- https://grandhotelbulgaria.com/userfiles/file/samevi.pdfIn PDF document text
- http://holzbau-napetschnig.at/xeroguzonatutamupinife.pdfIn PDF document text
- http://gldbirdgel.com/user_img/files/53683207407.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=barcode+scanner+pro+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_off0000cb4a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB4A | 17816 bytes |
SHA-256: c7af8b601d19ae544539f4e5656e52f72f778a1a5b7a920282d5bd5a494a9343 |
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font_01_sfnt_off0000f93f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF93F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011156.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11156 | 10416 bytes |
SHA-256: deb0823db8b6bedd91e22c4a758f0f1bd7760e80323dd712c202a63ec2d3b928 |
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