MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, directing users to multiple external URLs hosted on compromised or disposable domains. The presence of numerous links, some with 'utm_term' parameters suggesting search engine optimization tactics, points towards an attempt to lure users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://jfac.kr/ckfinder/userfiles/files/10695944356.pdf In PDF document text
- https://kurek-rowery.pl/user_pict/file/45455884556.pdfIn PDF document text
- https://stollerco.com/testingsites/advantage_aviation/assets/media/file/17779221695.pdfIn PDF document text
- https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/8e1ff1491e3d8bae5df9b83dca2a58fd/zonifiwozujanaw.pdfIn PDF document text
- https://freshchannels.com/home/sites/freshchannels/public_html/ckfinder/userfiles/files/76692915357.pdfIn PDF document text
- https://olterus.org/contents/files/nemuvida.pdfIn PDF document text
- https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/80f429e22e13efa6421a7f35e257b1fa/49007871163.pdfIn PDF document text
- http://donkaew-furniture.com/ckfinder/userfiles/files/47829133211.pdfIn PDF document text
- http://windowsplusllc.com/ckfinder/userfiles/files/365165353.pdfIn PDF document text
- http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/161353ac77c9bb---80361415445.pdfIn PDF document text
- https://syteq-pro.com/userfiles/file/37767197207.pdfIn PDF document text
- http://etcpremium.com/userfiles/files/79677426114.pdfIn PDF document text
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/40ecb9052a84c30081254fe9e07422f4/tunodosuvalesidu.pdfIn PDF document text
- https://mahanakhon.pacedev.com/ckupload/files/pebulegufi.pdfIn PDF document text
- http://fszhenjia.com/upfolder/e/files/20210904085616.pdfIn PDF document text
- https://sieuviet.net/webroot/img/files/90324044926.pdfIn PDF document text
- http://files.ibiza-ferien.de/file/86013400054.pdfIn PDF document text
- https://premiersuli.hu/files/files/gitez.pdfIn PDF document text
- https://mytekas.com/UserFiles/file/fejogosus.pdfIn PDF document text
- http://garankuccu.com/upload/fckimagesfile/aeaf7f5a09cfcfaa7b317ea35e52f3ef.pdfIn PDF document text
- http://gaytonfa.com/upload/files/67211189600.pdfIn PDF document text
- http://bjsixiang.com/jingkelun/userfiles/files/20210907113414.pdfIn PDF document text
- http://asupuro.com/user_data/image/file/79808402767.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=cash+app%2B%2B+apkPDF 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_off0000dcc9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCC9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f4db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4DB | 18040 bytes |
SHA-256: a72781a2eede6bd6aa0f7a40ef9c344900331ed65105ee2bffefd6cec5e74f8f |
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font_02_sfnt_off000123d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123D1 | 9780 bytes |
SHA-256: 31a5831afd4f69e57133c391584781dfd0150c6b3015b1b4620c575619361502 |
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