MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple external websites, some hosted on potentially compromised or disposable domains. The presence of numerous PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM firings strongly suggests a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://berbun.com/user_img/file/30548613588.pdf In PDF document text
- https://www.wroclawmodelshow.pl/ckfinder/userfiles/files/47168662395.pdfIn PDF document text
- http://creative-format.com/upload/editor/files/sufolowevorikiviwu.pdfIn PDF document text
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/16150814a657cd---98512367521.pdfIn PDF document text
- http://madang.eu/f_pds/fck/file/sawaxezeb.pdfIn PDF document text
- http://monticellotownship.org/userfiles/file/binilu.pdfIn PDF document text
- http://m-s-g.ru/userfiles/files/14376395818.pdfIn PDF document text
- http://www.mueblesgamez.com/ckfinder/userfiles/files/54385582057.pdfIn PDF document text
- https://supportsystemsvainc.com/home/ssvi/public_html/ckfinder/userfiles/files/3749864751.pdfIn PDF document text
- http://vlajamo.cz/images/file/72394896508.pdfIn PDF document text
- https://vietfun.com.vn/wp-content/plugins/super-forms/uploads/php/files/379l2hrd8nj3968b5p5ddi3ica/8726517027.pdfIn PDF document text
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1614b0f9f50f55---10538404662.pdfIn PDF document text
- https://skinrepublic.vn/webroot/img/files/voniremuwu.pdfIn PDF document text
- https://slide-bearing.com/d/files/46642457590.pdfIn PDF document text
- http://chanhungcorp.com/images/uploads/files/506502839.pdfIn PDF document text
- https://www.champagne-auge-dascier.com/ckfinder/userfiles/files/23610587503.pdfIn PDF document text
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139559107836---4995100929.pdfIn PDF document text
- https://tgvl.in/uploads/fck/files/70088327156.pdfIn PDF document text
- http://lingvastar.z-i-g-z-a-g.com/userfiles/files/92615915963.pdfIn PDF document text
- https://postelezmasivu-ostrava.cz/ckfinder/userfiles/files/52682317731.pdfIn PDF document text
- http://www.dkmodels.net/ckfinder/userfiles/files/jisitukedilaselab.pdfIn PDF document text
- http://kunbot.com/upload/files/42889296740.pdfIn PDF document text
- http://marcus-1.com/FileData/ckfinder/files/20210905_9ED66D9D24BD8587.pdfIn PDF document text
- http://proclima-membranes.ru/userfiles/file/68347286788.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=watch+ind+aus+live+onlinePDF 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_off0000af01.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF01 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c718.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC718 | 10528 bytes |
SHA-256: 87f6454ee084a080ce766b0abba637062ee37afe3a4018d0b9c6646c72ecddcf |
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font_02_sfnt_off0000df14.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF14 | 14972 bytes |
SHA-256: 3e49a9a49d4c122b0ca8d6e17a0ac473e6df4b0afe9567eb134977b2dd2ebe12 |
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