MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by a machine learning classifier and ClamAV. It contains numerous embedded URLs, many of which point to websites hosted on compromised CMS platforms or disposable domains, suggesting a phishing or malware distribution scheme. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure indicates a malicious link farm.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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://www.contal-farmer.com/uploads/files/semumujubapid.pdf In PDF document text
- http://lechioutdoor.com/userfiles/file/31439125467.pdfIn PDF document text
- http://momsystem.ru/public/file/zukofim.pdfIn PDF document text
- http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613db8d93cc9b---34077155385.pdfIn PDF document text
- http://impressivetravelvietnam.com/upload/files/39757524634.pdfIn PDF document text
- https://csmgh.net/pevron/www/img/file/52496539302.pdfIn PDF document text
- https://deshpanday.com/ckfinder/userfiles/files/71481439459.pdfIn PDF document text
- http://sure2trips.com/bot/ckfinder/uf/files/wapitekosuvujiranizi.pdfIn PDF document text
- https://eletmodguru.hu/files/files/71988357860.pdfIn PDF document text
- https://ciar.vn/uploads/image/files/52521109270.pdfIn PDF document text
- http://dgelc.com/userfiles/file/20210901224452.pdfIn PDF document text
- http://montpellier-businessplan.fr/mbp/upload/images/images/upload/ckfinder/20134292417.pdfIn PDF document text
- http://serenetour.com/image/upload/File/8945849868.pdfIn PDF document text
- http://ip-golubev.ru/ckfinder/userfiles/files/51860690521.pdfIn PDF document text
- http://kystar.net/filespath/files/20210907165738.pdfIn PDF document text
- http://rfaaa.com/UploadFile/file/20210909011106270.pdfIn PDF document text
- http://3dprofi.net/images/uploads/file/bodenazolo.pdfIn PDF document text
- https://denimder.org/resimler/files/sedabujolita.pdfIn PDF document text
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16131514ba429a---48086557661.pdfIn PDF document text
- https://espritgt.com/userfiles/file/7875184941.pdfIn PDF document text
- http://hz-karavany.cz/ckfinder/userfiles/files/86051405155.pdfIn PDF document text
- http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613614407719e---34558065659.pdfIn PDF document text
- http://xn--lv0az70cxar.tw/uploads/files/202109051709119062.pdfIn PDF document text
- http://konikanarrowfab.com/ckfinder/userfiles/files/896699794.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=how+to+print+large+pdf+on+multiple+pagesPDF 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_off0000c6ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6FF | 17092 bytes |
SHA-256: c7becd31d76e9e7e38164990b11dfbe9fd38667ebf280cf3189cdc5b7823af11 |
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font_01_sfnt_off0000f22e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF22E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010a45.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A45 | 11016 bytes |
SHA-256: 4bb90f5efca70f92320810a6dbee538de7e39690e072ef4de180e77216f1702b |
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