MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous URLs pointing to compromised websites and disposable hosting, suggesting it functions as a link farm to redirect users to phishing or malware download sites. The presence of external URI links and a link farm heuristic strongly supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 https://smidgel.ru/uplcv?utm_term=the+perks+of+being+a+wallflower+by+stephen+chbosky+pdf PDF link annotation
- https://sensesgrouphk.com/louis/STARKGROUP/ckfinder/userfiles/files/buxisanukirojalajamip.pdfIn PDF document text
- http://rafaelstore.ru/upload/files/kipirukilobusodasisipid.pdfIn PDF document text
- https://beautifulhairstore.com/upload/files/rumekebiroz.pdfIn PDF document text
- http://reszke.pl/fckeditor/editor/filemanager/connectors/php/file/31430590860.pdfIn PDF document text
- http://nexxstep.nl/userfiles/file/dumasukifajajolufi.pdfIn PDF document text
- http://www.catedralirodahaz.hu/data/editorfile/70906826300.pdfIn PDF document text
- http://lienming-rubber.com/uploads/files/202109101118243879.pdfIn PDF document text
- http://ronaldtan.nl/images/photo/32274413785.pdfIn PDF document text
- https://suacuachuyennghiep.com/uploads/files/jogidafi.pdfIn PDF document text
- https://nawaasha.org/userfiles/file/pugob.pdfIn PDF document text
- https://dienmayminhchau.vn/uploads/news_file/zulawisiji.pdfIn PDF document text
- https://profitaler.com/UserFiles/file/visikejalutevonowizanuwi.pdfIn PDF document text
- https://greenbins.ca/ckfinder/userfiles/files/divakadajutipenipiwinokid.pdfIn PDF document text
- https://marwaautorepair.com/nbloom/fckuploads/file/munajukapevagozananubil.pdfIn PDF document text
- http://meetburgerusa.com/uploads/files/57723439682.pdfIn PDF document text
- http://domgr11.ru/uploads/files/64341630660.pdfIn PDF document text
- https://www.willmarareachamber.com/ckfinder/userfiles/files/40862318624.pdfIn PDF document text
- http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1613b6354d5687---lubedu.pdfIn PDF document text
- http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/kmkaol3n6psrbs1jqb6vdrrv25/vomaporakagebus.pdfIn PDF document text
- http://vp-dmsh.ru/admin/ckfinder/userfiles/files/xijawemavekimagebewu.pdfIn PDF document text
- http://kashima.cc/userfiles/file/zopugudatoxiduliretejakuf.pdfIn PDF document text
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16130376b132a2---xelevunirim.pdfIn PDF document text
- https://lyna-garage.com/htdocs/cljr/data/files/keridagisu.pdfIn PDF document text
- 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_off0000dff5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFF5 | 17852 bytes |
SHA-256: 56c81a94e4db615d6811cb3f6d47b30133a69daa6cfdd2eb048aa95fd14461fc |
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font_01_sfnt_off00010e80.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E80 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012697.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12697 | 11296 bytes |
SHA-256: ab821f0a38205663819ff1a5e2bade81e16979b8d5b6013360a70b0d7866d7a1 |
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