MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous embedded URLs that point to compromised CMS uploads and disposable hosting, suggesting it functions as a link farm. The primary purpose appears to be directing users to malicious sites, likely for phishing or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9893
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 https://coretry.ru/uplcv?utm_term=how+to+open+hidden+photos+in+redmi
- http://beccaro.it/userfiles/files/54891897234.pdf
- http://gabortech.com/admin/file/jebavipagerimelagenerejuv.pdf
- http://mfcpavpos.ru/file/84793067222.pdf
- http://podwierzba.eu/ckfinder/userfiles/files/96872237328.pdf
- http://samuiluxurytravel.com/Uploads/file/90624089971.pdf
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144aef2372f4---pikawinekulepulo.pdf
- https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/0de2739cdec27cc4cb91f2220c3268aa/39026501669.pdf
- https://samsunyapi.com/userfiles/files/lezibibeg.pdf
- https://pactforfamilies.org/ckfinder/userfiles/files/winiki.pdf
- https://sinarlangit1.com/contents/files/fuxonafufakef.pdf
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614c3bc242088---56449472667.pdf
- https://marblobathware.ph/app/webroot/img/files/72113329596.pdf
- http://s8radziejowice-paszkow.pl/userfiles/file/45220946703.pdf
- http://topstec.com/d/files/penigede.pdf
- http://terhautz.com/upload_files/files/regijanavumutubivo.pdf
- http://amidoux-peintures.com/ckfinder/userfiles/files/niwupalakajobaxaliwokabi.pdf
- http://abwninemile.com/uploads/files/vefodereraza.pdf
- http://tw-jia.com/uploads/files/202109252153039657.pdf
- https://branchennachweis.eu/userfiles/file/faturi.pdf
- http://vakoplus.cz/klienti/devel/sneznerolby.cz/ckfinder/userfiles/files/89823640868.pdf
- http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/7941cded307627cc5707c46a41dafd81/zetirejovezolevivamej.pdf
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/16144142364f56---pabazofenatiduxumevi.pdf
- https://mhreng.com/userfiles/file/26475133751.pdf
- https://nhabe.com.vn/ckfinder/userfiles/files/lufuwit.pdf
- http://attlas.center/userfiles/file/47092503593.pdf
- http://humanitool.ru/userfiles/file/88387182816.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b228.bincba3bdc894fecf72e6df69175d35d00c7d7d481581eae04fc1d458b9ddd21a90 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB228 | 16952 bytes |
font_01_sfnt_off0000dca3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCA3 | 16792 bytes |
font_02_sfnt_off0000f4ba.bin61d9ec22c709b726252c75d354302f05a92287dcd239c97a009012a86d6bacfd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4BA | 10524 bytes |
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