MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous external links, many pointing to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://nomylo.ru/uplcv?utm_term=stainless+steel+casting+foundry PDF link annotation
- http://alocainghien.com/uploads/userfiles/file/22000733500.pdfIn PDF document text
- http://sartoriaventurini.com/userfiles/files/31307406543.pdfIn PDF document text
- http://emons-verlag.net/testarea/cwsCMSlight/media/files/gijaxobifas.pdfIn PDF document text
- https://infiniteprospects.com/FCKeditor/file/96391671189.pdfIn PDF document text
- https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/16156613ba5f6a---98834790333.pdfIn PDF document text
- https://santa.sg/images/users/00000000/files/wuluvevagekiwukinemuti.pdfIn PDF document text
- https://dentalrud.com/userfiles/file/dinogepu.pdfIn PDF document text
- https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/aa20ce5b941b873e3f437c206409d4f0/71899982536.pdfIn PDF document text
- http://aktifithalat.com/resimlerfiles/livoju.pdfIn PDF document text
- https://newfrio.com/userfiles/files/25799455293.pdfIn PDF document text
- http://gesht.ru/admin/ckfinder/userfiles/files/44961272002.pdfIn PDF document text
- http://wksx.top/images/userfiles/file/xanobe.pdfIn PDF document text
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1612edd9d170c0---xavuvik.pdfIn PDF document text
- https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/161388e1fd3b1a---1645049732.pdfIn PDF document text
- https://dycmc.com/DATA/upload/files/202109170011092660.pdfIn PDF document text
- http://c2ctrading.org/cms_upload/files/39111672668.pdfIn PDF document text
- http://nathulaldasptti.com/ckeditor/ckfinder/userfiles/files/99936972568.pdfIn PDF document text
- https://nguyenthelong.net/userfiles/files/79964945387.pdfIn PDF document text
- http://makinsushi.com/uploads/files/84078873721.pdfIn PDF document text
- http://tmkb.org.tr/ckfinder/userfiles/files/30238065688.pdfIn PDF document text
- http://chistogood.ru/admin/ckfinder/userfiles/files/liredusubupinifok.pdfIn PDF document text
- https://bbox.ru/images/shared/file/18829975587.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_off0000c037.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC037 | 10940 bytes |
SHA-256: 456752b810959bc59e83207a3f2719cde2630ad9d1cbbbaf5e3f1204bde2b490 |
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font_01_sfnt_off0000d97c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD97C | 16828 bytes |
SHA-256: 739111932be9dbb5eeffbc1affc69b5d0a4075eafdfc037cf9c0250958bdb724 |
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font_02_sfnt_off000104f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104F2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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