MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external links, many hosted on compromised or disposable domains, indicative of a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The presence of multiple PDF-related heuristics further supports its nature as a malicious document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://pistant.ru/uplcv?utm_term=ppsspp+gundam+seed PDF link annotation
- http://space-edge.com/upload/files/73016279843.pdfIn PDF document text
- http://malir-naterac.info/UserFiles/File/vugiwewebibebebidafo.pdfIn PDF document text
- http://hastensandbreakfast.nl/userfiles/file/18851319211.pdfIn PDF document text
- https://halkum.rs/files/83117338645.pdfIn PDF document text
- http://cbcom.fr/ressource/site-image/files/detawexijomofonepol.pdfIn PDF document text
- https://madhubanindiancuisine.com/nbloom/fckuploads/file/dirawaxunukubekupifidud.pdfIn PDF document text
- http://squash-fitness.cz/userfiles/file/gewovesi.pdfIn PDF document text
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1613d9a558d7f3---20852928686.pdfIn PDF document text
- http://luchetti.it/userfiles/files/22741147370.pdfIn PDF document text
- http://pttaccounting.com/userfiles/files/99513426661.pdfIn PDF document text
- http://www.tiande-global.com/ckfinder/userfiles/files/68279750011.pdfIn PDF document text
- https://nucamsa.es/userfiles/files/jitorisadeximibisatagom.pdfIn PDF document text
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/e24a3e301f158e03d58b6b93962fb38b/xusebusav.pdfIn PDF document text
- http://www.thunderesp.com/ckfinder/ckfinder.htmlfiles/lefejuzisujominalovonak.pdfIn PDF document text
- https://webvitamin.vn/app/webroot/uploads/files/9493628733.pdfIn PDF document text
- https://dadrarad.ro/userfiles/file/95728799508.pdfIn PDF document text
- http://wish-pharma.com/upload/files/repefit.pdfIn PDF document text
- http://szhlfz.net/upload/lerukazolefinir.pdfIn PDF document text
- http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b0e0da049d---dirugukox.pdfIn PDF document text
- https://regaluxiluminacion.com/uploads/assets/file/wefekawumomezi.pdfIn PDF document text
- http://testsitehq.com/ckeditor-ckfinder-integration/uploads/files/10483039908.pdfIn PDF document text
- https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/vac6u2695oafl6t6253quhaag0/nedobomefirilifafes.pdfIn PDF document text
- https://istanajp2.com/contents/files/35632999205.pdfIn PDF document text
- http://kwiatmetal.pl/userfiles/file/rubixezixo.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_off0000cb4f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB4F | 17548 bytes |
SHA-256: b78bc6f71b58dcddba79a4be18f47d655a82d48cda9265b2eaef8ae0f302fe7b |
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font_01_sfnt_off0000f923.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF923 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001113a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1113A | 10380 bytes |
SHA-256: 85653a3fd70b222bc081b35ba9b027cb5857b28884a84c05a2fc3a34852b96b0 |
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