MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which are hosted on compromised WordPress sites, suggesting a phishing or credential harvesting campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded links are indicative of a spearphishing attachment used to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://wastran.ru/uplcv?utm_term=periyar+university+genuineness+certificate+form+pdf PDF link annotation
- https://mygamedaysports.com/wp-content/plugins/super-forms/uploads/php/files/c5be1f50bdc2ac9cd1659e8ec37b6ad2/nujat.pdfIn PDF document text
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/a075d6a09dc4d6879c06fe498375ed23/xizifewodepulunen.pdfIn PDF document text
- http://daehnfeldt.com/userfiles/file/60045015311.pdfIn PDF document text
- https://bettyloupaints.com/userfiles/files/mekenelo.pdfIn PDF document text
- http://remont-etalon.ru/upload/files/jepufatosekipojiwapobi.pdfIn PDF document text
- https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/nibafuin59oiqpphl95svvqbii/furitudikofa.pdfIn PDF document text
- http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/16097ffd50d461---21296625056.pdfIn PDF document text
- http://www.dgtrans.co.th/login/ckfinder/userfiles/files/32607444720.pdfIn PDF document text
- https://likeevent.it/writable/public/userfiles/file/fagofud.pdfIn PDF document text
- http://www.ambredore.com/wp-content/plugins/formcraft/file-upload/server/content/files/160764bc66686d---91277886569.pdfIn PDF document text
- https://www.dolphinrfid.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9800960b65---tizufaxi.pdfIn PDF document text
- https://www.aserspa.net/wp-content/plugins/super-forms/uploads/php/files/m0p1sttta6kf1hn5prpua3p1to/41932802666.pdfIn PDF document text
- http://antonellascarpittadesigner.it/userfiles/files/rukawaf.pdfIn PDF document text
- http://xinge168.com/uploads/files/20210802005601_893844.pdfIn PDF document text
- https://afayl.com/userfiles/file/37970729823.pdfIn PDF document text
- https://airshow-bg.com/file/78570746786.pdfIn PDF document text
- http://espacioschillout.es/images/admin/file/zefanabofalajiwipafa.pdfIn PDF document text
- https://ascinfratech.com/clientprojects/trading/file/zojamizolitiwedovuf.pdfIn PDF document text
- http://peter-scherer.de/userfiles/file/27285828864.pdfIn PDF document text
- https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f360df18b9---50158423648.pdfIn PDF document text
- http://inlovehuahin.com/file_media/file_image/file/tufinipevibezo.pdfIn PDF document text
- http://kaupa.cz/userfiles/file/walajede.pdfIn PDF document text
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609324fd7e6ad---46271765346.pdfIn PDF document text
- http://studiotecnicoforace.eu/userfiles/files/35596465124.pdfIn PDF document text
- http://irodori.kir.jp/files/file/ziketovizipomojafedubeb.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_off0000da76.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA76 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f288.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF288 | 17716 bytes |
SHA-256: 50fe7d6b74b2e52c8ace8473c265049c0cb1e986a0665a933b8d339631fa51d3 |
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font_02_sfnt_off000120a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120A1 | 11200 bytes |
SHA-256: 655a0b01e27d0ae9199b26a02d6b79980faf0203082ecadc5dfa6c7ff936ba54 |
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