MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It contains a large number of embedded URLs, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a non-clustered link farm on disposable hosting, further supporting the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://infrive.ru/uplcv?utm_term=computer+graphics+and+multimedia+mcq+with+answers PDF link annotation
- http://basyapiemlak.com/yukleme_klasoru/userfiles/file/55567310848.pdfIn PDF document text
- https://acgroupenterprise.com/userfiles/file/faxes.pdfIn PDF document text
- https://maggies-handmade.com/UserFiles/files/gokewe.pdfIn PDF document text
- https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/52339b362459d05dfff77346b373fc1a/wefadekiti.pdfIn PDF document text
- http://albino-pitti.com/pub_img/file/rifulito.pdfIn PDF document text
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1607603ed69a13---38815065807.pdfIn PDF document text
- https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/09rojvaq65ma65ag9d8h92q5m2/sajeto.pdfIn PDF document text
- http://extracam.es/app/webroot/arxius/file/62655661064.pdfIn PDF document text
- http://vodnik48.ru/content/file/beguzibanil.pdfIn PDF document text
- https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/ba49a1d70aa531faec2dcc79c14a76f9/sugunen.pdfIn PDF document text
- http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cbaf99118d---94799738009.pdfIn PDF document text
- https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/ee3cf48449c08ba00a7201cf956671f6/2813232933.pdfIn PDF document text
- https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/9vd6v93f2jmi5m76d86khh1v63/55936762091.pdfIn PDF document text
- http://diversecityuk.com/userfiles/file/dibakafifewe.pdfIn PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/678d5d21284c22d1329e2d61d9c03056/13095569143.pdfIn PDF document text
- http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/f6seb6c36kukam63gijing5p95/9995615215.pdfIn PDF document text
- http://fbchitchcock.org/clients/8/8b/8bdff38a390027835eb24981312b950c/File/gofumozumedowa.pdfIn PDF document text
- http://wmehoa.org/clients/d/df/dff1b85474dadb967ea0c40f6d5e37f8/File/kikimobobazutevefabavil.pdfIn PDF document text
- http://akinmedikal.com/uploads/file/12055224644.pdfIn PDF document text
- https://walkandsmile.com/userfiles/file/13561608365.pdfIn PDF document text
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/4ab053790695e3bcce84548664beb011/73877466946.pdfIn PDF document text
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608a0fb219e36---vawavefuvuv.pdfIn PDF document text
- https://cupanghitam.com/contents//files/34596683415.pdfIn PDF document text
- https://www.emma-solutions.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a89fe6bf451---5373738918.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_off0000e58e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE58E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fda0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDA0 | 17372 bytes |
SHA-256: d7e9c76fb2d7365eccac4b2e72b85017b17eb6fe61d3479e05ba0872d7f56ad1 |
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font_02_sfnt_off00012b05.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B05 | 11324 bytes |
SHA-256: 7a35895c398851f46973aad8a37e242ae79ea7cf68d0098bc80e254f1415d97a |
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