MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan threat. It contains numerous embedded URLs, many pointing to compromised or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of external URI heuristics and link farm indicators reinforces this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://catamma.ru/uplcv?utm_term=card+sme+bank+konek2card+apk PDF link annotation
- http://geometramaurotozzi.it/userfiles/files/70237810450.pdfIn PDF document text
- https://dnm.tw/uploads/files/202109021409044111.pdfIn PDF document text
- https://thefencedocumentary.com/adminfiles/file/muwinusemep.pdfIn PDF document text
- http://cofetariafraguta.ro/UserFiles/file/70929637993.pdfIn PDF document text
- http://ridendo.cz/files/file/nanojowuma.pdfIn PDF document text
- http://www.bufolari.com/public/immagini/file/muleruzivatepa.pdfIn PDF document text
- https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/c91304963c579be9f10542ed3cad6331/xolosoxa.pdfIn PDF document text
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614484fc57b4f---bogat.pdfIn PDF document text
- https://markmont.eu/editor_uploads/system/files/50662166795.pdfIn PDF document text
- http://travelci.ru/ckfinder/userfiles/files/wuzuxugusoxorop.pdfIn PDF document text
- http://mmbc.cz/_data/user_files/file/33112777316.pdfIn PDF document text
- http://aj-freight.com/ckfinder/userfiles/files/8222319263.pdfIn PDF document text
- https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/a2989b3aff875a1f111fd3f4f3ea3086/pinokabosorezo.pdfIn PDF document text
- http://nakamurasangyou.jp/app/webroot/uploads/files/kasivizabitogekiba.pdfIn PDF document text
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16152c9e6b6b35---31969534578.pdfIn PDF document text
- http://orikon.net/Images_upload/files/12235601873.pdfIn PDF document text
- https://sportcity.bg/webroot/img/content/files/76207510845.pdfIn PDF document text
- https://5ky13lu3-1251.com/contents/files/nuguxalirukesusurema.pdfIn PDF document text
- http://bellamy.tw/uploads/files/202109091757452177.pdfIn PDF document text
- https://forexinc.ca/upload/editor/file/27733888356.pdfIn PDF document text
- http://synerfreight.com/syner_upload/images/files/11723901699.pdfIn PDF document text
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1614fa2893b1ce---56684301479.pdfIn PDF document text
- https://soosekszer.hu/upload/files/tugagikobefawewu.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_off0000b93c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB93C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d14e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD14E | 19408 bytes |
SHA-256: 23959a8c93bb03d078579bab55753263ea7b6cf08aa4514a9999036fc2bac931 |
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font_02_sfnt_off000103d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103D0 | 10824 bytes |
SHA-256: 4475a4156149bbaf69accb7b879fc5559f1f3719455a54e930aa4cb19c0489d4 |
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