MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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://vilenefex.ru/wix?keyword=david+tanaka+md+denver PDF link annotation
- https://cdn.sqhk.co/rukugewul/jyqij4Z/98462656320.pdfIn PDF document text
- https://cdn.sqhk.co/solijisivono/kT4icFj/35272210358.pdfIn PDF document text
- https://cdn.sqhk.co/bapisolel/furUD3s/wildlife_park_wild_creatures_mod_apk.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454172/normal_60418e9d48b39.pdfIn PDF document text
- https://cdn.sqhk.co/senosekagoko/idghMij/65193231818.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4498324/normal_603e286eab51b.pdfIn PDF document text
- https://cdn.sqhk.co/datawafag/haIEvgf/teduzutusutirogavaf.pdfIn PDF document text
- https://cdn.sqhk.co/pefisemise/jaAjbZc/36169044028.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4499958/normal_6030404c2cf98.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4445116/normal_60281e4c3ac92.pdfIn PDF document text
- https://cdn.sqhk.co/radojiga/fiaiaoM/fevaferisuxazukuzejidizo.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://2863666b-9d79-467d-9aad-9eeb6dafbdf2.filesusr.com/ugd/6ee3eb_fc3ec17a7038487981c8ff520620e3f1.pdf?index=trueIn PDF document text
- https://510adc33-753b-44c0-977e-8d34da8fcdd4.filesusr.com/ugd/5f4192_811aa68ddf3844388fbad7e0aea1db2c.pdf?index=trueIn PDF document text
- https://d6d3a1c5-32ce-46e9-ae92-c5b8d84d65d9.filesusr.com/ugd/a3b54b_fea7192641fb411f81af62be1fb1c5f0.pdf?index=trueIn PDF document text
- https://3fb740b9-71d8-4183-8edb-de11b68c0a29.filesusr.com/ugd/1fbf8b_86edc83332dd460da2f63c4beab91f1e.pdf?index=trueIn PDF document text
- https://091a8774-b5bd-4fb7-8799-8d1ca0ca44ad.filesusr.com/ugd/8716ab_f57dd7110ed04938aa0d593982f367ba.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/tutasujal/58778274850.pdfIn PDF document text
- https://s3.amazonaws.com/gowupuzokowuxes/vuwakolinuvufegeka.pdfIn PDF document text
- https://s3.amazonaws.com/jokotaziweluge/90780364475.pdfIn PDF document text
- https://1cf095b7-1d29-4152-b82c-7733cf7ba0c7.filesusr.com/ugd/c1de29_0ded8c55eb3c430fbb425ced38649473.pdf?index=trueIn PDF document text
- https://041aa876-b65b-432c-96c0-58c8b295a4e4.filesusr.com/ugd/90d19e_02d2b90030dd4a15a186cb20b17a67de.pdf?index=trueIn PDF document text
- https://3b1a0cff-dc54-4917-88c1-cdf904a8db56.filesusr.com/ugd/60aab8_9a96099a078e48f4afcec292b0e23aa7.pdf?index=trueIn PDF document text
- https://71a5d838-4e22-4830-8da1-7955ec3365f5.filesusr.com/ugd/f2f43e_6e56879d2f1749fcbc8501ca1b5a8ee7.pdf?index=trueIn PDF document text
- https://178c1879-e916-404b-9861-a2431bd0f83a.filesusr.com/ugd/1aace6_923daafc27fa47219ab040e6c4fcf395.pdf?index=trueIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dbf4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBF4 | 4884 bytes |
SHA-256: b3cc14b7effc143dacdbdbaa3383c8b8f716cc90b79afe4e5a952bc9ddc434c4 |
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font_01_sfnt_off0000ec8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC8A | 10616 bytes |
SHA-256: efca4efc6bda03155e43ad4ec1fbecb4b41f1dd3f37e39c34bd788c7f51c5965 |
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