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 0.9998
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://xajibur.ru/strik?utm_term=what+is+the+formula+for+area+of+a+square+and+rectangle PDF link annotation
- https://static.s123-cdn-static.com/uploads/4417319/normal_5fc5b8c2d7faa.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4470412/normal_5fdc6d716e279.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4480594/normal_6047dd110d925.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365601/normal_602baaddefc0a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4390643/normal_605c35cbf0878.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393193/normal_5fd73566a3228.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403259/normal_604ba23744b82.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365591/normal_606e875758377.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4460449/normal_60590bff7b71e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413702/normal_6036f64029fcb.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4410416/normal_5ff0395a591e9.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://662517ce-f374-4037-aebd-99b1dbe00103.filesusr.com/ugd/0c4177_47549127b848436fa935c2e240dea3a4.pdf?index=trueIn PDF document text
- https://e6f9d1db-9bad-45ba-a188-0e8e378e8087.filesusr.com/ugd/99b222_7f54fb587dea4471b32aa7d6331d5e4b.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/4e31dce5-3845-40bb-a6bb-8c1c770a2d4d/vazosotakisolox.pdfIn PDF document text
- https://caf0f927-206f-4b4e-aa34-0dd3da53679b.filesusr.com/ugd/83d902_5c8133be8aaf410fa11ebd0f4bd6bcc1.pdf?index=trueIn PDF document text
- https://95049c82-e412-4913-a0b0-e03e83d5170a.filesusr.com/ugd/127d6e_709176fcaa96437189c970871dd34c2c.pdf?index=trueIn PDF document text
- https://9eb5ee95-128e-4115-bcd6-d8db8525ce49.filesusr.com/ugd/9904c2_c16aa7cb2f4f4db381a5e744ed524754.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/c399fb7c-bfd3-4e46-8b7c-1868cb140491/23128186535.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7a7265c9-2c7a-49c3-8b87-fbfedc1a89cd/25227402263.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c810414e-d70c-4782-8d3f-d15e96726392/cuales_son_las_reglas_de_acentuacion_en_espaol.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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e804.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE804 | 5456 bytes |
SHA-256: 6f6e1d4f204651776fe6d9701da457fe0635973247ebbb5281cde6981989b1da |
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font_01_sfnt_off0000fa6b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA6B | 11720 bytes |
SHA-256: 5ae5cab67b0bcccd3680e47d98c4bd28f250470b57b8b0a91c7b65ce5c2e3bde |
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font_02_sfnt_off00012119.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12119 | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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