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 0.9997
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://golowaki.ru/award?keyword=structure+d+un+algorithme+informatique+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4422368/normal_603f06d6e36ed.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368489/normal_6036c03c06f0d.pdfIn PDF document text
- http://mojenisijita.mywebcommunity.org/valobodukupuromum.pdfIn PDF document text
- http://sigisuzuk.getenjoyment.net/what_does_fuel_system_too_lean_bank_1_mean.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4454040/normal_5ff7602d17223.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485810/normal_600add1c5dcd2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368479/normal_600ece9bb57f9.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://logiweliziweje.onlinewebshop.net/2015_washington_redskins_cheerleaders_roster.pdfIn PDF document text
- https://443275ec-395d-4f86-84c9-2ed7a250e117.filesusr.com/ugd/7d471d_56ca86d6b49f44059a400c3259ac1560.pdf?index=trueIn PDF document text
- https://ecf1b359-4982-44d9-836f-7e6f5fec4aa1.filesusr.com/ugd/da15c8_fb64f3089aca489ea66d7e6413da65c5.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/915deaae-1125-4d2d-b0ba-989e0b92adcb/85768883084.pdfIn PDF document text
- https://0c7ecde5-8d52-4b6d-bf00-bcb9beb5fd3c.filesusr.com/ugd/b6f5a5_834fbc3659b04210926ea8bdfb86909f.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/2bd1afa0-7ffa-491c-95cb-e47c1bf062da/the_tale_of_peter_rabbit_chapter_1.pdfIn PDF document text
- https://d2ea4bfc-f92a-4379-acf2-d9b69981ddb7.filesusr.com/ugd/739437_aa0525577fe54eab8cd783059c279992.pdf?index=trueIn PDF document text
- https://4f0754e2-f0c4-47db-826b-83042027646c.filesusr.com/ugd/7a11b0_34ac21e312084e79be08f2ed53ada0b9.pdf?index=trueIn PDF document text
- http://razikonuwivomo.epizy.com/academically_adrift_review.pdfIn PDF document text
- http://siwodonodefofo.epizy.com/fujegef.pdfIn PDF document text
- https://77bc4ea4-de20-41c0-a463-a5315db628d9.filesusr.com/ugd/2c69e3_afcac53fbb774fe6be63c9f0dc8ce198.pdf?index=trueIn PDF document text
- https://9f5bcc56-a059-4f00-ae85-604acd6a3d2d.filesusr.com/ugd/ac9354_0464f036ad6a4cfe8cbdba3411ad655a.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/0e84cc1a-70b8-4a75-b8fa-8fbd82d381dc/75115877920.pdfIn PDF document text
- https://e437b920-fa79-41d5-b67c-0ca059f4e77a.filesusr.com/ugd/d97c10_f240184d9fcb4556bde5c386c6b0231e.pdf?index=trueIn PDF document text
- https://9d3edb37-11ce-4d87-b861-4f8d850d55a0.filesusr.com/ugd/0d2aa0_c38a5b7dabd44fd68b69053d4af3666d.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_off0000f62b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF62B | 5620 bytes |
SHA-256: d55a45d4001ed99a33dfa0dfcf9a04e0b6768efe699ad55f93842cdb7903ece7 |
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font_01_sfnt_off00010912.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10912 | 13144 bytes |
SHA-256: 2819eaa84f8c6082fbec7bf894fbe110bfc04a17e70594e45deef7d704fd3ead |
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