MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many pointing to disposable hosting, indicating a link farm designed to obscure malicious destinations. The primary malicious URL identified is 'https://pelibifir.ru/strik?utm_term=firehouse+sandwich+calories'. ClamAV and ML classifiers flagged this PDF as malicious, specifically as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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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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://pelibifir.ru/strik?utm_term=firehouse+sandwich+calories PDF link annotation
- https://cdn.sqhk.co/suzeboxiwo/a2DKjfj/tizukonowewex.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4408987/normal_604f9ce651bd7.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4447267/normal_600132e2ec077.pdfIn PDF document text
- https://cdn.sqhk.co/lokijuzim/gjhAidc/xoresemamese.pdfIn PDF document text
- https://cdn.sqhk.co/xixofivib/3PughBX/83515157245.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4490001/normal_60664e5a93c5e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4419206/normal_602d8e1f98453.pdfIn PDF document text
- https://cdn.sqhk.co/busosuwik/ajgEidW/28876410480.pdfIn PDF document text
- http://fasumidivojasuj.iblogger.org/jofukewetapot.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/b582214d-e16f-4ba4-95e3-30862fa834b7/how_to_clean_britax_marathon_clicktight.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5d96d6bf-160b-45da-b9b3-a3371d696335/61184978644.pdfIn PDF document text
- https://8271b8e8-1520-4b18-8785-2fafc8cd33e6.filesusr.com/ugd/efc97f_3e3b18e65a564062adbfcca993795fb9.pdf?index=trueIn PDF document text
- https://cfc603e6-7cd4-4c42-812b-9722deb80ae4.filesusr.com/ugd/0e9fc2_35893a05153144178a9c6a73d7ebe03d.pdf?index=trueIn PDF document text
- https://0eaabcdb-938a-45a6-85a3-1a7d796bbcdd.filesusr.com/ugd/8d6d25_ad79181046bf4792bf9d2c6ffe8be766.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/c3eb3706-bc4d-43ad-b01d-e75d9e09046b/what_year_did_a_dolls_house_take_place.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/05a07ea3-6e3a-4426-a3d2-1c84b05ffdcc/83026322825.pdfIn PDF document text
- https://fab88ded-2f12-46c9-b6ec-f290036286cc.filesusr.com/ugd/cce69c_8e9e35322933416aa102ca5bdacc56f9.pdf?index=trueIn PDF document text
- https://5e0c4d4d-41f9-428c-9564-b93e7cff6769.filesusr.com/ugd/510691_e428895f68b04aa2b1ca56440b0965ea.pdf?index=trueIn PDF document text
- https://c809e8a6-5bdf-489d-8d8c-df4e4638a115.filesusr.com/ugd/45a296_1e54d42124cb44b68847f0076a063348.pdf?index=trueIn PDF document text
- https://6fc76513-a17a-4053-940d-bef108f5ea85.filesusr.com/ugd/3a5ef0_a9e1fab9251c4752adb6ad7863aa7c88.pdf?index=trueIn PDF document text
- https://1f9cfe0c-d655-4514-b58a-75380282e405.filesusr.com/ugd/d31784_8f536c363c544ddea4d4e83440756dad.pdf?index=trueIn PDF document text
- http://nonogopikizezed.rf.gd/pdf_splitter_and_merger_portable.pdfIn PDF document text
- https://ec679cc6-872a-45a8-b2fd-b1bc8f6ddb77.filesusr.com/ugd/d1d005_3e797393eaba44dabf859706a9310e47.pdf?index=trueIn PDF document text
- https://df9240ce-57b4-430e-a582-521170ca5232.filesusr.com/ugd/10b03a_fbda45faaf884876ab7488e8a4bf0937.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_off0001153f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1153F | 5076 bytes |
SHA-256: 30dceed21fab3be9a8f8a9fa29a97442e757501dfc6ca6ac75d3dec46123d99d |
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font_01_sfnt_off0001268e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1268E | 11460 bytes |
SHA-256: b07f11ec550d0400c6b50a04886ccf6448c3b341dbcff2dc495cf52480e1a65f |
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