MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document is identified as malicious by multiple heuristics and a machine learning classifier, indicating a high likelihood of malicious intent. It functions as a link farm, presenting numerous external links, one of which is `https://pelibifir.ru/123?utm_term=banner+design+fonts+free`, likely to obscure the ultimate malicious destination. The presence of a 'download button' lure further supports a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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/123?utm_term=banner+design+fonts+free PDF link annotation
- https://cdn.sqhk.co/pabelemusib/ihjgihB/gulobunivenujur.pdfIn PDF document text
- http://tugrull.com/taretilofo3nmbd.pdfIn PDF document text
- https://cdn.sqhk.co/fojevimexu/oifidgg/packing_box_size_calculator.pdfIn PDF document text
- https://suwudaxodorepe.weebly.com/uploads/1/3/4/8/134885248/a3292da91be8c63.pdfIn PDF document text
- https://cdn.sqhk.co/kogewole/l5ODPii/30737333908.pdfIn PDF document text
- https://cdn.sqhk.co/bapisolel/ia3jjst/ap_english_reading_comprehension_practice.pdfIn PDF document text
- http://hookup158.fun/kufanuvokogipivervt4e.pdfIn PDF document text
- https://povemiloten.weebly.com/uploads/1/3/4/6/134608376/8773765.pdfIn PDF document text
- https://cdn.sqhk.co/mugegiduveb/scgfwhd/30304647603.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://0f0532cb-4478-41f9-91a1-cf277c4732ec.filesusr.com/ugd/8acad3_ba46196c9e874fa9a11d3a942d20df76.pdf?index=trueIn PDF document text
- https://efe523a3-d756-4f55-ba91-412f3a718e00.filesusr.com/ugd/236571_f6a15ec7d0f348909d5624ec8d077b2b.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/fasudikek/formato_de_minuta_de_junta_en_word.pdfIn PDF document text
- https://ec451167-49e0-489e-a150-d7dc0ecf9264.filesusr.com/ugd/fe0276_0888a6795ad74d1e910c071ea594970e.pdf?index=trueIn PDF document text
- https://37991ae0-d72b-4ccf-bf90-288dedd591e7.filesusr.com/ugd/041b56_add8c8ff5fba43008fb5115cedde93de.pdf?index=trueIn PDF document text
- https://8ed62699-7d02-4439-b935-4286882ef7d4.filesusr.com/ugd/229b11_6c127bba86bd479e9ffd512909aa609c.pdf?index=trueIn PDF document text
- https://6440a9f6-5e82-4153-977b-4ffe9374ec4a.filesusr.com/ugd/7182f3_371724ce301246b88505765d47d366a9.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/kudowo/autocad_2014_student_version_free.pdfIn PDF document text
- https://f05e0dbb-21cf-40ea-8b71-00b8d6f49a3b.filesusr.com/ugd/b09e1d_3419b8891d824c3aa3ed821278fe685a.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/wopari/reketulixoza.pdfIn PDF document text
- https://45b0b119-5f8c-43e7-b437-4e12d17c1c81.filesusr.com/ugd/3826db_a2c04d88fa9e40f7be8e4dd8340d1b29.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_off0000f609.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF609 | 5092 bytes |
SHA-256: d608c3c54e6a6ce7f54247d9b40bbf2e69ff0eeaea44b378c673dd03be131747 |
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font_01_sfnt_off0001076b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1076B | 11304 bytes |
SHA-256: 318a935ecd7136ec3e443975589adf8e80837db7bc99d0b66c93ceae7f1d9c7a |
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