MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, many pointing to disposable hosting, and one specific URL related to downloading software. This indicates a likely phishing or malware distribution attempt, leveraging a link farm to obscure the ultimate destination. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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://zajinet.ru/strik?utm_term=how+to+download+accu+chek+compact+plus PDF link annotation
- https://cdn.sqhk.co/vesagivara/yibqqii/alto_s_odyssey_apk.pdfIn PDF document text
- https://s3.amazonaws.com/jevelel/13262270629.pdfIn PDF document text
- https://s3.amazonaws.com/jovekus/fema_is-_100._c_test_answers.pdfIn PDF document text
- https://cdn.sqhk.co/jixuvepabu/DxjahjG/70735646553.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476437/normal_60501e15a747b.pdfIn PDF document text
- https://cdn.sqhk.co/fekolisuzub/whiS6KI/28747475318.pdfIn PDF document text
- https://cdn.sqhk.co/woberimi/s9gcgjK/8507755522.pdfIn PDF document text
- https://cdn.sqhk.co/xumirikebixo/hjaOgfm/10130280246.pdfIn PDF document text
- https://cdn.sqhk.co/gujowaxexag/igcHxgp/cyclebar_midtown_raleigh.pdfIn PDF document text
- https://s3.amazonaws.com/gelawiweza/superficial_vein_thrombosis_treatment_guidelines_accp.pdfIn PDF document text
- https://cdn.sqhk.co/fubafonu/jdjcIjd/4408204559.pdfIn PDF document text
- https://cdn.sqhk.co/befulirawid/icjdsn5/68424190771.pdfIn PDF document text
- https://s3.amazonaws.com/gajakelegeza/what_iced_coffee_should_i_get_at_dunkin_donuts.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384832/normal_6028667749756.pdfIn PDF document text
- https://cdn.sqhk.co/farafakilof/ja2WKw1/mexan.pdfIn PDF document text
- https://cdn.sqhk.co/degawatoze/C1XjaIG/logonuvijukifazekujajat.pdfIn PDF document text
- https://cdn.sqhk.co/lisesemafo/heghpwS/89855755332.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481157/normal_605bfff06c1b8.pdfIn PDF document text
- https://cdn.sqhk.co/zidexamuwela/cghUmIu/36106447762.pdfIn PDF document text
- https://s3.amazonaws.com/wutezigojuxi/linear_programing_word_problems_worksheet.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4459941/normal_5fee7e2d5d41e.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://dbba0f06-1911-40f0-8c80-a2638c7f81cc.filesusr.com/ugd/b13fd1_333a0d2861c24034be176c1556595f59.pdf?index=trueIn PDF document text
- https://44bb6ee8-a0fe-4f72-890f-0f0a2fec05cf.filesusr.com/ugd/b65acf_4d3d952698424837aab2525c9d7aae68.pdf?index=trueIn PDF document text
- https://351e5f87-f9e5-4015-92cd-d601692b9ec3.filesusr.com/ugd/a0d0d3_f71592e0949b4e04a84af43a5f2e3d3d.pdf?index=trueIn PDF document text
- https://7043ee2c-bc2d-4d46-b82c-b0075177c1aa.filesusr.com/ugd/f862b5_08a95ed916eb4a0e87ff9a341a8e125e.pdf?index=trueIn PDF document text
- https://734e8db3-b9db-457c-abaa-08c06218e7ae.filesusr.com/ugd/f6bb82_aafe68fc117a42eda7a08af7b79500eb.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_off000108be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108BE | 5336 bytes |
SHA-256: bde995c71dd33eea7fa2a45903c56dca20294590aae5213b9dc49d73709a3119 |
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font_01_sfnt_off00011acc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11ACC | 11300 bytes |
SHA-256: 3cdcef7e6f2738bb06d0e778d7321acf29d8ca1576ef08c3e9f8981dea6eac86 |
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