MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The primary malicious URL identified is https://midufefew.ru/strik?utm_term=clinical+bottom+line+critically+appraised+topic, which is likely used to redirect users to further malicious content or phishing pages.
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://midufefew.ru/strik?utm_term=clinical+bottom+line+critically+appraised+topic PDF link annotation
- https://cdn.sqhk.co/nimuxugemu/vshgOha/12547948787.pdfIn PDF document text
- https://cdn.sqhk.co/lazujanaziri/jz5Nehf/bidufugigazaremimonogudo.pdfIn PDF document text
- https://cdn.sqhk.co/mapetidul/deZgghe/newifejupuletavuzub.pdfIn PDF document text
- http://fupodiruza.66ghz.com/51627164607.pdfIn PDF document text
- http://tobepotalesozaj.22web.org/thomas_aquinas_natural_law.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://8d928d4c-4e32-4dc6-8093-d383c90b3cca.filesusr.com/ugd/b5d49c_fbc2d7c137844dfbb375bc378185defa.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/b53c1f3e-7140-422f-a3db-27132ed99efc/how_to_unlock_baofeng_uv-5r.pdfIn PDF document text
- http://reledolikivep.epizy.com/mivivedakiridojasa.pdfIn PDF document text
- https://37976aa0-f55f-47d3-847a-8d185b13ebf6.filesusr.com/ugd/1d6212_770bc4bf443a4a8a878962f99f628cc4.pdf?index=trueIn PDF document text
- http://wewuletojenana.epizy.com/wulun.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9695ee7b-8544-4196-8013-be211d2e8b48/90923744489.pdfIn PDF document text
- http://fopagozijudiri.epizy.com/laminating_sheets_near_me.pdfIn PDF document text
- https://8f0c9b82-9570-4081-bbb7-5e23a534ea09.filesusr.com/ugd/7008f3_909295a7b99f4a80b85cecd5fb7f9482.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/3bee4538-de03-47ac-bc87-a2a46023216d/xaginekudumad.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9f95b8cc-19a6-4bb1-abb5-b8a89f141cdf/how_to_fix_my_record_player_needle.pdfIn PDF document text
- https://aefb6378-f3ca-470a-b9d2-22936542d087.filesusr.com/ugd/fe129c_7bcd1305555944f2995c0dfbe3a98eeb.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/65fe396a-7ff6-4e8b-9a83-5877e8e12e29/how_do_you_calculate_duct_size.pdfIn PDF document text
- https://0ed7c29b-d5f2-4290-8b47-add6aa38300d.filesusr.com/ugd/32a223_459f18897f7f4f2fa6f5d7520b25f58f.pdf?index=trueIn PDF document text
- https://c779a0a5-5a96-4308-8c37-720837e0bdd2.filesusr.com/ugd/4f1d02_298d2154251a458f85ee79b12ebea046.pdf?index=trueIn PDF document text
- https://26bfc7ce-baa4-43a1-9280-72312523cbd3.filesusr.com/ugd/5af86b_ae9bc08dd94349a98665c17f459562f3.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_off0000e804.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE804 | 5364 bytes |
SHA-256: 34ffc7d5c0cc981b7a85266e0200dcd7f6807f75ff322f42ef17022146e1621d |
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font_01_sfnt_off0000fa27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA27 | 11848 bytes |
SHA-256: 81d2ff967ca5d891d6f07f12810384692d283157c7430d8bb877b3ea25e20a88 |
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