MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file exhibits characteristics of a link farm designed to deceive users into downloading content. It contains numerous external links, many pointing to disposable hosting, and includes a call-to-action phrase suggesting a download. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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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://kuzutuzo.ru/award?keyword=antenna+theory+and+design+stutzman+pdf+download PDF link annotation
- https://static.s123-cdn-static.com/uploads/4485015/normal_6006bbee39d6e.pdfIn PDF document text
- https://cdn.sqhk.co/burexewejam/d2IhbBv/bapadeforas.pdfIn PDF document text
- https://cdn.sqhk.co/suwojixuwebi/JhcDsjd/lewekudifamulesefutik.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4406775/normal_5fc7ebe82673a.pdfIn PDF document text
- https://cdn.sqhk.co/fegukajebaj/IFYjeC7/destiny_2_companion_app_classified.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://4328a374-8b5c-4134-9cef-e132ca5fc89d.filesusr.com/ugd/6732b1_9729d49ef3754bda94dd1f8dd5332fa2.pdf?index=trueIn PDF document text
- https://60f6da8c-824c-4163-aae9-6195f2ac7ed4.filesusr.com/ugd/7f16bd_917a943422da4f0d838c3265835a0357.pdf?index=trueIn PDF document text
- https://ecf1b359-4982-44d9-836f-7e6f5fec4aa1.filesusr.com/ugd/da15c8_9e98c8b8eb584f6798724272b2836a7e.pdf?index=trueIn PDF document text
- https://b70645e9-42d7-44c6-80f2-f165c8819e8d.filesusr.com/ugd/3f1130_34df15bf2e0e47fd99da7f294ea7b58a.pdf?index=trueIn PDF document text
- https://b304dada-1952-41b2-af44-d16a3232bb3f.filesusr.com/ugd/c19c34_145b5166798c488a9d668e5814ab3d47.pdf?index=trueIn PDF document text
- https://31c8a3d4-0132-49f1-a04f-09c79d03e01f.filesusr.com/ugd/a4da84_c8b7f03518a5431eb44262a90f71b143.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/vibasujefir/rikaxokosak.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a8655ddc-2fe0-4555-9d30-c74255033e49/shark_navigator_dlx_nv360_reviews.pdfIn PDF document text
- https://989eff4c-946f-4221-9817-1a8d60f2082d.filesusr.com/ugd/7edf14_0aa97067b76c49ff85979563dba3f9b0.pdf?index=trueIn PDF document text
- https://e8c82854-2a0b-4c0f-82de-bac600ce06e6.filesusr.com/ugd/d017d5_7b3247c102f04ffc9eb430a2bed2ced7.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/gopifu/how_to_get_maximum_heat_from_a_wood_burning_stove.pdfIn PDF document text
- https://e57d8632-f742-4524-ada6-9cdf759d9f13.filesusr.com/ugd/b0cb2d_0ce319b7183f4d5792e9aaf5dbe5da9a.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/3111b6ed-6ca0-4775-b5e7-9e7e586ce6ec/activities_for_18-24_months.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/22f567fb-3e21-4f37-a026-0e0dd8aa0ded/cisco_switch_commands_vlan_ip_address.pdfIn 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_off0001004e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1004E | 5688 bytes |
SHA-256: 667223c81bb4e164f5ab29f29e4f5661014ef9a828ac5ad427b9f5862608fb73 |
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font_01_sfnt_off000113ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113AB | 10924 bytes |
SHA-256: 1a981cbf48d9877e1e2f21f882346817348762896b81a59aff7bd5b7894fd07f |
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