MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document contains a large number of embedded links, many of which point to disposable hosting or known malicious redirectors. The primary malicious link identified is https://yafferge.ru/strik, which is likely used to redirect users to phishing or malware download sites. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://yafferge.ru/strik?utm_term=what+are+some+good+young+adults+books+to+read In PDF document text
- https://tapuroxoj.weebly.com/uploads/1/3/4/5/134599682/b98b208.pdfIn PDF document text
- https://gubetixe.weebly.com/uploads/1/3/4/3/134314982/1500486.pdfIn PDF document text
- https://cdn.sqhk.co/molavagew/g4igib5/72876810670.pdfIn PDF document text
- https://cdn.sqhk.co/sirepajaku/jgihege/gain_followers_instagram_app_free.pdfIn PDF document text
- https://rezezeveg.weebly.com/uploads/1/3/1/8/131871466/retudizebo.pdfIn PDF document text
- http://websecurer.tech/90672719578dobk5.pdfIn PDF document text
- https://romenugerod.weebly.com/uploads/1/3/5/3/135317494/1489847.pdfIn PDF document text
- http://llloooodddd.space/tedolagikigumagakemabimuzmt3g.pdfIn PDF document text
- http://pannochki-art.com/how_to_take_a_self_portrait_photographylljzm.pdfIn PDF document text
- http://cmbmarketing.agency/podavekalabobuu1dnk.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/a70f053e-b8b9-4d48-ac0d-c9c18db1f8fb/how_to_turn_off_amber_alerts_on_consumer_cellular_flip_phone.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2ff2bb5b-f51b-4163-8372-f9d63f20ec93/emperor_clock_movement_troubleshooting.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9ced059e-9dc2-48a8-8db6-0b083ec72365/soundpeats_bluetooth_headphones_not_connecting.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7a46e22d-09fb-4bf4-86a8-d76a5e4feff9/68136846798.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/126c71eb-70e0-47a4-bc9d-e988a26429bc/meade_etx_80_autostar_manual.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/084a1e99-099e-41b8-b286-2614a373b5a3/zedeboralekigurotupe.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d7774d21-aaaf-4d7c-9485-7e035beab353/whirlpool_microwave_wmh31017as_light_bulb.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dbc2b76d-09c2-406c-9ea4-4d4fbd6106c5/what_is_22_carat_gold_rate_today_in_surat.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_off0000fadd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFADD | 5556 bytes |
SHA-256: 2eb40bc0fb44dcd8ac1f7f751eb41a1ce2773e38a4e4216a285c5fa325492f14 |
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font_01_sfnt_off00010da9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DA9 | 10932 bytes |
SHA-256: 33c667d459fadef58957cd96469196bec0d0993754c56f7bdabb627e6c4ca3af |
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