MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating it's likely a phishing or trojan delivery mechanism. The PDF contains a large number of external links, suggesting it functions as a link farm. The primary URL, 'https://oniceh.ru/pbw?utm_term=digestive+system+physiology+mcq+pdf', and the linked PDF 'https://fijozemubo.weebly.com/uploads/1/3/4/2/134234573/2339699.pdf' are key indicators of this malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 5
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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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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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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://oniceh.ru/pbw?utm_term=digestive+system+physiology+mcq+pdf
- https://fijozemubo.weebly.com/uploads/1/3/4/2/134234573/2339699.pdf
- https://cdn-cms.f-static.net/uploads/4378623/normal_6018a0ac943c1.pdf
- https://cdn-cms.f-static.net/uploads/4459055/normal_604014ef72b3d.pdf
- https://static.s123-cdn-static.com/uploads/4461766/normal_5fe0fe95826c5.pdf
- https://static.s123-cdn-static.com/uploads/4457298/normal_5fe25c7de19b7.pdf
- https://cdn-cms.f-static.net/uploads/4420761/normal_60299012ee8eb.pdf
- https://luzodogapop.weebly.com/uploads/1/3/4/2/134265842/govav.pdf
- https://cdn-cms.f-static.net/uploads/4387807/normal_601d764238e4f.pdf
- https://cdn-cms.f-static.net/uploads/4486201/normal_606d11d7befed.pdf
- https://cdn-cms.f-static.net/uploads/4410976/normal_60540993eb8aa.pdf
- https://static.s123-cdn-static.com/uploads/4485434/normal_5fe2add3117ec.pdf
- https://vegirizekor.weebly.com/uploads/1/3/1/4/131407876/bokubuga_filivob_bufaf_jamajefa.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://povelin.pbworks.com/w/file/fetch/144421392/lixesirabusuzanasufosibaz.pdf
- https://uploads.strikinglycdn.com/files/c8a8b225-69bb-4069-baf8-f075f3c4415e/52126188302.pdf
- https://uploads.strikinglycdn.com/files/1a5ed3fa-93c1-4735-adbf-dd7fa38bec17/12v_plug_in_heater_for_side_by_side.pdf
- http://zekodunu.pbworks.com/w/file/fetch/144584664/65135561943.pdf
- https://uploads.strikinglycdn.com/files/fff92df2-b772-4635-af18-f17b00c82719/wimajugege.pdf
- http://gonumutat.pbworks.com/w/file/fetch/144522189/subway_surf_apk_hile_indir_2020_apk_day.pdf
- https://uploads.strikinglycdn.com/files/e969f5b2-b4f8-448b-9960-e57f786acc47/75206662169.pdf
- https://uploads.strikinglycdn.com/files/9cb1461e-1043-4f4f-943a-eeb499c8ed9d/relative_clause_activity_year_4.pdf
- https://uploads.strikinglycdn.com/files/e9870951-9698-48bb-bd1e-b230b18e4435/buzadetukegejikewada.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f28f.binb6affbd9f125a9ed09013faf8247ca90846400d64909a5bea4f849346397437a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF28F | 5552 bytes |
font_01_sfnt_off00010564.bin74bbb9acc1e19a51979b9abd9ca0ce0a6537ce9c876cb77f066fcdd06d036c8d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10564 | 10612 bytes |
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