MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of external links, many pointing to disposable domains and Weebly-hosted PDFs, indicating a link farm or SEO manipulation tactic. ClamAV and ML classifiers identified the file as malicious, specifically a phishing trojan. The embedded URLs likely serve to distribute further malicious content or lead users to phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://leonvi.ru/wb?keyword=5%20steps%20to%20risk%20assessment%20hse PDF link annotation
- https://cdn-cms.f-static.net/uploads/4420476/normal_6016caaaf15df.pdfIn PDF document text
- https://vasuxuduka.weebly.com/uploads/1/3/4/3/134322555/fujituva-suvepebo-jebekegodemi.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4452398/normal_6029ae725c7c3.pdfIn PDF document text
- https://libakitaxejadeg.weebly.com/uploads/1/3/4/0/134096258/1cabb08e224097.pdfIn PDF document text
- https://lemuvizavo.weebly.com/uploads/1/3/2/6/132682731/e8c3e7f3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4499021/normal_601346bfdc159.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4389107/normal_603a8a666faea.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4415740/normal_5ff13f464ab6e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4444095/normal_5ffd7da46032e.pdfIn PDF document text
- https://ranazujip.weebly.com/uploads/1/3/5/3/135398887/nidun_xosuvazapabumus.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4406501/normal_6008e22e8b68f.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4426679/normal_5ff4714b2f60f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4490116/normal_602650f884e2e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4474998/normal_5fee7d7d99ea6.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4479226/normal_5ffabd2722989.pdfIn PDF document text
- https://zubikuzo.weebly.com/uploads/1/3/1/4/131453486/dabajikopi-zifimam-mabave.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403948/normal_60426cb694217.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465012/normal_6068da6dc42a7.pdfIn PDF document text
- https://rikusinifo.weebly.com/uploads/1/3/4/0/134017093/b4c20f59.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4482872/normal_603f64c35ea83.pdfIn PDF document text
- https://biwasigefo.weebly.com/uploads/1/3/1/3/131398444/3452766.pdfIn PDF document text
- https://daburupolajiwu.weebly.com/uploads/1/3/4/6/134634816/d84cb257f7d.pdfIn PDF document text
- https://sepanafawo.weebly.com/uploads/1/3/4/3/134316973/5796185.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4488332/normal_5ff7c478e3226.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000eebc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEBC | 4908 bytes |
SHA-256: 4f7d12ec0e35cdd86c00e3f75093debd9e83b765a0dd2894daad2da15e5bf37b |
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font_01_sfnt_off0000ff32.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF32 | 10844 bytes |
SHA-256: 3243c7cb44305545abb635681afea289853ca51e3f7e24650e88a0992d12734e |
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font_02_sfnt_off00012441.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12441 | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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