MALICIOUS
284
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs pointing to external PDF files, many hosted on disposable domains, indicating a link farm. One critical heuristic identified a link to known malicious redirector infrastructure. The ClamAV detection and ML classifier further support its malicious nature, likely used for phishing or distributing further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://crophysi.ru/wb?keyword=columbia%20sc%20police%20department%20crime%20reports In PDF document text
- https://cdn-cms.f-static.net/uploads/4367277/normal_601b18d62781c.pdfIn PDF document text
- http://neuroncraft.online/tainted_magic_mod0rgmc.pdfIn PDF document text
- http://lnstagramcentre.net/biology_miller_and_levine_workbookf0nry.pdfIn PDF document text
- http://bas-vorota.ru/lonasawokadodevixurarari0hiap.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4370778/normal_6005636092631.pdfIn PDF document text
- http://storeplus.info/37098642523v1kmd.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485579/normal_600e3d84a3be8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4475864/normal_6012daa40ca29.pdfIn PDF document text
- http://makedctl.site/67106988448p1hml.pdfIn PDF document text
- http://jakor.pro/wuwawmzu5b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4495843/normal_5fd63c966520e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366339/normal_600bfbbf4a99d.pdfIn PDF document text
- http://organize.shop/un_monstruo_viene_a_verme_libro2qot6.pdfIn PDF document text
- http://hookup153.online/54814376738dzfae.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4470526/normal_5fe41fa8d4e28.pdfIn PDF document text
- https://bolifalaloken.weebly.com/uploads/1/3/1/4/131438202/04d74db40a5f5.pdfIn PDF document text
- http://pedalini.club/20217034037m6cke.pdfIn PDF document text
- http://vk-settings-change.online/apple_tv_4k_buyers_guidefknm7.pdfIn PDF document text
- http://tronreserve.online/72366073457ugzcb.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4382618/normal_5fdf9b702de7e.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e717.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE717 | 5264 bytes |
SHA-256: 50ae869b79dcd866fbaafd0cf3cd43da4b35f1fcda214d866b85de057f32ce73 |
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font_01_sfnt_off0000f8d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8D7 | 10364 bytes |
SHA-256: 47b772bc09e830af84c4411e594558a7c163a71fc73a661bba60c0689f2ffa84 |
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