MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The document body, though heavily obfuscated, appears to be a lure related to academic answers, likely to trick users into visiting the malicious URLs.
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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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://nipisod.ru/wix?keyword=single+and+double+displacement+reactions+lab+answers PDF link annotation
- https://bikujezojodu.weebly.com/uploads/1/3/4/5/134587809/a746060a.pdfIn PDF document text
- https://wadodimimilupe.weebly.com/uploads/1/3/0/8/130873890/ea95c8f8.pdfIn PDF document text
- https://cdn.sqhk.co/sujubowip/ecG5hbi/jeveserolukebul.pdfIn PDF document text
- https://cdn.sqhk.co/vakanaju/UQLMM5E/kudawexomaroz.pdfIn PDF document text
- https://liramuxusere.weebly.com/uploads/1/3/4/5/134577046/6bb2726.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4381978/normal_5fe1e8e513ba1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4468253/normal_601ec1e9894d0.pdfIn PDF document text
- http://requiredjokblog.com/minecraft_brewery_guidegu7hl.pdfIn PDF document text
- https://zixijatujomalul.weebly.com/uploads/1/3/5/9/135962278/kemezofet.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4423443/normal_6037c7cb01f10.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4462727/normal_6015e39088232.pdfIn PDF document text
- https://bafovulik.weebly.com/uploads/1/3/1/0/131070506/3a6031874b425f.pdfIn PDF document text
- http://ig-copyrightnotice.com/knowledge_management_system_life_cycle_notes6ozyn.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://3dd85f33-233b-4b3c-8e53-142bc8307eec.filesusr.com/ugd/8df890_664b78fd959344fcab030ee5c5355184.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/34c61af8-fa14-42eb-907f-2a6941f2e82d/semadikakasubi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5962e98b-d736-4c70-9c7c-dedac11a2875/la_ciudad_de_las_bestias_personajes_y_sus_caracteristicas.pdfIn PDF document text
- https://eecb1da5-82b7-48ef-90e5-6a20895c07e7.filesusr.com/ugd/88a84f_198ca9125c4f4f088e9b8b3efb4131cd.pdf?index=trueIn PDF document text
- https://528f6e5c-6927-42ef-b7a5-a8f9c349750c.filesusr.com/ugd/07b979_bbd78f235f16461595d407f9f80be7ec.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/e691f966-bb1f-4241-b807-b4ad34db8a99/22187893748.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_off0000e9ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9FF | 5728 bytes |
SHA-256: a6ec969fc737c7704104e04a3237dd2421a508803b6aa193bd1a2836163aad17 |
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font_01_sfnt_off0000fd73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD73 | 11548 bytes |
SHA-256: 3d7559ec9527332618a8ab94640d58ba958562c76a94a26f89c957b7d5b95c02 |
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