MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, a common tactic for link farms and phishing campaigns. One of the linked URLs, https://cctraff.ru/123, is identified as malicious redirector infrastructure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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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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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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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://cctraff.ru/123?utm_term=algebra+functions+and+data+analysis+textbook+answers
- https://cdn-cms.f-static.net/uploads/4368740/normal_5f97e06a16729.pdf
- https://cdn-cms.f-static.net/uploads/4380859/normal_5f8bee8979f98.pdf
- https://cdn-cms.f-static.net/uploads/4413456/normal_5fa984636d11d.pdf
- https://jalewigevat.weebly.com/uploads/1/3/2/6/132681207/pogovuraralewazinavu.pdf
- https://cdn-cms.f-static.net/uploads/4476148/normal_5fb8b0967a8a2.pdf
- https://cdn-cms.f-static.net/uploads/4370302/normal_5fad4caabc1af.pdf
- https://cdn-cms.f-static.net/uploads/4367004/normal_5fa349af11230.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/zesotat/21988512623.pdf
- https://s3.amazonaws.com/roware/wagukojenid.pdf
- https://s3.amazonaws.com/jefazaxal/information_based_support_system.pdf
- https://s3.amazonaws.com/sorapobuk/apowersoft_video_converter_studio_cracked.pdf
- https://s3.amazonaws.com/lorifumofelu/tesow.pdf
- https://s3.amazonaws.com/gowebabuxogiro/zikazogupawib.pdf
- https://s3.amazonaws.com/bipovoromoj/jigonaridusulopuvo.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_off0000cb8d.bin7547c8c4df21e4d76a9fd5354bf470a899c4178aeed3d48f68d91aea60e815cf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB8D | 5644 bytes |
font_01_sfnt_off0000def9.binebd4971eed23a2f7860f654465924e12d0b2c059dfe768d375d20f19c4c4b9d4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEF9 | 10524 bytes |
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