MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many of which point to potentially malicious domains, as indicated by the PDF_SEO_LINK_FARM heuristic. One prominent URL, 'https://trafffe.ru/strik?utm_term=introduction+to+animal+science+5th+edition+pdf', is presented as a search result, suggesting a lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://trafffe.ru/strik?utm_term=introduction+to+animal+science+5th+edition+pdf
- https://cdn-cms.f-static.net/uploads/4489599/normal_5fadae1537a25.pdf
- https://moxoviwepikiwu.weebly.com/uploads/1/3/2/8/132814726/nilomaridemak.pdf
- https://vebifejelib.weebly.com/uploads/1/3/0/7/130775119/vemek.pdf
- https://xukaxikerebata.weebly.com/uploads/1/3/4/0/134042698/vofazemosorarad_zekamuwunibes.pdf
- https://cdn-cms.f-static.net/uploads/4390095/normal_5f8df7a367324.pdf
- https://cdn-cms.f-static.net/uploads/4383128/normal_5f9308997bcac.pdf
- https://cdn-cms.f-static.net/uploads/4366055/normal_5f972d59b4fee.pdf
- https://cdn-cms.f-static.net/uploads/4413368/normal_5fb32d7637159.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/tarajix/tafebububexerokilafetotu.pdf
- https://uploads.strikinglycdn.com/files/f368ba4d-b2da-401e-90f7-93a548df8ce9/family_tree_maker_companion_guide_2017.pdf
- https://s3.amazonaws.com/ganubifirigevi/28756232205.pdf
- https://s3.amazonaws.com/jixerubowi/12458414016.pdf
- https://s3.amazonaws.com/gurowozenupifi/short_brown_wig_with_fringe.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_off0000bd8e.bin96c966d3c9bcf4367ea82eff7df5668e4deb7c2c6470b59e3adb72625d08c8ac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD8E | 5456 bytes |
font_01_sfnt_off0000cff4.bin748f2bc5440fcfd8b5917587e4bd0f10299ff298267c5ee57e69d48854c3ecf0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFF4 | 10588 bytes |
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