MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file is identified as malicious by ClamAV and an ML classifier, with a heuristic indicating an external URI. The embedded URL points to a site that appears to be a lure for downloading a calculus book PDF, likely a phishing or malware distribution attempt. No scripts were extracted, but the presence of an external URI and the ClamAV detection strongly suggest a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 4
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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://zajinet.ru/123?utm_term=calculus+demystified+pdf+free
- https://static.s123-cdn-static.com/uploads/4365545/normal_5fce24f4d4a71.pdf
- https://static.s123-cdn-static.com/uploads/4450256/normal_5fdeaf032baf9.pdf
- http://blu-ital.space/how_much_is_michael_douglas_worthhx71q.pdf
- https://zetitazafoxiz.weebly.com/uploads/1/3/4/0/134040412/dopepebugu.pdf
- https://lomofoxagut.weebly.com/uploads/1/3/4/5/134524577/4206599.pdf
- http://garant-ritual.online/93100621764d8s79.pdf
- http://ragananutirud.iblogger.org/borevovedakeduwonim.pdf
- https://cdn-cms.f-static.net/uploads/4419451/normal_6011be089f88c.pdf
- http://rimawebonozavi.iblogger.org/72582551606.pdf
- http://erogan-columbia.site/14640753389b7u8x.pdf
- http://abreudesigns.com/10465068632wxb5s.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://nitupodok.epizy.com/wizejif.pdf
- https://edb7bb8d-792a-4213-93ec-7f573d37cc74.filesusr.com/ugd/bfd504_4b5638ddef3b43c0a1052671b32380d4.pdf?index=true
- https://uploads.strikinglycdn.com/files/e6399aef-ea0a-459c-bd9b-6ec4f06805c7/jabifikan.pdf
- https://78a3f932-2eca-4366-91b9-d52a2f3c5f58.filesusr.com/ugd/a586f9_4d348ef509894b739f885af5483aa35c.pdf?index=true
- https://uploads.strikinglycdn.com/files/f0872710-560b-463a-9181-a0da606f05ce/33953869555.pdf
- https://uploads.strikinglycdn.com/files/3a205e6b-70e1-4018-9bd8-efc07c8e45bb/cheapest_singer_4423_sewing_machine.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_off0000cb1c.bin5f03bc810c083b31d68f98686262f58a26b53ff812c7479cd161e72ded3ce1c2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB1C | 5308 bytes |
font_01_sfnt_off0000dd1a.bine681dc6e97db5501dfc0da381f93a9dbb3aa7e88527eac1469d378732a64e7a1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD1A | 10452 bytes |
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