MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains an embedded URI pointing to a suspicious domain, and the document body, though heavily obfuscated, suggests a lure related to a 'calculus a complete course pdf free'. ClamAV and ML classifiers strongly indicate maliciousness, classifying it as a phishing trojan. The presence of numerous external URLs further supports the likelihood of this document being used to redirect users to malicious sites.
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://nipisod.ru/award?keyword=calculus+a+complete+course+pdf+free
- https://cdn.sqhk.co/fatepotax/agghaKH/16184298280.pdf
- https://cdn.sqhk.co/xavaxonad/ggjjgOp/dumebotipukazaviniradixa.pdf
- https://cdn.sqhk.co/rofezurit/ihjibcL/scientific_reasoning_the_bayesian_approach.pdf
- https://cdn.sqhk.co/zereseful/jfijmgh/32796037322.pdf
- http://mscredit.info/8022158605469dlc.pdf
- http://mavito.online/sarapunifamamipevozp8p59.pdf
- https://cdn-cms.f-static.net/uploads/4372087/normal_5fdc45757506a.pdf
- https://cdn.sqhk.co/patizuruf/4Qhaojd/nalixebitisiko.pdf
- https://cdn-cms.f-static.net/uploads/4499972/normal_601209510bf00.pdf
- https://cdn-cms.f-static.net/uploads/4469623/normal_601261e17ef96.pdf
- https://cdn-cms.f-static.net/uploads/4420761/normal_60426f26622a4.pdf
- http://meriline.store/65240223588wytxi.pdf
- http://nonretloli.site/95912409362lbx8n.pdf
- https://static.s123-cdn-static.com/uploads/4450047/normal_5fef8d1b05c66.pdf
- https://cdn.sqhk.co/takejirasomu/c6icpid/josorotuvo.pdf
- https://cdn-cms.f-static.net/uploads/4459784/normal_605aa65c2c754.pdf
- https://static.s123-cdn-static.com/uploads/4469633/normal_5ffa6dd0e5053.pdf
- https://cdn-cms.f-static.net/uploads/4407777/normal_605673bbcf8c3.pdf
- https://cdn.sqhk.co/nojebimit/Goehihd/red_star_sunglasses_amazon.pdf
- https://cdn.sqhk.co/gapebeve/hifVAij/cet_delhi_polytechnic_online_form_2019.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- 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_off0000ce74.bin630d6276b95e90791d60d702f7bbdf41364293184cc7656860f47359c78b7fca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE74 | 5208 bytes |
font_01_sfnt_off0000e00c.bin2513773016ab39e4011530c01971bcc9b883360701f882d83fb05dc30dbcdefa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE00C | 10488 bytes |
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