MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of external links, many pointing to S3 buckets and other cloud storage services, suggesting a link farm or a distribution mechanism for further payloads. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as a phishing trojan. The embedded URL `https://dafemum.ru/123?utm_term=comparative+superlative+worksheet+grade+3` is likely the primary lure, directing users to a malicious site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 5
-
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.
-
ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
-
External URI info PDF_URIPDF contains an external URL action
-
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.
-
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://dafemum.ru/123?utm_term=comparative+superlative+worksheet+grade+3
- https://cdn-cms.f-static.net/uploads/4387031/normal_6019f1e088718.pdf
- https://static.s123-cdn-static.com/uploads/4426966/normal_5fdfae7e8182c.pdf
- https://static.s123-cdn-static.com/uploads/4377662/normal_60025ae0069b5.pdf
- https://static.s123-cdn-static.com/uploads/4450251/normal_600221e0dccb4.pdf
- https://cdn-cms.f-static.net/uploads/4420248/normal_5fd93248c3855.pdf
- https://cdn-cms.f-static.net/uploads/4499635/normal_603979bbc1da6.pdf
- https://static.s123-cdn-static.com/uploads/4401989/normal_5ff261e087eeb.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://s3.amazonaws.com/fejififimaketo/lupotegerevokamijavutufa.pdf
- https://s3.amazonaws.com/xepululejiwof/sibifegiwuwet.pdf
- https://s3.amazonaws.com/jarirotexab/bhakti_songs_free_._com.pdf
- https://s3.amazonaws.com/nakuzafol/98741072982.pdf
- https://s3.amazonaws.com/marimejerebo/the_key_moment_meaning.pdf
- https://2ac8321c-28d8-41c8-ac7a-99137a6fe030.filesusr.com/ugd/157ee0_df17275921524bf49fb3940a3db29424.pdf?index=true
- http://resisimokopi.epizy.com/auto_format_visual_studio_c.pdf
- https://s3.amazonaws.com/resisuna/que_es_el_local_guides.pdf
- http://magomodatibotu.epizy.com/happy_birthday_to_you_free.pdf
- https://s3.amazonaws.com/xunilukegez/ejercicios_de_porcentajes.pdf
- https://16564176-4c62-44d7-82e3-1dea6b832d73.filesusr.com/ugd/5e57cf_2d81290ddb5d4ace816ad489efc1fceb.pdf?index=true
- https://s3.amazonaws.com/zepifudoxapo/90758023462.pdf
- https://6c8ebe11-725c-420b-823a-68bc39d02ad2.filesusr.com/ugd/3e87bf_64118400ff8243db908eff22ec7a24e3.pdf?index=true
- https://s3.amazonaws.com/kelukakeb/geninerupidox.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d4a1.binc7285c12575770d14b16fc5735e3ae34f7d7fa50491b0867338352722935f611 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4A1 | 5552 bytes |
font_01_sfnt_off0000e79f.bine77cfa913565a078f26c3a86a252ab2fcf5d91dda5b497d9d86fd2020b2292e8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE79F | 10928 bytes |
font_02_sfnt_off00010cd0.bin9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CD0 | 4324 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.