MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged as malicious by a ClamAV signature and an ML classifier. It contains a large number of external links, many pointing to S3 buckets and Weebly-hosted PDFs, suggesting a link farm or phishing attempt. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, with one example being 'https://s3.amazonaws.com/mijedusovineti/rocket_propulsion_elements_ninth_edition.pdf'. The presence of embedded URLs and the overall structure strongly suggest a phishing or malware distribution vector.
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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://trafficel.ru/aws?utm_term=avg+free+full++for+mac
- https://mekuxiwefajup.weebly.com/uploads/1/3/0/7/130739023/5829299.pdf
- https://cdn-cms.f-static.net/uploads/4501380/normal_5fafff790f692.pdf
- https://cdn-cms.f-static.net/uploads/4369322/normal_5f914f0978237.pdf
- https://tetegewa.weebly.com/uploads/1/3/4/7/134761184/gusubinevuxu.pdf
- https://misutinulil.weebly.com/uploads/1/3/1/4/131407711/fd46e57ac9e.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/mijedusovineti/rocket_propulsion_elements_ninth_edition.pdf
- https://s3.amazonaws.com/kagedatabujo/indestructo_tank_3.pdf
- https://s3.amazonaws.com/zemigiduwagafu/gerivavezi.pdf
- https://s3.amazonaws.com/nigimul/1300790415.pdf
- https://s3.amazonaws.com/panokojol/complete_savings_refund_form.pdf
- https://s3.amazonaws.com/gogunabones/acid_and_base_ph_simulation_lab_answers.pdf
- https://s3.amazonaws.com/vuzotisenixava/67864079487.pdf
- https://s3.amazonaws.com/kulinisokakewi/under_armour_team_uniforms_builder.pdf
- https://s3.amazonaws.com/fejififimaketo/vujumokulupufuvo.pdf
- https://s3.amazonaws.com/lebaxa/chakravakam_songs_free.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_off0000e458.bin39663824d24d99992687279c105866886a474b75eed76d2d583a78f857566bcc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE458 | 5072 bytes |
font_01_sfnt_off0000f591.binfc7337f20c5e90bc24faaed5f392609b5965e732d1f513ac9dc0a6819b0121c9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF591 | 10568 bytes |
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