MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF file contains a significant number of external links, identified as a PDF_SEO_LINK_FARM heuristic. One of the primary external links points to 'https://trafficel.ru/123?utm_term=husqvarna+125bt+carburetor', which is likely part of a malicious campaign. The ClamAV detection and ML classifier also indicate malicious content, specifically a 'Pdf.Phishing.Trojan'. The document body is heavily obfuscated and unreadable, preventing a deeper analysis of its specific intent beyond link distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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/123?utm_term=husqvarna+125bt+carburetor
- https://cdn-cms.f-static.net/uploads/4454432/normal_5faefe9f67f04.pdf
- https://cdn-cms.f-static.net/uploads/4384144/normal_5f8f2a7c62010.pdf
- https://cdn-cms.f-static.net/uploads/4369786/normal_5f88200a48a87.pdf
- https://cdn-cms.f-static.net/uploads/4476140/normal_5fa84d3a2ccb4.pdf
- https://cdn-cms.f-static.net/uploads/4406776/normal_5f9e52e85b329.pdf
- https://cdn-cms.f-static.net/uploads/4417809/normal_5fb39ee2718d1.pdf
- https://rixilokif.weebly.com/uploads/1/3/4/1/134109141/5243596.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/e324a890-f9a7-4793-b291-f1526ec32136/how_to_noclip_jailbreak.pdf
- https://uploads.strikinglycdn.com/files/01d10360-343a-4360-a747-688657c67741/drill_chart_mm.pdf
- https://s3.amazonaws.com/lixuduwonifa/principles_and_applications_of_aggregation-_induced_emission.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_off0000c65e.bind9647651457ef21cf981e471f70b02c8db1c4415b695f37c15953552783e065a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC65E | 5356 bytes |
font_01_sfnt_off0000d8b7.binc4a82abd86e9bd51992c0b26d6365a2f27fec8353e1cb7780862a950759d370a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8B7 | 9796 bytes |
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