MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan payload. The document contains numerous embedded URLs, many of which point to disposable hosting and are likely part of a link farm designed to obscure the ultimate destination. One prominent URL, 'https://baarspo.ru/strik?utm_term=what+are+the+weirdest+last+names', suggests a lure related to search results or content discovery, aiming to trick users into clicking through to a malicious site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 5
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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://baarspo.ru/strik?utm_term=what+are+the+weirdest+last+names
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Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000118fb.binf4a0c74f52f72ecc57aa7a2bc1a0a648011c9bef90fe832fe58b016f97bdbe8f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118FB | 5172 bytes |
font_01_sfnt_off00012a74.bin28277323e542704c787dc035995a6e8b78b96b882c3cc70c46ed52b8a501460a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A74 | 2956 bytes |
font_02_sfnt_off000136ba.bin96abe80bed3acfe79c2d2be2297be7fbbf7e65d4351e12bd5081f9fa8798afd8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x136BA | 10996 bytes |
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