MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, a technique often used to obscure malicious URLs or engage in SEO link farming. One of the primary URLs, 'https://crophysi.ru/strik?utm_term=city+car+driving+1.5+3+mod+installer', appears to be the main lure, disguised as a game mod installer. While no scripts were explicitly extracted, the PDF structure and the presence of external links suggest an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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-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://crophysi.ru/strik?utm_term=city+car+driving+1.5+3+mod+installer
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- https://5e6d3f51-9b35-4a29-baf4-1f036254a461.filesusr.com/ugd/99a8f2_5b5971061c0942b1b13a6524d0872b28.pdf?index=true
- https://uploads.strikinglycdn.com/files/5d166e8d-7761-40bd-a8a3-9a3d109bbffc/kupidivinivivabix.pdf
- https://uploads.strikinglycdn.com/files/23f48d3a-789d-49e9-b73b-025f0e18b198/vuxepenudonur.pdf
- https://b18ac5c8-c825-4c59-a0a1-290c879ce4f6.filesusr.com/ugd/1a0fde_9eb031777689477cb670e32d379fd2de.pdf?index=true
- https://s3.amazonaws.com/nodetuxapabara/39951889684.pdf
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- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
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- 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_off0000f2e5.bin61413cb6730e30f6e7c40349f2a8f898f0e0d98843f4c68bf92d02567d416127 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2E5 | 5696 bytes |
font_01_sfnt_off0001064c.bin8be3d0d96bd3bb674bf6a9046203976bb490a5becc183ce0cd72a33bf7eb9c80 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1064C | 11452 bytes |
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