General
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Target
9478418b0a458f1a2c94ee2e61bf9c30f201f64fd02fc0a0406e13980f8df8a4
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Size
758KB
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Sample
210727-lewjfxkqwj
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MD5
226477557499248c71c770e7cf4ea6aa
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SHA1
9bee0ec9696074ee8bb486fc50e252e7bed0ef72
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SHA256
9478418b0a458f1a2c94ee2e61bf9c30f201f64fd02fc0a0406e13980f8df8a4
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SHA512
391dcc449e95d6dbf391b26fa8bc4857f2738f4964d969f10470c4b566dd0211e32af19bca87273096f9155a7398bca1207392e790c3c0c189c92732618320ab
Malware Config
Extracted
vidar
39.7
517
https://shpak125.tumblr.com/
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profile_id
517
Targets
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Target
9478418b0a458f1a2c94ee2e61bf9c30f201f64fd02fc0a0406e13980f8df8a4
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Size
758KB
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MD5
226477557499248c71c770e7cf4ea6aa
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SHA1
9bee0ec9696074ee8bb486fc50e252e7bed0ef72
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SHA256
9478418b0a458f1a2c94ee2e61bf9c30f201f64fd02fc0a0406e13980f8df8a4
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SHA512
391dcc449e95d6dbf391b26fa8bc4857f2738f4964d969f10470c4b566dd0211e32af19bca87273096f9155a7398bca1207392e790c3c0c189c92732618320ab
Score10/10-
Vidar
Vidar is an infostealer based on Arkei stealer.
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suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
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suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
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suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
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suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
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Vidar Stealer
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Downloads MZ/PE file
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Executes dropped EXE
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Loads dropped DLL
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Modifies file permissions
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Reads user/profile data of web browsers
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses 2FA software files, possible credential harvesting
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Accesses cryptocurrency files/wallets, possible credential harvesting
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of SetThreadContext
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