General
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Target
410cca3a97537d37ab63c36ed155f11683e791f3a1ed2419e3d17d9f433f1650
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Size
758KB
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Sample
210728-ykrg4yerm2
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MD5
a36609804058f5d47c6401fdcfacb6a2
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SHA1
6fe99f6f73dc47d0e6752b4a585e6615ecbd7677
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SHA256
410cca3a97537d37ab63c36ed155f11683e791f3a1ed2419e3d17d9f433f1650
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SHA512
1eee6c62ccdc5cdbe6825d8214ead6ba212e9e8a158abe7a64c762e37e247b60e6e1d0b1918b10341bed52615bef93c61a1b628465f8bf71d641947be3641a56
Malware Config
Extracted
vidar
39.7
517
https://shpak125.tumblr.com/
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profile_id
517
Targets
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Target
410cca3a97537d37ab63c36ed155f11683e791f3a1ed2419e3d17d9f433f1650
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Size
758KB
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MD5
a36609804058f5d47c6401fdcfacb6a2
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SHA1
6fe99f6f73dc47d0e6752b4a585e6615ecbd7677
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SHA256
410cca3a97537d37ab63c36ed155f11683e791f3a1ed2419e3d17d9f433f1650
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SHA512
1eee6c62ccdc5cdbe6825d8214ead6ba212e9e8a158abe7a64c762e37e247b60e6e1d0b1918b10341bed52615bef93c61a1b628465f8bf71d641947be3641a56
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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