General
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Target
2024-07-30_99177a95442cb3cd77f9359c948c9fbe_wannacry
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Size
188KB
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Sample
240730-wg7p1svhke
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MD5
99177a95442cb3cd77f9359c948c9fbe
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SHA1
764af2058a89c8ffa7e704bdb84d4492bcae5be2
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SHA256
612eb5c3269a264d1516904e24fe1bdfa17cb8a06441f03c483216eb52a9f526
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SHA512
94b9a2eb93d3b0c53de4ab90c800ad4212d41faf34e3bc7e8d628140db0e62546596215fd2d5f3d6b6cfff614b9bf33c61b3b7c87278adada504862bcc8c4b9f
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SSDEEP
3072:2osvQr9UpB/WcwALWP+nWVWRzO/LZLYq5r+6BQJAjrEzUV7kMq3LB4s:jr9Uv+KWP+nqei/Gq5aIjiUxFqt4
Malware Config
Targets
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Target
2024-07-30_99177a95442cb3cd77f9359c948c9fbe_wannacry
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Size
188KB
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MD5
99177a95442cb3cd77f9359c948c9fbe
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SHA1
764af2058a89c8ffa7e704bdb84d4492bcae5be2
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SHA256
612eb5c3269a264d1516904e24fe1bdfa17cb8a06441f03c483216eb52a9f526
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SHA512
94b9a2eb93d3b0c53de4ab90c800ad4212d41faf34e3bc7e8d628140db0e62546596215fd2d5f3d6b6cfff614b9bf33c61b3b7c87278adada504862bcc8c4b9f
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SSDEEP
3072:2osvQr9UpB/WcwALWP+nWVWRzO/LZLYq5r+6BQJAjrEzUV7kMq3LB4s:jr9Uv+KWP+nqei/Gq5aIjiUxFqt4
Score10/10-
Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Modifies boot configuration data using bcdedit
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Renames multiple (194) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Deletes backup catalog
Uses wbadmin.exe to inhibit system recovery.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Executes dropped EXE
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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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Drops desktop.ini file(s)
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Sets desktop wallpaper using registry
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