General
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Target
Roblox Evon Exploit V4_80175.exe
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Size
8.7MB
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Sample
230401-nta8kshg65
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MD5
98194b1fd3ceea50438976b40ea59d05
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SHA1
ed918fbb5765aa91e5c9d2c492ec00667478ac35
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SHA256
3e091df4051e6b0859c2142a0869a415e5968c20edb5e9a60fcd077f7b61be19
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SHA512
9587acb23ee51e4743c5399b78b64f2a0e87e2413cd56e220df8c08ebe0f352ac0ca83c1826f09718876a6248057e9cbac0f38ee725de83b4ca7de4f805f30bf
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SSDEEP
196608:wu6nOE62LOa8ewFCrqNeuUG59Fa9FVDNWXVkHo/ly:MOb2C6wFCrqNZ529PDNs2Ho/k
Static task
static1
Behavioral task
behavioral1
Sample
Roblox Evon Exploit V4_80175.exe
Resource
win10-20230220-en
Behavioral task
behavioral2
Sample
Roblox Evon Exploit V4_80175.exe
Resource
win10v2004-20230220-en
Malware Config
Extracted
C:\Users\Admin\AppData\Local\Temp\Temp1_WannaCrypt0r.zip\@Please_Read_Me@.txt
wannacry
13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94
Targets
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Target
Roblox Evon Exploit V4_80175.exe
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Size
8.7MB
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MD5
98194b1fd3ceea50438976b40ea59d05
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SHA1
ed918fbb5765aa91e5c9d2c492ec00667478ac35
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SHA256
3e091df4051e6b0859c2142a0869a415e5968c20edb5e9a60fcd077f7b61be19
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SHA512
9587acb23ee51e4743c5399b78b64f2a0e87e2413cd56e220df8c08ebe0f352ac0ca83c1826f09718876a6248057e9cbac0f38ee725de83b4ca7de4f805f30bf
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SSDEEP
196608:wu6nOE62LOa8ewFCrqNeuUG59Fa9FVDNWXVkHo/ly:MOb2C6wFCrqNZ529PDNs2Ho/k
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Modifies WinLogon for persistence
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Modifies extensions of user files
Ransomware generally changes the extension on encrypted files.
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Drops startup 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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Adds Run key to start application
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Checks for any installed AV software in registry
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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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Legitimate hosting services abused for malware hosting/C2
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Sets desktop wallpaper using registry
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MITRE ATT&CK Matrix ATT&CK v6
Persistence
Winlogon Helper DLL
1Registry Run Keys / Startup Folder
1Bootkit
1Scheduled Task
1Hidden Files and Directories
1Defense Evasion
Modify Registry
7Bypass User Account Control
1Disabling Security Tools
1File Deletion
1File Permissions Modification
1Install Root Certificate
1Hidden Files and Directories
1