General
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Target
ef6663a386947c3a2dfb1b0ec51050ef2b4b6d1e5cde8264e17c92282a159506
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Size
255KB
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Sample
221030-batvcsfbak
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MD5
a33e8a8c3463ad0c7f3962d4f6179880
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SHA1
b850af32ab7d09da67c0caef424c718cecf0ad71
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SHA256
ef6663a386947c3a2dfb1b0ec51050ef2b4b6d1e5cde8264e17c92282a159506
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SHA512
2ea72ecc7a8030f15369807fb15b7aa2f1d6a6377bce01dd126cbc0e5f6863ad2b1bec34d341f051e29caa577c7860dda67028ed71b49f360f6ab65479af5877
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SSDEEP
3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJ/:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIg
Behavioral task
behavioral1
Sample
ef6663a386947c3a2dfb1b0ec51050ef2b4b6d1e5cde8264e17c92282a159506.exe
Resource
win7-20220901-en
Malware Config
Targets
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Target
ef6663a386947c3a2dfb1b0ec51050ef2b4b6d1e5cde8264e17c92282a159506
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Size
255KB
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MD5
a33e8a8c3463ad0c7f3962d4f6179880
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SHA1
b850af32ab7d09da67c0caef424c718cecf0ad71
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SHA256
ef6663a386947c3a2dfb1b0ec51050ef2b4b6d1e5cde8264e17c92282a159506
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SHA512
2ea72ecc7a8030f15369807fb15b7aa2f1d6a6377bce01dd126cbc0e5f6863ad2b1bec34d341f051e29caa577c7860dda67028ed71b49f360f6ab65479af5877
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SSDEEP
3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJ/:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIg
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Modifies visibility of file extensions in Explorer
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Modifies visiblity of hidden/system files in Explorer
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Disables RegEdit via registry modification
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Executes dropped EXE
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Loads dropped DLL
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Adds Run key to start application
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Modifies WinLogon
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AutoIT Executable
AutoIT scripts compiled to PE executables.
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v6
Persistence
Hidden Files and Directories
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Defense Evasion
Disabling Security Tools
2Hidden Files and Directories
2Modify Registry
7