General
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Target
4d4b203f72413a42a31be62977b8a6508e7f04f9192913c432ab456b15fc3004.exe
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Size
481KB
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Sample
241119-e2xbcazeqg
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MD5
416df385ee8cc5b57c5869cff2142747
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SHA1
a79848e3b77e0e995dbc1b87c1a82b00bf4827eb
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SHA256
4d4b203f72413a42a31be62977b8a6508e7f04f9192913c432ab456b15fc3004
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SHA512
f76e9cb4adbfda277d87ea85473fe4554b77f8da4c0e86b073d31046a3f4cf37a75336eb44fa3d009d20cf28685a41f191148db8b3167524aa46e598eba9bca0
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SSDEEP
12288:LuD09AUkNIGBYYv4eK13x13nZHSRVMf139F5wIB7+IwtHwBtVxbesvZDSx+DY:O09AfNIEYsunZvZ19Z6s
Behavioral task
behavioral1
Sample
4d4b203f72413a42a31be62977b8a6508e7f04f9192913c432ab456b15fc3004.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
4d4b203f72413a42a31be62977b8a6508e7f04f9192913c432ab456b15fc3004.exe
Resource
win10v2004-20241007-en
Malware Config
Extracted
remcos
RemoteHost
nextnewupdationsforu.duckdns.org:14645
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audio_folder
MicRecords
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audio_path
ApplicationPath
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audio_record_time
5
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connect_delay
0
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connect_interval
1
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copy_file
remcos.exe
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copy_folder
Remcos
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delete_file
false
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hide_file
false
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hide_keylog_file
false
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install_flag
false
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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
remcos
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mouse_option
false
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mutex
Rmc-EC111K
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
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take_screenshot_option
false
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take_screenshot_time
5
Targets
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Target
4d4b203f72413a42a31be62977b8a6508e7f04f9192913c432ab456b15fc3004.exe
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Size
481KB
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MD5
416df385ee8cc5b57c5869cff2142747
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SHA1
a79848e3b77e0e995dbc1b87c1a82b00bf4827eb
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SHA256
4d4b203f72413a42a31be62977b8a6508e7f04f9192913c432ab456b15fc3004
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SHA512
f76e9cb4adbfda277d87ea85473fe4554b77f8da4c0e86b073d31046a3f4cf37a75336eb44fa3d009d20cf28685a41f191148db8b3167524aa46e598eba9bca0
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SSDEEP
12288:LuD09AUkNIGBYYv4eK13x13nZHSRVMf139F5wIB7+IwtHwBtVxbesvZDSx+DY:O09AfNIEYsunZvZ19Z6s
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Remcos family
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Detected Nirsoft tools
Free utilities often used by attackers which can steal passwords, product keys, etc.
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NirSoft MailPassView
Password recovery tool for various email clients
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NirSoft WebBrowserPassView
Password recovery tool for various web browsers
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Uses browser remote debugging
Can be used control the browser and steal sensitive information such as credentials and session cookies.
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Accesses Microsoft Outlook accounts
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Modify Authentication Process
1Steal Web Session Cookie
1Unsecured Credentials
1Credentials In Files
1