General
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Target
733e47fd70fea7d93b7093c5e859c0abb2e54f338c4f256791847dc3b1a5349a
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Size
1.1MB
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Sample
241130-at9jgstqhz
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MD5
a57b7e38d1765b7f08587a7d9004894b
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SHA1
d4e8d9a1de6621b4ec9a8c4fba962b7f7b53221f
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SHA256
733e47fd70fea7d93b7093c5e859c0abb2e54f338c4f256791847dc3b1a5349a
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SHA512
54aeec3eba54e56c26ed31107e65cda1b594b6d054823e6f10a3f1509c3943b2fad8dc4cc3cffa0df731bd312eeb1e43589b0d610dcdda628be19599a6e52f82
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SSDEEP
24576:6qvk/2pbAX+MRzZeIeKK2gOSAt4hI+KXb:zvkO5AFzAN0hSAt4oXb
Static task
static1
Behavioral task
behavioral1
Sample
733e47fd70fea7d93b7093c5e859c0abb2e54f338c4f256791847dc3b1a5349a.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
733e47fd70fea7d93b7093c5e859c0abb2e54f338c4f256791847dc3b1a5349a.exe
Resource
win10v2004-20241007-en
Malware Config
Extracted
remcos
ECHE
85.31.47.62:45356
127.0.0.1:45356
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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-AEO8MN
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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
733e47fd70fea7d93b7093c5e859c0abb2e54f338c4f256791847dc3b1a5349a
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Size
1.1MB
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MD5
a57b7e38d1765b7f08587a7d9004894b
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SHA1
d4e8d9a1de6621b4ec9a8c4fba962b7f7b53221f
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SHA256
733e47fd70fea7d93b7093c5e859c0abb2e54f338c4f256791847dc3b1a5349a
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SHA512
54aeec3eba54e56c26ed31107e65cda1b594b6d054823e6f10a3f1509c3943b2fad8dc4cc3cffa0df731bd312eeb1e43589b0d610dcdda628be19599a6e52f82
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SSDEEP
24576:6qvk/2pbAX+MRzZeIeKK2gOSAt4hI+KXb:zvkO5AFzAN0hSAt4oXb
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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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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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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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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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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
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Modify Authentication Process
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Modify Authentication Process
1Steal Web Session Cookie
1Unsecured Credentials
1Credentials In Files
1