General
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Target
remcos_a.exe
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Size
469KB
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Sample
240911-n5ys1szcjg
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MD5
22ce3d0fc9f92829be87f978fc573680
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SHA1
2a55144aed0886304b490fbcc623be46a8871065
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SHA256
8741e2fc5b709526eaec1e791c56c7d2c65f312940b81e6027bd6ee2b181d940
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SHA512
6bcd798e8db887dc0822ba196c2d9efb96fbe604f3728069d0bff04d5862c0d2ac2b4b2d810f310a2ec211e8244ce078b93d72debf427099dbce8f2420d88f4c
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SSDEEP
12288:umnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSEn9:WiLJbpI7I2WhQqZ7E9
Behavioral task
behavioral1
Sample
remcos_a.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
remcos_a.exe
Resource
win10v2004-20240802-en
Malware Config
Extracted
remcos
COM Surrogate
stay-daughters.gl.at.ply.gg:43206
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audio_folder
MicRecords
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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
COM Surrogate.exe
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copy_folder
COM Surrogate
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delete_file
false
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hide_file
false
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hide_keylog_file
true
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install_flag
true
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keylog_crypt
true
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
Windows
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mouse_option
false
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mutex
Rmc-C5SENV
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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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startup_value
COM Surrogate
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take_screenshot_option
false
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take_screenshot_time
5
Targets
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Target
remcos_a.exe
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Size
469KB
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MD5
22ce3d0fc9f92829be87f978fc573680
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SHA1
2a55144aed0886304b490fbcc623be46a8871065
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SHA256
8741e2fc5b709526eaec1e791c56c7d2c65f312940b81e6027bd6ee2b181d940
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SHA512
6bcd798e8db887dc0822ba196c2d9efb96fbe604f3728069d0bff04d5862c0d2ac2b4b2d810f310a2ec211e8244ce078b93d72debf427099dbce8f2420d88f4c
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SSDEEP
12288:umnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSEn9:WiLJbpI7I2WhQqZ7E9
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Credentials from Password Stores: Credentials from Web Browsers
Malicious Access or copy of Web Browser Credential store.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Loads dropped DLL
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Adds Run key to start application
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Program crash
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Suspicious use of SetThreadContext
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