General
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Target
WHYYexe.exe
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Size
469KB
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Sample
241106-2hmdcszdll
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MD5
0905830fb9416d08ec2009c8399ced22
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SHA1
1f059b7251fe8b94da20758186cac84008d5c627
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SHA256
bb9b5385a7d73e6861b0a2cbca600babbf36c961aa857b052f15d1d0177cd88c
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SHA512
29a5ccb813551ba7050b4463620407c7c634c1074c3e2205ef281a45f09ea4c6a5f36e1b6135f01f4186d9c8e05a9db3e301dc936fa918ff6d04014b8b15a966
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SSDEEP
12288:umnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSKn9:WiLJbpI7I2WhQqZ7K9
Behavioral task
behavioral1
Sample
WHYYexe.exe
Resource
win10v2004-20241007-en
Malware Config
Extracted
remcos
RemoteHost
camera-ms.gl.at.ply.gg:50534
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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
system.exe
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copy_folder
Remcos
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delete_file
true
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hide_file
true
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hide_keylog_file
false
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install_flag
true
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install_path
%WinDir%\System32
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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-U9W8K6
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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
Remcos
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take_screenshot_option
false
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take_screenshot_time
5
Targets
-
-
Target
WHYYexe.exe
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Size
469KB
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MD5
0905830fb9416d08ec2009c8399ced22
-
SHA1
1f059b7251fe8b94da20758186cac84008d5c627
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SHA256
bb9b5385a7d73e6861b0a2cbca600babbf36c961aa857b052f15d1d0177cd88c
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SHA512
29a5ccb813551ba7050b4463620407c7c634c1074c3e2205ef281a45f09ea4c6a5f36e1b6135f01f4186d9c8e05a9db3e301dc936fa918ff6d04014b8b15a966
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SSDEEP
12288:umnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSKn9:WiLJbpI7I2WhQqZ7K9
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Remcos family
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Deletes itself
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Executes dropped EXE
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Adds Run key to start application
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Drops file in System32 directory
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
3