General
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Target
remcos_abuild.exe
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Size
469KB
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Sample
230919-ztm3xsea96
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MD5
5090370364492fd0bf68278a6d70bf92
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SHA1
49cfa076f528b7502eb5802ecb9dda07444261bc
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SHA256
bcf7c9948beae0bd279a7314ba7911269832bd8613ddc7ddc0f85b1287040743
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SHA512
5ef3fbe4a3bdd1bd5d94db9665b355c8dac0400d2b1e167952f8080bdd11c70e3c1d8c17e119bd2b526a4808dd5249fa1047b608a36ca3775e569d246804528e
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SSDEEP
12288:omnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSTn9:YiLJbpI7I2WhQqZ7T9
Behavioral task
behavioral1
Sample
remcos_abuild.exe
Resource
win10v2004-20230915-en
Malware Config
Extracted
remcos
RemoteHostBuild
soon-lp.at.ply.gg:17209
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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
HostSv.exe
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copy_folder
svchost
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delete_file
false
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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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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
Rmc1122-3PEX6O
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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
remcos_abuild.exe
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Size
469KB
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MD5
5090370364492fd0bf68278a6d70bf92
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SHA1
49cfa076f528b7502eb5802ecb9dda07444261bc
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SHA256
bcf7c9948beae0bd279a7314ba7911269832bd8613ddc7ddc0f85b1287040743
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SHA512
5ef3fbe4a3bdd1bd5d94db9665b355c8dac0400d2b1e167952f8080bdd11c70e3c1d8c17e119bd2b526a4808dd5249fa1047b608a36ca3775e569d246804528e
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SSDEEP
12288:omnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSTn9:YiLJbpI7I2WhQqZ7T9
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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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Nirsoft
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Adds policy Run key to start application
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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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Accesses Microsoft Outlook accounts
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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 Matrix ATT&CK v13
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
4