General
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Target
rQ000112241R02_October-24.exe
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Size
3.7MB
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Sample
241111-tf7bratrfr
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MD5
b7419c5f4cb484befbb098627475a806
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SHA1
c59a69a2a19fab12903b38a73fea20edc7013abb
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SHA256
b7cd81494be4fd997d0d47cde6689f357b52f4ac8c50ab730569edef51a25a8c
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SHA512
471cb8e64ad1048c0f7d211212cd014d4b561f041aa4d9f8c324aa5736d5e37a65292218c3f8eba78298f9d9fa48fd2f3b932912eecfd305f744ac583ca1eed6
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SSDEEP
24576:G6NBJgWDzcRxQi9yiLiS02733o8MpIVPc:hBJgWAQi9y+502Cm0
Static task
static1
Behavioral task
behavioral1
Sample
rQ000112241R02_October-24.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
rQ000112241R02_October-24.exe
Resource
win10v2004-20241007-en
Malware Config
Extracted
remcos
RemoteHost
198.46.178.148:2024
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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-Z20G9Z
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screenshot_crypt
false
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screenshot_flag
true
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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
rQ000112241R02_October-24.exe
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Size
3.7MB
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MD5
b7419c5f4cb484befbb098627475a806
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SHA1
c59a69a2a19fab12903b38a73fea20edc7013abb
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SHA256
b7cd81494be4fd997d0d47cde6689f357b52f4ac8c50ab730569edef51a25a8c
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SHA512
471cb8e64ad1048c0f7d211212cd014d4b561f041aa4d9f8c324aa5736d5e37a65292218c3f8eba78298f9d9fa48fd2f3b932912eecfd305f744ac583ca1eed6
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SSDEEP
24576:G6NBJgWDzcRxQi9yiLiS02733o8MpIVPc:hBJgWAQi9y+502Cm0
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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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Looks for VirtualBox Guest Additions in registry
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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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Looks for VMWare Tools registry key
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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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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Maps connected drives based on registry
Disk information is often read in order to detect sandboxing environments.
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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
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
3Disable or Modify Tools
3Modify Registry
4Virtualization/Sandbox Evasion
2