General
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Target
05112024_0859_2024-11-05-5910184618-5910184618-fs�pdf.vbs.zip
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Size
8KB
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Sample
241105-kxqwnayglp
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MD5
91c5cd43d9a454641245dad9ce2147a8
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SHA1
cfbd9656991ed842de30e665668ccbbb02dfe5b6
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SHA256
b85e67bed677fa278dde9580629cf4680c9d135c2a6392302059d74db3acbf21
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SHA512
c4e3fd0ec3f3f7caeab79a507ece02e0f78facc60187bae0f591a9f8a5d8d60851678e04156480ae78a6141eb517878e9996c0b3b31687100ca86da49f31127f
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SSDEEP
192:hW1v+pLLqdWbxaaPQM5dqUGbYE7cRW9haM8VX4pynAutDath:qvwLIWb4aPQodqUtCaMSX4pas
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-05-5910184618-5910184618-fs·pdf.vbs
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-05-5910184618-5910184618-fs·pdf.vbs
Resource
win10v2004-20241007-en
Malware Config
Extracted
remcos
RemoteHost
a458386d9.duckdns.org:3256
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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
true
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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-4EN793
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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
2024-11-05-5910184618-5910184618-fs·pdf.vbs
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Size
15KB
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MD5
5ad52d64a21f10ad755ec87891cb0ee4
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SHA1
1ddc7de7db46b2a959d2725a82303eeffe6caa16
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SHA256
88697793e59cba6174bc6fe0418855032b73c8aa8f37aa522f75b12b60294cb6
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SHA512
84eedc76b14fa268adc52cb751a15b673660af8378dd62bbe2b8ef9e1f96416e489b09420822423ab506034c86dd71bde664cfe1a61823f2b858ee58eb4081c8
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SSDEEP
384:tb396jHpB+hxGJwWJWkyRZxZJQvPkFtGSqUsvVNccDqa:tNgIAJ/8nvxLQXszaV9Dqa
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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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Blocklisted process makes network request
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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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Adds Run key to start application
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Legitimate hosting services abused for malware hosting/C2
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Suspicious use of NtCreateThreadExHideFromDebugger
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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Modify Authentication Process
1Privilege 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 Authentication Process
1Modify Registry
3