General
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Target
c35b7a09b11fde91e3e665b53f63b1843b8e91bcd361614c7cc14e9be3cd31f2
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Size
1.5MB
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Sample
250105-f2a9jssrb1
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MD5
bb057a39731b995515ae1fb31aab8997
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SHA1
c818a0e6f6d492c53956b56a0021b4e7ceeac969
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SHA256
c35b7a09b11fde91e3e665b53f63b1843b8e91bcd361614c7cc14e9be3cd31f2
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SHA512
d727bf1e6dd02b9779072444ebec0fa6b4f98251b09541431bc13710b1ec60764412d5ffd892a11adf82b2e62af302dfd05fc57d2b1e702b5d0fdebfc817ad66
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SSDEEP
24576:6D39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJlO/a:6F+QrFUBgq25eKX
Static task
static1
Behavioral task
behavioral1
Sample
c35b7a09b11fde91e3e665b53f63b1843b8e91bcd361614c7cc14e9be3cd31f2.exe
Resource
win7-20241023-en
Behavioral task
behavioral2
Sample
c35b7a09b11fde91e3e665b53f63b1843b8e91bcd361614c7cc14e9be3cd31f2.exe
Resource
win10v2004-20241007-en
Malware Config
Extracted
remcos
1.7 Pro
Host
213.183.58.19:4000
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audio_folder
audio
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audio_path
%AppData%
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audio_record_time
5
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connect_delay
0
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connect_interval
5
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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
true
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install_flag
false
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install_path
%AppData%
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keylog_crypt
true
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keylog_file
read.dat
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keylog_flag
false
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keylog_folder
CastC
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keylog_path
%AppData%
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mouse_option
false
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mutex
remcos_sccafsoidz
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screens
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screenshot_path
%AppData%
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screenshot_time
1
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startup_value
remcos
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take_screenshot_option
false
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take_screenshot_time
5
Extracted
remcos
Host
213.183.58.19:4000
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audio_folder
audio
-
audio_path
%AppData%
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audio_record_time
5
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connect_delay
0
-
connect_interval
5
-
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
true
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install_flag
false
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install_path
%AppData%
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keylog_crypt
true
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keylog_file
read.dat
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keylog_flag
false
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keylog_folder
CastC
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keylog_path
%AppData%
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mouse_option
false
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mutex
remcos_sccafsoidz
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screens
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screenshot_path
%AppData%
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screenshot_time
1
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startup_value
remcos
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take_screenshot_option
false
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take_screenshot_time
5
Targets
-
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Target
c35b7a09b11fde91e3e665b53f63b1843b8e91bcd361614c7cc14e9be3cd31f2
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Size
1.5MB
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MD5
bb057a39731b995515ae1fb31aab8997
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SHA1
c818a0e6f6d492c53956b56a0021b4e7ceeac969
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SHA256
c35b7a09b11fde91e3e665b53f63b1843b8e91bcd361614c7cc14e9be3cd31f2
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SHA512
d727bf1e6dd02b9779072444ebec0fa6b4f98251b09541431bc13710b1ec60764412d5ffd892a11adf82b2e62af302dfd05fc57d2b1e702b5d0fdebfc817ad66
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SSDEEP
24576:6D39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJlO/a:6F+QrFUBgq25eKX
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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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Executes dropped EXE
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Loads dropped DLL
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Adds Run key to start application
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1