General
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Target
5a6b06b09bf293f99eeb0d32ebef9afe9569f3c6c5d8017d64a96d5fddecfdbdN.exe
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Size
372KB
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Sample
250216-jevapaymck
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MD5
a3e2bdf723423033668d774961aa7940
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SHA1
38e620fbe47f23a222716e1c538a4ddf47779823
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SHA256
5a6b06b09bf293f99eeb0d32ebef9afe9569f3c6c5d8017d64a96d5fddecfdbd
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SHA512
9848561fc1dfd8cb559c72e2b143723e0b157c08134a52e6446316731339f350fe00a5c07b58c15a3515ed75938a7ffabed3c3f2363557999e373b01e988e5e9
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SSDEEP
6144:tLdgUkQx+HXGidCzj8LBb8Rw5Jdypyf6aCXYfhii:tBqQx+H2i+8LBNbdypazCXY
Static task
static1
Behavioral task
behavioral1
Sample
5a6b06b09bf293f99eeb0d32ebef9afe9569f3c6c5d8017d64a96d5fddecfdbdN.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
5a6b06b09bf293f99eeb0d32ebef9afe9569f3c6c5d8017d64a96d5fddecfdbdN.exe
Resource
win10v2004-20250211-en
Malware Config
Extracted
remcos
2.4.3 Pro
TINo
185.140.53.140:2404
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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
true
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hide_file
false
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hide_keylog_file
true
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install_flag
true
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install_path
%AppData%
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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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keylog_path
%AppData%
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mouse_option
false
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mutex
Remcos-5S9O07
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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
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
5a6b06b09bf293f99eeb0d32ebef9afe9569f3c6c5d8017d64a96d5fddecfdbdN.exe
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Size
372KB
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MD5
a3e2bdf723423033668d774961aa7940
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SHA1
38e620fbe47f23a222716e1c538a4ddf47779823
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SHA256
5a6b06b09bf293f99eeb0d32ebef9afe9569f3c6c5d8017d64a96d5fddecfdbd
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SHA512
9848561fc1dfd8cb559c72e2b143723e0b157c08134a52e6446316731339f350fe00a5c07b58c15a3515ed75938a7ffabed3c3f2363557999e373b01e988e5e9
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SSDEEP
6144:tLdgUkQx+HXGidCzj8LBb8Rw5Jdypyf6aCXYfhii:tBqQx+H2i+8LBNbdypazCXY
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Modifies WinLogon for persistence
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Remcos family
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Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
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Downloads MZ/PE file
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
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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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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Modifies WinLogon
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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
Persistence
Boot or Logon Autostart Execution
4Active Setup
1Registry Run Keys / Startup Folder
1Winlogon Helper DLL
2Browser Extensions
1Event Triggered Execution
1Component Object Model Hijacking
1Privilege Escalation
Boot or Logon Autostart Execution
4Active Setup
1Registry Run Keys / Startup Folder
1Winlogon Helper DLL
2Event Triggered Execution
1Component Object Model Hijacking
1