Analysis
- max time kernel
149s - max time network
148s - platform
windows7_x64 - resource
win7-20231129-en - resource tags
- submitted
07/05/2024, 08:29
General
- Target Bordbns.exe
- Size 415KB
- Sample240507-kdnxysbd59
- SHA256 b1ab36e342ada65f2ba8ebc069b3e6ab1c51c0a092e09addb8f3408cf8fbdf8a
Malware Config
Extracted
-
remcos
-
RemoteHost
-
185.202.173.179:2404
-
audio_folder
MicRecords
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
remcos.exe
-
copy_folder
Remcos
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
false
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-IQO6U9
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- Loads dropped DLL 1 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Program Files directory 4 IoCs
- Drops file in Windows directory 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Bordbns.exe"C:\Users\Admin\AppData\Local\Temp\Bordbns.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Bordbns.exe"C:\Users\Admin\AppData\Local\Temp\Bordbns.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
System.dll
memory/2240-24-0x0000000076E91000-0x0000000076F92000-memory.dmp
memory/2240-25-0x0000000076E90000-0x0000000077039000-memory.dmp
memory/2632-27-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2632-47-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2632-34-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2632-38-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2632-26-0x0000000076E90000-0x0000000077039000-memory.dmp
memory/2632-41-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2632-43-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2632-28-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2632-50-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2632-52-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2632-55-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2632-59-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2632-62-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2632-64-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2632-67-0x0000000000800000-0x0000000001862000-memory.dmp