Analysis
- max time kernel
150s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20240419-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.
- NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 3 IoCs
Password recovery tool for various web browsers
- Nirsoft 7 IoCs
- Loads dropped DLL 1 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 4 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: EnumeratesProcesses 6 IoCs
- Suspicious behavior: MapViewOfSection 4 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 14 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 SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Bordbns.exeC:\Users\Admin\AppData\Local\Temp\Bordbns.exe /stext "C:\Users\Admin\AppData\Local\Temp\gpbtufxotnkrgzfclyc"3⤵
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Users\Admin\AppData\Local\Temp\Bordbns.exeC:\Users\Admin\AppData\Local\Temp\Bordbns.exe /stext "C:\Users\Admin\AppData\Local\Temp\rrplvxiqhvcvjfbocbxqsyc"3⤵
- Accesses Microsoft Outlook accounts
-
-
C:\Users\Admin\AppData\Local\Temp\Bordbns.exeC:\Users\Admin\AppData\Local\Temp\Bordbns.exe /stext "C:\Users\Admin\AppData\Local\Temp\bluwwqsjvduittpslmksdlpegn"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
gpbtufxotnkrgzfclyc
System.dll
memory/864-23-0x00000000772B1000-0x00000000773D1000-memory.dmp
memory/864-24-0x0000000010004000-0x0000000010005000-memory.dmp
memory/3096-87-0x0000000000800000-0x0000000001A54000-memory.dmp
memory/3096-75-0x0000000000800000-0x0000000001A54000-memory.dmp
memory/3096-33-0x0000000000800000-0x0000000001A54000-memory.dmp
memory/3096-99-0x0000000000800000-0x0000000001A54000-memory.dmp
memory/3096-96-0x0000000000800000-0x0000000001A54000-memory.dmp
memory/3096-62-0x0000000037CF0000-0x0000000037D09000-memory.dmp
memory/3096-84-0x0000000000800000-0x0000000001A54000-memory.dmp
memory/3096-81-0x0000000000800000-0x0000000001A54000-memory.dmp
memory/3096-78-0x0000000000800000-0x0000000001A54000-memory.dmp
memory/3096-31-0x00000000772B1000-0x00000000773D1000-memory.dmp
memory/3096-72-0x0000000000800000-0x0000000001A54000-memory.dmp
memory/3096-27-0x0000000000800000-0x0000000001A54000-memory.dmp
memory/3096-69-0x0000000000800000-0x0000000001A54000-memory.dmp
memory/3096-26-0x0000000077355000-0x0000000077356000-memory.dmp
memory/3096-66-0x0000000000800000-0x0000000001A54000-memory.dmp
memory/3096-63-0x0000000037CF0000-0x0000000037D09000-memory.dmp
memory/3096-25-0x0000000077338000-0x0000000077339000-memory.dmp
memory/3096-59-0x0000000037CF0000-0x0000000037D09000-memory.dmp
memory/3684-51-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3684-54-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3684-50-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3684-47-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4372-56-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4372-38-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4372-45-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4372-36-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4372-34-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4500-37-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4500-39-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4500-46-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4500-40-0x0000000000400000-0x0000000000462000-memory.dmp