Analysis
- max time kernel
149s - max time network
147s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
- submitted
07/05/2024, 06:14
General
- Target Bordbns.exe
- Size 415KB
- Sample240507-gzbb7sfe45
- 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 2 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 2 IoCs
- Suspicious behavior: MapViewOfSection 4 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 18 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
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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\rtvbfcviffiymfsmlhigsvznqpxxq"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\bnimyugctnacwlgqurvivimwzehgjkqw"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\mpoe"3⤵
- Suspicious use of AdjustPrivilegeToken
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
rtvbfcviffiymfsmlhigsvznqpxxq
System.dll
memory/2240-24-0x0000000077901000-0x0000000077A02000-memory.dmp
memory/2240-25-0x0000000077900000-0x0000000077AA9000-memory.dmp
memory/2556-96-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2556-87-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2556-75-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2556-32-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2556-99-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2556-66-0x0000000036640000-0x0000000036659000-memory.dmp
memory/2556-93-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2556-90-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2556-72-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2556-102-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2556-69-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2556-84-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2556-81-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2556-27-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2556-78-0x0000000000800000-0x0000000001862000-memory.dmp
memory/2556-26-0x0000000077900000-0x0000000077AA9000-memory.dmp
memory/2556-67-0x0000000036640000-0x0000000036659000-memory.dmp
memory/2556-63-0x0000000036640000-0x0000000036659000-memory.dmp
memory/2764-34-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2764-62-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2764-44-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2764-47-0x0000000077900000-0x0000000077AA9000-memory.dmp
memory/2764-40-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2796-51-0x0000000000400000-0x0000000000424000-memory.dmp
memory/2796-42-0x0000000000400000-0x0000000000424000-memory.dmp
memory/2796-43-0x0000000000400000-0x0000000000424000-memory.dmp
memory/2796-46-0x0000000000400000-0x0000000000424000-memory.dmp
memory/2796-41-0x0000000000400000-0x0000000000424000-memory.dmp
memory/2808-56-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2808-48-0x0000000077900000-0x0000000077AA9000-memory.dmp
memory/2808-45-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2808-39-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2808-33-0x0000000000400000-0x0000000000478000-memory.dmp