Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
25/10/2024, 01:02
General
- Target 034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe
- Size 511KB
- Sample241025-bdvwtszfml
- SHA256 034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a
Malware Config
Extracted
-
remcos
-
RemoteHost
-
212.162.149.195:2404
-
audio_folder
MicRecords
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audio_path
ApplicationPath
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
remcos.exe
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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-9EP276
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Remcos
Remcos is a closed-source remote control and surveillance software.
- Detected Nirsoft tools 7 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
- NirSoft MailPassView 3 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 2 IoCs
Password recovery tool for various web browsers
- Loads dropped DLL 2 IoCs
- Reads user/profile data of web browsers 3 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 Windows directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- 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\034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe"C:\Users\Admin\AppData\Local\Temp\034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe"C:\Users\Admin\AppData\Local\Temp\034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exeC:\Users\Admin\AppData\Local\Temp\034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe /stext "C:\Users\Admin\AppData\Local\Temp\pfmroazdjvb"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Users\Admin\AppData\Local\Temp\034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exeC:\Users\Admin\AppData\Local\Temp\034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe /stext "C:\Users\Admin\AppData\Local\Temp\zirkossxxetpmr"3⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
-
-
C:\Users\Admin\AppData\Local\Temp\034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exeC:\Users\Admin\AppData\Local\Temp\034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe /stext "C:\Users\Admin\AppData\Local\Temp\jcxcpldykmluoghhz"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
System.dll
pfmroazdjvb
memory/672-42-0x0000000000400000-0x0000000000462000-memory.dmp
memory/672-38-0x0000000000400000-0x0000000000462000-memory.dmp
memory/672-34-0x0000000000400000-0x0000000000462000-memory.dmp
memory/672-36-0x0000000000400000-0x0000000000462000-memory.dmp
memory/672-40-0x0000000000400000-0x0000000000462000-memory.dmp
memory/3788-67-0x0000000000470000-0x00000000016C4000-memory.dmp
memory/3788-25-0x0000000000470000-0x00000000016C4000-memory.dmp
memory/3788-70-0x0000000000470000-0x00000000016C4000-memory.dmp
memory/3788-31-0x0000000000470000-0x00000000016C4000-memory.dmp
memory/3788-94-0x0000000000470000-0x00000000016C4000-memory.dmp
memory/3788-27-0x0000000000470000-0x00000000016C4000-memory.dmp
memory/3788-91-0x0000000000470000-0x00000000016C4000-memory.dmp
memory/3788-88-0x0000000000470000-0x00000000016C4000-memory.dmp
memory/3788-85-0x0000000000470000-0x00000000016C4000-memory.dmp
memory/3788-26-0x00000000016D0000-0x0000000003F2E000-memory.dmp
memory/3788-76-0x0000000000470000-0x00000000016C4000-memory.dmp
memory/3788-73-0x0000000000470000-0x00000000016C4000-memory.dmp
memory/3788-24-0x00000000016D0000-0x0000000003F2E000-memory.dmp
memory/3788-82-0x0000000000470000-0x00000000016C4000-memory.dmp
memory/3788-64-0x0000000000470000-0x00000000016C4000-memory.dmp
memory/3788-79-0x0000000000470000-0x00000000016C4000-memory.dmp
memory/3788-55-0x0000000034F20000-0x0000000034F39000-memory.dmp
memory/3788-58-0x0000000034F20000-0x0000000034F39000-memory.dmp
memory/3788-59-0x0000000034F20000-0x0000000034F39000-memory.dmp
memory/3788-61-0x0000000000470000-0x00000000016C4000-memory.dmp
memory/3892-52-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3892-37-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3892-35-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3892-33-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4100-20-0x00000000049F0000-0x000000000724E000-memory.dmp
memory/4100-21-0x00000000770F1000-0x0000000077211000-memory.dmp
memory/4100-22-0x0000000010004000-0x0000000010005000-memory.dmp
memory/4100-23-0x00000000049F0000-0x000000000724E000-memory.dmp
memory/4912-41-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4912-48-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4912-49-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4912-46-0x0000000000400000-0x0000000000424000-memory.dmp