Analysis
- max time kernel
299s - max time network
299s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
24/10/2024, 05:43
General
- Target 5702771896_AWB_20240902_225_20240902.exe
- Size 888KB
- Sample241024-gelmfawcmd
- SHA256 f85e3c3cace64f9432cc9588a77cb687cdca8378ec16334923849913632973ce
Malware Config
Extracted
-
remcos
-
RemoteHost
-
23.227.202.197:2404
-
audio_folder
MicRecords
-
audio_path
ApplicationPath
-
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-QPTXAI
-
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.
- Detected Nirsoft tools 6 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
- NirSoft MailPassView 2 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
- 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\5702771896_AWB_20240902_225_20240902.exe"C:\Users\Admin\AppData\Local\Temp\5702771896_AWB_20240902_225_20240902.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\5702771896_AWB_20240902_225_20240902.exe"C:\Users\Admin\AppData\Local\Temp\5702771896_AWB_20240902_225_20240902.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\5702771896_AWB_20240902_225_20240902.exeC:\Users\Admin\AppData\Local\Temp\5702771896_AWB_20240902_225_20240902.exe /stext "C:\Users\Admin\AppData\Local\Temp\zitdtzlqyfrhrugjlhgfjilmdqcbn"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Users\Admin\AppData\Local\Temp\5702771896_AWB_20240902_225_20240902.exeC:\Users\Admin\AppData\Local\Temp\5702771896_AWB_20240902_225_20240902.exe /stext "C:\Users\Admin\AppData\Local\Temp\bcyntswjmnjmtbunusbyuvgdeftkozvf"3⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
-
-
C:\Users\Admin\AppData\Local\Temp\5702771896_AWB_20240902_225_20240902.exeC:\Users\Admin\AppData\Local\Temp\5702771896_AWB_20240902_225_20240902.exe /stext "C:\Users\Admin\AppData\Local\Temp\lelg"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
zitdtzlqyfrhrugjlhgfjilmdqcbn
memory/1004-14-0x00007FFED8810000-0x00007FFED8A05000-memory.dmp
memory/2464-80-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2464-95-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2464-23-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2464-27-0x00007FFED8810000-0x00007FFED8A05000-memory.dmp
memory/2464-137-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2464-134-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2464-131-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2464-125-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2464-122-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2464-119-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2464-110-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2464-107-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2464-104-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2464-101-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2464-98-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2464-50-0x0000000033650000-0x0000000033669000-memory.dmp
memory/2464-92-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2464-17-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2464-54-0x0000000033650000-0x0000000033669000-memory.dmp
memory/2464-53-0x0000000033650000-0x0000000033669000-memory.dmp
memory/2464-21-0x00007FFED8810000-0x00007FFED8A05000-memory.dmp
memory/2464-56-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2464-15-0x00007FFED8810000-0x00007FFED8A05000-memory.dmp
memory/2464-59-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2464-16-0x00007FFED8810000-0x00007FFED8A05000-memory.dmp
memory/2464-62-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2464-65-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2464-74-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2464-77-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2904-43-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2904-34-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2904-26-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2904-39-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2904-40-0x0000000000400000-0x0000000000462000-memory.dmp
memory/3912-32-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3912-30-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3912-33-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3912-38-0x0000000000400000-0x0000000000424000-memory.dmp
memory/5012-47-0x0000000000400000-0x0000000000478000-memory.dmp
memory/5012-31-0x0000000000400000-0x0000000000478000-memory.dmp
memory/5012-29-0x0000000000400000-0x0000000000478000-memory.dmp
memory/5012-41-0x00007FFED8810000-0x00007FFED8A05000-memory.dmp
memory/5012-24-0x0000000000400000-0x0000000000478000-memory.dmp