Analysis
- max time kernel
148s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
09/08/2024, 07:56
General
- Target 1723186744bedfb94f9d8fe08c28d2d97f262f591de8ad734e1fdbcb16d212ad7a7dcb687b827.dat-decoded.exe
- Size 483KB
- Sample240809-js4raayapl
- SHA256 86deacab2e41344ae5e6e0ef624f37682c7e93892f5cee12b069cc3cf5119410
Malware Config
Extracted
-
remcos
-
RemoteHost
-
host.wemnbbsweoipmngbyutrdcunbgrtjeroendns.pro:26734
-
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
word
-
keylog_path
%Temp%
-
mouse_option
false
-
mutex
Rmc-5W5YKY
-
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.
- Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
- Detected Nirsoft tools 9 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
- NirSoft MailPassView 4 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 3 IoCs
Password recovery tool for various web browsers
- 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 SetThreadContext 3 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 4 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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\1723186744bedfb94f9d8fe08c28d2d97f262f591de8ad734e1fdbcb16d212ad7a7dcb687b827.dat-decoded.exe"C:\Users\Admin\AppData\Local\Temp\1723186744bedfb94f9d8fe08c28d2d97f262f591de8ad734e1fdbcb16d212ad7a7dcb687b827.dat-decoded.exe"1⤵
- 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\1723186744bedfb94f9d8fe08c28d2d97f262f591de8ad734e1fdbcb16d212ad7a7dcb687b827.dat-decoded.exeC:\Users\Admin\AppData\Local\Temp\1723186744bedfb94f9d8fe08c28d2d97f262f591de8ad734e1fdbcb16d212ad7a7dcb687b827.dat-decoded.exe /stext "C:\Users\Admin\AppData\Local\Temp\nruarhbccvyy"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Users\Admin\AppData\Local\Temp\1723186744bedfb94f9d8fe08c28d2d97f262f591de8ad734e1fdbcb16d212ad7a7dcb687b827.dat-decoded.exeC:\Users\Admin\AppData\Local\Temp\1723186744bedfb94f9d8fe08c28d2d97f262f591de8ad734e1fdbcb16d212ad7a7dcb687b827.dat-decoded.exe /stext "C:\Users\Admin\AppData\Local\Temp\plztsrmvqeqlxij"2⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
-
-
C:\Users\Admin\AppData\Local\Temp\1723186744bedfb94f9d8fe08c28d2d97f262f591de8ad734e1fdbcb16d212ad7a7dcb687b827.dat-decoded.exeC:\Users\Admin\AppData\Local\Temp\1723186744bedfb94f9d8fe08c28d2d97f262f591de8ad734e1fdbcb16d212ad7a7dcb687b827.dat-decoded.exe /stext "C:\Users\Admin\AppData\Local\Temp\anelskwxemiqhoxspxj"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
nruarhbccvyy
logs.dat
memory/1324-9-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1324-3-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1324-10-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1324-21-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1324-12-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1324-7-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1344-4-0x0000000000400000-0x0000000000478000-memory.dmp
memory/1344-11-0x0000000000400000-0x0000000000478000-memory.dmp
memory/1344-26-0x0000000000400000-0x0000000000478000-memory.dmp
memory/1344-1-0x0000000000400000-0x0000000000478000-memory.dmp
memory/1344-8-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2112-33-0x0000000010000000-0x0000000010019000-memory.dmp
memory/2112-29-0x0000000010000000-0x0000000010019000-memory.dmp
memory/2112-32-0x0000000010000000-0x0000000010019000-memory.dmp
memory/2112-34-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2112-40-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5048-5-0x0000000000400000-0x0000000000424000-memory.dmp
memory/5048-14-0x0000000000400000-0x0000000000424000-memory.dmp
memory/5048-22-0x0000000000430000-0x00000000004F9000-memory.dmp
memory/5048-16-0x0000000000400000-0x0000000000424000-memory.dmp
memory/5048-23-0x0000000000400000-0x0000000000424000-memory.dmp