Analysis
- max time kernel
148s - max time network
144s - platform
windows11-21h2_x64 - resource
win11-20240426-en - resource tags
- submitted
04/06/2024, 13:20
General
- Target 8fbc4642276d9a4a7d9bd8403ad877f6924ca453390df838e032b3f89d376d18.exe
- Size 204KB
- Sample240604-qk773agh81
- SHA256 8fbc4642276d9a4a7d9bd8403ad877f6924ca453390df838e032b3f89d376d18
Malware Config
Extracted
-
remcos
-
RemoteHost
-
shenron19862.duckdns.org: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-4BD1SY
-
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.
- Suspicious use of SetThreadContext 1 IoCs
- Program crash 1 IoCs
- Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\8fbc4642276d9a4a7d9bd8403ad877f6924ca453390df838e032b3f89d376d18.exe"C:\Users\Admin\AppData\Local\Temp\8fbc4642276d9a4a7d9bd8403ad877f6924ca453390df838e032b3f89d376d18.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe-arguments2⤵
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1100 -s 6482⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1100 -ip 11001⤵
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
memory/2848-2-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2848-11-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2848-12-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2848-13-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2848-14-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2848-15-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2848-16-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2848-19-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2848-20-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2848-22-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2848-21-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2848-23-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2848-24-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2848-26-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2848-25-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2848-27-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2848-28-0x0000000000400000-0x0000000000482000-memory.dmp