Analysis
- max time kernel
149s - max time network
135s - platform
windows10-2004_x64 - resource
win10v2004-20230221-en - resource tags
- submitted
08/05/2023, 08:29
General
- Target HSBC Bank_MT 103 Payment_ Transfer Copy_PDF.exe
- Size 399KB
- Sample230508-kdkwashf77
- SHA256 58fd0463cf7793ad6cbd0cd048369e70f01051c943a8655b97358065f4e2b0fb
Malware Config
Extracted
-
remcos
-
RemoteHost
-
146.70.158.105:9674
-
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-UM9GKS
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
startup_value
Remcos
-
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.
- Checks QEMU agent file 2 TTPs 2 IoCs
Checks presence of QEMU agent, possibly to detect virtualization.
- Loads dropped DLL 2 IoCs
- Adds Run key to start application 2 TTPs 2 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\HSBC Bank_MT 103 Payment_ Transfer Copy_PDF.exe"C:\Users\Admin\AppData\Local\Temp\HSBC Bank_MT 103 Payment_ Transfer Copy_PDF.exe"1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\HSBC Bank_MT 103 Payment_ Transfer Copy_PDF.exe"C:\Users\Admin\AppData\Local\Temp\HSBC Bank_MT 103 Payment_ Transfer Copy_PDF.exe"2⤵
- Checks QEMU agent file
- Adds Run key to start application
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
System.dll
System.dll
System.dll
memory/1640-168-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1640-166-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1640-150-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1640-151-0x0000000001660000-0x00000000032EE000-memory.dmp
memory/1640-153-0x0000000001660000-0x00000000032EE000-memory.dmp
memory/1640-160-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1640-164-0x0000000001660000-0x00000000032EE000-memory.dmp
memory/1640-174-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1640-167-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1640-173-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1640-169-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1640-170-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1640-171-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1640-172-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4532-148-0x0000000004CC0000-0x000000000694E000-memory.dmp
memory/4532-149-0x0000000004CC0000-0x000000000694E000-memory.dmp