Analysis
- max time kernel
151s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
05/10/2022, 07:00
General
- Target PO_No._ANOP0652.exe
- Size 6KB
- Sample221005-hsxsasdghk
- SHA256 0249b8c395e7035b2910900f092f9856831f9312f9fdeee7a027dea8b2f7b199
Malware Config
Extracted
-
remcos
-
50005
-
45.155.165.117:50005
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audio_folder
MicRecords
-
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
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keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
jubjutgwfkpjgsh-G1HYQL
-
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
- Remcos
Remcos is a closed-source remote control and surveillance software.
- NirSoft MailPassView 1 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 2 IoCs
Password recovery tool for various web browsers
- Nirsoft 4 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious behavior: MapViewOfSection 3 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 27 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\PO_No._ANOP0652.exe"C:\Users\Admin\AppData\Local\Temp\PO_No._ANOP0652.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANAA5AA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\PO_No._ANOP0652.exeC:\Users\Admin\AppData\Local\Temp\PO_No._ANOP0652.exe2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\PO_No._ANOP0652.exeC:\Users\Admin\AppData\Local\Temp\PO_No._ANOP0652.exe /stext "C:\Users\Admin\AppData\Local\Temp\lutyptjlr"3⤵
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Users\Admin\AppData\Local\Temp\PO_No._ANOP0652.exeC:\Users\Admin\AppData\Local\Temp\PO_No._ANOP0652.exe /stext "C:\Users\Admin\AppData\Local\Temp\vwyrqltmftum"3⤵
- Accesses Microsoft Outlook accounts
-
-
C:\Users\Admin\AppData\Local\Temp\PO_No._ANOP0652.exeC:\Users\Admin\AppData\Local\Temp\PO_No._ANOP0652.exe /stext "C:\Users\Admin\AppData\Local\Temp\gqmcqdegtbmzsee"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
lutyptjlr
memory/624-147-0x0000000000400000-0x000000000047F000-memory.dmp
memory/624-157-0x0000000000400000-0x000000000047F000-memory.dmp
memory/624-148-0x0000000000400000-0x000000000047F000-memory.dmp
memory/624-146-0x0000000000400000-0x000000000047F000-memory.dmp
memory/624-145-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4124-133-0x00000000060B0000-0x00000000060D2000-memory.dmp
memory/4124-132-0x0000000000660000-0x0000000000668000-memory.dmp
memory/4124-142-0x0000000005F00000-0x0000000005F92000-memory.dmp
memory/4124-143-0x000000003B3E0000-0x000000003B984000-memory.dmp
memory/4436-155-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4436-154-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4448-138-0x0000000005E20000-0x0000000005E86000-memory.dmp
memory/4448-141-0x0000000006950000-0x000000000696A000-memory.dmp
memory/4448-140-0x0000000007AC0000-0x000000000813A000-memory.dmp
memory/4448-139-0x0000000006450000-0x000000000646E000-memory.dmp
memory/4448-137-0x0000000005D40000-0x0000000005DA6000-memory.dmp
memory/4448-136-0x0000000005560000-0x0000000005B88000-memory.dmp
memory/4448-135-0x0000000004E90000-0x0000000004EC6000-memory.dmp
memory/4640-152-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4644-153-0x0000000000400000-0x0000000000457000-memory.dmp