Analysis
- max time kernel
148s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
04/10/2022, 11:12
General
- Target ATTACHEMENT___ PART SHIPMENT-FEDEX- cargo Arrival Notification Import Track No 283738293737 MR V FKUMAR.exe
- Size 1.4MB
- Sample221004-natwksbacl
- SHA256 3309420da4cc8e91be71bd96a482fd2b544e2b1dd0d5a8e075b3cfe9bac1957f
Malware Config
Extracted
-
remcos
-
RemoteHost Reff
-
45.66.151.212:1960
-
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-62UVZC
-
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.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 18 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\ATTACHEMENT___ PART SHIPMENT-FEDEX- cargo Arrival Notification Import Track No 283738293737 MR V FKUMAR.exe"C:\Users\Admin\AppData\Local\Temp\ATTACHEMENT___ PART SHIPMENT-FEDEX- cargo Arrival Notification Import Track No 283738293737 MR V FKUMAR.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TXLBIQL.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TXLBIQL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6F83.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\ATTACHEMENT___ PART SHIPMENT-FEDEX- cargo Arrival Notification Import Track No 283738293737 MR V FKUMAR.exe"C:\Users\Admin\AppData\Local\Temp\ATTACHEMENT___ PART SHIPMENT-FEDEX- cargo Arrival Notification Import Track No 283738293737 MR V FKUMAR.exe"2⤵
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
tmp6F83.tmp
memory/2288-135-0x0000000005770000-0x000000000577A000-memory.dmp
memory/2288-132-0x0000000000C60000-0x0000000000DC4000-memory.dmp
memory/2288-136-0x0000000009080000-0x000000000911C000-memory.dmp
memory/2288-137-0x0000000009840000-0x00000000098A6000-memory.dmp
memory/2288-134-0x00000000057D0000-0x0000000005862000-memory.dmp
memory/2288-133-0x0000000005D80000-0x0000000006324000-memory.dmp
memory/2948-161-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2948-150-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2948-148-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2948-144-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2948-146-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3732-147-0x0000000004CA0000-0x0000000004D06000-memory.dmp
memory/3732-153-0x0000000006180000-0x000000000619E000-memory.dmp
memory/3732-142-0x0000000004FA0000-0x00000000055C8000-memory.dmp
memory/3732-149-0x0000000005BD0000-0x0000000005BEE000-memory.dmp
memory/3732-140-0x0000000002280000-0x00000000022B6000-memory.dmp
memory/3732-151-0x0000000006D90000-0x0000000006DC2000-memory.dmp
memory/3732-152-0x00000000737F0000-0x000000007383C000-memory.dmp
memory/3732-145-0x0000000004C00000-0x0000000004C22000-memory.dmp
memory/3732-154-0x0000000007520000-0x0000000007B9A000-memory.dmp
memory/3732-155-0x0000000006ED0000-0x0000000006EEA000-memory.dmp
memory/3732-156-0x0000000006F40000-0x0000000006F4A000-memory.dmp
memory/3732-157-0x0000000007150000-0x00000000071E6000-memory.dmp
memory/3732-158-0x0000000007100000-0x000000000710E000-memory.dmp
memory/3732-159-0x0000000007210000-0x000000000722A000-memory.dmp
memory/3732-160-0x00000000071F0000-0x00000000071F8000-memory.dmp