Analysis
- max time kernel
58s - max time network
34s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
04/11/2026, 20:05
General
- Target d72d4088a8a48857e657d4d3a25417e1d5d62ea46f7efd398baa93d720f3855b.exe
- Size 1.1MB
- Sample261104-yvbwlsvsay
- SHA256 d72d4088a8a48857e657d4d3a25417e1d5d62ea46f7efd398baa93d720f3855b
Malware Config
Extracted
-
remcos
-
7.3.1 Pro
-
RemoteHost
-
172.94.15.100:6075
-
audio_folder
MicRecords
-
audio_path
ApplicationPath
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
MS-Office.exe
-
copy_folder
MS-Office
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
true
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-48KJVO
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Family: 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.
- Executes dropped EXE 1 IoCs
- Adds Run key to start application 2 TTPs 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\d72d4088a8a48857e657d4d3a25417e1d5d62ea46f7efd398baa93d720f3855b.exe"C:\Users\Admin\AppData\Local\Temp\d72d4088a8a48857e657d4d3a25417e1d5d62ea46f7efd398baa93d720f3855b.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\d72d4088a8a48857e657d4d3a25417e1d5d62ea46f7efd398baa93d720f3855b.exe"C:\Users\Admin\AppData\Local\Temp\d72d4088a8a48857e657d4d3a25417e1d5d62ea46f7efd398baa93d720f3855b.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\ProgramData\MS-Office\MS-Office.exe"C:\ProgramData\MS-Office\MS-Office.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
MS-Office.exe
memory/1620-10-0x0000000000400000-0x0000000000490000-memory.dmp
memory/1620-26-0x0000000000400000-0x0000000000490000-memory.dmp
memory/1620-14-0x0000000000400000-0x0000000000490000-memory.dmp
memory/1620-13-0x0000000000400000-0x0000000000490000-memory.dmp
memory/1620-11-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3812-4-0x0000000004BE0000-0x0000000004BEA000-memory.dmp
memory/3812-7-0x00000000064D0000-0x0000000006598000-memory.dmp
memory/3812-8-0x0000000008190000-0x00000000086BC000-memory.dmp
memory/3812-9-0x00000000086C0000-0x0000000008B8C000-memory.dmp
memory/3812-6-0x0000000006430000-0x00000000064CC000-memory.dmp
memory/3812-5-0x0000000005FB0000-0x0000000005FCC000-memory.dmp
memory/3812-0-0x0000000000020000-0x000000000014A000-memory.dmp
memory/3812-3-0x0000000004C70000-0x0000000004C80000-memory.dmp
memory/3812-2-0x0000000004B20000-0x0000000004BB2000-memory.dmp
memory/3812-1-0x0000000005180000-0x0000000005724000-memory.dmp
memory/4296-27-0x00000000055D0000-0x00000000055E0000-memory.dmp
memory/4296-28-0x00000000055D0000-0x00000000055E0000-memory.dmp