Analysis
- max time kernel
60s - max time network
37s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260706-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
06/07/2026, 20:09
Static task
static1
Behavioral task
behavioral1
Sample
4d707f1b43e4c70065c8b06e20f4d8e023e255838ece15a0a09c8f6ee79e4c83.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
4d707f1b43e4c70065c8b06e20f4d8e023e255838ece15a0a09c8f6ee79e4c83.exe
Resource
win11ltsc2024-20260706-en
General
- Target 4d707f1b43e4c70065c8b06e20f4d8e023e255838ece15a0a09c8f6ee79e4c83.exe
- Size 1.5MB
- Sample260706-yxdszsc16w
- SHA256 4d707f1b43e4c70065c8b06e20f4d8e023e255838ece15a0a09c8f6ee79e4c83
- MD5 755495aa8bf2ce99077c2d5a1eac014d
- SHA1 7edd15d80312cbad18ac13bffba841b8edaefa88
- SHA512 08f543ea17ca1307aed12752d21f900256f3ae55f2e1e80f1da7f321df634ee0992d15cb5f897e5a3727c4fef0af9da01b8f5eeb07d8d261d1f60874b6522956
- SSDEEP 24576:zaTg0wZ14X27uUL3VM0kd+rkhfMsjgkAj2JE06J5N0Fa:+Tg3ZOcuUL3xAx/8b2S7Z00
- TLSH T1AA7523FA8E706892D5BD463205AF0F6D75F54FF37A14AC4311713D2A3E3A267A920A1C
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
remcos
-
2.2.2 Pro
-
chinemerem
-
remcoss.onmypc.org:3765
-
audio_folder
audio
-
audio_path
%AppData%
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
5
-
copy_file
remcos.exe
-
copy_folder
remcos
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
true
-
install_flag
false
-
install_path
%AppData%
-
keylog_crypt
true
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
keylog_path
%AppData%
-
mouse_option
false
-
mutex
r-8ET8H0
-
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
- Executes dropped EXE 3 IoCs
pid Process 2076 AboutSettingsHandlers.exe 4748 AboutSettingsHandlers.exe 5644 AboutSettingsHandlers.exe - AutoIT Executable 7 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral2/memory/5552-16-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/5552-19-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/5552-21-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/4748-35-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/2076-37-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/2076-39-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/2076-41-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 5552 set thread context of 4256 5552 4d707f1b43e4c70065c8b06e20f4d8e023e255838ece15a0a09c8f6ee79e4c83.exe 87 PID 2076 set thread context of 5644 2076 AboutSettingsHandlers.exe 93 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 6 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4d707f1b43e4c70065c8b06e20f4d8e023e255838ece15a0a09c8f6ee79e4c83.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4d707f1b43e4c70065c8b06e20f4d8e023e255838ece15a0a09c8f6ee79e4c83.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AboutSettingsHandlers.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AboutSettingsHandlers.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe - Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 5476 schtasks.exe 4936 schtasks.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4256 4d707f1b43e4c70065c8b06e20f4d8e023e255838ece15a0a09c8f6ee79e4c83.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 5552 wrote to memory of 4256 5552 4d707f1b43e4c70065c8b06e20f4d8e023e255838ece15a0a09c8f6ee79e4c83.exe 87 PID 5552 wrote to memory of 4256 5552 4d707f1b43e4c70065c8b06e20f4d8e023e255838ece15a0a09c8f6ee79e4c83.exe 87 PID 5552 wrote to memory of 5476 5552 4d707f1b43e4c70065c8b06e20f4d8e023e255838ece15a0a09c8f6ee79e4c83.exe 88 PID 2076 wrote to memory of 5644 2076 AboutSettingsHandlers.exe 93 PID 2076 wrote to memory of 5644 2076 AboutSettingsHandlers.exe 93 PID 2076 wrote to memory of 4936 2076 AboutSettingsHandlers.exe 94
Processes
-
C:\Users\Admin\AppData\Local\Temp\4d707f1b43e4c70065c8b06e20f4d8e023e255838ece15a0a09c8f6ee79e4c83.exe"C:\Users\Admin\AppData\Local\Temp\4d707f1b43e4c70065c8b06e20f4d8e023e255838ece15a0a09c8f6ee79e4c83.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5552 -
C:\Users\Admin\AppData\Local\Temp\4d707f1b43e4c70065c8b06e20f4d8e023e255838ece15a0a09c8f6ee79e4c83.exe"C:\Users\Admin\AppData\Local\Temp\4d707f1b43e4c70065c8b06e20f4d8e023e255838ece15a0a09c8f6ee79e4c83.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:4256
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\SysWOW64\schtasks.exe" /create /tn SystemSettingsAdminFlows /tr "C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe" /sc minute /mo 1 /F2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:5476
-
-
C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exeC:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2076 -
C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"2⤵
- Executes dropped EXE
PID:5644
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\SysWOW64\schtasks.exe" /create /tn SystemSettingsAdminFlows /tr "C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe" /sc minute /mo 1 /F2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:4936
-
-
C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4748
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
- Size 1.5MB
- SHA256 4e652ddd93194d53819de420ad7a9b366d73e551cfb75e5faf47f7b5d6f742fe
- MD5 87bfea0d47521f10674f8fb8b3637be9
- SHA1 ea7e0480533ddcf9d27a752a3fd65767a5d6f4ff
- SHA512 a214d9aa3728faaf23e91c72dcdafe8808872408b8886573612417ae38e58603f01a69ac472865317d224ef6145d03251c7f901654f4c2658dacd1d57c005eac
- SSDEEP 24576:zaTg0wZ14X27uUL3VM0kd+rkhfMsjgkAj2JE06J5N0FQ:+Tg3ZOcuUL3xAx/8b2S7Z0i
- TLSH T1A77523FA8E706892D5BD463205AF0F6D75F54FF37A14AC4311713D2A3E3A267A920A1C
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\remcos\logs.dat
- Size 79B
- SHA256 d83648f07b965211f27d6863582b4d432606f14a4dd91faf3fab2bf070a0ee96
- MD5 3158a78622d1c1f24b2aad5fe7283f9b
- SHA1 b30af1d0043cc658dc2b7703332908e4fbc08f83
- SHA512 7ae954c5c41463b288d9df03372869b058edcc03b52577d7d2cbb783f72d48bc7ad4d5b8623e3bf3ba0d34667a8623fb06ea896cb26a7ef270564c71f742195f
- TLSH T1D0A02447C331CD44001035F074CD30D7D44F001433774F3554014F0C034D00175C0111
- MD5 SHA1 SHA512 TLSH