Analysis
- max time kernel
60s - max time network
38s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
25/08/2026, 20:30
Static task
static1
Behavioral task
behavioral1
Sample
f63ab28d2640dfe097484f6a31ac4d9939a1bbe75d175c010387dffefd34a387.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
f63ab28d2640dfe097484f6a31ac4d9939a1bbe75d175c010387dffefd34a387.exe
Resource
win11ltsc2024-20260709-en
General
- Target f63ab28d2640dfe097484f6a31ac4d9939a1bbe75d175c010387dffefd34a387.exe
- Size 1.5MB
- Sample260825-zagrssvyfw
- SHA256 f63ab28d2640dfe097484f6a31ac4d9939a1bbe75d175c010387dffefd34a387
- MD5 4bfdbfdaf4da122851e0fb7b9d79b6ef
- SHA1 50739f70a3d7db9e5cc8f94771aaf1e3e7f146f5
- SHA512 fad2e52b2456e7c74f3b79c0004e0a368dbfbbdf4c9fee6217087572a162befc4ae6c2b8e9c9cd3be62494c304f1666fedf151283cc5bffd0481addf0c287d05
- SSDEEP 24576:zaTg0wZ14X27uUL3VM0kd+rkhfMsjgkAj2JE06J5N0Fu:+Tg3ZOcuUL3xAx/8b2S7Z0I
- TLSH T19C7523FA8E706892D5BD563205AF0F6D35F54FF37A14AC4311713D2A2F3A267A920A1C
- 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 2 IoCs
pid Process 5972 AboutSettingsHandlers.exe 4620 AboutSettingsHandlers.exe - AutoIT Executable 6 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral2/memory/3524-16-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/3524-19-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/3524-21-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/5972-34-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/5972-37-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/5972-38-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 3524 set thread context of 4788 3524 f63ab28d2640dfe097484f6a31ac4d9939a1bbe75d175c010387dffefd34a387.exe 89 PID 5972 set thread context of 4620 5972 AboutSettingsHandlers.exe 94 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 5 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 f63ab28d2640dfe097484f6a31ac4d9939a1bbe75d175c010387dffefd34a387.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f63ab28d2640dfe097484f6a31ac4d9939a1bbe75d175c010387dffefd34a387.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 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 3728 schtasks.exe 4412 schtasks.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4788 f63ab28d2640dfe097484f6a31ac4d9939a1bbe75d175c010387dffefd34a387.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3524 wrote to memory of 4788 3524 f63ab28d2640dfe097484f6a31ac4d9939a1bbe75d175c010387dffefd34a387.exe 89 PID 3524 wrote to memory of 4788 3524 f63ab28d2640dfe097484f6a31ac4d9939a1bbe75d175c010387dffefd34a387.exe 89 PID 3524 wrote to memory of 3728 3524 f63ab28d2640dfe097484f6a31ac4d9939a1bbe75d175c010387dffefd34a387.exe 90 PID 5972 wrote to memory of 4620 5972 AboutSettingsHandlers.exe 94 PID 5972 wrote to memory of 4620 5972 AboutSettingsHandlers.exe 94 PID 5972 wrote to memory of 4412 5972 AboutSettingsHandlers.exe 96
Processes
-
C:\Users\Admin\AppData\Local\Temp\f63ab28d2640dfe097484f6a31ac4d9939a1bbe75d175c010387dffefd34a387.exe"C:\Users\Admin\AppData\Local\Temp\f63ab28d2640dfe097484f6a31ac4d9939a1bbe75d175c010387dffefd34a387.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3524 -
C:\Users\Admin\AppData\Local\Temp\f63ab28d2640dfe097484f6a31ac4d9939a1bbe75d175c010387dffefd34a387.exe"C:\Users\Admin\AppData\Local\Temp\f63ab28d2640dfe097484f6a31ac4d9939a1bbe75d175c010387dffefd34a387.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:4788
-
-
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:3728
-
-
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:5972 -
C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"2⤵
- Executes dropped EXE
PID:4620
-
-
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:4412
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
- Size 1.5MB
- SHA256 6e69c31631c329788d6a4bf247c44b4bb5df8e298a8e46c8ec1197efe1cd78a8
- MD5 b938d0172923dd24dbe6d12830484bda
- SHA1 9082f4aa6579c27242260dc1f674d765c6401c7b
- SHA512 ca43808b9716d50f181a308a6eacbcfb58d8ca63b58dff3d1b5fa408bb020d396b2a4ec5ead67c32fe7eec929810f1dc9db99cc39615880fc5653507fb93e250
- SSDEEP 24576:zaTg0wZ14X27uUL3VM0kd+rkhfMsjgkAj2JE06J5N0FF:+Tg3ZOcuUL3xAx/8b2S7Z0/
- TLSH T17F7523FA8E706892D5BD563205AF0F6D35F54FF37A14AC4311713D2A2F3A267A920A1C
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\remcos\logs.dat
- Size 79B
- SHA256 f0c52cacd86262d83f3508b9ab23cbf9a416e5c248c294af3d5cf0a9c4c32c7d
- MD5 39ef73f5311b46484957b2fd9f7970dd
- SHA1 35e9ddc0c0f308270180d52f8da8a74e45d95d8e
- SHA512 7e582ed3afc88233cb0b13b6d0d7ca2b22bf9acf804231c6aacd2055ef51209a7d166550d3d69a2c4f60ac1b036e1655c6a25b5ee29cf1636ac909bc6ba97b32
- TLSH T141A0124982208E58202064F0744C3087514B042539660A1660414B0D035D0126580111
- MD5 SHA1 SHA512 TLSH