Analysis
- max time kernel
60s - max time network
55s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260617-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
28/06/2026, 20:16
Static task
static1
Behavioral task
behavioral1
Sample
a6f454fb07b16d4831378945c8d6d5b5d9cfea0c3dd956fa5482eb41fd94238f.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
a6f454fb07b16d4831378945c8d6d5b5d9cfea0c3dd956fa5482eb41fd94238f.exe
Resource
win11ltsc2024-20260617-en
General
- Target a6f454fb07b16d4831378945c8d6d5b5d9cfea0c3dd956fa5482eb41fd94238f.exe
- Size 1.5MB
- Sample260628-y18grsd13q
- SHA256 a6f454fb07b16d4831378945c8d6d5b5d9cfea0c3dd956fa5482eb41fd94238f
- MD5 b3c96bd6857ca0a360f7c4b3a2f993ac
- SHA1 0d9a2ff2b3c9217b790dd62cbe1cf6c1fab97d41
- SHA512 29f94a0e37f6c5c1a472b6510c355710c60a99b3af8a4e5fd95b8b8c294a628f5a9aa00cc01e184f2d3c967d10ec3454325d2fe4ba730c79327991c1e569cd72
- SSDEEP 24576:zaTg0wZ14X27uUL3VM0kd+rkhfMsjgkAj2JE06J5N0Fj:+Tg3ZOcuUL3xAx/8b2S7Z0Z
- TLSH T1BE7523FA8E706892D5BD463205AF0F6D75F54FB37A14AC4311713D2A3E3A267A920A1C
- 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 3248 AboutSettingsHandlers.exe 1620 AboutSettingsHandlers.exe 4764 AboutSettingsHandlers.exe - AutoIT Executable 7 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral2/memory/5884-15-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/5884-18-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/5884-20-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/3248-34-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/4764-37-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/3248-38-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/3248-39-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 5884 set thread context of 3756 5884 a6f454fb07b16d4831378945c8d6d5b5d9cfea0c3dd956fa5482eb41fd94238f.exe 89 PID 3248 set thread context of 1620 3248 AboutSettingsHandlers.exe 95 - 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 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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a6f454fb07b16d4831378945c8d6d5b5d9cfea0c3dd956fa5482eb41fd94238f.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a6f454fb07b16d4831378945c8d6d5b5d9cfea0c3dd956fa5482eb41fd94238f.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 1124 schtasks.exe 2780 schtasks.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3756 a6f454fb07b16d4831378945c8d6d5b5d9cfea0c3dd956fa5482eb41fd94238f.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 5884 wrote to memory of 3756 5884 a6f454fb07b16d4831378945c8d6d5b5d9cfea0c3dd956fa5482eb41fd94238f.exe 89 PID 5884 wrote to memory of 3756 5884 a6f454fb07b16d4831378945c8d6d5b5d9cfea0c3dd956fa5482eb41fd94238f.exe 89 PID 5884 wrote to memory of 1124 5884 a6f454fb07b16d4831378945c8d6d5b5d9cfea0c3dd956fa5482eb41fd94238f.exe 90 PID 3248 wrote to memory of 1620 3248 AboutSettingsHandlers.exe 95 PID 3248 wrote to memory of 1620 3248 AboutSettingsHandlers.exe 95 PID 3248 wrote to memory of 2780 3248 AboutSettingsHandlers.exe 97
Processes
-
C:\Users\Admin\AppData\Local\Temp\a6f454fb07b16d4831378945c8d6d5b5d9cfea0c3dd956fa5482eb41fd94238f.exe"C:\Users\Admin\AppData\Local\Temp\a6f454fb07b16d4831378945c8d6d5b5d9cfea0c3dd956fa5482eb41fd94238f.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5884 -
C:\Users\Admin\AppData\Local\Temp\a6f454fb07b16d4831378945c8d6d5b5d9cfea0c3dd956fa5482eb41fd94238f.exe"C:\Users\Admin\AppData\Local\Temp\a6f454fb07b16d4831378945c8d6d5b5d9cfea0c3dd956fa5482eb41fd94238f.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:3756
-
-
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:1124
-
-
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:3248 -
C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"2⤵
- Executes dropped EXE
PID:1620
-
-
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:2780
-
-
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:4764
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 73512346203a2104b6144604382a3f05c26f68955172ce971418fb25b0930b6b
- MD5 93034049a601bdf6f382377a4ff154da
- SHA1 dba62a41ce922b8c6ab3ab0838dc512f53160fe8
- SHA512 5f48f7dcba89f3ff985be641653238a4dc6f82af614cea6f723ff15b50259a70c273d906eea1871f4c3c52db06bd8f2d05dee8d314de835b78adfe96f45dec6d
- SSDEEP 24576:zaTg0wZ14X27uUL3VM0kd+rkhfMsjgkAj2JE06J5N0FM:+Tg3ZOcuUL3xAx/8b2S7Z0a
- TLSH T1387523FA8E706892D5BD463205AF0F6D75F54FB37A14AC4311713D2A3E3A267A920A1C
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\remcos\logs.dat
- Size 56B
- SHA256 ea6e075da3df276e9e2dd12c886170be99666030cfd2e8c57f2d9fda6281159c
- MD5 595d8ba21ff4a5f64ce42d8a041a2764
- SHA1 3a430ae70e9c3ae6ff10ee28076a784ba30acb79
- SHA512 93fc6cd7a0c1d7ad76e8434c96ee74661ed109a3509fcdff9ca37fa0c874c60d3f93edfd6ba40a054f68276bce2f3f4faea1a8744948a9052abfda0d62936543
- TLSH T1D59002606322BA19011119707489B396A14617607A564279328697094294451B6C9553
- MD5 SHA1 SHA512 TLSH