Analysis
- max time kernel
149s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
01/06/2026, 22:00
Static task
static1
Behavioral task
behavioral1
Sample
tmpzv700zdw.exe
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral2
Sample
tmpzv700zdw.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral3
Sample
tmpzv700zdw.exe
Resource
win11-20260513-en
General
- Target tmpzv700zdw.exe
- Size 1.5MB
- Sample260601-1wttxsf14z
- SHA256 53060a365f352b6baa63398774da7410843a01055c80a85452e239bd0170ed65
- MD5 d884c2eee01814a246769ca47e64e9d1
- SHA1 97717c4096aaf85b677b9e2cdaa8639ccad796c0
- SHA512 9d9d37af375dfe98900d29bea299b826936630b08bccc95f41c57fde1622d986a0cc7e4e63604694244ef339d17ff7dc6781f01053cb88efcd2d9aff475b2552
- SSDEEP 24576:zaTg0wZ14X27uUL3VM0kd+rkhfMsjgkAj2JE06J5N0F8:+Tg3ZOcuUL3xAx/8b2S7Z06
- TLSH T1BA7523FA8E706892D5BD463205AF0F6D75F54FF37A14AC4311713D2A2F3A267A920A1C
- 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
- Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000\Control Panel\International\Geo\Nation tmpzv700zdw.exe Key value queried \REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000\Control Panel\International\Geo\Nation AboutSettingsHandlers.exe Key value queried \REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000\Control Panel\International\Geo\Nation AboutSettingsHandlers.exe - Executes dropped EXE 6 IoCs
pid Process 1676 AboutSettingsHandlers.exe 4856 AboutSettingsHandlers.exe 3564 AboutSettingsHandlers.exe 1040 AboutSettingsHandlers.exe 964 AboutSettingsHandlers.exe 4404 AboutSettingsHandlers.exe - AutoIT Executable 8 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral2/memory/3764-15-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/3764-20-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/1676-36-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/3564-37-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/1676-39-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/1040-55-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/1040-57-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe behavioral2/memory/1040-58-0x0000000000DE0000-0x0000000000F69000-memory.dmp autoit_exe - Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 3764 set thread context of 2640 3764 tmpzv700zdw.exe 88 PID 1676 set thread context of 4856 1676 AboutSettingsHandlers.exe 97 PID 1040 set thread context of 964 1040 AboutSettingsHandlers.exe 116 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 9 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 tmpzv700zdw.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language tmpzv700zdw.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 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 AboutSettingsHandlers.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AboutSettingsHandlers.exe - Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3312 schtasks.exe 1376 schtasks.exe 468 schtasks.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2640 tmpzv700zdw.exe - Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 3764 wrote to memory of 2640 3764 tmpzv700zdw.exe 88 PID 3764 wrote to memory of 2640 3764 tmpzv700zdw.exe 88 PID 3764 wrote to memory of 3312 3764 tmpzv700zdw.exe 89 PID 1676 wrote to memory of 4856 1676 AboutSettingsHandlers.exe 97 PID 1676 wrote to memory of 4856 1676 AboutSettingsHandlers.exe 97 PID 1676 wrote to memory of 1376 1676 AboutSettingsHandlers.exe 106 PID 1040 wrote to memory of 964 1040 AboutSettingsHandlers.exe 116 PID 1040 wrote to memory of 964 1040 AboutSettingsHandlers.exe 116 PID 1040 wrote to memory of 468 1040 AboutSettingsHandlers.exe 117
Processes
-
C:\Users\Admin\AppData\Local\Temp\tmpzv700zdw.exe"C:\Users\Admin\AppData\Local\Temp\tmpzv700zdw.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3764 -
C:\Users\Admin\AppData\Local\Temp\tmpzv700zdw.exe"C:\Users\Admin\AppData\Local\Temp\tmpzv700zdw.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:2640
-
-
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:3312
-
-
C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exeC:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1676 -
C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"2⤵
- Executes dropped EXE
PID:4856
-
-
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:1376
-
-
C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exeC:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3564
-
C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exeC:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1040 -
C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"2⤵
- Executes dropped EXE
PID:964
-
-
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:468
-
-
C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exeC:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4404
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 8e7a7d157ba5362c8719f34165ec176f9bcf56669a8217edfe8a568bd0532824
- MD5 afa53844624e21235146dd18cacf50bb
- SHA1 837c1610314fa6b6f4719048866ee1369399ada2
- SHA512 6a7152ce47746605b580567b114bad257f9540f008042b7a5bea99a139ad5f80c83d1e3c5618201ce5bc2d8a3d92e67df719f334324ea1b0f4630de39dd7870c
- SSDEEP 24576:zaTg0wZ14X27uUL3VM0kd+rkhfMsjgkAj2JE06J5N0FM:+Tg3ZOcuUL3xAx/8b2S7Z0a
- TLSH T10C7523FA8E706892D5BD463205AF0F6D75F54FB37A14AC4311713D2A3F3A267A920A1C
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\remcos\logs.dat
- Size 79B
- SHA256 f176a5d4f6d31e51161d8b8445405d6010150104c8ac4548fcb4c223d87979b8
- MD5 8a8138d64b27a0f9c2fd51f5606e0424
- SHA1 eee7bb5a453cc5889288495b2fcd57f9810ce15e
- SHA512 6edb8e25ab3116115269326578444ebecc181c77fecae12a8bec79488297a95de0b5b1b2188a279bba28f3f29897670e5549e101f700f5c8cd85382dad8e6c75
- TLSH T1F4A0124692259950001125E0614830E69045021131A6460650014F0C8288011A680112
- MD5 SHA1 SHA512 TLSH