remcos | 0afcda3401bda6b5609ea1d77149c3b170df8f24fda018dc7afb41778e950112

Analysis

max time kernel
149s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
01/06/2026, 23:03

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General

Target
tmp6qo3nz2w.exe
Size 1.5MB
Sample260601-217f9agy2v
SHA256 0afcda3401bda6b5609ea1d77149c3b170df8f24fda018dc7afb41778e950112
MD5 ed05279dcd88434b44e5c82f9a008db8
SHA1 c12c1ff43db833eac8ee9a3e3888601748ef8ae1
SHA512 e92f65e82fdc8392f5a2038e62768e37f9ab7fbc503159edab1a90b4d00660514cda34a8b0992fbc120ee95d5763437c2e3a027af181adecd9b3bd751238be32
SSDEEP 24576:zaTg0wZ14X27uUL3VM0kd+rkhfMsjgkAj2JE06J5N0Fi:+Tg3ZOcuUL3xAx/8b2S7Z0c
TLSH
T10B7523FA8E706892D5BD463205AF0F6D75F54FF37A14AC4311713D2A2F3A267A920A1C
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

chinemerem discovery execution remcos persistence rat

Malware Config

Extracted

Family

remcos

Version

2.2.2 Pro

Botnet

chinemerem

remcoss.onmypc.org:3765

Attributes

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

Family: Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Executes dropped EXE 6 IoCs

pid	Process
2616	AboutSettingsHandlers.exe
1424	AboutSettingsHandlers.exe
2440	AboutSettingsHandlers.exe
4608	AboutSettingsHandlers.exe
1772	AboutSettingsHandlers.exe
2868	AboutSettingsHandlers.exe

AutoIT Executable 9 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral3/memory/4692-16-0x0000000000DE0000-0x0000000000F69000-memory.dmp	autoit_exe
behavioral3/memory/4692-21-0x0000000000DE0000-0x0000000000F69000-memory.dmp	autoit_exe
behavioral3/memory/2616-35-0x0000000000DE0000-0x0000000000F69000-memory.dmp	autoit_exe
behavioral3/memory/2616-38-0x0000000000DE0000-0x0000000000F69000-memory.dmp	autoit_exe
behavioral3/memory/2440-51-0x0000000000DE0000-0x0000000000F69000-memory.dmp	autoit_exe
behavioral3/memory/2440-53-0x0000000000DE0000-0x0000000000F69000-memory.dmp	autoit_exe
behavioral3/memory/2440-54-0x0000000000DE0000-0x0000000000F69000-memory.dmp	autoit_exe
behavioral3/memory/1772-69-0x0000000000DE0000-0x0000000000F69000-memory.dmp	autoit_exe
behavioral3/memory/1772-71-0x0000000000DE0000-0x0000000000F69000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4692 set thread context of 3352	4692	tmp6qo3nz2w.exe	80
PID 2616 set thread context of 1424	2616	AboutSettingsHandlers.exe	85
PID 2440 set thread context of 4608	2440	AboutSettingsHandlers.exe	89
PID 1772 set thread context of 2868	1772	AboutSettingsHandlers.exe	93

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tmp6qo3nz2w.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tmp6qo3nz2w.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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AboutSettingsHandlers.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 4 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2016	schtasks.exe
2352	schtasks.exe
4412	schtasks.exe
1664	schtasks.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3352	tmp6qo3nz2w.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4692 wrote to memory of 3352	4692	tmp6qo3nz2w.exe	80
PID 4692 wrote to memory of 3352	4692	tmp6qo3nz2w.exe	80
PID 4692 wrote to memory of 2016	4692	tmp6qo3nz2w.exe	81
PID 2616 wrote to memory of 1424	2616	AboutSettingsHandlers.exe	85
PID 2616 wrote to memory of 1424	2616	AboutSettingsHandlers.exe	85
PID 2616 wrote to memory of 2352	2616	AboutSettingsHandlers.exe	86
PID 2440 wrote to memory of 4608	2440	AboutSettingsHandlers.exe	89
PID 2440 wrote to memory of 4608	2440	AboutSettingsHandlers.exe	89
PID 2440 wrote to memory of 4412	2440	AboutSettingsHandlers.exe	90
PID 1772 wrote to memory of 2868	1772	AboutSettingsHandlers.exe	93
PID 1772 wrote to memory of 2868	1772	AboutSettingsHandlers.exe	93
PID 1772 wrote to memory of 1664	1772	AboutSettingsHandlers.exe	94

C:\Users\Admin\AppData\Local\Temp\tmp6qo3nz2w.exe
"C:\Users\Admin\AppData\Local\Temp\tmp6qo3nz2w.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4692
- C:\Users\Admin\AppData\Local\Temp\tmp6qo3nz2w.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp6qo3nz2w.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:3352
- 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 /F
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2016

C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2616
- C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
  "C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"
  2⤵
  - Executes dropped EXE
  PID:1424
- 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 /F
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2352

C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2440
- C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
  "C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"
  2⤵
  - Executes dropped EXE
  PID:4608
- 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 /F
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4412

C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1772
- C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
  "C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"
  2⤵
  - Executes dropped EXE
  PID:2868
- 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 /F
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1664

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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AboutSettingsHandlers.exe

Path C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
Size 1.5MB
SHA256 276ec32b9689ae4b4555457333e9c6e8b17fec8a088835ae82bd7784ff2289a4
MD5 1ffa8416ae6dbfa8405e581e10f4ddae
SHA1 b9d9a22d26c6ff7bfa9bae010ceb64852cee2d44
SHA512 c480c053696b6cc2df1f6bd61f80ae7d03aff54403fa7843306884c450f4b77c4ecd0b730819a2772483cc14b08cdd2adaf617c0b872a86c8b4642028f0363c2
SSDEEP 24576:zaTg0wZ14X27uUL3VM0kd+rkhfMsjgkAj2JE06J5N0FP:+Tg3ZOcuUL3xAx/8b2S7Z0t
TLSH
T1FE7523FA8E706892D5BD463205AF0F6D75F54FF37A14AC4311713D2A2F3A267A920A1C
MD5 SHA1 SHA512 SSDEEP TLSH

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logs.dat

Path C:\Users\Admin\AppData\Roaming\remcos\logs.dat
Size 79B
SHA256 49c3c7e34f461ccd5499370be371ee1fb478899e54d8096c3bf16dce12ed2f7d
MD5 7b02b3c6f6303223e14df06d663fa1be
SHA1 b312616d4a7e47b3d44abde7fd7ed31a8b9f650e
SHA512 93306d4c02336dc36ebf7f818955c71af3917327e7e8e3c23a3dc075124bc7312d720a28a2ca3b48dcbe4f0d1de7f9893f4bfb8ee6ebe42447e98cb76e3bbf03
TLSH
T1C0A0125592259980101064E0614C31D6904A01643166491561015B084288111B980251
MD5 SHA1 SHA512 TLSH

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memory/1772-71-0x0000000000DE0000-0x0000000000F69000-memory.dmp

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memory/1772-69-0x0000000000DE0000-0x0000000000F69000-memory.dmp

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memory/2440-54-0x0000000000DE0000-0x0000000000F69000-memory.dmp

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memory/2440-53-0x0000000000DE0000-0x0000000000F69000-memory.dmp

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memory/2440-51-0x0000000000DE0000-0x0000000000F69000-memory.dmp

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memory/2616-35-0x0000000000DE0000-0x0000000000F69000-memory.dmp

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memory/2616-38-0x0000000000DE0000-0x0000000000F69000-memory.dmp

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memory/2616-24-0x0000000000920000-0x0000000000923000-memory.dmp

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memory/2616-34-0x0000000000920000-0x0000000000923000-memory.dmp

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memory/3352-14-0x00000000000C0000-0x00000000000E0000-memory.dmp

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memory/3352-11-0x00000000000C0000-0x00000000000E0000-memory.dmp

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memory/3352-10-0x00000000000C0000-0x00000000000E0000-memory.dmp

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memory/3352-3-0x00000000000C0000-0x00000000000E0000-memory.dmp

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memory/4692-2-0x0000000001020000-0x0000000001021000-memory.dmp

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memory/4692-1-0x0000000000D60000-0x0000000000D63000-memory.dmp

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memory/4692-16-0x0000000000DE0000-0x0000000000F69000-memory.dmp

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memory/4692-0-0x0000000000DE0000-0x0000000000F69000-memory.dmp

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memory/4692-15-0x0000000000D60000-0x0000000000D63000-memory.dmp

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memory/4692-21-0x0000000000DE0000-0x0000000000F69000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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