remcos | ed6a8a73898b2185d8da7d216bcf43e7555ab49ca1500dc8aa663581d6d2f4e9

Analysis

max time kernel
148s
max time network
147s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
30/10/2026, 02:09

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General

Target
ok.exe
Size 644KB
Sample261030-ck7pmsgw6z
SHA256 ed6a8a73898b2185d8da7d216bcf43e7555ab49ca1500dc8aa663581d6d2f4e9
MD5 e4339cb176b82aeaa5f877e9987c2b4c
SHA1 b24b351026e5f6a354a6f6c83428c67caf9b6b78
SHA512 5ad5b97a674858c315d375a83b9c4a73188e4f02d4a0c046e3412467dabca958171eed6254371920e7cd61db3b487a9913a8a81d53317686e3398fa58ede3fde
SSDEEP 12288:RIfxS5XkH4nOqwitNfuquCwgs69gy3V5v+BNyo3PoL5aDz:25GXkH4nnwitNfuq9wgs3y3V5vgNyo3E
TLSH
T1E6E46D59A39402F8D0B7C135C982953BE7B2BC065571472F03E70E9B2F276A16F3AB16
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

remotehost discovery remcos persistence rat suricata

Malware Config

Extracted

Family

remcos

Version

7.3.1 Pro

Botnet

RemoteHost

qh88si.com:8080
backdoor.qh88si.com:2404
c2.qh88si.com:2404
api.qh88si.com:2404
104.26.3.72:80
104.26.2.72:80
172.67.69.120:80
qh88si.com:80
qh88si.com:2404
qh88si.com:443
qh88si.com:8443

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
WinService.exe
copy_folder
Update
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-YYR3US
screenshot_crypt
false
screenshot_flag
true
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
take_screenshot_option
true
take_screenshot_time
5
take_screenshot_title
facebook;discord;telegram

Signatures

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

Suricata alert: REMCOS RAT Malware Outbound C2 Communication 64 IoCs

Network activity triggered a Suricata alert

suricata remcos

flow	pid	Process
45	5060	WinService.exe
45	5060	WinService.exe
53	5060	WinService.exe
53	5060	WinService.exe
19	5060	WinService.exe
19	5060	WinService.exe
23	5060	WinService.exe
23	5060	WinService.exe
27	5060	WinService.exe
27	5060	WinService.exe
48	5060	WinService.exe
48	5060	WinService.exe
38	5060	WinService.exe
38	5060	WinService.exe
52	5060	WinService.exe
52	5060	WinService.exe
15	5060	WinService.exe
15	5060	WinService.exe
24	5060	WinService.exe
24	5060	WinService.exe
29	5060	WinService.exe
29	5060	WinService.exe
44	5060	WinService.exe
44	5060	WinService.exe
42	5060	WinService.exe
42	5060	WinService.exe
51	5060	WinService.exe
51	5060	WinService.exe
59	5060	WinService.exe
59	5060	WinService.exe
9	5060	WinService.exe
9	5060	WinService.exe
40	5060	WinService.exe
40	5060	WinService.exe
54	5060	WinService.exe
54	5060	WinService.exe
61	5060	WinService.exe
61	5060	WinService.exe
46	5060	WinService.exe
46	5060	WinService.exe
3	5060	WinService.exe
3	5060	WinService.exe
6	5060	WinService.exe
6	5060	WinService.exe
18	5060	WinService.exe
18	5060	WinService.exe
34	5060	WinService.exe
34	5060	WinService.exe
49	5060	WinService.exe
49	5060	WinService.exe
8	5060	WinService.exe
8	5060	WinService.exe
17	5060	WinService.exe
17	5060	WinService.exe
21	5060	WinService.exe
21	5060	WinService.exe
28	5060	WinService.exe
28	5060	WinService.exe
25	5060	WinService.exe
25	5060	WinService.exe
33	5060	WinService.exe
33	5060	WinService.exe
56	5060	WinService.exe
56	5060	WinService.exe

Adds policy Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\	ok.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Rmc-YYR3US = "\"C:\\ProgramData\\Update\\WinService.exe\""	ok.exe
Key created	\REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\	WinService.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Rmc-YYR3US = "\"C:\\ProgramData\\Update\\WinService.exe\""	WinService.exe

Executes dropped EXE 1 IoCs

pid	Process
5060	WinService.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-YYR3US = "\"C:\\ProgramData\\Update\\WinService.exe\""	ok.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-YYR3US = "\"C:\\ProgramData\\Update\\WinService.exe\""	WinService.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-YYR3US = "\"C:\\ProgramData\\Update\\WinService.exe\""	WinService.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-YYR3US = "\"C:\\ProgramData\\Update\\WinService.exe\""	ok.exe

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

System Information Discovery
T1082

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	WinService.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	WinService.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
5060	WinService.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	4328	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	4328	AUDIODG.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5060	WinService.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
5060	WinService.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 2768 wrote to memory of 5060	2768	ok.exe	89

C:\Users\Admin\AppData\Local\Temp\ok.exe
"C:\Users\Admin\AppData\Local\Temp\ok.exe"
1⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2768
- C:\ProgramData\Update\WinService.exe
  "C:\ProgramData\Update\WinService.exe"
  2⤵
  - Suricata alert: REMCOS RAT Malware Outbound C2 Communication
  - Adds policy Run key to start application
  - Executes dropped EXE
  - Adds Run key to start application
  - Reads the TCP/IP host and domain name from the registry
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:5060

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x00000000000004F8 0x00000000000004F4
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4328

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

WinService.exe

Path C:\ProgramData\Update\WinService.exe
Size 644KB
SHA256 ed6a8a73898b2185d8da7d216bcf43e7555ab49ca1500dc8aa663581d6d2f4e9
MD5 e4339cb176b82aeaa5f877e9987c2b4c
SHA1 b24b351026e5f6a354a6f6c83428c67caf9b6b78
SHA512 5ad5b97a674858c315d375a83b9c4a73188e4f02d4a0c046e3412467dabca958171eed6254371920e7cd61db3b487a9913a8a81d53317686e3398fa58ede3fde
SSDEEP 12288:RIfxS5XkH4nOqwitNfuquCwgs69gy3V5v+BNyo3PoL5aDz:25GXkH4nnwitNfuq9wgs3y3V5vgNyo3E
TLSH
T1E6E46D59A39402F8D0B7C135C982953BE7B2BC065571472F03E70E9B2F276A16F3AB16
MD5 SHA1 SHA512 SSDEEP TLSH

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads