remcos | 50b6b3c9a40900a6dff49c866c0c82d6b3a6193e4a475828b00900e1e094884d

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
09/11/2026, 18:17

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General

Target
hh.exe
Size 644KB
Sample261109-wxaefsdv7v
SHA256 50b6b3c9a40900a6dff49c866c0c82d6b3a6193e4a475828b00900e1e094884d
MD5 8b5d0244920c76283bf483247fd8b8fd
SHA1 202abc9e80fcdb73045505f597833161cfadcdd5
SHA512 3183fd52dc231dc7dbca0925105df53d126847f67ebeee4c72da12612e1005211bb95f123e9615166ecfe5f6cacdfea15df06292f0c76fe8fc86d3bd9f7013dc
SSDEEP 12288:5IfxS5XkH4nOqwitNfuquCwgs69gy3V5v+BNyo3PoL5aDz:e5GXkH4nnwitNfuq9wgs3y3V5vgNyo3E
TLSH
T140E46D59A39402F8D0B7C135C982953BE7B2BC065571472F03E70E9B2F276A16F3AB16
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

au88vip2.online:8080
api.au88vip2.online:2404
c2.au88vip2.online:2404
byg.au88vip2.online:2404
au88vip2.online:80
au88vip2.online:443
au88vip2.online:8843

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-6PVK1A
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 56 IoCs

Network activity triggered a Suricata alert

suricata remcos

flow	pid	Process
50	4704	WinService.exe
50	4704	WinService.exe
56	4704	WinService.exe
56	4704	WinService.exe
67	4704	WinService.exe
67	4704	WinService.exe
85	4704	WinService.exe
85	4704	WinService.exe
77	4704	WinService.exe
77	4704	WinService.exe
72	4704	WinService.exe
72	4704	WinService.exe
60	4704	WinService.exe
60	4704	WinService.exe
24	4704	WinService.exe
24	4704	WinService.exe
26	4704	WinService.exe
26	4704	WinService.exe
29	4704	WinService.exe
29	4704	WinService.exe
44	4704	WinService.exe
44	4704	WinService.exe
73	4704	WinService.exe
73	4704	WinService.exe
69	4704	WinService.exe
69	4704	WinService.exe
80	4704	WinService.exe
80	4704	WinService.exe
49	4704	WinService.exe
49	4704	WinService.exe
54	4704	WinService.exe
54	4704	WinService.exe
59	4704	WinService.exe
59	4704	WinService.exe
75	4704	WinService.exe
75	4704	WinService.exe
89	4704	WinService.exe
89	4704	WinService.exe
88	4704	WinService.exe
88	4704	WinService.exe
81	4704	WinService.exe
81	4704	WinService.exe
11	4704	WinService.exe
11	4704	WinService.exe
13	4704	WinService.exe
13	4704	WinService.exe
30	4704	WinService.exe
30	4704	WinService.exe
46	4704	WinService.exe
46	4704	WinService.exe
83	4704	WinService.exe
83	4704	WinService.exe
8	4704	WinService.exe
8	4704	WinService.exe
6	4704	WinService.exe
6	4704	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Rmc-6PVK1A = "\"C:\\ProgramData\\Update\\WinService.exe\""	hh.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-6PVK1A = "\"C:\\ProgramData\\Update\\WinService.exe\""	WinService.exe
Key created	\REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\	hh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-939655444-3071939294-1401108526-1000\Control Panel\International\Geo\Nation	hh.exe

Executes dropped EXE 1 IoCs

pid	Process
4704	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\USER\S-1-5-21-939655444-3071939294-1401108526-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-6PVK1A = "\"C:\\ProgramData\\Update\\WinService.exe\""	hh.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-6PVK1A = "\"C:\\ProgramData\\Update\\WinService.exe\""	hh.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-939655444-3071939294-1401108526-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-6PVK1A = "\"C:\\ProgramData\\Update\\WinService.exe\""	WinService.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-6PVK1A = "\"C:\\ProgramData\\Update\\WinService.exe\""	WinService.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
4704	WinService.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	3120	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	3120	AUDIODG.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4704	WinService.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
4704	WinService.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 3324 wrote to memory of 4704	3324	hh.exe	85

C:\Users\Admin\AppData\Local\Temp\hh.exe
"C:\Users\Admin\AppData\Local\Temp\hh.exe"
1⤵
- Adds policy Run key to start application
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3324
- 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:4704

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x4d8 0x310
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3120

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

Query Registry

T1012

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 50b6b3c9a40900a6dff49c866c0c82d6b3a6193e4a475828b00900e1e094884d
MD5 8b5d0244920c76283bf483247fd8b8fd
SHA1 202abc9e80fcdb73045505f597833161cfadcdd5
SHA512 3183fd52dc231dc7dbca0925105df53d126847f67ebeee4c72da12612e1005211bb95f123e9615166ecfe5f6cacdfea15df06292f0c76fe8fc86d3bd9f7013dc
SSDEEP 12288:5IfxS5XkH4nOqwitNfuquCwgs69gy3V5v+BNyo3PoL5aDz:e5GXkH4nnwitNfuq9wgs3y3V5vgNyo3E
TLSH
T140E46D59A39402F8D0B7C135C982953BE7B2BC065571472F03E70E9B2F276A16F3AB16
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