remcos | 228e9750bd981344fbe003f8ddec739388316291f6fdb951182c271faba994c1

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
26/10/2026, 01:59

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General

Target
2026-10-24_2b88d854ed352b5bff21bd057e8c81f2_cobalt-strike_coinminer_icedid_njrat_remcos_vidar.exe
Size 644KB
Sample261026-cec8vacy5m
SHA256 228e9750bd981344fbe003f8ddec739388316291f6fdb951182c271faba994c1
MD5 2b88d854ed352b5bff21bd057e8c81f2
SHA1 11dc07af5591142dcfd880981981fcae5ab278c0
SHA512 4ba017c072c10251b9e802e68ca489c24c8f68f293d5921bc4356fb9d203353d1b0bf52dae9455ddaa9c3ad54536d779a10372b043a44b3c9e2fa31e5e37faba
SSDEEP 12288:5IfxS5XkH4nOqwitNfuquCwgs69gy3V5v+BNyo3PoL5aDz:e5GXkH4nnwitNfuq9wgs3y3V5vgNyo3E
TLSH
T14AE46D59A39402F8D0B7C135C982953BE7B2BC065571472F03E70E9B2F276A16F3AB16
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

unifibra.net:8080
www.unifibra.net:8080
backdoor.unifibra.net:8080
c2.unifibra.net:8080
malware.unifibra.net:8080
api.unifibra.net:8080

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-DAGNDG
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
250	3852	WinService.exe
250	3852	WinService.exe
43	3852	WinService.exe
43	3852	WinService.exe
104	3852	WinService.exe
104	3852	WinService.exe
131	3852	WinService.exe
131	3852	WinService.exe
63	3852	WinService.exe
63	3852	WinService.exe
61	3852	WinService.exe
61	3852	WinService.exe
103	3852	WinService.exe
103	3852	WinService.exe
194	3852	WinService.exe
194	3852	WinService.exe
190	3852	WinService.exe
190	3852	WinService.exe
224	3852	WinService.exe
224	3852	WinService.exe
284	3852	WinService.exe
284	3852	WinService.exe
303	3852	WinService.exe
303	3852	WinService.exe
189	3852	WinService.exe
189	3852	WinService.exe
220	3852	WinService.exe
220	3852	WinService.exe
311	3852	WinService.exe
311	3852	WinService.exe
70	3852	WinService.exe
70	3852	WinService.exe
79	3852	WinService.exe
79	3852	WinService.exe
140	3852	WinService.exe
140	3852	WinService.exe
217	3852	WinService.exe
217	3852	WinService.exe
150	3852	WinService.exe
150	3852	WinService.exe
216	3852	WinService.exe
216	3852	WinService.exe
285	3852	WinService.exe
285	3852	WinService.exe
274	3852	WinService.exe
274	3852	WinService.exe
32	3852	WinService.exe
32	3852	WinService.exe
239	3852	WinService.exe
239	3852	WinService.exe
260	3852	WinService.exe
260	3852	WinService.exe
100	3852	WinService.exe
100	3852	WinService.exe
164	3852	WinService.exe
164	3852	WinService.exe
244	3852	WinService.exe
244	3852	WinService.exe
91	3852	WinService.exe
91	3852	WinService.exe
112	3852	WinService.exe
112	3852	WinService.exe
288	3852	WinService.exe
288	3852	WinService.exe

Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000024612-3.dat	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000024612-3.dat	INDICATOR_SUSPICIOUS_Binary_References_Browsers

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-1-5-21-2091445952-3649787497-104050984-1000\Control Panel\International\Geo\Nation	2026-10-24_2b88d854ed352b5bff21bd057e8c81f2_cobalt-strike_coinminer_icedid_njrat_remcos_vidar.exe

Executes dropped EXE 1 IoCs

pid	Process
3852	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-1-5-21-2091445952-3649787497-104050984-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-DAGNDG = "\"C:\\ProgramData\\Update\\WinService.exe\""	2026-10-24_2b88d854ed352b5bff21bd057e8c81f2_cobalt-strike_coinminer_icedid_njrat_remcos_vidar.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-DAGNDG = "\"C:\\ProgramData\\Update\\WinService.exe\""	2026-10-24_2b88d854ed352b5bff21bd057e8c81f2_cobalt-strike_coinminer_icedid_njrat_remcos_vidar.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2091445952-3649787497-104050984-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-DAGNDG = "\"C:\\ProgramData\\Update\\WinService.exe\""	WinService.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-DAGNDG = "\"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
3852	WinService.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	2156	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	2156	AUDIODG.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3852	WinService.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
3852	WinService.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 5304 wrote to memory of 3852	5304	2026-10-24_2b88d854ed352b5bff21bd057e8c81f2_cobalt-strike_coinminer_icedid_njrat_remcos_vidar.exe	85

C:\Users\Admin\AppData\Local\Temp\2026-10-24_2b88d854ed352b5bff21bd057e8c81f2_cobalt-strike_coinminer_icedid_njrat_remcos_vidar.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-24_2b88d854ed352b5bff21bd057e8c81f2_cobalt-strike_coinminer_icedid_njrat_remcos_vidar.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:5304
- C:\ProgramData\Update\WinService.exe
  "C:\ProgramData\Update\WinService.exe"
  2⤵
  - Suricata alert: REMCOS RAT Malware Outbound C2 Communication
  - 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:3852

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x2f8 0x3d8
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2156

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 228e9750bd981344fbe003f8ddec739388316291f6fdb951182c271faba994c1
MD5 2b88d854ed352b5bff21bd057e8c81f2
SHA1 11dc07af5591142dcfd880981981fcae5ab278c0
SHA512 4ba017c072c10251b9e802e68ca489c24c8f68f293d5921bc4356fb9d203353d1b0bf52dae9455ddaa9c3ad54536d779a10372b043a44b3c9e2fa31e5e37faba
SSDEEP 12288:5IfxS5XkH4nOqwitNfuquCwgs69gy3V5v+BNyo3PoL5aDz:e5GXkH4nnwitNfuq9wgs3y3V5vgNyo3E
TLSH
T14AE46D59A39402F8D0B7C135C982953BE7B2BC065571472F03E70E9B2F276A16F3AB16
MD5 SHA1 SHA512 SSDEEP TLSH

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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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