remcos | a14ae5ed6cd8ec7f8ed5f7a2f252af41ae3ba6eafb67cfef259e38eeb6d1c9d2

Analysis

max time kernel
150s
max time network
152s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
31/10/2026, 02:35

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General

Target
b.exe
Size 525KB
Sample261031-c3fc4sgb88
SHA256 a14ae5ed6cd8ec7f8ed5f7a2f252af41ae3ba6eafb67cfef259e38eeb6d1c9d2
MD5 4be341fc52a5bab45fc36e72d55d618f
SHA1 45177f8f0048b82e54ec227cfef71d3749181345
SHA512 a1128e4d4998acc8e55c2cc15e5fdb3ec7871bfb576c5e4eb68c4a4f6cac1284e6a7bf0bdd979f9a81d52a8ddfe587b2cffd4b615d312b355eb8f9990631acf4
SSDEEP 12288:NcF3UU0AViEhkwkhoo+/TUszmXxr1svZ9Mxt:51AViE/kHszmXWZC
TLSH
T172B4AE01BAF1C1B2D57664700939EB35CEBCBC211C359D2B63D61E9ABE301519B3AB72
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

qh88 backdoor discovery remcos persistence rat suricata

Malware Config

Extracted

Family

remcos

Version

7.3.1 Pro

Botnet

QH88 Backdoor

qh88si.com:80
qh88eu.com:80
qh88.casino:80
qh88.gs:80
qh888b3.com:80
qh88.pub:80
qq88.studio:80
qq88.fan:80
qh88jqk.de:80
adongjsc.vn:80
miamisrl.co:80
pollitafeliz.com.co:80
shu.ac:80
shu.ac:443
pollitafeliz.com.co:443
miamisrl.co:443
adongjsc.vn:443
qh88jqk.de:443
qq88.fan:443
qq88.studio:443
qh88.pub:443
qh888b3.com:443
qh88.gs:443
qh88.casino:443
qh88eu.com:443
qh88si.com:443

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
QH App.exe
copy_folder
qh88
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-A9BG20
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
106	1688	svchost.exe
106	1688	svchost.exe
127	1688	svchost.exe
127	1688	svchost.exe
161	1688	svchost.exe
161	1688	svchost.exe
213	1688	svchost.exe
213	1688	svchost.exe
343	1688	svchost.exe
343	1688	svchost.exe
47	1688	svchost.exe
47	1688	svchost.exe
370	1688	svchost.exe
370	1688	svchost.exe
414	1688	svchost.exe
414	1688	svchost.exe
361	1688	svchost.exe
361	1688	svchost.exe
88	1688	svchost.exe
88	1688	svchost.exe
82	1688	svchost.exe
82	1688	svchost.exe
105	1688	svchost.exe
105	1688	svchost.exe
244	1688	svchost.exe
244	1688	svchost.exe
453	1688	svchost.exe
453	1688	svchost.exe
173	1688	svchost.exe
173	1688	svchost.exe
164	1688	svchost.exe
164	1688	svchost.exe
254	1688	svchost.exe
254	1688	svchost.exe
405	1688	svchost.exe
405	1688	svchost.exe
25	1688	svchost.exe
25	1688	svchost.exe
21	1688	svchost.exe
21	1688	svchost.exe
86	1688	svchost.exe
86	1688	svchost.exe
145	1688	svchost.exe
145	1688	svchost.exe
121	1688	svchost.exe
121	1688	svchost.exe
142	1688	svchost.exe
142	1688	svchost.exe
389	1688	svchost.exe
389	1688	svchost.exe
444	1688	svchost.exe
444	1688	svchost.exe
74	1688	svchost.exe
74	1688	svchost.exe
132	1688	svchost.exe
132	1688	svchost.exe
283	1688	svchost.exe
283	1688	svchost.exe
394	1688	svchost.exe
394	1688	svchost.exe
443	1688	svchost.exe
443	1688	svchost.exe
146	1688	svchost.exe
146	1688	svchost.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-A9BG20 = "\"C:\\ProgramData\\qh88\\QH App.exe\""	b.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	QH App.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Rmc-A9BG20 = "\"C:\\ProgramData\\qh88\\QH App.exe\""	QH App.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	b.exe

Executes dropped EXE 1 IoCs

pid	Process
464	QH App.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-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-A9BG20 = "\"C:\\ProgramData\\qh88\\QH App.exe\""	QH App.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-A9BG20 = "\"C:\\ProgramData\\qh88\\QH App.exe\""	QH App.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-A9BG20 = "\"C:\\ProgramData\\qh88\\QH App.exe\""	b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-A9BG20 = "\"C:\\ProgramData\\qh88\\QH App.exe\""	b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 464 set thread context of 1688	464	QH App.exe	90

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 3 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	QH App.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1688	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	1304	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1304	AUDIODG.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1688	svchost.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1688	svchost.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3116 wrote to memory of 464	3116	b.exe	89
PID 464 wrote to memory of 1688	464	QH App.exe	90

C:\Users\Admin\AppData\Local\Temp\b.exe
"C:\Users\Admin\AppData\Local\Temp\b.exe"
1⤵
- Adds policy Run key to start application
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3116
- C:\ProgramData\qh88\QH App.exe
  "C:\ProgramData\qh88\QH App.exe"
  2⤵
  - Adds policy Run key to start application
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:464
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - Suricata alert: REMCOS RAT Malware Outbound C2 Communication
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SendNotifyMessage
    PID:1688

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x00000000000004E0 0x00000000000004E4
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1304

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 Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

QH App.exe

Path C:\ProgramData\qh88\QH App.exe
Size 525KB
SHA256 a14ae5ed6cd8ec7f8ed5f7a2f252af41ae3ba6eafb67cfef259e38eeb6d1c9d2
MD5 4be341fc52a5bab45fc36e72d55d618f
SHA1 45177f8f0048b82e54ec227cfef71d3749181345
SHA512 a1128e4d4998acc8e55c2cc15e5fdb3ec7871bfb576c5e4eb68c4a4f6cac1284e6a7bf0bdd979f9a81d52a8ddfe587b2cffd4b615d312b355eb8f9990631acf4
SSDEEP 12288:NcF3UU0AViEhkwkhoo+/TUszmXxr1svZ9Mxt:51AViE/kHszmXWZC
TLSH
T172B4AE01BAF1C1B2D57664700939EB35CEBCBC211C359D2B63D61E9ABE301519B3AB72
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1688-2-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/1688-3-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/1688-4-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/1688-5-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/1688-6-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/1688-7-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/1688-8-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/1688-9-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/1688-10-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/1688-11-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/1688-12-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/1688-13-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/1688-14-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/1688-15-0x0000000000400000-0x0000000000490000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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