Analysis
- max time kernel
150s - max time network
152s - platform
windows10-ltsc_2021_x64 - resource
win10ltsc2021-20260911-en - resource tags
arch:x64arch:x86image:win10ltsc2021-20260911-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows - submitted
03/11/2026, 07:14
Behavioral task
behavioral1
Sample
rrrr.exe
Resource
win10v2004-20260911-en
windows10-2004-x64
13 signatures
150 seconds
Behavioral task
behavioral2
Sample
rrrr.exe
Resource
win10ltsc2021-20260911-en
windows10-ltsc_2021-x64
13 signatures
150 seconds
Behavioral task
behavioral3
Sample
rrrr.exe
Resource
win11-20260911-en
windows11-21h2-x64
12 signatures
150 seconds
General
- Target rrrr.exe
- Size 645KB
- Sample261103-h2rmmsav4j
- SHA256 36b9a6217d7733d438960fcec51d4a08ccf011525894cb26f1ce4a09a0db6be4
- MD5 e025af0b5e2298f9c54d2f1f62e4fd5b
- SHA1 014793a0fb1441720762fb389f061a51f6dce1c6
- SHA512 037f01758b9786a913b3173265e02d389e4e8c910a5ac109c8e6ac66f38f128c7e7d7929de3a0fb34d58953abc5f4cbe2da7ac8890c7842c5a89ea54d5f603b4
- SSDEEP 12288:3IfxS5XkH4nOqwitNfuquCwgs69gy3V5v+BNyo3PoL5aDz:45GXkH4nnwitNfuq9wgs3y3V5vgNyo3E
- TLSH T106E46D59A39402F8D0B7C135C982953BE7B2BC065571472F03D70E9B2F276A16F3AB26
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
Family
-
remcos
Version
-
7.3.1 Pro
Botnet
-
au88
C2
-
gaylife.gr.com:443
-
abgstore.com.co:443
-
pg999asia.net:443
-
jacksclub.co:443
-
v99win.tv:443
-
fomo444slot.co:443
-
mmoo.spot:443
-
x88.cheap:443
-
juad888.us:443
-
anxietyinchildren.co:443
-
afribus.co:443
-
luckywin.ski:443
-
88aa.games:443
-
fun79i.com:443
-
luckywin6668.net:443
-
88aa.link:443
-
congaden.cc:443
-
luck888.beer:443
-
mu88a2.com:443
-
luck8be.com:443
-
8kbet1.cc:443
-
funpunch.in:443
-
x41t3.buzz:443
-
8kbetmb.com:443
-
kent-casino-ury.buzz:443
-
themoviezflix.in.net:443
-
toplikes.in:443
-
8kbet.property:443
-
8kbeta5.com:443
-
teatoxlife.in:443
-
slotxo1122.com:443
-
68gbcom.co:443
-
68gbdoithuong.vip:443
-
au881.com:443
-
au88.hot:443
-
au88vn.me:443
Attributes
-
audio_folder
au88
-
audio_path
ApplicationPath
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
App.exe
-
copy_folder
au88
-
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-OZGKWF
-
screenshot_crypt
false
-
screenshot_flag
true
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
- startup_value
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Suricata alert: REMCOS RAT Malware Outbound C2 Communication 64 IoCs
Network activity triggered a Suricata alert
flow pid Process 714 3484 App.exe 714 3484 App.exe 798 3484 App.exe 798 3484 App.exe 184 3484 App.exe 184 3484 App.exe 142 3484 App.exe 142 3484 App.exe 625 3484 App.exe 625 3484 App.exe 647 3484 App.exe 647 3484 App.exe 778 3484 App.exe 778 3484 App.exe 804 3484 App.exe 804 3484 App.exe 731 3484 App.exe 731 3484 App.exe 122 3484 App.exe 122 3484 App.exe 207 3484 App.exe 207 3484 App.exe 400 3484 App.exe 400 3484 App.exe 336 3484 App.exe 336 3484 App.exe 793 3484 App.exe 793 3484 App.exe 93 3484 App.exe 93 3484 App.exe 299 3484 App.exe 465 3484 App.exe 465 3484 App.exe 564 3484 App.exe 564 3484 App.exe 631 3484 App.exe 631 3484 App.exe 55 3484 App.exe 55 3484 App.exe 131 3484 App.exe 131 3484 App.exe 310 3484 App.exe 310 3484 App.exe 216 3484 App.exe 216 3484 App.exe 275 3484 App.exe 275 3484 App.exe 436 3484 App.exe 436 3484 App.exe 602 3484 App.exe 602 3484 App.exe 632 3484 App.exe 632 3484 App.exe 37 3484 App.exe 37 3484 App.exe 195 3484 App.exe 195 3484 App.exe 296 3484 App.exe 296 3484 App.exe 440 3484 App.exe 440 3484 App.exe 556 3484 App.exe 556 3484 App.exe 803 3484 App.exe - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4003929486-1233426720-3594832368-1000\Control Panel\International\Geo\Nation rrrr.exe - Executes dropped EXE 1 IoCs
pid Process 3484 App.exe - Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4003929486-1233426720-3594832368-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-OZGKWF = "\"C:\\ProgramData\\au88\\App.exe\"" rrrr.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-OZGKWF = "\"C:\\ProgramData\\au88\\App.exe\"" rrrr.exe Set value (str) \REGISTRY\USER\S-1-5-21-4003929486-1233426720-3594832368-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-OZGKWF = "\"C:\\ProgramData\\au88\\App.exe\"" App.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-OZGKWF = "\"C:\\ProgramData\\au88\\App.exe\"" App.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname App.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain App.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3484 App.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: 33 4164 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 4164 AUDIODG.EXE - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3484 App.exe - Suspicious use of SendNotifyMessage 1 IoCs
pid Process 3484 App.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3484 App.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 1676 wrote to memory of 3484 1676 rrrr.exe 83
Processes
-
C:\Users\Admin\AppData\Local\Temp\rrrr.exe"C:\Users\Admin\AppData\Local\Temp\rrrr.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1676 -
C:\ProgramData\au88\App.exe"C:\ProgramData\au88\App.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
- Suspicious use of SetWindowsHookEx
PID:3484
-
-
C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x3c8 0x44c1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4164
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\ProgramData\au88\App.exe
- Size 645KB
- SHA256 36b9a6217d7733d438960fcec51d4a08ccf011525894cb26f1ce4a09a0db6be4
- MD5 e025af0b5e2298f9c54d2f1f62e4fd5b
- SHA1 014793a0fb1441720762fb389f061a51f6dce1c6
- SHA512 037f01758b9786a913b3173265e02d389e4e8c910a5ac109c8e6ac66f38f128c7e7d7929de3a0fb34d58953abc5f4cbe2da7ac8890c7842c5a89ea54d5f603b4
- SSDEEP 12288:3IfxS5XkH4nOqwitNfuquCwgs69gy3V5v+BNyo3PoL5aDz:45GXkH4nnwitNfuq9wgs3y3V5vgNyo3E
- TLSH T106E46D59A39402F8D0B7C135C982953BE7B2BC065571472F03D70E9B2F276A16F3AB26
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\ProgramData\remcos\logs.dat
- Size 208B
- SHA256 aea0e47fae61caea746a038ad5e097c51be9a5da2da175e5596f79e8cefc8978
- MD5 570f4269fcc6a096bbc1e11f42b2035a
- SHA1 2c0a4f5b9be721b40dc4747eb1c5dd16cbea9d95
- SHA512 1727889e5a54ba3f767a131914de87447ba5b4b3c004733202d0e97cbffc86f529ab6666512e793bb9c82b7e88e5620189d5f749124700c827c558def7b721eb
- TLSH T1C1D0122537E21057BE33915B9AF701263A75B569123C9C4E61D5434C14F1509665174F
- MD5 SHA1 SHA512 TLSH