Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
16/04/2026, 15:32
Behavioral task
behavioral1
Sample
gamepulse.exe
Resource
win10v2004-20260130-en
12 signatures
150 seconds
General
- Target gamepulse.exe
- Size 3.5MB
- Sample260416-sym56ags41
- SHA256 fa1b51658dea009762773097819f0ba9161cdf82b60d001220f501d423eb39b1
- MD5 8cb6095cd73ed463341dbf4a3a31e7f9
- SHA1 617ce1c82ea1f1ef5c3e6cfda12b402dd694d9e0
- SHA512 f3c368761af1c9ae8ea33086535b8d6c0cbdb344bb1207d19aef13c56dcc62c53fba8a1864f1925a419f4c9138173c106cbb46342350b507048303496bd0573f
- SSDEEP 49152:evE7C2bFaR9i5PxlPn+I8KJvp2h33M+oG48ETHHB72eh2NT:eviC2bFaR9i5PxlPn+3KJvp2h33x
- TLSH T175F54A0037F87E66E16AD676D7B1503263F0E82AB353E71A15C163EA3C6FB4058316A7
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
Family
-
quasar
Version
-
1.4.1
Botnet
-
GamePulse
C2
-
gbsuu.jp.net:4782
-
gbsuu.jp.net:443
-
audit.ru.com:1604
-
audit.ru.com:80
-
ransomware.it.com:443
-
ransomware.it.com:4782
-
ransomware.it.com:8848
-
ransomware.it.com:8888
-
ransomware.it.com:8080
-
icreate.jp.net:700
-
icreate.jp.net:3121
-
tubidy.co.com:700
-
tubidy.co.com:53
Mutex
-
GamePulse
Attributes
-
encryption_key
2DA8E1B5D18EAA4561218BCAF7CC51C403CE73ED
-
install_name
netWork.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
netWork
-
subdirectory
%appdata%
Signatures
- Quasar payload 2 IoCs
resource yara_rule behavioral1/memory/2256-0-0x0000000000250000-0x00000000005CE000-memory.dmp family_quasar behavioral1/files/0x00080000000243e5-4.dat family_quasar - Executes dropped EXE 1 IoCs
pid Process 3404 netWork.exe - Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\%appdata%\netWork.exe gamepulse.exe File opened for modification C:\Program Files\%appdata%\netWork.exe gamepulse.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1380 schtasks.exe 3192 schtasks.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2256 gamepulse.exe Token: SeDebugPrivilege 3404 netWork.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3404 netWork.exe - Suspicious use of SendNotifyMessage 1 IoCs
pid Process 3404 netWork.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3404 netWork.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2256 wrote to memory of 1380 2256 gamepulse.exe 86 PID 2256 wrote to memory of 3404 2256 gamepulse.exe 88 PID 3404 wrote to memory of 3192 3404 netWork.exe 90 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\gamepulse.exe"C:\Users\Admin\AppData\Local\Temp\gamepulse.exe"1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2256 -
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "netWork" /sc ONLOGON /tr "C:\Program Files\%appdata%\netWork.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:1380
-
-
C:\Program Files\%appdata%\netWork.exe"C:\Program Files\%appdata%\netWork.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3404 -
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "netWork" /sc ONLOGON /tr "C:\Program Files\%appdata%\netWork.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:3192
-
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Program Files\%appdata%\netWork.exe
- Size 3.5MB
- SHA256 fa1b51658dea009762773097819f0ba9161cdf82b60d001220f501d423eb39b1
- MD5 8cb6095cd73ed463341dbf4a3a31e7f9
- SHA1 617ce1c82ea1f1ef5c3e6cfda12b402dd694d9e0
- SHA512 f3c368761af1c9ae8ea33086535b8d6c0cbdb344bb1207d19aef13c56dcc62c53fba8a1864f1925a419f4c9138173c106cbb46342350b507048303496bd0573f
- SSDEEP 49152:evE7C2bFaR9i5PxlPn+I8KJvp2h33M+oG48ETHHB72eh2NT:eviC2bFaR9i5PxlPn+3KJvp2h33x
- TLSH T175F54A0037F87E66E16AD676D7B1503263F0E82AB353E71A15C163EA3C6FB4058316A7
- MD5 SHA1 SHA512 SSDEEP TLSH