Analysis
- max time kernel
149s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
18/09/2026, 22:40
Behavioral task
behavioral1
Sample
Prestige Launcher (2).exe
Resource
win10v2004-20260911-en
11 signatures
150 seconds
General
- Target Prestige Launcher (2).exe
- Size 3.2MB
- Sample260918-2lpb5atbld
- SHA256 948e378ec01b0a9ccee144fe17290874d53eb9a686bae952643cfe30a0c3355b
- MD5 e7974e1c8986ba173a63cc95c33a2b49
- SHA1 d9c368a22d4ca72d8c8ef013dc3bc83b71dedb96
- SHA512 7e5c4d745087b5631709fb67eda5efb8606348fa0b7ba1791efae8ea86df9998ae9c78d4beb8c1380c5cf5f5fcbe697c922f396c5115770f08f2c46f3c0ab882
- SSDEEP 49152:PvbI22SsaNYfdPBldt698dBcjHbPDkE2H3k/+FBoGd/THHB72eh2NTd:Pvk22SsaNYfdPBldt6+dBcjHbPD8L
- TLSH T1B1E55B143BF85F23E1BBE27395B0041667F0EC2AB3A3EB1B1191677E1C53B5059426AB
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
Family
-
quasar
Version
-
1.4.1
Botnet
-
Office04
C2
-
192.168.11.41:139
Mutex
-
aa4a2ba4-5541-49d5-938d-dcc66534489c
Attributes
-
encryption_key
B0269B148C1775F4FBC2A4C271087C43E0AC4A02
-
install_name
Client.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
RtkAudUService32
-
subdirectory
tr-TN
Signatures
- Quasar payload 2 IoCs
resource yara_rule behavioral2/memory/3148-1-0x0000000000B30000-0x0000000000E60000-memory.dmp family_quasar behavioral2/files/0x000d00000001c597-15.dat family_quasar - Executes dropped EXE 2 IoCs
pid Process 2916 Client.exe 4960 Client.exe - Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\system32\tr-TN\Client.exe Prestige Launcher (2).exe - 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 4480 schtasks.exe 4800 schtasks.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 3148 Prestige Launcher (2).exe Token: SeDebugPrivilege 2916 Client.exe Token: SeDebugPrivilege 4960 Client.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2916 Client.exe - Suspicious use of SendNotifyMessage 1 IoCs
pid Process 2916 Client.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3148 wrote to memory of 4480 3148 Prestige Launcher (2).exe 88 PID 3148 wrote to memory of 2916 3148 Prestige Launcher (2).exe 90 PID 2916 wrote to memory of 4800 2916 Client.exe 92 - 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\Prestige Launcher (2).exe"C:\Users\Admin\AppData\Local\Temp\Prestige Launcher (2).exe"1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3148 -
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "RtkAudUService32" /sc ONLOGON /tr "C:\Windows\system32\tr-TN\Client.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:4480
-
-
C:\Windows\system32\tr-TN\Client.exe"C:\Windows\system32\tr-TN\Client.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2916 -
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "RtkAudUService32" /sc ONLOGON /tr "C:\Windows\system32\tr-TN\Client.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:4800
-
-
-
C:\Windows\system32\tr-TN\Client.exeC:\Windows\system32\tr-TN\Client.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4960
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵PID:5728
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\System32\tr-TN\Client.exe
- Size 3.2MB
- SHA256 948e378ec01b0a9ccee144fe17290874d53eb9a686bae952643cfe30a0c3355b
- MD5 e7974e1c8986ba173a63cc95c33a2b49
- SHA1 d9c368a22d4ca72d8c8ef013dc3bc83b71dedb96
- SHA512 7e5c4d745087b5631709fb67eda5efb8606348fa0b7ba1791efae8ea86df9998ae9c78d4beb8c1380c5cf5f5fcbe697c922f396c5115770f08f2c46f3c0ab882
- SSDEEP 49152:PvbI22SsaNYfdPBldt698dBcjHbPDkE2H3k/+FBoGd/THHB72eh2NTd:Pvk22SsaNYfdPBldt6+dBcjHbPD8L
- TLSH T1B1E55B143BF85F23E1BBE27395B0041667F0EC2AB3A3EB1B1191677E1C53B5059426AB
- MD5 SHA1 SHA512 SSDEEP TLSH