Analysis
- max time kernel
128s - max time network
129s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
01/11/2026, 02:02
General
- Target PrismaClient.exe
- Size 5.3MB
- Sample261101-cf4r7asscw
- SHA256 e35919f0d1eaf55b42c9a6278eb1be58502b8f88907e6c78b068eb32d9ebd715
Malware Config
Extracted
-
quasar
-
1.0.0
-
Office04
-
bore.pub:48248
-
2b550e0c-0409-42d2-a39d-1f28b079235c
-
encryption_key
112EF928451E2D8E49CBF356E45023F162738F78
-
install_name
Client.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Prisma Client Startup
-
subdirectory
SubDir
Signatures
- Family: Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Executes dropped EXE 2 IoCs
- Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
- 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\PrismaClient.exe"C:\Users\Admin\AppData\Local\Temp\PrismaClient.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Prisma Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Roaming\SubDir\Client.exeC:\Users\Admin\AppData\Roaming\SubDir\Client.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Prisma Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
quasar_restart_marker.txt
quasar_restart_marker.txt
Client.exe
memory/1136-29-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/1136-30-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/1136-38-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/1136-32-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/1136-31-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/1136-28-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/1136-27-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/1136-26-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/1136-25-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/1136-24-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/1136-23-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/1136-22-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/1136-20-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/1136-17-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/4204-36-0x000000001C680000-0x000000001C6D0000-memory.dmp
memory/4204-41-0x000000001C6D0000-0x000000001C6E2000-memory.dmp
memory/4204-42-0x000000001C730000-0x000000001C76C000-memory.dmp
memory/4204-37-0x000000001C790000-0x000000001C842000-memory.dmp
memory/4948-13-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/4948-9-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/4948-12-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/4948-11-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/4948-10-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/4948-4-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/4948-0-0x00007FFB0B56F000-0x00007FFB0B570000-memory.dmp
memory/4948-21-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/4948-8-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/4948-7-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/4948-1-0x0000000000DA0000-0x00000000012F4000-memory.dmp
memory/4948-14-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/4948-15-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/4948-6-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/4948-5-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp
memory/4948-3-0x00007FFB0B3E0000-0x00007FFB0BD84000-memory.dmp