Analysis
- max time kernel
149s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
15/04/2026, 10:17
General
- Target shieldflow.exe
- Size 3.1MB
- Sample260415-mbf6faew6x
- SHA256 b12f7e259c53f4030fa256be63c35232991fcfa3aac3af00057e683b2217276a
Malware Config
Extracted
-
quasar
-
1.4.1
-
shieldflow
-
open88a.net:4782
-
open88a.net:443
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2degvees.za.com:443
-
2degvees.za.com:4782
-
nivad.io:4782
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nivad.io:443
-
shieldflow
-
encryption_key
2DA8E1B5D18EAA4561218BCAF7CC51C403CE73ED
-
install_name
shieldflow.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
shieldflow
-
subdirectory
shieldflow
Signatures
- Family: Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Executes dropped EXE 2 IoCs
- 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.
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 3 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\shieldflow.exe"C:\Users\Admin\AppData\Local\Temp\shieldflow.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "shieldflow" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\shieldflow\shieldflow.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Roaming\shieldflow\shieldflow.exe"C:\Users\Admin\AppData\Roaming\shieldflow\shieldflow.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
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "shieldflow" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\shieldflow\shieldflow.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
-
-
-
C:\Users\Admin\AppData\Roaming\shieldflow\shieldflow.exeC:\Users\Admin\AppData\Roaming\shieldflow\shieldflow.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
shieldflow.exe.log
shieldflow.exe
memory/1780-9-0x000000001BBC0000-0x000000001BBD0000-memory.dmp
memory/1780-11-0x000000001C9A0000-0x000000001C9F0000-memory.dmp
memory/1780-13-0x000000001CAB0000-0x000000001CB62000-memory.dmp
memory/1780-14-0x0000000002DA0000-0x0000000002DB2000-memory.dmp
memory/1780-15-0x000000001BBC0000-0x000000001BBD0000-memory.dmp
memory/2068-12-0x0000000000EC0000-0x0000000000ED2000-memory.dmp
memory/4052-0-0x0000000000A30000-0x0000000000D54000-memory.dmp
memory/4052-1-0x0000000003110000-0x0000000003120000-memory.dmp
memory/4052-8-0x0000000003120000-0x0000000003132000-memory.dmp