Analysis
- max time kernel
147s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-20240319-en - resource tags
- submitted
08/04/2024, 02:43
General
- Target ee744afa00674c978780c9a27da3245d646037b9fa8b76828a021b750cc92058.exe
- Size 3.3MB
- Sample240408-c7qpmsef38
- SHA256 ee744afa00674c978780c9a27da3245d646037b9fa8b76828a021b750cc92058
Malware Config
Extracted
-
quasar
-
1.4.1
-
randoms
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192.168.50.97:4782
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d1132518-98da-4fb2-9846-de05b9c45c57
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encryption_key
CB8080F6DCDDE3CF3D0207D31F2E0D22CCB3D9ED
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install_name
Injection.exe
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log_directory
Logs
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reconnect_delay
3000
-
startup_key
Windows.exe
-
subdirectory
SubDir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Detects Windows executables referencing non-Windows User-Agents 2 IoCs
- Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 2 IoCs
- Detects executables containing common artifacts observed in infostealers 2 IoCs
- Executes dropped EXE 1 IoCs
- Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 6 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
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C:\Users\Admin\AppData\Local\Temp\ee744afa00674c978780c9a27da3245d646037b9fa8b76828a021b750cc92058.exe"C:\Users\Admin\AppData\Local\Temp\ee744afa00674c978780c9a27da3245d646037b9fa8b76828a021b750cc92058.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Windows.exe" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Injection.exe" /rl HIGHEST /f2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Roaming\SubDir\Injection.exe"C:\Users\Admin\AppData\Roaming\SubDir\Injection.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Windows.exe" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Injection.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
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-
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3684 --field-trial-handle=2148,i,1752153415760610784,11376271161549019716,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
Injection.exe
memory/780-0-0x00000000000D0000-0x000000000041C000-memory.dmp
memory/780-2-0x000000001B020000-0x000000001B030000-memory.dmp
memory/780-1-0x00007FFE39BD0000-0x00007FFE3A691000-memory.dmp
memory/780-10-0x00007FFE39BD0000-0x00007FFE3A691000-memory.dmp
memory/2272-9-0x00007FFE39BD0000-0x00007FFE3A691000-memory.dmp
memory/2272-11-0x000000001BF30000-0x000000001BF40000-memory.dmp
memory/2272-12-0x000000001BE50000-0x000000001BEA0000-memory.dmp
memory/2272-13-0x000000001CBF0000-0x000000001CCA2000-memory.dmp
memory/2272-14-0x00007FFE39BD0000-0x00007FFE3A691000-memory.dmp