Analysis
- max time kernel
144s - max time network
161s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
01/07/2024, 01:22
General
- Target 27dad1cf69f9cb558f4d975c8bf34faa.exe
- Size 3.1MB
- Sample240701-brcx6ssanb
- SHA256 910222c58e9a584fe4015ef10462470b320b624d7b56056b3ffcf7ea2f479b80
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
performance-ha.gl.at.ply.gg:33365
-
performance-ha.gl.at.ply.gg:13678
-
ba5220e2-c4e8-4381-aad8-a85115ef955e
-
encryption_key
67C139F3E9A16FF8132A3DCF42197B8BA3C38609
-
install_name
Client.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Quasar Client Startup
-
subdirectory
SubDir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Executes dropped EXE 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\27dad1cf69f9cb558f4d975c8bf34faa.exe"C:\Users\Admin\AppData\Local\Temp\27dad1cf69f9cb558f4d975c8bf34faa.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
-
-
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=4060 --field-trial-handle=3240,i,13319578961094268484,16557498665191861597,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
Client.exe
memory/1968-9-0x00007FF9872D0000-0x00007FF987D91000-memory.dmp
memory/1968-11-0x00007FF9872D0000-0x00007FF987D91000-memory.dmp
memory/1968-13-0x00007FF9872D0000-0x00007FF987D91000-memory.dmp
memory/1968-14-0x000000001C6A0000-0x000000001C6F0000-memory.dmp
memory/1968-15-0x000000001C7B0000-0x000000001C862000-memory.dmp
memory/2184-0-0x00007FF9872D3000-0x00007FF9872D5000-memory.dmp
memory/2184-1-0x0000000000B60000-0x0000000000E84000-memory.dmp
memory/2184-2-0x00007FF9872D0000-0x00007FF987D91000-memory.dmp
memory/2184-3-0x00007FF9872D3000-0x00007FF9872D5000-memory.dmp
memory/2184-4-0x00007FF9872D0000-0x00007FF987D91000-memory.dmp
memory/2184-12-0x00007FF9872D0000-0x00007FF987D91000-memory.dmp