Analysis
- max time kernel
144s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20240611-en - resource tags
- submitted
30/06/2024, 19:33
General
- Target Uni.exe
- Size 348KB
- Sample240630-x9ny2stbpg
- SHA256 45213c63aaaf31c6b3a20b632e6b6f0efcc5ca693528bff63d02752f48f17590
Malware Config
Extracted
-
quasar
-
15.5.0
-
Crypted
-
147.185.221.20:49485
-
QSR_MUTEX_k8eftMEuU7a4TIUS2H
-
encryption_key
7VNoqFBD2kgjE7AIWeFj
-
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 1 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Uni.exe"C:\Users\Admin\AppData\Local\Temp\Uni.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
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 --field-trial-handle=4084,i,2113996974559895641,18156918660790954073,262144 --variations-seed-version --mojo-platform-channel-handle=4252 /prefetch:81⤵
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
memory/3048-0-0x000000007462E000-0x000000007462F000-memory.dmp
memory/3048-1-0x0000000000AF0000-0x0000000000B4E000-memory.dmp
memory/3048-2-0x0000000005B40000-0x00000000060E4000-memory.dmp
memory/3048-3-0x0000000005590000-0x0000000005622000-memory.dmp
memory/3048-4-0x0000000074620000-0x0000000074DD0000-memory.dmp
memory/3048-5-0x0000000005630000-0x0000000005696000-memory.dmp
memory/3048-6-0x0000000005AC0000-0x0000000005AD2000-memory.dmp
memory/3048-7-0x00000000067B0000-0x00000000067EC000-memory.dmp
memory/3048-9-0x0000000006B30000-0x0000000006B3A000-memory.dmp
memory/3048-10-0x000000007462E000-0x000000007462F000-memory.dmp
memory/3048-11-0x0000000074620000-0x0000000074DD0000-memory.dmp