Analysis
- max time kernel
112s - max time network
115s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
26/01/2023, 06:44
General
- Target Client-built2.exe
- Size 502KB
- Sample230126-hhxpjsec3v
- SHA256 240f6135d5dad8a8f0003be5e08123d721f5d0ee94dadc46d6575956b54f72fc
Score
10/10
Malware Config
Extracted
Family
-
quasar
Version
-
1.4.0
Botnet
-
Office04
C2
-
192.168.0.195:1604
-
192.168.0.1:1604
-
46.212.113.82:1604
Mutex
-
fffd6dc4-1f37-4e65-b7aa-0102dd3decf4
Attributes
-
encryption_key
894D60DF1A73A828E12DB9DF734CD59FBE6522AB
-
install_name
Client.exe
-
log_directory
Logs
-
reconnect_delay
100
-
startup_key
Quasar Client Startup
-
subdirectory
SubDir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Client-built2.exe"C:\Users\Admin\AppData\Local\Temp\Client-built2.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2248-132-0x0000000000330000-0x00000000003B4000-memory.dmp
memory/2248-133-0x00007FF905BB0000-0x00007FF906671000-memory.dmp
memory/2248-134-0x000000001CA90000-0x000000001CAE0000-memory.dmp
memory/2248-135-0x000000001CBA0000-0x000000001CC52000-memory.dmp
memory/2248-136-0x00007FF905BB0000-0x00007FF906671000-memory.dmp