Analysis
- max time kernel
145s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
05/01/2023, 11:35
General
- Target 2.exe
- Size 2.7MB
- Sample230105-np4dkafc7t
- SHA256 14df5d1e4b0be12a769c1c8ba950c4c2a192cc4f145dbe9decec59bf2706788b
Score
10/10
Malware Config
Extracted
Family
-
quasar
Version
-
1.4.0
Botnet
-
Office04
C2
-
161.97.148.204:1604
Mutex
-
dabdfe29-55de-460b-9c36-9570f2b03a88
Attributes
-
encryption_key
4795EB97A05AE5F4E669D4B7FFF6608D94FC9027
-
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 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2.exe"C:\Users\Admin\AppData\Local\Temp\2.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2636-132-0x0000000000980000-0x0000000000C40000-memory.dmp
memory/2636-133-0x00007FF833AC0000-0x00007FF834581000-memory.dmp
memory/2636-134-0x000000001DA60000-0x000000001DAB0000-memory.dmp
memory/2636-135-0x000000001DB70000-0x000000001DC22000-memory.dmp
memory/2636-136-0x00007FF833AC0000-0x00007FF834581000-memory.dmp