Analysis
- max time kernel
37s - max time network
40s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
04/08/2026, 12:21
General
- Target Client-built.exe
- Size 3.1MB
- Sample260804-pjbl2azfkb
- SHA256 31c5f4d2bd372863bfb5c1c42fa6a9d0f5318a23baeca7904d9d6421a9651e0e
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
xxxxxxxxxxxxx1.localto.net:6155
-
b4e6b30f-9ca8-4cbf-95c6-796eaf2b5f7a
-
encryption_key
9AB3C8E4FBD91315175F3A5B7282BF3024F7F5D9
-
install_name
Client.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Quasar Client Startup
-
subdirectory
SubDir
Signatures
- Family: Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 1 IoCs
- Looks up external IP address via web service 1 TTPs 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Client-built.exe"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/2760-0-0x00007FFCF55BF000-0x00007FFCF55C0000-memory.dmp
memory/2760-1-0x0000000000610000-0x0000000000934000-memory.dmp
memory/2760-2-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/2760-3-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/2760-4-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/2760-5-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/2760-6-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/2760-7-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/2760-8-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/2760-9-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/2760-10-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/2760-11-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/2760-12-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/2760-14-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/2760-13-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/2760-15-0x000000001B6C0000-0x000000001B710000-memory.dmp
memory/2760-16-0x000000001C8E0000-0x000000001C992000-memory.dmp
memory/2760-17-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp