Analysis
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max time kernel
120s -
max time network
117s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
04/01/2025, 13:54
General
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Target
63c6d0920ea03f76908fe5f7b2492445de2ae9a2324fe4bb8e8300b869e92950N.exe
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Size
480KB
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MD5
1eb69f7c6c85d25643396c52745fb8f0
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SHA1
80266ec69123767990f1e58372ee9b47c12e01cc
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SHA256
63c6d0920ea03f76908fe5f7b2492445de2ae9a2324fe4bb8e8300b869e92950
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SHA512
6f45abc90571e3efae25dce66cb86d69aea53d3631662dbc0317905ca6f9740de3eb112196b9c83544907e944057a0eab5698fd0834df277f755536b74ec215f
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SSDEEP
12288:iww6xvH9M3Ir55+JpWQbe6Ef4D+2u+4gnflehW:inKP9M4r55+JAQGf4D+2tleA
Malware Config
Extracted
quasar
1.3.0.0
svchost.exe
23.227.174.82:4782
QSR_MUTEX_UtaUPinApnyZsQXsVE
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encryption_key
hn8U0t79xWv7f03kzG79
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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subdirectory
SubDir
Signatures
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Quasar RAT
Quasar is an open source Remote Access Tool.
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Quasar family
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Quasar payload 1 IoCs
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Drops startup file 1 IoCs
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of SetThreadContext 1 IoCs
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Suspicious behavior: EnumeratesProcesses 8 IoCs
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Suspicious behavior: MapViewOfSection 1 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 4 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\63c6d0920ea03f76908fe5f7b2492445de2ae9a2324fe4bb8e8300b869e92950N.exe"C:\Users\Admin\AppData\Local\Temp\63c6d0920ea03f76908fe5f7b2492445de2ae9a2324fe4bb8e8300b869e92950N.exe"1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Users\Admin\AppData\Local\Temp\63c6d0920ea03f76908fe5f7b2492445de2ae9a2324fe4bb8e8300b869e92950N.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
376KB
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Filesize
40KB
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Filesize
240KB
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Filesize
72KB
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Filesize
408KB
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Filesize
584KB
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Filesize
5.6MB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB