Analysis
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max time kernel
128s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
23-12-2024 06:24
General
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Target
Client-built.exe
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Size
348KB
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MD5
beb1de229b374cd778107c8268e191ac
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SHA1
fb5dcf278195472e206fa484f7005aa485c308ae
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SHA256
604b99f997d7de70804667e6e985627485d1a4d1eb694f3c36a34f0a01aef7bd
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SHA512
62bbd4c5688438fb5b9d3610cc2fe2be654f4373a28fc116d6118d20b00c82060ac77d33c11758ef20b84a06a3eaced8a6eb9fe792a3a21207f1b37bb18caff0
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SSDEEP
6144:IzNHXf500MoXP4PcNINSzpbDGrnxD6JAwV5IO:6d50OCcxzAjR6qwV5IO
Malware Config
Extracted
quasar
1.3.0.0
Office04
20.107.53.25:25535
QSR_MUTEX_zQ0poF2lHhCSZKSUZ3
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encryption_key
E2xbpJ93MnABcIqioTDL
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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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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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System Location Discovery: System Language Discovery 1 TTPs 1 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 use of AdjustPrivilegeToken 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Client-built.exe"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
4KB
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Filesize
376KB
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Filesize
5.6MB
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Filesize
584KB
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Filesize
7.7MB
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Filesize
408KB
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Filesize
72KB
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Filesize
240KB
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Filesize
4KB
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Filesize
7.7MB
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Filesize
40KB