Analysis
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max time kernel
129s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
03-08-2024 14:03
Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240708-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
f6b32504c6e17ce7b4110d0fabeca301
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SHA1
4824b66bb1c6eec5507fb6953a09d43d16c86471
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SHA256
f774a57c36378499db334d0b68aa53fc0f79fa10ae651f79a0ef2f73fd6d88d7
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SHA512
fbb83968342ae645c5934c494c2c48b8e7bd8f22d923c0344909a26204e6b1f002977dcb84dd91de10da731dad026e009e961a8f144765e34904195ec0817c7e
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SSDEEP
49152:KvbI22SsaNYfdPBldt698dBcjHGrRJ6rbR3LoGdRTHHB72eh2NT:Kvk22SsaNYfdPBldt6+dBcjHGrRJ69
Malware Config
Extracted
quasar
1.4.1
Office04
82.49.9.51:4782
49e7b5a4-6fe4-4855-b68c-1fba7121a568
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encryption_key
BF58CF0517AF2BD741F30FED0728FEC9DA104D6D
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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 payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/4016-1-0x0000000000960000-0x0000000000C84000-memory.dmp family_quasar -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Client-built.exedescription pid process Token: SeDebugPrivilege 4016 Client-built.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
Client-built.exepid process 4016 Client-built.exe -
Suspicious use of SendNotifyMessage 1 IoCs
Processes:
Client-built.exepid process 4016 Client-built.exe