Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
09-12-2024 17:45
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
1e95dbf3d51282ba1c6c455072db3853
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SHA1
62460f6c11bdf66f5180fd06cf50bb6cc1b342f4
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SHA256
ac67ed61a6bb0d7db50756f4dbacdb56ed90755f1d9e693d9e3650445b271474
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SHA512
965720b3bfaa906748d9fc75d6688fd438245a404724b07aa69282030167559007e0133bf2e5ede8476e15ea8c3d556ecf10d8658ee7d6ccc8d1d73f128232b1
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SSDEEP
49152:DvulL26AaNeWgPhlmVqvMQ7XSKCO/RJ6mbR3LoGdQTHHB72eh2NT:DveL26AaNeWgPhlmVqkQ7XSKCO/RJ6g
Malware Config
Extracted
quasar
1.4.1
trey
problems-estimation.gl.at.ply.gg:23158
108c9f83-3a30-4ea4-82a6-924c2fb96505
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encryption_key
3C4A7FEC35CCD9EF97E67742362289CDF4B0B0AE
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install_name
trey.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
trey
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 2 IoCs
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Executes dropped EXE 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
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Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 17 IoCs
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Suspicious use of AdjustPrivilegeToken 7 IoCs
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Suspicious use of FindShellTrayWindow 44 IoCs
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Suspicious use of SendNotifyMessage 44 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 6 IoCs
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Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\Client-built.exe"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\trey\trey.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
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C:\Users\Admin\AppData\Roaming\trey\trey.exe"C:\Users\Admin\AppData\Roaming\trey\trey.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\trey\trey.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Checks SCSI registry key(s)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.1MB
MD51e95dbf3d51282ba1c6c455072db3853
SHA162460f6c11bdf66f5180fd06cf50bb6cc1b342f4
SHA256ac67ed61a6bb0d7db50756f4dbacdb56ed90755f1d9e693d9e3650445b271474
SHA512965720b3bfaa906748d9fc75d6688fd438245a404724b07aa69282030167559007e0133bf2e5ede8476e15ea8c3d556ecf10d8658ee7d6ccc8d1d73f128232b1
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Filesize
10.8MB
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Filesize
10.8MB
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Filesize
320KB
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Filesize
712KB
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Filesize
10.8MB
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Filesize
8KB
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Filesize
3.1MB
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Filesize
10.8MB
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Filesize
10.8MB
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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
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Filesize
4KB
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Filesize
4KB