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Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
09/08/2024, 16:06
Behavioral task
behavioral1
Sample
RD_VSetup1.41.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
RD_VSetup1.41.exe
Resource
win10v2004-20240802-en
General
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Target
RD_VSetup1.41.exe
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Size
3.3MB
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MD5
094452bdd14c5acce6a8e5cb16f39fac
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SHA1
f7c55189d66bb0722bc00af7b400d66b6caa8779
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SHA256
eea939e6d9dae292703d7d5b634938cfe4a00db8115daf9c3c4148afd8895eef
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SHA512
4dde7c1083b658b943cbb50e95c6fd8fe547512eb11cdfd1f1d0fe9f1552b968f6cbf30fbfb8829cba65e00504abe63c39c0c9680cd8d0c945c56e1fe8a96d67
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SSDEEP
49152:fvLI22SsaNYfdPBldt698dBcjH20ymSmzDwoGdeBTHHB72eh2NTc:fv022SsaNYfdPBldt6+dBcjH/ym8+
Malware Config
Extracted
quasar
1.4.1
RemixThatTing
192.168.1.1:4782
2853cd92-f829-4151-a3ab-a32a77b6bfd1
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encryption_key
1C048FBC4D2C47C8039B5C30AAA4E3E12C03AE02
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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
Java Updater v.1.4.1
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subdirectory
SubDir
Signatures
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Quasar payload 1 IoCs
resource yara_rule behavioral2/memory/1744-1-0x00000000005B0000-0x0000000000902000-memory.dmp family_quasar -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4424 schtasks.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1744 RD_VSetup1.41.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1744 RD_VSetup1.41.exe -
Suspicious use of SendNotifyMessage 1 IoCs
pid Process 1744 RD_VSetup1.41.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1744 RD_VSetup1.41.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 1744 wrote to memory of 4424 1744 RD_VSetup1.41.exe 86 PID 1744 wrote to memory of 4424 1744 RD_VSetup1.41.exe 86 -
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\RD_VSetup1.41.exe"C:\Users\Admin\AppData\Local\Temp\RD_VSetup1.41.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1744 -
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Java Updater v.1.4.1" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:4424
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