Analysis
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max time kernel
140s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
09-12-2024 03:00
General
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Target
d951b4352f6e4f9ef63cbbabac6cae41d3de37d26dee4b4890d60b52d51ddbb4.exe
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Size
3.0MB
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MD5
25ae2a8e59da886dbc3192b12e000ffa
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SHA1
c384fbee5a29be18571d293c1e20a36d044bd86a
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SHA256
d951b4352f6e4f9ef63cbbabac6cae41d3de37d26dee4b4890d60b52d51ddbb4
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SHA512
246a2948f880231fe597a4c6cfb1f8acbbc7173f73752532dd2049697cd4165c6d1e966a1a598d260053e1f4aeebf0472ffedc4aec56c8233899c965c7fc6736
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SSDEEP
49152:auZju5PuuzE2wJMTFuUPHghJW5eqdCMuWnLBuU5ZHWIcCm:xjuFumw0Fu2gho5e4nLB5L
Malware Config
Extracted
quasar
1.4.1
Office04
45.200.148.155:6060
4b3820e0-d123-49d9-b51e-3c4daa4f6874
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encryption_key
F8879E9B26846C57C99B6F152F74703E1CC15B8B
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install_name
SecurityHealthSystray.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
SecurityHealthSystray.exe
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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 2 IoCs
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
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Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
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Suspicious use of NtSetInformationThreadHideFromDebugger 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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Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 2 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of WriteProcessMemory 3 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\d951b4352f6e4f9ef63cbbabac6cae41d3de37d26dee4b4890d60b52d51ddbb4.exe"C:\Users\Admin\AppData\Local\Temp\d951b4352f6e4f9ef63cbbabac6cae41d3de37d26dee4b4890d60b52d51ddbb4.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "SecurityHealthSystray.exe" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\SecurityHealthSystray.exe" /rl HIGHEST /f2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
7.6MB
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Filesize
7.6MB
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Filesize
7.6MB
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Filesize
5.6MB
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Filesize
584KB
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Filesize
40KB
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Filesize
6.1MB
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Filesize
320KB
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Filesize
712KB
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Filesize
72KB
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Filesize
240KB
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Filesize
408KB
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Filesize
7.6MB