Analysis
-
max time kernel
140s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
-
submitted
08-12-2024 15:41
General
-
Target
file.exe
-
Size
2.8MB
-
MD5
a4de831aec191850ac5b336069ce3d40
-
SHA1
df6263aae32913b94a1d45e9ba7f9124bcd5fe33
-
SHA256
0217b5932fcaf4679b2d394d5dd2f10775774d9e7b2d0679d6aace357e085cf8
-
SHA512
64dd2342b6f177b73be0d1ff2df5b1ab1dd12bc511e944345c60cc233e7812a01958a867bc05f3158312e3d5e20a7ce9bb1e1d7b87b37bef2f915e6b1e87d552
-
SSDEEP
49152:AxNkorvlIxM2zCY45vnOvRN39ELjD7xY0hJQh4CQubvWhNcCv59fykXDBFOedq:srblIxMnY45vOpNNELjD7xFJQh/QWvWL
Malware Config
Extracted
quasar
1.4.1
vuictim
91.214.78.16:7000
42d886c4-74fa-480d-8b7e-5fe1ac03ba03
-
encryption_key
D72F5D077DE4AC156A670D7D920C697F5FB66FA8
-
install_name
Client.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Microsoft edge
-
subdirectory
SubDir
Signatures
-
Quasar RAT
Quasar is an open source Remote Access Tool.
-
Quasar family
-
Quasar payload 2 IoCs
-
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
-
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
-
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.
-
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
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.
-
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
-
Suspicious behavior: EnumeratesProcesses 2 IoCs
-
Suspicious use of AdjustPrivilegeToken 1 IoCs
-
Suspicious use of FindShellTrayWindow 2 IoCs
-
Suspicious use of SendNotifyMessage 2 IoCs
-
Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.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 FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "Microsoft edge" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
7.5MB
-
Filesize
7.5MB
-
Filesize
7.5MB
-
Filesize
5.6MB
-
Filesize
584KB
-
Filesize
40KB
-
Filesize
6.1MB
-
Filesize
320KB
-
Filesize
712KB
-
Filesize
72KB
-
Filesize
240KB
-
Filesize
408KB
-
Filesize
7.5MB