Analysis
- max time kernel
127s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
21/03/2023, 13:24
General
- Target 06f7a5380d0d2f23e9c481071e7766486806d38c6cd5785b5897863b481d56d1.exe
- Size 3.1MB
- Sample230321-qnrdqace2s
- SHA256 06f7a5380d0d2f23e9c481071e7766486806d38c6cd5785b5897863b481d56d1
Malware Config
Extracted
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quasar
-
1.4.1
-
Office04
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ihateniggers5544.ddns.net:8809
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b70e724b-4202-4eaf-b98a-4e60321e81b1
-
encryption_key
17A6263AC244917D1D2FCDF862A8A170BBA832F9
-
install_name
Spoofer39.exe
-
log_directory
Logs
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reconnect_delay
3000
-
startup_key
Windows Explorer Management
-
subdirectory
SubDir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 3 IoCs
- Executes dropped EXE 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
- 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\06f7a5380d0d2f23e9c481071e7766486806d38c6cd5785b5897863b481d56d1.exe"C:\Users\Admin\AppData\Local\Temp\06f7a5380d0d2f23e9c481071e7766486806d38c6cd5785b5897863b481d56d1.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Windows Explorer Management" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Spoofer39.exe" /rl HIGHEST /f2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Roaming\SubDir\Spoofer39.exe"C:\Users\Admin\AppData\Roaming\SubDir\Spoofer39.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 "Windows Explorer Management" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Spoofer39.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
Spoofer39.exe
Spoofer39.exe
memory/1520-133-0x0000000000680000-0x00000000009A4000-memory.dmp
memory/1520-134-0x000000001B590000-0x000000001B5A0000-memory.dmp
memory/4856-140-0x0000000002BD0000-0x0000000002BE0000-memory.dmp
memory/4856-141-0x000000001C810000-0x000000001C860000-memory.dmp
memory/4856-142-0x000000001C920000-0x000000001C9D2000-memory.dmp
memory/4856-143-0x0000000002BD0000-0x0000000002BE0000-memory.dmp