Analysis
- max time kernel
149s - max time network
152s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
30/07/2026, 09:34
General
- Target Tax-Number52563.exe
- Size 324KB
- Sample260730-lj1dlsfa87
- SHA256 1ffc8bde92758bc0d2ddcc5a6bb78c73b6409429e52d62191f25afa8ebfad84a
Malware Config
Signatures
- Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Family: StormKitty
StormKitty is an open source info stealer written in C#.
- Async RAT payload 1 IoCs
- StormKitty payload 2 IoCs
- Executes dropped EXE 4 IoCs
- Loads dropped DLL 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- 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.
- Suspicious behavior: EnumeratesProcesses 23 IoCs
- Suspicious behavior: LoadsDriver 2 IoCs
- Suspicious behavior: MapViewOfSection 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Tax-Number52563.exe"C:\Users\Admin\AppData\Local\Temp\Tax-Number52563.exe"1⤵
- Adds Run key to start application
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
-
C:\Windows\Temp\xkpsm.sysC:\Windows\Temp\xkpsm.sys1⤵
- Executes dropped EXE
-
C:\Windows\system32\cmd.exe"cmd /c cd /d "C:\Users\Admin\AppData\Roaming\USB30IYTRBG" & "C:\Users\Admin\AppData\Roaming\USB30IYTRBG\Tax-Number52563.exe""1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\USB30IYTRBG\Tax-Number52563.exe"C:\Users\Admin\AppData\Roaming\USB30IYTRBG\Tax-Number52563.exe""2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
ca004fa5b73e46a0.tmp
Tax-Number52563.exe
xkpsm.sys
memory/388-2-0x0000000000010000-0x0000000000018000-memory.dmp
memory/1716-68-0x00007FFA9B5C0000-0x00007FFA9B67D000-memory.dmp
memory/1716-69-0x00007FFA9C610000-0x00007FFA9C6BE000-memory.dmp
memory/1716-71-0x00007FFA9B0F0000-0x00007FFA9B468000-memory.dmp
memory/1716-70-0x00007FFA9A610000-0x00007FFA9A7AA000-memory.dmp
memory/1716-67-0x00007FFA9C740000-0x00007FFA9C949000-memory.dmp
memory/4572-60-0x0000000005860000-0x0000000005E06000-memory.dmp
memory/4572-59-0x00000000007B0000-0x0000000000AF0000-memory.dmp
memory/4572-61-0x0000000005210000-0x0000000005276000-memory.dmp
memory/4572-62-0x0000000005200000-0x0000000005210000-memory.dmp
memory/4572-65-0x00000000062B0000-0x0000000006342000-memory.dmp
memory/4572-66-0x0000000006230000-0x000000000623A000-memory.dmp
memory/4572-75-0x0000000005200000-0x0000000005210000-memory.dmp
memory/4928-51-0x00007FFA9B0F0000-0x00007FFA9B468000-memory.dmp
memory/4928-50-0x00007FFA9A610000-0x00007FFA9A7AA000-memory.dmp
memory/4928-49-0x00007FFA9C610000-0x00007FFA9C6BE000-memory.dmp
memory/4928-48-0x00007FFA9B5C0000-0x00007FFA9B67D000-memory.dmp
memory/4928-47-0x00007FFA9C740000-0x00007FFA9C949000-memory.dmp