Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
23/07/2026, 04:46
General
- Target Tax-Number52563.exe
- Size 324KB
- Sample260723-fd1vasdr5t
- 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 22 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
3f6ea2149cf3a5c1.tmp
Tax-Number52563.exe
xkpsm.sys
memory/2236-2-0x0000000000010000-0x0000000000018000-memory.dmp
memory/3204-69-0x00000000058B0000-0x0000000005916000-memory.dmp
memory/3204-83-0x0000000005AC0000-0x0000000005AD0000-memory.dmp
memory/3204-74-0x0000000006890000-0x000000000689A000-memory.dmp
memory/3204-73-0x00000000068B0000-0x0000000006942000-memory.dmp
memory/3204-70-0x0000000005AC0000-0x0000000005AD0000-memory.dmp
memory/3204-67-0x0000000001010000-0x0000000001350000-memory.dmp
memory/3204-68-0x0000000005E60000-0x0000000006404000-memory.dmp
memory/3332-58-0x00007FFD30A10000-0x00007FFD30B3A000-memory.dmp
memory/3332-59-0x00007FFD30110000-0x00007FFD30465000-memory.dmp
memory/3332-57-0x00007FFD30EA0000-0x00007FFD30F4C000-memory.dmp
memory/3332-56-0x00007FFD30470000-0x00007FFD3052E000-memory.dmp
memory/3332-55-0x00007FFD319D0000-0x00007FFD31BC5000-memory.dmp
memory/3344-75-0x00007FFD319D0000-0x00007FFD31BC5000-memory.dmp
memory/3344-79-0x00007FFD30110000-0x00007FFD30465000-memory.dmp
memory/3344-78-0x00007FFD30A10000-0x00007FFD30B3A000-memory.dmp
memory/3344-77-0x00007FFD30EA0000-0x00007FFD30F4C000-memory.dmp
memory/3344-76-0x00007FFD30470000-0x00007FFD3052E000-memory.dmp