Analysis
- max time kernel
148s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
04/08/2026, 11:17
General
- Target 9c48194be0eaf1b4e4066243f7bda8eae1cd3d427515c201beacce5759d42462.exe
- Size 3.2MB
- Sample260804-nd143adm4y
- SHA256 9c48194be0eaf1b4e4066243f7bda8eae1cd3d427515c201beacce5759d42462
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 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 2 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- Delays execution with timeout.exe 1 IoCs
- 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 41 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 5 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\9c48194be0eaf1b4e4066243f7bda8eae1cd3d427515c201beacce5759d42462.exe"C:\Users\Admin\AppData\Local\Temp\9c48194be0eaf1b4e4066243f7bda8eae1cd3d427515c201beacce5759d42462.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "BIn-fetcher-by-skimo" /tr '"C:\Users\Admin\AppData\Roaming\BIn-fetcher-by-skimo.exe"' & exit2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "BIn-fetcher-by-skimo" /tr '"C:\Users\Admin\AppData\Roaming\BIn-fetcher-by-skimo.exe"'3⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpD3B1.tmp.bat""2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
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C:\Users\Admin\AppData\Roaming\BIn-fetcher-by-skimo.exe"C:\Users\Admin\AppData\Roaming\BIn-fetcher-by-skimo.exe"3⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Roaming\BIn-fetcher-by-skimo.exe"C:\Users\Admin\AppData\Roaming\BIn-fetcher-by-skimo.exe"1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
tmpD3B1.tmp.bat
BIn-fetcher-by-skimo.exe
memory/5808-0-0x00007FFD5EB3F000-0x00007FFD5EB40000-memory.dmp
memory/5808-1-0x00000000005A0000-0x00000000008DE000-memory.dmp
memory/5808-2-0x00007FFD5E9B0000-0x00007FFD5F354000-memory.dmp
memory/5808-3-0x00007FFD5E9B0000-0x00007FFD5F354000-memory.dmp
memory/5808-4-0x00007FFD5E9B0000-0x00007FFD5F354000-memory.dmp
memory/5808-5-0x00007FFD5E9B0000-0x00007FFD5F354000-memory.dmp
memory/5808-6-0x00007FFD5E9B0000-0x00007FFD5F354000-memory.dmp
memory/5808-7-0x00007FFD5E9B0000-0x00007FFD5F354000-memory.dmp
memory/5808-12-0x00007FFD5E9B0000-0x00007FFD5F354000-memory.dmp