Analysis
- max time kernel
149s - max time network
133s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
21/08/2026, 04:31
General
- Target FSB-Connect-718 (1).exe
- Size 34KB
- Sample260821-e5e68sw1bt
- SHA256 9e278f70acd106ec131683744cbb4e7bd197afa30309723f54e96a6a295933e0
Malware Config
Signatures
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- 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 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 2 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\FSB-Connect-718 (1).exe"C:\Users\Admin\AppData\Local\Temp\FSB-Connect-718 (1).exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\FSB-Connect-718 (1).exe"C:\Users\Admin\AppData\Local\Temp\FSB-Connect-718 (1).exe" --watchdog2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /query /tn "MicrosoftUpdate718"3⤵
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /delete /tn "MicrosoftUpdate718" /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\uninstall.bat" "3⤵
- Executes a command shell one-liner
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /query /tn "MicrosoftUpdate718"2⤵
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "MicrosoftUpdate718" /tr "C:\Users\Admin\AppData\Local\Temp\FSB-Connect-718 (1).exe" /sc onlogon /ru SYSTEM /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
uninstall.bat
memory/3316-8-0x00007FF804BF0000-0x00007FF805594000-memory.dmp
memory/3316-14-0x00007FF804BF0000-0x00007FF805594000-memory.dmp
memory/3316-3-0x00007FF804BF0000-0x00007FF805594000-memory.dmp
memory/3316-4-0x00007FF804BF0000-0x00007FF805594000-memory.dmp
memory/3316-20-0x00007FF804BF0000-0x00007FF805594000-memory.dmp
memory/3316-1-0x00000000007D0000-0x00000000007E0000-memory.dmp
memory/3316-7-0x000000001BA40000-0x000000001BC02000-memory.dmp
memory/3316-0-0x00007FF804D7F000-0x00007FF804D80000-memory.dmp
memory/3316-2-0x00007FF804BF0000-0x00007FF805594000-memory.dmp
memory/3316-10-0x00007FF804BF0000-0x00007FF805594000-memory.dmp
memory/3316-11-0x00007FF804BF0000-0x00007FF805594000-memory.dmp
memory/3316-12-0x000000001D900000-0x000000001DE28000-memory.dmp
memory/3316-13-0x00007FF804BF0000-0x00007FF805594000-memory.dmp
memory/4940-9-0x00007FF804BF0000-0x00007FF805594000-memory.dmp
memory/4940-6-0x00007FF804BF0000-0x00007FF805594000-memory.dmp
memory/4940-5-0x00007FF804BF0000-0x00007FF805594000-memory.dmp
memory/4940-22-0x00007FF804BF0000-0x00007FF805594000-memory.dmp