Analysis
- max time kernel
148s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
08/08/2026, 02:37
General
- Target pulse.exe
- Size 4.4MB
- Sample260808-c4brbaydmb
- SHA256 77007f912cdb665b568b37252e26666bc0baa052207f9fb2ec9b8789c7fb02de
Malware Config
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
- Looks for VMWare Tools registry key 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Themida packer 10 IoCs
Detects Themida, an advanced Windows software protection system.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- 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.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\pulse.exe"C:\Users\Admin\AppData\Local\Temp\pulse.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\pulse.exe" MD5 | find /i /v "md5" | find /i /v "certutil"2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\certutil.execertutil -hashfile "C:\Users\Admin\AppData\Local\Temp\pulse.exe" MD53⤵
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C:\Windows\system32\find.exefind /i /v "md5"3⤵
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C:\Windows\system32\find.exefind /i /v "certutil"3⤵
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/4148-0-0x0000000140000000-0x0000000140B39000-memory.dmp
memory/4148-1-0x0000000140000000-0x0000000140B39000-memory.dmp
memory/4148-2-0x0000000140000000-0x0000000140B39000-memory.dmp
memory/4148-3-0x0000000140000000-0x0000000140B39000-memory.dmp
memory/4148-4-0x0000000140000000-0x0000000140B39000-memory.dmp
memory/4148-5-0x0000000140000000-0x0000000140B39000-memory.dmp
memory/4148-6-0x0000000140000000-0x0000000140B39000-memory.dmp
memory/4148-7-0x0000000140000000-0x0000000140B39000-memory.dmp
memory/4148-8-0x0000000140000000-0x0000000140B39000-memory.dmp
memory/4148-9-0x0000000140000000-0x0000000140B39000-memory.dmp