Analysis
- max time kernel
149s - max time network
143s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
19/08/2026, 12:51
General
- Target a.exe
- Size 8.4MB
- Sample260819-p3ta7abl2v
- SHA256 40b751e9f93c8dec58c01a52bba714bf89500db856610287d3826fe41736b15a
Malware Config
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- Downloads MZ/PE file 6 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Loads dropped DLL 7 IoCs
- Themida packer 3 IoCs
Detects Themida, an advanced Windows software protection system.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Enumerates system info in registry 2 TTPs 4 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\a.exe"C:\Users\Admin\AppData\Local\Temp\a.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Downloads MZ/PE file
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /target:exe /out:"C:\Users\Admin\AppData\Local\Temp\a.exe" "C:\Users\Admin\AppData\Local\Temp\guardian_src_1ea877495f68481fa039e4a81e63ae7b.cs"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES46D3.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC7E54F40E38D74C7A946ABFDE6EDB82EF.TMP"3⤵
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
RES46D3.tmp
libcrypto-3-x64.dll
libcurl.dll
libssl-3-x64.dll
niggakernel.dll
zlib1.dll
CSC7E54F40E38D74C7A946ABFDE6EDB82EF.TMP
guardian_src_1ea877495f68481fa039e4a81e63ae7b.cs
memory/5568-22-0x0000000003670000-0x000000000367A000-memory.dmp
memory/5568-28-0x0000000000400000-0x000000000141E000-memory.dmp
memory/5568-11-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/5568-9-0x0000000000400000-0x000000000141E000-memory.dmp
memory/5568-19-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/5568-20-0x000000001E380000-0x000000001E626000-memory.dmp
memory/5568-24-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/5568-23-0x000000001F030000-0x000000001F24C000-memory.dmp
memory/5568-0-0x0000000000400000-0x000000000141E000-memory.dmp
memory/5568-21-0x0000000003660000-0x0000000003668000-memory.dmp
memory/5568-25-0x0000000022EA0000-0x0000000022EA8000-memory.dmp
memory/5568-26-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/5568-27-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/5568-13-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/5568-30-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/5568-31-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/5568-32-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/5568-33-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/5568-8-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/5568-7-0x0000000000400000-0x000000000141E000-memory.dmp
memory/5568-6-0x00007FFA8500F000-0x00007FFA85010000-memory.dmp
memory/5568-2-0x00007FFA80030000-0x00007FFA80031000-memory.dmp
memory/5568-1-0x00007FFA80000000-0x00007FFA80002000-memory.dmp
memory/5568-73-0x0000000024430000-0x0000000024B4C000-memory.dmp
memory/5568-74-0x0000000000400000-0x000000000141E000-memory.dmp
memory/5568-75-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp