Analysis
- max time kernel
148s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
02/10/2026, 12:16
General
- Target VC_redist.x64.exe
- Size 1.3MB
- Sample261002-pffftavyhx
- 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
- Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- 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 13 IoCs
- Suspicious use of AdjustPrivilegeToken 11 IoCs
- Suspicious use of WriteProcessMemory 22 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 "nmtvje" /XML "C:\Users\Admin\AppData\Local\Temp\8df28c8a11be418eb0221bb4ac7b2456.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\aa1011dbb4674372b0747971ff47c50a.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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⤵
- Command and Scripting Interpreter: PowerShell
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\PropagationFlags\ninhsv\Opcode.exeC:\Users\Admin\AppData\Local\PropagationFlags\ninhsv\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\ninhsv\Opcode.exeC:\Users\Admin\AppData\Local\PropagationFlags\ninhsv\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\ninhsv\Opcode.exe"C:\Users\Admin\AppData\Local\PropagationFlags\ninhsv\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 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⤵
- 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
__PSScriptPolicyTest_dwkx1him.hyf.ps1
aa1011dbb4674372b0747971ff47c50a.xml
memory/1368-2243-0x0000000000400000-0x0000000000490000-memory.dmp
memory/1368-2244-0x0000000002AA0000-0x0000000002AB0000-memory.dmp
memory/1368-2245-0x0000000005140000-0x00000000051B0000-memory.dmp
memory/1368-2246-0x00000000051B0000-0x00000000052A8000-memory.dmp
memory/1368-2258-0x0000000002AA0000-0x0000000002AB0000-memory.dmp
memory/3556-69-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-63-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-25-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-37-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-61-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-103-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-101-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-127-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-125-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-123-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-121-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-119-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-129-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-117-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-115-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-113-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-111-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-109-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-107-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-105-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-99-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-97-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-95-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-91-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-89-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-87-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-85-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-65-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-81-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-77-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-75-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-73-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-71-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-7-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-93-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-79-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-33-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-67-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-83-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-57-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-55-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-53-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-51-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-47-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-45-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-43-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-41-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-39-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-35-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-59-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-49-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-31-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-29-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-27-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-23-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-17-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-15-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-13-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-11-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-10-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-21-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-2236-0x00000000056B0000-0x00000000056C0000-memory.dmp
memory/3556-19-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-5-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-2237-0x00000000059E0000-0x0000000005A88000-memory.dmp
memory/3556-4-0x00000000056C0000-0x000000000580D000-memory.dmp
memory/3556-2238-0x0000000005AE0000-0x0000000005B86000-memory.dmp
memory/3556-2239-0x0000000005950000-0x000000000599C000-memory.dmp
memory/3556-2240-0x0000000006370000-0x00000000063D6000-memory.dmp
memory/3556-2241-0x00000000056B0000-0x00000000056C0000-memory.dmp
memory/3556-2-0x0000000005DC0000-0x0000000006364000-memory.dmp
memory/3556-3-0x00000000058B0000-0x0000000005942000-memory.dmp
memory/3556-1-0x00000000056C0000-0x0000000005812000-memory.dmp
memory/3556-0-0x0000000000AF0000-0x0000000000C48000-memory.dmp
memory/4500-2248-0x000002344F6B0000-0x000002344F6D2000-memory.dmp