Static task
static1
Behavioral task
behavioral1
Sample
vopa.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
vopa.exe
Resource
win10v2004-20230703-en
General
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Target
vopa.exe
-
Size
10.7MB
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MD5
1d3ec863efb0793f0385fb91b8901c71
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SHA1
9971e514fb7025e603fc44598de4d2089c828ffc
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SHA256
4bbed8730b2e0db283de1e4666464cba7b5285e6cd87554155f1b90713b002cf
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SHA512
684b235dc1a270a503ff1c2c5cdd7abd734d7552c0f3f52d463526bd961a46de5ac659246f60496068b4f969a154a980b582efbd9b3e405cb21dd51b9b0b375c
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SSDEEP
49152:9/S1qvyUTCSUQ8JKEt2vY7ALsLuGgFRXSXyP0WZ4DcEvKReU0xta5kXM/fUXsNw6:R
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource vopa.exe
Files
-
vopa.exe.exe windows x64
d665cdaf3afa1ac9abada55dfbcc359e
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
ntdll
NtWriteFile
RtlLookupFunctionEntry
NtReadVirtualMemory
RtlNtStatusToDosError
RtlVirtualUnwind
RtlCaptureContext
NtWaitForSingleObject
NtCreateThreadEx
NtProtectVirtualMemory
NtWriteVirtualMemory
NtAllocateVirtualMemory
kernel32
InitializeSListHead
GetCurrentThreadId
UnhandledExceptionFilter
IsDebuggerPresent
SetUnhandledExceptionFilter
GetSystemTimeAsFileTime
TlsSetValue
GetConsoleWindow
LoadLibraryA
GetProcAddress
WriteProcessMemory
CreateProcessA
CreateFileW
CreateFileMappingW
CloseHandle
MapViewOfFile
UnmapViewOfFile
GetCurrentProcess
ReleaseSRWLockExclusive
ReleaseMutex
ReleaseSRWLockShared
GetLastError
AddVectoredExceptionHandler
SetThreadStackGuarantee
AcquireSRWLockExclusive
GetCurrentThread
SetLastError
GetCurrentDirectoryW
GetEnvironmentVariableW
GetStdHandle
GetCurrentProcessId
WaitForSingleObject
TryAcquireSRWLockExclusive
QueryPerformanceCounter
HeapAlloc
GetProcessHeap
HeapFree
HeapReAlloc
AcquireSRWLockShared
WaitForSingleObjectEx
CreateMutexA
GetModuleHandleA
GetConsoleMode
GetModuleHandleW
FormatMessageW
ExitProcess
IsProcessorFeaturePresent
MultiByteToWideChar
WriteConsoleW
TlsGetValue
psapi
EnumProcessModulesEx
GetModuleBaseNameW
user32
ShowWindow
SetWindowPos
vcruntime140
__C_specific_handler
__current_exception
memcpy
memcmp
__current_exception_context
memmove
_CxxThrowException
memset
__CxxFrameHandler3
api-ms-win-crt-math-l1-1-0
__setusermatherr
api-ms-win-crt-runtime-l1-1-0
_crt_atexit
_seh_filter_exe
_set_app_type
terminate
_configure_narrow_argv
_initialize_narrow_environment
_initterm
_initterm_e
exit
_exit
_register_onexit_function
__p___argc
__p___argv
_cexit
_c_exit
_register_thread_local_exe_atexit_callback
_get_initial_narrow_environment
_initialize_onexit_table
api-ms-win-crt-stdio-l1-1-0
_set_fmode
__p__commode
api-ms-win-crt-locale-l1-1-0
_configthreadlocale
api-ms-win-crt-heap-l1-1-0
_set_new_mode
free
Sections
.text Size: 126KB - Virtual size: 126KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 10.5MB - Virtual size: 10.5MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 512B - Virtual size: 808B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 5KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ