Static task
static1
Behavioral task
behavioral1
Sample
utkin.exe
Resource
win7-20240903-en
General
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Target
utkin.exe
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Size
2.6MB
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MD5
119891f3f60e7bba10a6b60731a8d211
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SHA1
576db62811bd9aa8c735b90851b8f872bf223248
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SHA256
ad9b276a5d2f75e7d1c6b21f95d8a7cb70f482f2621847bca4864d90753de72f
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SHA512
694f22d1c9f351e8d3d31d33c04cdb403afaf1afb45df65150298d8707c9228c05b8e5b2f7245c48dcf06270eed8dae79a51b23c9cc20470ee860e2584cec4bf
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SSDEEP
24576:V9L8hJZ4uB+Ch0lhSMXl72x+GsNompILTDyWD5Q:PL8hD4aurpompILTDyz
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource utkin.exe
Files
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utkin.exe.exe windows:6 windows x64 arch:x64
259e8414ffd4b8ab603913db518e276c
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
RtlImageDirectoryEntryToData
RtlLeaveCriticalSection
RtlEnterCriticalSection
RtlCompareMemory
NtProtectVirtualMemory
RtlImageNtHeader
NtQueryVirtualMemory
RtlGetNtVersionNumbers
kernel32
FreeEnvironmentStringsW
GetEnvironmentStringsW
VirtualFree
VirtualAlloc
GetModuleHandleW
LoadLibraryA
ReadFile
WriteFile
CreateFileW
CloseHandle
GetProcAddress
GetCurrentProcess
FlushInstructionCache
VirtualQuery
WriteProcessMemory
EnterCriticalSection
GetModuleFileNameW
LeaveCriticalSection
GetModuleHandleA
MultiByteToWideChar
GetWindowsDirectoryW
ExitProcess
WideCharToMultiByte
GetLastError
SetLastError
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
CreateThread
ExitThread
FreeLibrary
FreeLibraryAndExitThread
GetModuleHandleExW
GetCommandLineA
GetCommandLineW
HeapAlloc
HeapFree
GetCurrentThreadId
DeleteCriticalSection
GetStdHandle
GetFileType
GetStartupInfoW
RaiseException
FlsAlloc
FlsGetValue
FlsSetValue
FlsFree
InitializeCriticalSectionAndSpinCount
GetSystemTimeAsFileTime
LoadLibraryExW
LCMapStringW
GetLocaleInfoW
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
HeapReAlloc
HeapSize
GetProcessHeap
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
GetStringTypeW
GetFileSizeEx
SetFilePointerEx
SetStdHandle
FlushFileBuffers
GetConsoleOutputCP
GetConsoleMode
ReadConsoleW
WriteConsoleW
GetCurrentProcessId
InitializeSListHead
RtlUnwindEx
RtlPcToFileHeader
RtlUnwind
EncodePointer
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
WakeAllConditionVariable
QueryPerformanceCounter
LCMapStringEx
DecodePointer
InitializeCriticalSectionEx
GetFileInformationByHandleEx
FormatMessageA
QueryPerformanceFrequency
ReleaseSRWLockExclusive
AcquireSRWLockExclusive
TryAcquireSRWLockExclusive
Sleep
WaitForSingleObjectEx
GetExitCodeThread
LocalFree
GetLocaleInfoEx
FindClose
FindFirstFileW
FindFirstFileExW
FindNextFileW
GetFileAttributesExW
AreFileApisANSI
user32
LoadAcceleratorsW
LoadAcceleratorsA
advapi32
GetTokenInformation
OpenProcessToken
oleaut32
SysAllocString
SafeArrayPutElement
SafeArrayUnaccessData
SafeArrayCreate
SafeArrayCreateVector
SafeArrayAccessData
SysFreeString
SafeArrayDestroy
mscoree
CLRCreateInstance
Sections
.text Size: 307KB - Virtual size: 307KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 2.3MB - Virtual size: 2.3MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 6KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 16KB - Virtual size: 16KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 512B - Virtual size: 480B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ