WinUpdat[.]dll

Sharing

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General

Target

WinUpdat.dll
Size

313KB
MD5

e1ebf9e6f772ca35bf44311f504715cc
SHA1

e5b228d75b3b8796e1a6efeeb6ee9277f6816db9
SHA256

ea72011929dece4684a2dcb5b76f34cef437dbe50306f19c531d632bf26e7f32
SHA512

d0941832f513a514694e833a2e7e862c6600d70e8657ad9cacca54a9c6aef14d9c72afa6ec942da298d5a1c76e9356baedd5de6eb4395130ebd89fae97a361f6
SSDEEP

3072:xwcaNhyVEE21IKIxAK8q01CQ8Wc4RrRLgjvj0DramwMzRetuj39GsB2PISuRLWmC:F2k8CQ8x49lgGrtVlB39UPuVdKBj

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
WinUpdat.dll

Files

WinUpdat.dll
.dll windows:6 windows x86 arch:x86

4bad3bc1bf8e5d1161dcfe7b97c81b4e

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

Imports

kernel32

WaitForSingleObject
ResumeThread
UnmapViewOfFile
CreateThread
CreateFileMappingW
MapViewOfFile
Sleep
ExitProcess
VirtualProtect
HeapFree
VirtualFree
Wow64GetThreadContext
LoadLibraryA
GetNativeSystemInfo
HeapAlloc
GetProcAddress
GetProcessHeap
FreeLibrary
IsBadReadPtr
GetModuleHandleA
CreateFileW
DecodePointer
Wow64SetThreadContext
GetLastError
CloseHandle
FindClose
FindNextFileW
VirtualAlloc
FindFirstFileW
GetConsoleMode
GetConsoleCP
WriteFile
FlushFileBuffers
HeapSize
SetStdHandle
GetStringTypeW
SetFilePointerEx
SetEnvironmentVariableW
FreeEnvironmentStringsW
GetEnvironmentStringsW
WideCharToMultiByte
MultiByteToWideChar
GetCommandLineW
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
RtlUnwind
RaiseException
InterlockedFlushSList
SetLastError
EncodePointer
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
LoadLibraryExW
GetModuleHandleExW
GetModuleFileNameW
GetStdHandle
GetFileType
GetTimeZoneInformation
CompareStringW
LCMapStringW
HeapReAlloc
FindFirstFileExW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
GetCommandLineA
WriteConsoleW

user32

wsprintfW
wsprintfA

advapi32

RegQueryValueExA
RegQueryInfoKeyA
RegOpenKeyExA
RegEnumKeyExA
RegOpenKeyExW
RegCloseKey

shell32

SHGetSpecialFolderPathW

winhttp

WinHttpSetOption
WinHttpCloseHandle
WinHttpSendRequest
WinHttpReadData
WinHttpSetTimeouts
WinHttpConnect
WinHttpCrackUrl
WinHttpQueryDataAvailable
WinHttpQueryHeaders
WinHttpOpen
WinHttpOpenRequest
WinHttpReceiveResponse
WinHttpCheckPlatform
WinHttpSetCredentials

Exports

Exports

StartA

Sections

.text
Size: 196KB - Virtual size: 195KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 31KB - Virtual size: 30KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 4KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 71KB - Virtual size: 70KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 9KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

4bad3bc1bf8e5d1161dcfe7b97c81b4e

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

advapi32

shell32

winhttp

Exports

Exports

Sections

.text Size: 196KB - Virtual size: 195KB

.rdata Size: 31KB - Virtual size: 30KB

.data Size: 4KB - Virtual size: 7KB

.rsrc Size: 71KB - Virtual size: 70KB

.reloc Size: 9KB - Virtual size: 9KB

.text
Size: 196KB - Virtual size: 195KB

.rdata
Size: 31KB - Virtual size: 30KB

.data
Size: 4KB - Virtual size: 7KB

.rsrc
Size: 71KB - Virtual size: 70KB

.reloc
Size: 9KB - Virtual size: 9KB