MuiUnattend[.]exe

Sharing

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General

Target

MuiUnattend.exe
Size

70KB
MD5

8396ff88c902d9bf88b7b228bfdb336b
SHA1

438352cc83261b2c0073eaf86f872287779e550d
SHA256

d9ea5682fb010233635590446ad81d9002c44511d7fb928b8764d91fd6f84905
SHA512

fa8b8cd714e4e1a826c48d5e419ab23081f6b7d554edd654ecd4a9a77bd07964b1da54af7cdbde65fb90090311181bf310e0b9a88d4c5c1e51aa590ea25abfbb
SSDEEP

1536:4xxwzjmP2sp0VczAyorX01RlwaA+U5S6LLw0GGnrwOZe4sWI7AbfFh4Ct/:B/VspoczCrXyRW75TQrGnVZzswjR/

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
MuiUnattend.exe

Files

MuiUnattend.exe
.exe windows x86

12d66cd90680a9232ad1abe81c38f4e6

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

msvcrt

_unlock
memcmp
_except_handler4_common
_initterm
__setusermatherr
_controlfp
__p__fmode
_cexit
_exit
exit
memmove
__dllonexit
_wcsnicmp
wcsncmp
__set_app_type
__wgetmainargs
_amsg_exit
__p__commode
_XcptFilter
memmove_s
wcschr
_purecall
??3@YAXPAX@Z
_onexit
?terminate@@YAXXZ
memcpy
_wcsicmp
memcpy_s
_vsnprintf
wcsrchr
wprintf
_vsnwprintf
_lock
memset

api-ms-win-core-libraryloader-l1-2-0

GetModuleHandleW
LoadLibraryExW
FreeLibrary
GetModuleHandleExW
GetModuleFileNameA
GetModuleFileNameW
GetProcAddress

api-ms-win-core-registry-l1-1-0

RegDeleteValueW
RegCloseKey
RegOpenKeyExW
RegSetValueExW
RegUnLoadKeyW
RegQueryValueExW
RegLoadKeyW
RegCreateKeyExW
RegEnumKeyExW

api-ms-win-core-synch-l1-1-0

LeaveCriticalSection
CreateSemaphoreExW
ReleaseSRWLockShared
OpenSemaphoreW
AcquireSRWLockShared
InitializeCriticalSectionEx
AcquireSRWLockExclusive
DeleteCriticalSection
ReleaseSRWLockExclusive
EnterCriticalSection
ReleaseMutex
InitializeCriticalSection
WaitForSingleObject
WaitForSingleObjectEx
ReleaseSemaphore
CreateMutexExW

api-ms-win-core-heap-l1-1-0

HeapAlloc
HeapFree
HeapSetInformation
GetProcessHeap

api-ms-win-core-errorhandling-l1-1-0

SetUnhandledExceptionFilter
GetLastError
UnhandledExceptionFilter
SetLastError

api-ms-win-core-processenvironment-l1-1-0

ExpandEnvironmentStringsW

api-ms-win-core-localization-l1-2-0

GetUserDefaultLocaleName
FormatMessageW
LocaleNameToLCID
GetLocaleInfoEx
SetUserGeoID

api-ms-win-core-string-l1-1-0

CompareStringOrdinal

api-ms-win-core-threadpool-l1-2-0

CloseThreadpoolTimer
SetThreadpoolTimer
CreateThreadpoolTimer
WaitForThreadpoolTimerCallbacks

api-ms-win-core-processthreads-l1-1-0

GetCurrentThreadId
GetCurrentProcess
OpenProcessToken
TerminateProcess
GetCurrentProcessId

sspicli

GetUserNameExW

api-ms-win-core-localization-l1-2-2

GetSystemDefaultLocaleName

api-ms-win-core-debug-l1-1-0

DebugBreak
OutputDebugStringW
IsDebuggerPresent

api-ms-win-core-handle-l1-1-0

CloseHandle

api-ms-win-core-libraryloader-l1-2-1

LoadLibraryW

api-ms-win-core-sysinfo-l1-1-0

GetSystemTimeAsFileTime
GetTickCount
GetWindowsDirectoryW

api-ms-win-core-synch-l1-2-0

Sleep

api-ms-win-core-profile-l1-1-0

QueryPerformanceCounter

api-ms-win-core-localization-private-l1-1-0

NlsUpdateLocale

ntdll

RtlAllocateHeap
RtlFreeHeap
RtlpSetPreferredUILanguages
RtlNtStatusToDosError
RtlGetUILanguageInfo

api-ms-win-core-file-l1-1-0

GetFullPathNameW
CreateFileW
CreateDirectoryW
FindFirstFileW
FindNextFileW
FindClose
GetFileAttributesExW
GetFileAttributesW

api-ms-win-core-memory-l1-1-0

MapViewOfFile
UnmapViewOfFile
CreateFileMappingW

api-ms-win-security-base-l1-1-0

AdjustTokenPrivileges
PrivilegeCheck

api-ms-win-security-lsalookup-l2-1-0

LookupPrivilegeValueW

api-ms-win-core-delayload-l1-1-1

ResolveDelayLoadedAPI

api-ms-win-core-delayload-l1-1-0

DelayLoadFailureHook

api-ms-win-core-registry-l2-1-0

RegDeleteKeyW

Sections

.text
Size: 58KB - Virtual size: 58KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.didat
Size: 512B - Virtual size: 20B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 2KB - Virtual size: 1KB

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

Sharing

General

Malware Config

Signatures

Files

12d66cd90680a9232ad1abe81c38f4e6

Headers

DLL Characteristics

File Characteristics

Imports

msvcrt

api-ms-win-core-libraryloader-l1-2-0

api-ms-win-core-registry-l1-1-0

api-ms-win-core-synch-l1-1-0

api-ms-win-core-heap-l1-1-0

api-ms-win-core-errorhandling-l1-1-0

api-ms-win-core-processenvironment-l1-1-0

api-ms-win-core-localization-l1-2-0

api-ms-win-core-string-l1-1-0

api-ms-win-core-threadpool-l1-2-0

api-ms-win-core-processthreads-l1-1-0

sspicli

api-ms-win-core-localization-l1-2-2

api-ms-win-core-debug-l1-1-0

api-ms-win-core-handle-l1-1-0

api-ms-win-core-libraryloader-l1-2-1

api-ms-win-core-sysinfo-l1-1-0

api-ms-win-core-synch-l1-2-0

api-ms-win-core-profile-l1-1-0

api-ms-win-core-localization-private-l1-1-0

ntdll

api-ms-win-core-file-l1-1-0

api-ms-win-core-memory-l1-1-0

api-ms-win-security-base-l1-1-0

api-ms-win-security-lsalookup-l2-1-0

api-ms-win-core-delayload-l1-1-1

api-ms-win-core-delayload-l1-1-0

api-ms-win-core-registry-l2-1-0

Sections

.text Size: 58KB - Virtual size: 58KB

.data Size: 512B - Virtual size: 2KB

.idata Size: 5KB - Virtual size: 4KB

.didat Size: 512B - Virtual size: 20B

.rsrc Size: 2KB - Virtual size: 1KB

.reloc Size: 3KB - Virtual size: 2KB

.text
Size: 58KB - Virtual size: 58KB

.data
Size: 512B - Virtual size: 2KB

.idata
Size: 5KB - Virtual size: 4KB

.didat
Size: 512B - Virtual size: 20B

.rsrc
Size: 2KB - Virtual size: 1KB

.reloc
Size: 3KB - Virtual size: 2KB