Microsoft Outlook安全更新[.]exe

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General

Target

Microsoft Outlook安全更新.exe
Size

7.6MB
MD5

ccf2b9730d2877f450bce6f18acae44a
SHA1

18fd38b94d21bbd154e21ef2785f3c829ac85e2b
SHA256

2d203ad2d6a7ab7ea514793c0463bf7ae40ab6409a02166bf1e94164aeb59ac0
SHA512

694419fa64436e929b878e533041f12d3d922079092f473af466c677791d9838908148d78c1e780925664fc81eec7360fd16f8f1e6662dd470fae85eb848f252
SSDEEP

98304:MyUaMQUFLASWI/I9BKs2HvPTEh5+Motu:X4FLZW6I96voh8M5

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Microsoft Outlook安全更新.exe

Files

Microsoft Outlook安全更新.exe
.exe windows:4 windows x64 arch:x64

1133021855916419291179941744eeb5

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DEBUG_STRIPPED

Imports

advapi32

SystemFunction036

bcrypt

BCryptGenRandom

kernel32

DeleteCriticalSection
EnterCriticalSection
GetCurrentThreadId
GetSystemTimeAsFileTime
GetTickCount
InitializeCriticalSection
LeaveCriticalSection
QueryPerformanceCounter
RaiseException
RtlAddFunctionTable
RtlUnwindEx
TerminateProcess
UnhandledExceptionFilter
VirtualProtect
VirtualQuery
__C_specific_handler
AcquireSRWLockExclusive
AcquireSRWLockShared
AddVectoredExceptionHandler
CloseHandle
CompareStringOrdinal
CreateFileMappingA
CreateFileW
CreateNamedPipeW
CreateProcessW
CreateThread
CreateToolhelp32Snapshot
CreateWaitableTimerExW
DeleteProcThreadAttributeList
DuplicateHandle
ExitProcess
FormatMessageW
FreeEnvironmentStringsW
FreeLibrary
GetCommandLineW
GetConsoleMode
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetEnvironmentStringsW
GetEnvironmentVariableW
GetFileAttributesW
GetFileInformationByHandle
GetFileInformationByHandleEx
GetFinalPathNameByHandleW
GetFullPathNameW
GetLastError
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleW
GetProcAddress
GetProcessHeap
GetStartupInfoA
GetStdHandle
GetSystemDirectoryW
GetWindowsDirectoryW
HeapAlloc
HeapFree
HeapReAlloc
InitOnceBeginInitialize
InitOnceComplete
InitializeProcThreadAttributeList
LoadLibraryW
MapViewOfFile
Module32FirstW
Module32NextW
MultiByteToWideChar
ReadFileEx
ReleaseSRWLockExclusive
ReleaseSRWLockShared
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
SetFileInformationByHandle
SetLastError
SetThreadStackGuarantee
SetUnhandledExceptionFilter
SetWaitableTimer
Sleep
SleepEx
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryAcquireSRWLockExclusive
UnmapViewOfFile
UpdateProcThreadAttribute
WaitForSingleObject
WriteConsoleW
WriteFileEx

msvcrt

__getmainargs
__initenv
__iob_func
__lconv_init
__set_app_type
__setusermatherr
_acmdln
_amsg_exit
_cexit
_fmode
_fpreset
_initterm
_onexit
abort
calloc
exit
fprintf
free
fwrite
malloc
signal
strncmp
vfprintf

ntdll

NtWriteFile
RtlNtStatusToDosError
memcmp
memcpy
memmove
memset
strlen

Sections

.text
Size: 304KB - Virtual size: 304KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 336B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 7.2MB - Virtual size: 7.2MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.pdata
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.xdata
Size: 12KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 2KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 120B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 16B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 21KB - Virtual size: 20KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

1133021855916419291179941744eeb5

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

bcrypt

kernel32

msvcrt

ntdll

Sections

.text Size: 304KB - Virtual size: 304KB

.data Size: 512B - Virtual size: 336B

.rdata Size: 7.2MB - Virtual size: 7.2MB

.pdata Size: 6KB - Virtual size: 6KB

.xdata Size: 12KB - Virtual size: 12KB

.bss Size: - Virtual size: 2KB

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

.CRT Size: 512B - Virtual size: 120B

.tls Size: 512B - Virtual size: 16B

.rsrc Size: 21KB - Virtual size: 20KB

.text
Size: 304KB - Virtual size: 304KB

.data
Size: 512B - Virtual size: 336B

.rdata
Size: 7.2MB - Virtual size: 7.2MB

.pdata
Size: 6KB - Virtual size: 6KB

.xdata
Size: 12KB - Virtual size: 12KB

.bss
Size: - Virtual size: 2KB

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

.CRT
Size: 512B - Virtual size: 120B

.tls
Size: 512B - Virtual size: 16B

.rsrc
Size: 21KB - Virtual size: 20KB