WindowsUpdate[.]exe

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General

Target

WindowsUpdate.exe
Size

281KB
MD5

072e0e2ceb7f930ef411b2960105d231
SHA1

bbc26ba9a9d71adb18adbd55442ba716602db624
SHA256

3bca48113aa84355dcafd08a62c93206b25bebbdc4bbf3e06480aea0bba04873
SHA512

03101294c6bf606bf97420d29260795f0e90fd73f18a78ab6a0a8684a16892edd7c74b63f5c5eee3bd93e6eab598e74697fa55345ac281695259eb60e0602e85
SSDEEP

6144:mCwWw71dYKBBT5QqAvja5RWaGfxuv0IuuRmcYQrmEE:OWyaKBBT5QqmjIYZuvHu1ea

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
WindowsUpdate.exe

Files

WindowsUpdate.exe
.exe windows:4 windows x64

17b461a082950fc6332228572138b80c

Headers

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

kernel32

CloseHandle
ConnectNamedPipe
CreateFileA
CreateNamedPipeA
CreateThread
DeleteCriticalSection
EnterCriticalSection
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetLastError
GetModuleHandleA
GetProcAddress
GetStartupInfoA
GetSystemTimeAsFileTime
GetTickCount
InitializeCriticalSection
LeaveCriticalSection
LoadLibraryW
QueryPerformanceCounter
ReadFile
RtlAddFunctionTable
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
SetUnhandledExceptionFilter
Sleep
TerminateProcess
TlsGetValue
UnhandledExceptionFilter
VirtualAlloc
VirtualProtect
VirtualQuery
WriteFile

msvcrt

__C_specific_handler
__dllonexit
__getmainargs
__initenv
__iob_func
__lconv_init
__set_app_type
__setusermatherr
_acmdln
_amsg_exit
_cexit
_fmode
_initterm
_lock
_onexit
_unlock
abort
calloc
exit
fprintf
free
fwrite
malloc
memcpy
signal
sprintf
strlen
strncmp
vfprintf

Sections

.text
Size: 8KB - Virtual size: 8KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 265KB - Virtual size: 265KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 1024B - Virtual size: 720B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.pdata
Size: 1024B - Virtual size: 636B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.xdata
Size: 1024B - Virtual size: 568B

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: 2KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 104B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 72B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

Files

17b461a082950fc6332228572138b80c

Headers

File Characteristics

Imports

kernel32

msvcrt

Sections

.text Size: 8KB - Virtual size: 8KB

.data Size: 265KB - Virtual size: 265KB

.rdata Size: 1024B - Virtual size: 720B

.pdata Size: 1024B - Virtual size: 636B

.xdata Size: 1024B - Virtual size: 568B

.bss Size: - Virtual size: 2KB

.idata Size: 2KB - Virtual size: 2KB

.CRT Size: 512B - Virtual size: 104B

.tls Size: 512B - Virtual size: 72B

.text
Size: 8KB - Virtual size: 8KB

.data
Size: 265KB - Virtual size: 265KB

.rdata
Size: 1024B - Virtual size: 720B

.pdata
Size: 1024B - Virtual size: 636B

.xdata
Size: 1024B - Virtual size: 568B

.bss
Size: - Virtual size: 2KB

.idata
Size: 2KB - Virtual size: 2KB

.CRT
Size: 512B - Virtual size: 104B

.tls
Size: 512B - Virtual size: 72B