WindowsUpdate[.]exe

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General

Target

WindowsUpdate.exe
Size

3.4MB
MD5

7df6bb88565680e9703fa2cc8f0a2289
SHA1

23cd21800ccebdc9c1e5bf70e552fb718a9340a4
SHA256

af3a2c9ea78a30ca56fb59b58a25e6cb0b894ca0d46f6881d6a9c0547805f543
SHA512

21919ef516d5dbfdc8f63e9d86b960e999093c5d191d4ab63c61cd8777f745580916546141e512d4275055378662d60814b8011d12131cdae0bc237ef46db695
SSDEEP

49152:LB73SENWI/1lAOfAHJstZMeP6kHiKRTurwuv/bAwZsCWWHDo:9mElju47orwunsw

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
WindowsUpdate.exe

Files

WindowsUpdate.exe
.exe windows:6 windows x64 arch:x64

4f2f006e2ecf7172ad368f8289dc96c1

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

kernel32

WriteFile
WriteConsoleW
WerSetFlags
WerGetFlags
WaitForMultipleObjects
WaitForSingleObject
VirtualQuery
VirtualFree
VirtualAlloc
TlsAlloc
SwitchToThread
SuspendThread
SetWaitableTimer
SetUnhandledExceptionFilter
SetProcessPriorityBoost
SetEvent
SetErrorMode
SetConsoleCtrlHandler
ResumeThread
RaiseFailFastException
PostQueuedCompletionStatus
LoadLibraryW
LoadLibraryExW
SetThreadContext
GetThreadContext
GetSystemInfo
GetSystemDirectoryA
GetStdHandle
GetQueuedCompletionStatusEx
GetProcessAffinityMask
GetProcAddress
GetErrorMode
GetEnvironmentStringsW
GetCurrentThreadId
GetConsoleMode
FreeEnvironmentStringsW
ExitProcess
DuplicateHandle
CreateWaitableTimerExW
CreateThread
CreateIoCompletionPort
CreateFileA
CreateEventA
CloseHandle
AddVectoredExceptionHandler

Sections

.text
Size: 1.1MB - Virtual size: 1.1MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 2.2MB - Virtual size: 2.2MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 65KB - Virtual size: 418KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 27KB - Virtual size: 26KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.xdata
Size: 512B - Virtual size: 156B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.idata
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 21KB - Virtual size: 21KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.symtab
Size: 512B - Virtual size: 4B

IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

4f2f006e2ecf7172ad368f8289dc96c1

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

Sections

.text Size: 1.1MB - Virtual size: 1.1MB

.rdata Size: 2.2MB - Virtual size: 2.2MB

.data Size: 65KB - Virtual size: 418KB

.pdata Size: 27KB - Virtual size: 26KB

.xdata Size: 512B - Virtual size: 156B

.idata Size: 1KB - Virtual size: 1KB

.reloc Size: 21KB - Virtual size: 21KB

.symtab Size: 512B - Virtual size: 4B

.text
Size: 1.1MB - Virtual size: 1.1MB

.rdata
Size: 2.2MB - Virtual size: 2.2MB

.data
Size: 65KB - Virtual size: 418KB

.pdata
Size: 27KB - Virtual size: 26KB

.xdata
Size: 512B - Virtual size: 156B

.idata
Size: 1KB - Virtual size: 1KB

.reloc
Size: 21KB - Virtual size: 21KB

.symtab
Size: 512B - Virtual size: 4B