SystemUpdate[.]exe

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General

Target

SystemUpdate.exe
Size

38.5MB
MD5

812fb887e9dba4a5484fef3e0affe368
SHA1

a96a4132b8f03810d0c3862fa90108da8cc0bce6
SHA256

5d99f5bf54c9d7728bbfd50f75b462d453130fff7df37a039cb8cfd490b2e397
SHA512

a615394160fdec370b37885291c23d6584cde8287a618d3eda782fa9b9166abd733902f5f800657c801ef47bd1b4201b90782748c9057dca57dc0a579b65b44e
SSDEEP

786432:gHrt2V0YlUNf5ajZV3p3vv8gt7usRxcJ+519jtD+/K48NJtvXdlxn8C4L:gL4uEUNf5WZggt5cmBRUK48rPlxC

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
SystemUpdate.exe

Files

SystemUpdate.exe
.exe windows:4 windows x64 arch:x64

ae21233514eb2e47a60a61ce2f15abb9

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

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
CopyFileW
CreateDirectoryW
CreateFileMappingW
CreateFileW
CreateProcessW
DeleteCriticalSection
DeleteFileW
EnterCriticalSection
FindResourceA
FormatMessageA
FreeLibrary
GenerateConsoleCtrlEvent
GetCommandLineW
GetCurrentProcessId
GetEnvironmentVariableW
GetExitCodeProcess
GetFileAttributesW
GetFileSize
GetLastError
GetModuleFileNameW
GetModuleHandleA
GetProcAddress
GetProcessId
GetStartupInfoW
GetStdHandle
GetSystemTimeAsFileTime
GetTempPathW
InitializeCriticalSection
IsDBCSLeadByteEx
LeaveCriticalSection
LoadLibraryA
LoadResource
LockResource
MapViewOfFile
MultiByteToWideChar
ReadFile
SetConsoleCtrlHandler
SetEnvironmentVariableW
SetUnhandledExceptionFilter
SizeofResource
Sleep
TerminateProcess
TlsGetValue
UnmapViewOfFile
VirtualProtect
VirtualQuery
WaitForSingleObject
WideCharToMultiByte
WriteFile

msvcrt

__C_specific_handler
___lc_codepage_func
___mb_cur_max_func
__iob_func
__set_app_type
__setusermatherr
__wargv
__wgetmainargs
__winitenv
_amsg_exit
_cexit
_commode
_errno
_fmode
_initterm
_lock
_onexit
_unlock
_wcmdln
_wcsdup
_wcsicmp
_wrename
abort
calloc
exit
fprintf
fputc
free
fwrite
localeconv
malloc
mbstowcs
memcpy
memmove
memset
puts
signal
strerror
strlen
strncmp
vfprintf
wcschr
wcscmp
wcslen
wcsncmp

shell32

CommandLineToArgvW
SHFileOperationW
SHGetFolderPathW

Sections

.text
Size: 108KB - Virtual size: 108KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 272B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 11KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 143KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 96B

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: 38.4MB - Virtual size: 38.4MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 148B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

ae21233514eb2e47a60a61ce2f15abb9

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

msvcrt

shell32

Sections

.text Size: 108KB - Virtual size: 108KB

.data Size: 512B - Virtual size: 272B

.rdata Size: 11KB - Virtual size: 10KB

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

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

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

.bss Size: - Virtual size: 143KB

.idata Size: 4KB - Virtual size: 3KB

.CRT Size: 512B - Virtual size: 96B

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

.rsrc Size: 38.4MB - Virtual size: 38.4MB

.reloc Size: 512B - Virtual size: 148B

.text
Size: 108KB - Virtual size: 108KB

.data
Size: 512B - Virtual size: 272B

.rdata
Size: 11KB - Virtual size: 10KB

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

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

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

.bss
Size: - Virtual size: 143KB

.idata
Size: 4KB - Virtual size: 3KB

.CRT
Size: 512B - Virtual size: 96B

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

.rsrc
Size: 38.4MB - Virtual size: 38.4MB

.reloc
Size: 512B - Virtual size: 148B