Update[.]exe | Triage

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General

Target

Update.exe
Size

684KB
MD5

d2f2fe4f3aeb1188ea7c68f915d20117
SHA1

f89b189901d81b6fdbb769f5c766753bf2ffa28b
SHA256

cf67a0a685630f901e1b515b810c22ba9ade3d8a327a4e9fb94357a292314a0e
SHA512

ee37dd1012899a8edca8a19e0954aa0f406c23978d62b2759880267e53f93c94191454c7a8f72afca0fe444bbd42053e8a1f6f1fc43fe86334a138265f2a042f
SSDEEP

12288:nm0tVq4jDueUMqWNjWAsp9JnCqM0RtAu/JhOujXfqAmZgOGI:nVU4jDueUWIAGJNr/bOn

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Update.exe

Files

Update.exe
.exe windows:6 windows x64

425a6f69a4fe7f28be76d0cb6411c5a3

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

VerSetConditionMask
VerifyVersionInfoW
CreateFileA
GetFileSizeEx
IsDebuggerPresent
InitializeSListHead
IsProcessorFeaturePresent
TerminateProcess
GetCurrentProcess
SetUnhandledExceptionFilter
SleepEx
WaitForMultipleObjects
PeekNamedPipe
GetFileType
GetStdHandle
GetCurrentProcessId
GetEnvironmentVariableA
WaitForSingleObjectEx
MoveFileExA
FormatMessageW
SetLastError
LoadLibraryA
GetProcAddress
GetModuleHandleA
FreeLibrary
GetSystemDirectoryA
DeleteCriticalSection
InitializeCriticalSectionEx
LeaveCriticalSection
EnterCriticalSection
GetTickCount
QueryPerformanceCounter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
GetCPInfo
CompareStringEx
GetStringTypeW
GetSystemTimeAsFileTime
LCMapStringEx
DecodePointer
EncodePointer
GetFileInformationByHandleEx
GetModuleHandleW
AreFileApisANSI
GetFileAttributesExW
FindNextFileW
FindFirstFileExW
FindFirstFileW
FindClose
WideCharToMultiByte
GetComputerNameA
Sleep
MultiByteToWideChar
GetDriveTypeA
GetLogicalDrives
GlobalMemoryStatusEx
GetProcessHeap
K32EnumProcesses
HeapAlloc
GetSystemInfo
CloseHandle
GetLastError
CreateFileW
GetTempPathW
WriteFile
HeapFree
ReadFile
GetLocaleInfoEx
LocalFree
GetCurrentThreadId
FormatMessageA
GetStartupInfoW

user32

wsprintfW

advapi32

CryptDestroyKey
RegOpenKeyExA
RegQueryInfoKeyA
RegCloseKey
RegOpenKeyExW
RegSetValueExW
CryptAcquireContextA
CryptReleaseContext
CryptGetHashParam
CryptCreateHash
CryptHashData
CryptDestroyHash
CryptImportKey
CryptEncrypt

ws2_32

ntohs
WSASetLastError
setsockopt
WSAIoctl
__WSAFDIsSet
select
accept
WSAEventSelect
WSACreateEvent
bind
getsockname
htonl
WSACloseEvent
listen
recvfrom
getsockopt
sendto
getpeername
ioctlsocket
WSASocketW
inet_pton
gethostname
WSAConnect
htons
WSACleanup
closesocket
getaddrinfo
WSAStartup
send
socket
connect
recv
freeaddrinfo
WSAGetLastError
WSAEnumNetworkEvents

normaliz

IdnToAscii

wldap32

ord217
ord143
ord50
ord46
ord45
ord26
ord27
ord32
ord33
ord41
ord35
ord79
ord30
ord200
ord22
ord301
ord211
ord60

crypt32

CertFindCertificateInStore
CertEnumCertificatesInStore
CertCloseStore
CertOpenStore
CertFreeCertificateChain
CertFreeCertificateContext
CryptStringToBinaryA
PFXImportCertStore
CryptDecodeObjectEx
CertAddCertificateContextToStore
CertFindExtension
CertGetNameStringA
CryptQueryObject
CertCreateCertificateChainEngine
CertFreeCertificateChainEngine
CertGetCertificateChain

bcrypt

BCryptGenRandom

vcruntime140_1

__CxxFrameHandler4

vcruntime140

__C_specific_handler
__current_exception_context
__std_exception_copy
__current_exception
__uncaught_exception
_CxxThrowException
memcmp
memmove
memset
memchr
memcpy
strrchr
_purecall
strchr
__std_exception_destroy
__std_terminate
strstr

api-ms-win-crt-stdio-l1-1-0

setvbuf
ungetc
fgetc
fsetpos
fread
_fseeki64
__stdio_common_vsprintf_s
_get_stream_buffer_pointers
fclose
_pclose
_read
fgets
fflush
_write
_popen
fputc
_fsopen
fwrite
_set_fmode
__stdio_common_vfprintf
__acrt_iob_func
fseek
_lseeki64
fputs
__p__commode
_fileno
_open
fopen
__stdio_common_vsprintf
fgetpos
__stdio_common_vsscanf
feof
ftell
_close

api-ms-win-crt-utility-l1-1-0

qsort
rand
srand

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

free
malloc
realloc
calloc
_set_new_mode
_callnewh

api-ms-win-crt-filesystem-l1-1-0

_access
_unlock_file
_stat64
_fstat64
_lock_file
remove
_unlink

api-ms-win-crt-runtime-l1-1-0

__sys_errlist
__sys_nerr
_initialize_onexit_table
_register_onexit_function
_crt_atexit
_seh_filter_exe
_register_thread_local_exe_atexit_callback
exit
_c_exit
abort
_configure_narrow_argv
_cexit
_exit
_initialize_narrow_environment
_get_narrow_winmain_command_line
_initterm
_beginthreadex
_initterm_e
_invalid_parameter_noinfo_noreturn
_set_app_type
terminate
_errno

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

strcmp
strpbrk
_strdup
strncmp
strspn
wcsnlen
isupper
strcspn
_wcsdup
islower
tolower
__strncnt
isspace
strncpy

api-ms-win-crt-locale-l1-1-0

setlocale
_lock_locales
_unlock_locales
__pctype_func
localeconv
___lc_codepage_func
___mb_cur_max_func
___lc_collate_cp_func
___lc_locale_name_func
_configthreadlocale

api-ms-win-crt-math-l1-1-0

__setusermatherr
_fdopen
frexp

api-ms-win-crt-environment-l1-1-0

getenv

api-ms-win-crt-time-l1-1-0

_W_Gettnames
_Getmonths
_W_Getdays
_gmtime64
_Wcsftime
_Gettnames
_Strftime
_Getdays
_W_Getmonths
_time64
strftime

api-ms-win-crt-convert-l1-1-0

strtoul
strtoll
wcstombs
strtof
strtod
atoi
strtol

Sections

.text
Size: 532KB - Virtual size: 531KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 117KB - Virtual size: 116KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 6KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 24KB - Virtual size: 23KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 512B - Virtual size: 480B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

425a6f69a4fe7f28be76d0cb6411c5a3

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

advapi32

ws2_32

normaliz

wldap32

crypt32

bcrypt

vcruntime140_1

vcruntime140

api-ms-win-crt-stdio-l1-1-0

api-ms-win-crt-utility-l1-1-0

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

api-ms-win-crt-filesystem-l1-1-0

api-ms-win-crt-runtime-l1-1-0

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

api-ms-win-crt-locale-l1-1-0

api-ms-win-crt-math-l1-1-0

api-ms-win-crt-environment-l1-1-0

api-ms-win-crt-time-l1-1-0

api-ms-win-crt-convert-l1-1-0

Sections

.text Size: 532KB - Virtual size: 531KB

.rdata Size: 117KB - Virtual size: 116KB

.data Size: 6KB - Virtual size: 10KB

.pdata Size: 24KB - Virtual size: 23KB

.rsrc Size: 512B - Virtual size: 480B

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

.text
Size: 532KB - Virtual size: 531KB

.rdata
Size: 117KB - Virtual size: 116KB

.data
Size: 6KB - Virtual size: 10KB

.pdata
Size: 24KB - Virtual size: 23KB

.rsrc
Size: 512B - Virtual size: 480B

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