XCoreMServiceWSnt[.]exe

Sharing

Copy URL Twitter E-mail

General

Target

XCoreMServiceWSnt.exe
Size

129KB
MD5

cac4bba4c6fbff83f3e47c107dcb0842
SHA1

dbceac9edaf0de57fb8f9322483461876a098761
SHA256

887bd3e9ae742cc6d54078cb41f34ae4ee4fa7121834f8b0da180823cd7fba96
SHA512

cbedd201f86cd9ec74be445f479dacf2b405bf624cebc7b924ccab97d9b1309710504024300ecb722e5ce76265f04ba7bd3d779122e6790f54246b9f80e952b1
SSDEEP

3072:wauZfFYTYHhItk4OydKkBWB7bCtaDfCGm:xu9eTQEOlkBUDf8

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
XCoreMServiceWSnt.exe

Files

XCoreMServiceWSnt.exe
.exe windows x86

f703ac004209e99f97a7ed3c6d5015ee

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

userenv

CreateEnvironmentBlock

wtsapi32

WTSQueryUserToken

libcrypto-1_1

BIO_new_mem_buf
BIO_free
DH_free
BIO_new_file
PEM_read_bio_DHparams

libssl-1_1

SSL_get_fd
SSL_CTX_get_ex_data
SSL_shutdown
SSL_CTX_set_ex_data
SSL_CTX_set_psk_client_callback
TLS_client_method
TLS_server_method
SSL_write
SSL_get_error
SSL_CTX_new
SSL_CTX_load_verify_locations
SSL_set_fd
SSL_CTX_use_PrivateKey_file
SSL_CTX_use_certificate_file
SSL_CTX_ctrl
SSL_CTX_free
SSL_new
SSL_CTX_set_options
SSL_free
OPENSSL_init_ssl
SSL_connect
SSL_get_SSL_CTX
SSL_CTX_set_cipher_list
SSL_read
SSL_accept
SSL_CTX_set_verify
SSL_ctrl
SSL_CTX_use_certificate_chain_file

kernel32

QueryPerformanceCounter
IsProcessorFeaturePresent
TerminateProcess
SetUnhandledExceptionFilter
GetCurrentProcessId
InitializeSListHead
IsDebuggerPresent
GetModuleHandleW
UnhandledExceptionFilter
GetSystemTimeAsFileTime
GetCurrentThreadId
CreateEventA
WaitForSingleObject
CreateMutexA
FindNextFileA
SetPriorityClass
FindFirstFileA
FormatMessageA
GetSystemTime
WinExec
WTSGetActiveConsoleSessionId
LocalFree
GetWindowsDirectoryA
GetTickCount
ReadFile
FindFirstFileW
SetHandleInformation
SetLastError
GetFullPathNameW
FindNextFileW
GetCurrentProcess
GetStdHandle
WriteFile
CreatePipe
FindClose
GetFileAttributesW
DuplicateHandle
MultiByteToWideChar
Sleep
GetLastError
CloseHandle
GetLocalTime
SystemTimeToFileTime
CreateProcessW
WideCharToMultiByte
GetModuleFileNameA
Process32First
EnterCriticalSection
OutputDebugStringA
LeaveCriticalSection
InitializeCriticalSection
OpenProcess
CreateToolhelp32Snapshot
ProcessIdToSessionId
GetTempPathA
GetTimeZoneInformation
CopyFileA
GetFileAttributesA
DeleteFileA
Process32Next

advapi32

RegQueryValueExW
OpenProcessToken
RegOpenKeyExW
RegEnumKeyExW
AdjustTokenPrivileges
CreateProcessAsUserA
SetTokenInformation
RegCloseKey
DuplicateTokenEx
LookupPrivilegeValueA

ws2_32

connect
ntohs
socket
send
getsockname
getpeername
WSAStartup
inet_ntoa
shutdown
ntohl
select
closesocket
bind
accept
__WSAFDIsSet
recvfrom
recv
getsockopt
htonl
htons
sendto
ioctlsocket
setsockopt
WSAGetLastError
listen

msvcp140

?_Xout_of_range@std@@YAXPBD@Z
?_Xlength_error@std@@YAXPBD@Z
?_Xbad_alloc@std@@YAXXZ

ueseal2

VerifyCertInSignature
ModifyPin
GetSignatureFromHash
SetKeyPassword
GetSealPicture
InitUESealCtx
GetSealInfo
GetCertFromSignatureWithoutVerify
VerifySignFromHash

cjson

_cJSON_Delete@4
_cJSON_GetArrayItem@8
_cJSON_AddObjectToObject@8
_cJSON_GetObjectItem@8
_cJSON_GetArraySize@4
_cJSON_Print@4
_cJSON_AddItemToObject@12
_cJSON_AddStringToObject@12
_cJSON_CreateIntArray@8
_cJSON_CreateObject@0
_cJSON_CreateArray@0
_cJSON_Parse@4
_cJSON_AddItemToArray@8
_cJSON_AddNumberToObject@16

dllxcorem

dllXCoreMClose
dllXCoreMReadAll
dllXCoreMGenSignBox
dllXCoreMOpenOn
dllXCoreMGetSignatureData
dllXCoreMExit
dllXCoreMOpen
dllXCoreMSignList
dllXCoreMGenAlphaPNG
dllXCoreMSaveX
dllXCoreMSignVerify
dllXCoreMSavePageAs
dllXCoreMImageDelete
dllXCoreMGetSealImageInfo
dllXCoreMImageList
dllXCoreMInit
dllXCoreMSignClear
dllXCoreMCanDoSign
dllXCoreMSignDo
dllXCoreMPageCount
dllXCoreMSave
dllXCoreMSignAcrossDo
dllXCoreMText2Image
dllXCoreMImageAddOn

esealverify

ESV_Do

vcruntime140

memset
__CxxFrameHandler3
memcpy
_CxxThrowException
_except_handler4_common
__std_exception_copy
strstr
strrchr
strchr
memchr
memmove
__std_exception_destroy
wcschr

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

fread
fputs
__stdio_common_vsscanf
__stdio_common_vsprintf
_wfopen
ftell
fwrite
_fileno
fgets
fgetc
__acrt_iob_func
__stdio_common_vfprintf
__stdio_common_vsprintf_s
fopen_s
fopen
fputc
__p__commode
_set_fmode
fseek
fflush
fclose

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

_beginthread
_register_thread_local_exe_atexit_callback
_c_exit
_cexit
__p___argv
__p___argc
terminate
_exit
exit
_initterm_e
_initterm
_get_initial_narrow_environment
_initialize_narrow_environment
_configure_narrow_argv
_initialize_onexit_table
_set_app_type
_seh_filter_exe
_register_onexit_function
signal
_invalid_parameter_noinfo_noreturn
_invalid_parameter_noinfo
strerror
_errno
_crt_atexit
_controlfp_s

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

malloc
free
_callnewh
_set_new_mode
calloc
realloc

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

toupper
strcat_s
tolower
isprint
strncpy_s
strcpy_s
isdigit
_strdup
isspace
strncpy
isxdigit
isalnum
strncmp

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

_rmdir
_wstat64

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

_localtime64_s
_gmtime64_s
_time64
_gmtime64
_localtime64
strftime

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

atoi
_atoi64
strtoul

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

rand

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

getenv

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

__setusermatherr
_except1

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

_configthreadlocale

Exports

Exports

rmdir

Sections

.text
Size: 97KB - Virtual size: 97KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 22KB - Virtual size: 22KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.gfids
Size: 512B - Virtual size: 80B

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: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

f703ac004209e99f97a7ed3c6d5015ee

Headers

DLL Characteristics

File Characteristics

Imports

userenv

wtsapi32

libcrypto-1_1

libssl-1_1

kernel32

advapi32

ws2_32

msvcp140

ueseal2

cjson

dllxcorem

esealverify

vcruntime140

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

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

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

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

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

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

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

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

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

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

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

Exports

Exports

Sections

.text Size: 97KB - Virtual size: 97KB

.rdata Size: 22KB - Virtual size: 22KB

.data Size: 512B - Virtual size: 1KB

.gfids Size: 512B - Virtual size: 80B

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

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

.text
Size: 97KB - Virtual size: 97KB

.rdata
Size: 22KB - Virtual size: 22KB

.data
Size: 512B - Virtual size: 1KB

.gfids
Size: 512B - Virtual size: 80B

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

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