JiayiInstaller[.]exe

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General

Target

JiayiInstaller.exe
Size

5.9MB
MD5

5ed6f8c2ff3b5e3a31246db547e2bd63
SHA1

350a3947e9308ddfec9165e8bf100dc12aca48b2
SHA256

f060fb12bcc0402d9de6ca33b43c6b3d25c3538678bcaddf07b9b3662c3761ad
SHA512

98e818551d057e100e7fa30c8ae720376993c6e48b0e836b1ce3b217e06ed5e8e0b02bc8599c5d22aa24db6db0b3605719d124189a849b66672f923af5db8b50
SSDEEP

49152:mx6ugNVHqYgV5b5U/qnGu1qMtsb+p511ir2pipkR8ibxkmSf5FekdOWn3U+8EVf7:BHq95e/qpnR5I2soVkdp3dgyAiyVM

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
JiayiInstaller.exe

Files

JiayiInstaller.exe
.exe windows:6 windows x64 arch:x64

9800bf11b5f83985f30ec32be5b75e40

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

PDB Paths

D:\projects\JiayiLauncher\JiayiLauncher.Installer\bin\x64\Release\net8.0\win-x64\native\JiayiLauncher.Installer.pdb

Imports

advapi32

RegCreateKeyExW
RegDeleteKeyExW
RegOpenKeyExW
RegQueryInfoKeyW
RegQueryValueExW
RegSetValueExW
RegCloseKey
OpenProcessToken
LookupPrivilegeValueW
AdjustTokenPrivileges
RegEnumKeyExW
RegEnumValueW
GetTokenInformation
DuplicateTokenEx
OpenThreadToken
RevertToSelf
ImpersonateLoggedOnUser
CheckTokenMembership

bcrypt

BCryptFinishHash
BCryptDestroyHash
BCryptGetProperty
BCryptDestroyKey
BCryptGenRandom
BCryptHashData
BCryptImportKey
BCryptImportKeyPair
BCryptCloseAlgorithmProvider
BCryptOpenAlgorithmProvider
BCryptCreateHash
BCryptEncrypt
BCryptSetProperty
BCryptDecrypt
BCryptExportKey

crypt32

CertFreeCertificateChainEngine
CertCloseStore
PFXImportCertStore
PFXExportCertStore
CryptFindOIDInfo
CryptQueryObject
CryptMsgGetParam
CryptMsgClose
CryptImportPublicKeyInfoEx2
CryptFormatObject
CryptDecodeObject
CertVerifyTimeValidity
CertSetCertificateContextProperty
CertSerializeCertificateStoreElement
CertSaveStore
CertOpenStore
CertVerifyCertificateChainPolicy
CertFreeCertificateContext
CertEnumCertificatesInStore
CertDuplicateCertificateContext
CertGetCertificateContextProperty
CertAddCertificateContextToStore
CertAddCertificateLinkToStore
CertControlStore
CertCreateCertificateChainEngine
CertFindCertificateInStore
CertFindExtension
CertFreeCertificateChain
CertGetCertificateChain
CertGetIntendedKeyUsage
CertGetNameStringW
CertGetValidUsages
CertNameToStrW

iphlpapi

GetAdaptersAddresses
GetPerAdapterInfo
GetNetworkParams
if_nametoindex

kernel32

RtlUnwindEx
RtlPcToFileHeader
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
IsDebuggerPresent
InitializeSListHead
GetCurrentProcessId
IsProcessorFeaturePresent
RaiseException
SetUnhandledExceptionFilter
SetLastError
GetLastError
FormatMessageW
GetCPInfoExW
FillConsoleOutputAttribute
FillConsoleOutputCharacterW
GetConsoleScreenBufferInfo
GetConsoleMode
GetLargestConsoleWindowSize
GetFileType
ReadFile
ReadConsoleW
ReadConsoleInputW
SetConsoleCursorPosition
SetConsoleScreenBufferSize
SetConsoleTextAttribute
SetConsoleTitleW
WriteFile
WriteConsoleW
GetConsoleCP
GetConsoleOutputCP
GetStdHandle
SetConsoleWindowInfo
MultiByteToWideChar
WideCharToMultiByte
CloseHandle
GetExitCodeProcess
CreateProcessW
OpenProcess
K32EnumProcesses
GetProcessId
DuplicateHandle
CreatePipe
GetCurrentProcess
QueryPerformanceCounter
GetTickCount64
LoadLibraryExW
CancelIoEx
CloseThreadpoolIo
GetCommandLineW
RaiseFailFastException
TzSpecificLocalTimeToSystemTime
SystemTimeToFileTime
FileTimeToSystemTime
GetSystemTime
GetCalendarInfoEx
CompareStringOrdinal
CompareStringEx
FindNLSStringEx
GetLocaleInfoEx
ResolveLocaleName
GetUserPreferredUILanguages
FindStringOrdinal
GetCurrentThread
WaitForSingleObject
Sleep
DeleteCriticalSection
LocalFree
EnterCriticalSection
SleepConditionVariableCS
LeaveCriticalSection
WakeConditionVariable
InitializeCriticalSection
InitializeConditionVariable
CreateThreadpoolTimer
SetThreadpoolTimer
WaitForMultipleObjectsEx
GetCurrentThreadId
CreateThreadpoolWait
SetThreadpoolWait
WaitForThreadpoolWaitCallbacks
CloseThreadpoolWait
CreateThreadpoolWork
CloseThreadpoolWork
SubmitThreadpoolWork
QueryPerformanceFrequency
GetFullPathNameW
GetLongPathNameW
GetCPInfo
LocalAlloc
GetProcAddress
LocaleNameToLCID
LCMapStringEx
EnumTimeFormatsEx
EnumCalendarInfoExEx
CancelSynchronousIo
CreateIoCompletionPort
CreateDirectoryW
CreateFileW
CreateThreadpoolIo
StartThreadpoolIo
CancelThreadpoolIo
DeleteFileW
DeleteVolumeMountPointW
DeviceIoControl
ExpandEnvironmentStringsW
FindNextFileW
FindClose
FindFirstFileExW
FlushFileBuffers
FreeLibrary
GetCurrentDirectoryW
GetFileAttributesExW
GetFileInformationByHandleEx
GetModuleFileNameW
GetOverlappedResult
GetSystemDirectoryW
OpenThread
QueryUnbiasedInterruptTime
RemoveDirectoryW
SetFileInformationByHandle
SetFilePointerEx
SetThreadErrorMode
CreateThread
ResumeThread
GetThreadPriority
SetThreadPriority
GetDynamicTimeZoneInformation
GetTimeZoneInformation
GetCurrentProcessorNumberEx
SetEvent
ResetEvent
CreateEventExW
GetEnvironmentVariableW
FlushProcessWriteBuffers
WaitForSingleObjectEx
RtlVirtualUnwind
RtlCaptureContext
RtlRestoreContext
AddVectoredExceptionHandler
FlsAlloc
FlsGetValue
FlsSetValue
CreateEventW
TerminateProcess
SwitchToThread
SuspendThread
GetThreadContext
SetThreadContext
FlushInstructionCache
VirtualAlloc
VirtualProtect
VirtualFree
QueryInformationJobObject
GetModuleHandleW
GetModuleHandleExW
GetProcessAffinityMask
InitializeContext
GetEnabledXStateFeatures
SetXStateFeaturesMask
InitializeCriticalSectionEx
VirtualQuery
GetSystemTimeAsFileTime
DebugBreak
SleepEx
GlobalMemoryStatusEx
GetSystemInfo
GetLogicalProcessorInformation
GetLogicalProcessorInformationEx
GetLargePageMinimum
VirtualUnlock
VirtualAllocExNuma
IsProcessInJob
GetNumaHighestNodeNumber
GetProcessGroupAffinity
K32GetProcessMemoryInfo
EncodePointer
DecodePointer
HeapCreate
HeapDestroy
HeapAlloc
HeapFree
GetProcessHeap
UnhandledExceptionFilter
RtlLookupFunctionEntry

ncrypt

NCryptSetProperty
NCryptOpenKey
NCryptDeleteKey
NCryptOpenStorageProvider
NCryptGetProperty
NCryptImportKey
NCryptFreeObject

ole32

CoInitializeEx
CoUninitialize
CoWaitForMultipleHandles
CoCreateGuid
CoTaskMemFree
CoTaskMemAlloc
CoGetApartmentType

user32

LoadStringW

ws2_32

shutdown
setsockopt
send
select
recv
WSAConnect
getsockopt
getpeername
bind
WSAIoctl
WSAEventSelect
WSASend
ioctlsocket
WSARecv
closesocket
GetNameInfoW
GetAddrInfoW
FreeAddrInfoW
WSASocketW
GetAddrInfoExW
WSAStartup
WSACleanup
FreeAddrInfoExW
WSAGetOverlappedResult

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

malloc
_set_new_mode
calloc
_callnewh
free

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

__setusermatherr
ceil
cos
floor
pow
sin
tan
modf

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

strcmp
_stricmp
strncpy_s
strcpy_s
wcsncmp

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

strtoull

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

_c_exit
_register_onexit_function
_cexit
abort
__p___wargv
__p___argc
_exit
exit
_initterm_e
_crt_atexit
_initialize_onexit_table
_initterm
_get_initial_wide_environment
_initialize_wide_environment
_configure_wide_argv
terminate
_register_thread_local_exe_atexit_callback
_set_app_type
_seh_filter_exe

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

__acrt_iob_func
_set_fmode
__stdio_common_vsprintf_s
__stdio_common_vsscanf
__stdio_common_vfprintf
__p__commode

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

_configthreadlocale

Exports

Exports

DotNetRuntimeDebugHeader

Sections

.text
Size: 515KB - Virtual size: 514KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.managed
Size: 2.9MB - Virtual size: 2.9MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

hydrated
Size: - Virtual size: 1.2MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 2.1MB - Virtual size: 2.1MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 22KB - Virtual size: 116KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 241KB - Virtual size: 240KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 500B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 111KB - Virtual size: 110KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

9800bf11b5f83985f30ec32be5b75e40

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

advapi32

bcrypt

crypt32

iphlpapi

kernel32

ncrypt

ole32

user32

ws2_32

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

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

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

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

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

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

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

Exports

Exports

Sections

.text Size: 515KB - Virtual size: 514KB

.managed Size: 2.9MB - Virtual size: 2.9MB

hydrated Size: - Virtual size: 1.2MB

.rdata Size: 2.1MB - Virtual size: 2.1MB

.data Size: 22KB - Virtual size: 116KB

.pdata Size: 241KB - Virtual size: 240KB

_RDATA Size: 512B - Virtual size: 500B

.rsrc Size: 111KB - Virtual size: 110KB

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

.text
Size: 515KB - Virtual size: 514KB

.managed
Size: 2.9MB - Virtual size: 2.9MB

hydrated
Size: - Virtual size: 1.2MB

.rdata
Size: 2.1MB - Virtual size: 2.1MB

.data
Size: 22KB - Virtual size: 116KB

.pdata
Size: 241KB - Virtual size: 240KB

_RDATA
Size: 512B - Virtual size: 500B

.rsrc
Size: 111KB - Virtual size: 110KB

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