NisSrv[.]exe | Triage

Sharing

Copy URL Twitter E-mail

General

Target

NisSrv.exe
Size

2.8MB
MD5

852aae2f9f2f13fd6aecc1e1817d8bf1
SHA1

548c65353a1a7acfa4ccf72f94571feeb533ab44
SHA256

6bfe5b785d96525c9f060474837a83434e9eeab498a07396c5edb7ea925bf8b9
SHA512

3a7f1d8fd4d0d779383697632e3b00b803e510719aa80130337efa7c6ab94418c3dd1315b866d4e9b2f4028777de1229b1bd8057129c89d2778def1f465f95d2
SSDEEP

49152:LJlKh3CsTiIy0vAayl+xFJCPg3gUZ/RG6XICg:DIPlIn

Score

1^/10

Malware Config

Signatures

Files

NisSrv.exe
.exe windows:10 windows x64 arch:x64

23effb4eea98b80d50b2bdc8c3257a9d

Code Sign

33:00:00:02:f3:33:e1:71:b2:60:95:27:48:00:00:00:00:02:f3
Certificate

Issuer

CN=Microsoft Windows Production PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

29/04/2021, 19:15

Not After

28/04/2022, 19:15

Subject

CN=Microsoft Windows Publisher,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

61:07:76:56:00:00:00:00:00:08
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

19/10/2011, 18:41

Not After

19/10/2026, 18:51

Subject

CN=Microsoft Windows Production PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

92:d8:66:63:6f:7f:6b:3c:5f:be:5e:b7:e9:cc:a0:ff:72:4c:fc:92:f6:6b:58:36:9b:e4:dd:99:3e:fd:9b:41
Signer

Actual PE Digest

92:d8:66:63:6f:7f:6b:3c:5f:be:5e:b7:e9:cc:a0:ff:72:4c:fc:92:f6:6b:58:36:9b:e4:dd:99:3e:fd:9b:41

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB Paths

NisSrv.pdb

Imports

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

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

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

feof
fgetws
fclose
fwrite
fgetc
fflush
setvbuf
ungetc
fsetpos
__stdio_common_vswprintf_s
fread
_fseeki64
_get_stream_buffer_pointers
_wfsopen
fseek
_fsopen
__p__commode
_set_fmode
__stdio_common_vsnprintf_s
__stdio_common_vswprintf
__stdio_common_vsprintf
_wfopen
fputc
__stdio_common_vsnwprintf_s
__stdio_common_vsprintf_s
fgetpos

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

realloc
malloc
_recalloc
calloc
_calloc_base
_callnewh
_free_base
free
_malloc_base
_set_new_mode

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

wcstoull
wcstod
strtol
wcstol
wcstoll
_i64toa_s
strtod
strtof
_ui64toa_s
_i64tow_s
_itow_s
_ui64tow_s
_wcstod_l
strtoll

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

wcsncpy_s
iswxdigit
strcspn
towlower
iswlower
iswupper
strncmp
iswdigit
isdigit
iswalpha
towupper
isalpha
strcpy_s
_wcsicmp
_wcsdup
toupper
wcscmp
strnlen
tolower
isspace
wcsnlen
iswspace
__strncnt
isupper
islower

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

_lock_locales
___lc_codepage_func
__pctype_func
_configthreadlocale
_free_locale
_create_locale
setlocale
___lc_collate_cp_func
___lc_locale_name_func
___mb_cur_max_func
localeconv
_unlock_locales

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

ceil
log2
pow
ldexp
ceilf
frexp
powf

advapi32

RevertToSelf
SetThreadToken
DuplicateTokenEx
OpenSCManagerW
RegSetKeyValueW
RegOpenCurrentUser
RegGetValueW
CloseServiceHandle
ImpersonateLoggedOnUser
StartServiceW
OpenServiceW
RegQueryValueExW
EventWriteTransfer
EventUnregister
EventRegister
SetServiceStatus
RegisterServiceCtrlHandlerExW
StartServiceCtrlDispatcherW
RegDeleteValueW
RegCreateKeyExW
GetTraceLoggerHandle
RegSetValueExW
RegOpenKeyExW
RegEnumKeyExW
RegQueryInfoKeyW
RegCloseKey
UnregisterTraceGuids
RegisterTraceGuidsW
GetTraceEnableFlags
GetTraceEnableLevel
TraceMessage

kernel32

LoadLibraryExA
DelayLoadFailureHook
MapViewOfFile
CreateFileMappingW
GetSystemDirectoryW
CloseThreadpoolIo
GetOverlappedResult
CancelIoEx
CancelThreadpoolIo
WaitForThreadpoolIoCallbacks
CreateThreadpoolIo
StartThreadpoolIo
QueryUnbiasedInterruptTime
QueryFullProcessImageNameW
OpenProcess
VerifyVersionInfoW
DuplicateHandle
GlobalFree
GetProcessId
GetThreadPreferredUILanguages
GetLongPathNameW
QueryProcessCycleTime
GetUserPreferredUILanguages
GetSystemPreferredUILanguages
UnmapViewOfFile
GetSystemInfo
GetModuleHandleA
GetVersionExW
CreateMutexW
GetModuleFileNameA
CreateSemaphoreExW
HeapFree
SetLastError
ReleaseSemaphore
GetModuleHandleExW
WaitForSingleObject
GetCurrentThreadId
ReleaseMutex
FormatMessageW
GetLastError
OutputDebugStringW
WaitForSingleObjectEx
OpenSemaphoreW
CloseHandle
HeapAlloc
GetProcAddress
CreateMutexExW
GetCurrentProcessId
GetProcessHeap
GetModuleHandleW
DebugBreak
IsDebuggerPresent
SetThreadpoolTimer
WaitForThreadpoolTimerCallbacks
CloseThreadpoolTimer
CreateThreadpoolTimer
MultiByteToWideChar
CloseThreadpool
WaitForThreadpoolWorkCallbacks
CloseThreadpoolWork
CreateThreadpool
SetThreadpoolThreadMaximum
CreateThreadpoolWork
SubmitThreadpoolWork
GetSystemTime
SystemTimeToFileTime
RaiseException
FreeLibrary
LoadLibraryExW
lstrcmpiW
LeaveCriticalSection
EnterCriticalSection
SizeofResource
LoadResource
FindResourceExW
GetModuleFileNameW
InitializeCriticalSection
DeleteCriticalSection
HeapSetInformation
CreateEventW
SetEvent
TerminateProcess
GetCurrentProcess
SwitchToFiber
ConvertFiberToThread
IsThreadAFiber
ConvertThreadToFiber
CreateFiberEx
DeleteFiber
WideCharToMultiByte
GetSystemTimeAsFileTime
CreateFileW
SetErrorMode
QueryPerformanceFrequency
QueryPerformanceCounter
FormatMessageA
Sleep
SwitchToThread
InitializeSRWLock
TryAcquireSRWLockExclusive
ReleaseSRWLockExclusive
AcquireSRWLockExclusive
WakeAllConditionVariable
WakeConditionVariable
InitializeConditionVariable
SleepConditionVariableSRW
RtlPcToFileHeader
GetStringTypeW
ReleaseSRWLockShared
AcquireSRWLockShared
LocalFree
InitOnceComplete
CreateDirectoryW
GetFileInformationByHandleEx
FindFirstFileExW
FindNextFileW
DeviceIoControl
FindClose
GetFileAttributesW
GetFileAttributesExW
SetFileInformationByHandle
MoveFileExW
CopyFileW
InitOnceBeginInitialize
InitializeCriticalSectionEx
EncodePointer
DecodePointer
LCMapStringEx
GetLocaleInfoEx
CompareStringEx
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsProcessorFeaturePresent
InitializeCriticalSectionAndSpinCount
ResetEvent
InitializeSListHead
RtlUnwindEx
FlsAlloc
FlsGetValue
FlsSetValue
FlsFree
GetProcessTimes
ExpandEnvironmentStringsW
GetFileSizeEx

user32

UnregisterClassA
CharNextW

ntdll

RtlIpv4StringToAddressExW
VerSetConditionMask
RtlIpv6StringToAddressExW

mpclient

MpUtilsExportFunctions
MpClientUtilExportFunctions
MpConfigInitialize
MpConfigUninitialize
MpFreeMemory
MpManagerOpen
MpNotificationRegister
MpHandleClose
MpConfigGetValueAlloc
MpConfigClose
MpConfigOpen

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

_lock_file
_unlock_file

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

rand_s

Sections

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

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 352KB - Virtual size: 350KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 40KB - Virtual size: 108KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 88KB - Virtual size: 85KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.didat
Size: 4KB - Virtual size: 512B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 4KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 16KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

23effb4eea98b80d50b2bdc8c3257a9d

Code Sign

33:00:00:02:f3:33:e1:71:b2:60:95:27:48:00:00:00:00:02:f3Certificate

Extended Key Usages

61:07:76:56:00:00:00:00:00:08Certificate

Key Usages

92:d8:66:63:6f:7f:6b:3c:5f:be:5e:b7:e9:cc:a0:ff:72:4c:fc:92:f6:6b:58:36:9b:e4:dd:99:3e:fd:9b:41Signer

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

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

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

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

api-ms-win-crt-convert-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

advapi32

kernel32

user32

ntdll

mpclient

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

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

Sections

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

.rdata Size: 352KB - Virtual size: 350KB

.data Size: 40KB - Virtual size: 108KB

.pdata Size: 88KB - Virtual size: 85KB

.didat Size: 4KB - Virtual size: 512B

.rsrc Size: 4KB - Virtual size: 2KB

.reloc Size: 16KB - Virtual size: 12KB

33:00:00:02:f3:33:e1:71:b2:60:95:27:48:00:00:00:00:02:f3
Certificate

61:07:76:56:00:00:00:00:00:08
Certificate

92:d8:66:63:6f:7f:6b:3c:5f:be:5e:b7:e9:cc:a0:ff:72:4c:fc:92:f6:6b:58:36:9b:e4:dd:99:3e:fd:9b:41
Signer

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

.rdata
Size: 352KB - Virtual size: 350KB

.data
Size: 40KB - Virtual size: 108KB

.pdata
Size: 88KB - Virtual size: 85KB

.didat
Size: 4KB - Virtual size: 512B

.rsrc
Size: 4KB - Virtual size: 2KB

.reloc
Size: 16KB - Virtual size: 12KB