SimAuth[.]dll | Triage

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General

Target

SimAuth.dll
Size

120KB
MD5

b24d1be942baa9ba4bbc5dffcd78fc2b
SHA1

82c3f9817664e902c62f9a041714f6dd903de8a1
SHA256

b8dad51576d9a31c2613cc89295b7b53b55c8b195d07ac622a5a1d619802d216
SHA512

91cd8fcf46febe9888d1ca82cd48788483c13000b2283e44330269157245454a29673d2f455bfa6407bde3450a186f3a9bd39231c578e1c2a1a8beab88a353fe
SSDEEP

3072:0T7qJ8BNxUKviJGW8m+qOLJG8HMTxJE/sCGfz5kr6:27qJ8rS6WGtm+qOLJVMApGftkr6

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
SimAuth.dll

Files

SimAuth.dll
.dll windows:10 windows x86 arch:x86

0692cc5dcb9b1c57a777ece161205ffb

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

PDB Paths

Simauth.pdb

Imports

msvcp_win

?_Xlength_error@std@@YAXPBD@Z

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

_initterm_e
_initterm

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

_o__callnewh
_o__cexit
_o__configure_narrow_argv
_o__crt_atexit
_o__errno
_o__execute_onexit_table
_o__initialize_narrow_environment
_o__initialize_onexit_table
_o__invalid_parameter_noinfo
_o__invalid_parameter_noinfo_noreturn
_o__purecall
_o___std_type_info_destroy_list
_o__register_onexit_function
memmove
_o__seh_filter_dll
_o__strnicmp
_o__wcsicmp
_o_free
_o_malloc
_o_terminate
__current_exception
__current_exception_context
_o___std_exception_destroy
_except_handler4_common
_CxxThrowException
_o___std_exception_copy
__CxxFrameHandler3
memcmp
memcpy

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

memset

api-ms-win-eventing-provider-l1-1-0

EventWriteTransfer
EventUnregister
EventRegister

api-ms-win-eventing-classicprovider-l1-1-0

UnregisterTraceGuids
TraceMessage
GetTraceLoggerHandle
GetTraceEnableFlags
GetTraceEnableLevel
RegisterTraceGuidsW

api-ms-win-core-libraryloader-l1-2-0

DisableThreadLibraryCalls
LoadStringW

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

HeapFree
GetProcessHeap
HeapAlloc

ws2_32

htons
ntohs
htonl

api-ms-win-core-profile-l1-1-0

QueryPerformanceCounter

api-ms-win-core-processthreads-l1-1-0

GetCurrentProcess
TerminateProcess
GetCurrentProcessId
GetCurrentThreadId

api-ms-win-core-sysinfo-l1-1-0

GetSystemTimeAsFileTime

api-ms-win-core-interlocked-l1-1-0

InitializeSListHead

api-ms-win-core-debug-l1-1-0

IsDebuggerPresent

api-ms-win-core-errorhandling-l1-1-0

UnhandledExceptionFilter
GetLastError
SetUnhandledExceptionFilter

api-ms-win-core-processthreads-l1-1-1

IsProcessorFeaturePresent

ntdll

RtlNtStatusToDosError
WinSqmSetDWORD
NtPowerInformation

mobilenetworking

GetPersistentRegPathFromRegPath

api-ms-win-core-registry-l1-1-0

RegQueryValueExW
RegOpenKeyExW
RegSetValueExW
RegCloseKey

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

MultiByteToWideChar
WideCharToMultiByte

api-ms-win-core-heap-l2-1-0

LocalFree

api-ms-win-core-io-l1-1-0

DeviceIoControl

api-ms-win-core-file-l1-1-0

CreateFileW

api-ms-win-core-handle-l1-1-0

CloseHandle

api-ms-win-core-synch-l1-1-0

DeleteCriticalSection
SetEvent
InitializeCriticalSection
ResetEvent
LeaveCriticalSection
WaitForSingleObject
CreateEventW
EnterCriticalSection

api-ms-win-core-delayload-l1-1-1

ResolveDelayLoadedAPI

api-ms-win-core-delayload-l1-1-0

DelayLoadFailureHook

api-ms-win-core-apiquery-l1-1-0

ApiSetQueryApiSetPresence

Exports

Exports

EapPeerFreeErrorMemory
EapPeerFreeMemory
EapPeerGetInfo

Sections

.text
Size: 103KB - Virtual size: 103KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 1024B - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.didat
Size: 512B - Virtual size: 152B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 3KB - Virtual size: 2KB

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

0692cc5dcb9b1c57a777ece161205ffb

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

msvcp_win

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

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

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

api-ms-win-eventing-provider-l1-1-0

api-ms-win-eventing-classicprovider-l1-1-0

api-ms-win-core-libraryloader-l1-2-0

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

ws2_32

api-ms-win-core-profile-l1-1-0

api-ms-win-core-processthreads-l1-1-0

api-ms-win-core-sysinfo-l1-1-0

api-ms-win-core-interlocked-l1-1-0

api-ms-win-core-debug-l1-1-0

api-ms-win-core-errorhandling-l1-1-0

api-ms-win-core-processthreads-l1-1-1

ntdll

mobilenetworking

api-ms-win-core-registry-l1-1-0

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

api-ms-win-core-heap-l2-1-0

api-ms-win-core-io-l1-1-0

api-ms-win-core-file-l1-1-0

api-ms-win-core-handle-l1-1-0

api-ms-win-core-synch-l1-1-0

api-ms-win-core-delayload-l1-1-1

api-ms-win-core-delayload-l1-1-0

api-ms-win-core-apiquery-l1-1-0

Exports

Exports

Sections

.text Size: 103KB - Virtual size: 103KB

.data Size: 1024B - Virtual size: 1KB

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

.didat Size: 512B - Virtual size: 152B

.rsrc Size: 3KB - Virtual size: 2KB

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

.text
Size: 103KB - Virtual size: 103KB

.data
Size: 1024B - Virtual size: 1KB

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

.didat
Size: 512B - Virtual size: 152B

.rsrc
Size: 3KB - Virtual size: 2KB

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