SimAuth[.]dll | Triage

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General

Target

SimAuth.dll
Size

126KB
MD5

ee781abf0cc5998cbd424040dbf04b20
SHA1

1c154e4ee89367af8978b0ac7b4b3528733e4f1d
SHA256

dacc958db0af6dec0d31dbdd93a73c4d674901412b275a9bf776d12c4dc87f13
SHA512

2fa98c542ec8f5ccbf767d3a8b133409175938b86b8b2396c7249b84203af0f9b1b4d72f81b23c288e9ebab8dc62a0cbfbe7c3473c054e00b7c33984d9ecce6c
SSDEEP

3072:KqzQaPnQLeXU2mEutZRMEP4PV9ZMC9I9:KqMaPQLeXUI7s4PVjl

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

f798061ac56e61be8b5e4dc973e8f2ba

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

msvcrt

_XcptFilter
_amsg_exit
?terminate@@YAXXZ
_wcsicmp
memcpy
__CxxFrameHandler3
_strnicmp
free
_CxxThrowException
?what@exception@@UBEPBDXZ
??1exception@@UAE@XZ
??0exception@@QAE@ABV0@@Z
_initterm
memcmp
_lock
_unlock
__dllonexit
??3@YAXPAX@Z
_onexit
??1type_info@@UAE@XZ
??0exception@@QAE@ABQBDH@Z
??0exception@@QAE@ABQBD@Z
_except_handler4_common
_callnewh
malloc
_purecall
memmove
memcpy_s
memset

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

EventUnregister
EventRegister
EventWrite

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

UnregisterTraceGuids
TraceMessage
GetTraceLoggerHandle
RegisterTraceGuidsW
GetTraceEnableLevel
GetTraceEnableFlags

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

LoadStringW
DisableThreadLibraryCalls

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

HeapAlloc
GetProcessHeap
HeapFree

ws2_32

htonl
ntohs
htons

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

EnterCriticalSection
Sleep
ResetEvent
LeaveCriticalSection
InitializeCriticalSection
DeleteCriticalSection
SetEvent
CreateEventW
WaitForSingleObject

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

QueryPerformanceCounter

api-ms-win-core-processthreads-l1-1-2

GetCurrentProcessId
GetCurrentThreadId
GetCurrentProcess
TerminateProcess

api-ms-win-core-sysinfo-l1-2-1

GetTickCount
GetSystemTimeAsFileTime

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

UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetLastError

ntdll

WinSqmSetDWORD
NtPowerInformation
RtlNtStatusToDosError

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

RegSetValueExW
RegOpenKeyExW
RegQueryValueExW
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-l1-1-1

DeviceIoControl

api-ms-win-core-file-l1-2-1

CreateFileW

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

CloseHandle

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

ResolveDelayLoadedAPI
DelayLoadFailureHook

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

ApiSetQueryApiSetPresence

Exports

Exports

EapPeerFreeErrorMemory
EapPeerFreeMemory
EapPeerGetInfo

Sections

.text
Size: 109KB - Virtual size: 109KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 1024B - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

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: 7KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

f798061ac56e61be8b5e4dc973e8f2ba

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

msvcrt

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-l1-2-0

ws2_32

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

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

api-ms-win-core-processthreads-l1-1-2

api-ms-win-core-sysinfo-l1-2-1

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

ntdll

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-l1-1-1

api-ms-win-core-file-l1-2-1

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

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

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

Exports

Exports

Sections

.text Size: 109KB - Virtual size: 109KB

.data Size: 1024B - Virtual size: 2KB

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

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

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

.reloc Size: 7KB - Virtual size: 7KB

.text
Size: 109KB - Virtual size: 109KB

.data
Size: 1024B - Virtual size: 2KB

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

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

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

.reloc
Size: 7KB - Virtual size: 7KB