AuthExt[.]dll | Triage

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General

Target

AuthExt.dll
Size

53KB
MD5

8fa2baaa75b89f0bd59acd1e82571689
SHA1

3aa9a43f62abf9f602cc6a67173ac7ce27ef78dc
SHA256

1f5dbcc1bac9f3859573ab9343d3561e1f12f6936dc9631530bc64f57bbbfb9a
SHA512

d424598d472c5fdb126e5b3de3f91ee7174176ba3fe4067cd627ef03e1e1d238eade71153f08e259b8242615cd6825fd2262f68fb0131fbfc0ea4d5ae6a86473
SSDEEP

1536:AkgrJ259Aq27AB1wV0aStNcfx2u7zCE5TBla:Q125ivASbfAu7uAy

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
AuthExt.dll

Files

AuthExt.dll
.dll windows:10 windows x86 arch:x86

07b58690547cf9fcd787c098ac42b450

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

AuthExt.pdb

Imports

msvcrt

_vsnwprintf
memmove
memcmp
__CxxFrameHandler3
_onexit
__dllonexit
_unlock
_lock
_initterm
malloc
_amsg_exit
_XcptFilter
free
_callnewh
_purecall
memcpy_s
_except_handler4_common
memset

shell32

DuplicateIcon

shlwapi

ord278
ord16
ord176

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

DisableThreadLibraryCalls
GetProcAddress
GetModuleHandleW
GetModuleFileNameA
GetModuleHandleExW
GetModuleFileNameW
LoadLibraryExW
GetModuleHandleA
LoadStringW
FreeLibrary

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

ReleaseSemaphore
AcquireSRWLockShared
WaitForSingleObject
ReleaseSRWLockShared
DeleteCriticalSection
WaitForSingleObjectEx
AcquireSRWLockExclusive
ReleaseSRWLockExclusive
CreateEventW
LeaveCriticalSection
CreateSemaphoreExW
EnterCriticalSection
CreateMutexExW
OpenSemaphoreW
ReleaseMutex
WaitForMultipleObjectsEx
SetEvent
InitializeCriticalSection

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

HeapFree
GetProcessHeap
HeapAlloc

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

SetUnhandledExceptionFilter
UnhandledExceptionFilter
SetLastError
GetLastError

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

GetCurrentProcessId
GetCurrentThreadId
GetCurrentProcess
TerminateProcess

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

FormatMessageW

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

DebugBreak
IsDebuggerPresent
OutputDebugStringA
OutputDebugStringW

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

CloseHandle

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

CompareStringOrdinal

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

CoCreateInstance
CoGetApartmentType
CoWaitForMultipleHandles
CoTaskMemFree
CoTaskMemRealloc
CoCreateFreeThreadedMarshaler
CoTaskMemAlloc
CoGetMalloc

api-ms-win-core-winrt-error-l1-1-0

RoOriginateError

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

EventWriteTransfer
EventSetInformation
EventUnregister
EventRegister

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

EncodePointer
DecodePointer

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

InitOnceComplete
Sleep
WakeAllConditionVariable
InitOnceBeginInitialize
SleepConditionVariableSRW

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

RegSetValueExW
RegCreateKeyExW
RegCloseKey
RegGetValueW

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

GetTickCount
GetSystemTimeAsFileTime

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

LoadLibraryW
LoadLibraryA

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

QueryPerformanceCounter

ntdll

RtlSubscribeWnfStateChangeNotification
RtlUnsubscribeWnfStateChangeNotification

propsys

PSCreateMemoryPropertyStore

user32

PeekMessageW
PostQuitMessage
TranslateMessage
MsgWaitForMultipleObjectsEx
UnregisterDeviceNotification
DispatchMessageW
UnregisterPowerSettingNotification
PostMessageW
SetTimer
KillTimer
RegisterDeviceNotificationW
SetCursor
RegisterPowerSettingNotification
DestroyWindow
GetSysColor
DestroyIcon
LoadCursorW
SystemParametersInfoW
SetWindowLongW
DefWindowProcA
GetWindowLongW
DefWindowProcW
IsWindowUnicode

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

ResolveDelayLoadedAPI

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

DelayLoadFailureHook

Exports

Exports

DllCanUnloadNow
DllGetClassObject

Sections

.text
Size: 40KB - Virtual size: 40KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.didat
Size: 512B - Virtual size: 68B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

07b58690547cf9fcd787c098ac42b450

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

msvcrt

shell32

shlwapi

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

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

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

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

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

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

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

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

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

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

api-ms-win-core-winrt-error-l1-1-0

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

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

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

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

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

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

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

ntdll

propsys

user32

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

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

Exports

Exports

Sections

.text Size: 40KB - Virtual size: 40KB

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

.idata Size: 5KB - Virtual size: 4KB

.didat Size: 512B - Virtual size: 68B

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

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

.text
Size: 40KB - Virtual size: 40KB

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

.idata
Size: 5KB - Virtual size: 4KB

.didat
Size: 512B - Virtual size: 68B

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

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