AppxSip[.]dll | Triage

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General

Target

AppxSip.dll
Size

234KB
MD5

5f96f44388b002ffbd0fb1813a1993a6
SHA1

2fa9b8d9b93b02f48582d1b3688adf6a8ff19a0a
SHA256

c2e2c9898d8fcf1be1aa54e5459160aad6a964a467f46f1d6c364548aa42abe3
SHA512

55c4de57e966fb5559c5272f9f2f33ceddb48e08b2729e6b20eb72bd0209364a7a1101b94419716b7248d2da43e57064c5cf3965fba74851140138241986dbf4
SSDEEP

6144:xLXr1+FA/1qYXAGNJqvA0LBTazutDVszekba5yZAk+:xLXr1NqW/qvzLFazSVYekYyt+

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
AppxSip.dll

Files

AppxSip.dll
.dll regsvr32 windows:10 windows x86 arch:x86

000724d999aab0b5e66a54c1b9bc8114

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

AppxSip.pdb

Imports

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__register_onexit_function
_o__seh_filter_dll
memmove
_o__strnicmp
_o__wcsicmp
_o_free
_o_malloc
_o_qsort
_o_wcscpy_s
__CxxFrameHandler3
_o___stdio_common_vsnwprintf_s
_except_handler4_common
_CxxThrowException
_o___stdio_common_vsnprintf_s
wcschr
wcsstr
_o___std_type_info_destroy_list
_o___std_exception_destroy
_o___stdio_common_vswprintf
_o___std_exception_copy
wcsrchr
memcmp
memcpy

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

memset
wcsncmp

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

GetLastError
SetLastError
UnhandledExceptionFilter
SetUnhandledExceptionFilter
RaiseException

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

InitializeCriticalSectionEx
AcquireSRWLockShared
ReleaseSRWLockExclusive
AcquireSRWLockExclusive
EnterCriticalSection
LeaveCriticalSection
ReleaseSRWLockShared

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

DecodePointer

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

EventSetInformation
EventWriteTransfer
EventRegister
EventUnregister

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

OutputDebugStringW
IsDebuggerPresent
DebugBreak

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

TlsGetValue
GetCurrentProcessId
TerminateProcess
GetCurrentProcess
TlsAlloc
GetCurrentThreadId
TlsSetValue
OpenThreadToken
GetCurrentThread

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

FormatMessageW

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

InitOnceBeginInitialize
InitOnceComplete

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

IsProcessorFeaturePresent

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

QueryPerformanceCounter

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

GetSystemTimeAsFileTime
GetVersionExW
GetLocalTime

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

InitializeSListHead

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

SizeofResource
GetModuleHandleW
FindStringOrdinal
LockResource
FreeLibrary
LoadLibraryExA
GetProcAddress
GetModuleFileNameA
GetModuleHandleExW
LoadLibraryExW
LoadResource

ntdll

RtlNtStatusToDosError
RtlLeaveCriticalSection
RtlSetLastWin32Error
RtlInitializeCriticalSection
RtlReportException
NtQuerySystemInformation
RtlEnumerateGenericTableWithoutSplayingAvl
RtlDeleteElementGenericTableAvl
RtlDeleteCriticalSection
RtlNumberGenericTableElementsAvl
RtlInitUnicodeString
RtlCompareUnicodeString
RtlInsertElementGenericTableAvl
RtlEnterCriticalSection
RtlInitializeGenericTableAvl
RtlLookupElementGenericTableAvl

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

HeapAlloc
HeapFree
GetProcessHeap

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

GetTempPathW

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

CloseHandle

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

GetFileAttributesW
DeleteFileW
DeleteFileA
CreateFileW
GetFullPathNameW

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

CompareStringW
WideCharToMultiByte
CompareStringOrdinal
CompareStringEx

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

PathIsURLW

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

RegGetValueW

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

GetEnvironmentVariableW

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

LocalFree

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

DelayLoadFailureHook

api-ms-win-core-kernel32-legacy-l1-1-0

FileTimeToDosDateTime
DosDateTimeToFileTime
CopyFileW
FindResourceW

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

ReplaceFileW
MoveFileExW

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

CompareStringA

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

SystemTimeToFileTime

api-ms-win-security-base-l1-1-0

ImpersonateLoggedOnUser
RevertToSelf

Exports

Exports

AppxBundleSipCreateIndirectData
AppxBundleSipGetSignedDataMsg
AppxBundleSipIsFileSupportedName
AppxBundleSipPutSignedDataMsg
AppxBundleSipRemoveSignedDataMsg
AppxBundleSipVerifyIndirectData
AppxSipCreateIndirectData
AppxSipGetSignedDataMsg
AppxSipIsFileSupportedName
AppxSipPutSignedDataMsg
AppxSipRemoveSignedDataMsg
AppxSipVerifyIndirectData
DllCanUnloadNow
DllRegisterServer
DllUnregisterServer
EappxBundleSipCreateIndirectData
EappxBundleSipGetSignedDataMsg
EappxBundleSipIsFileSupportedName
EappxBundleSipPutSignedDataMsg
EappxBundleSipRemoveSignedDataMsg
EappxBundleSipVerifyIndirectData
EappxSipCreateIndirectData
EappxSipGetSignedDataMsg
EappxSipIsFileSupportedName
EappxSipPutSignedDataMsg
EappxSipRemoveSignedDataMsg
EappxSipVerifyIndirectData
P7xSipCreateIndirectData
P7xSipGetSignedDataMsg
P7xSipIsFileSupportedName
P7xSipPutSignedDataMsg
P7xSipRemoveSignedDataMsg
P7xSipVerifyIndirectData

Sections

.text
Size: 211KB - Virtual size: 211KB

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: 6KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.didat
Size: 512B - Virtual size: 240B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 7KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 8KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

000724d999aab0b5e66a54c1b9bc8114

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

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-core-errorhandling-l1-1-0

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

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

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

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

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

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

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

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

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

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

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

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

ntdll

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

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

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

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

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

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

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

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

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

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

api-ms-win-core-kernel32-legacy-l1-1-0

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

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

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

api-ms-win-security-base-l1-1-0

Exports

Exports

Sections

.text Size: 211KB - Virtual size: 211KB

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

.idata Size: 6KB - Virtual size: 5KB

.didat Size: 512B - Virtual size: 240B

.rsrc Size: 7KB - Virtual size: 6KB

.reloc Size: 8KB - Virtual size: 7KB

.text
Size: 211KB - Virtual size: 211KB

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

.idata
Size: 6KB - Virtual size: 5KB

.didat
Size: 512B - Virtual size: 240B

.rsrc
Size: 7KB - Virtual size: 6KB

.reloc
Size: 8KB - Virtual size: 7KB