LockAppHost[.]exe

Sharing

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General

Target

LockAppHost.exe
Size

109KB
MD5

47b0a5a801fa23bb71283acea3ea71d6
SHA1

6501af93f7be2e12a143f4ee041b588cd171e1d1
SHA256

e10424787a00cab4a0367e3665c05ef15c720ded58d53ed5295ea193373e9af0
SHA512

1ba9b1b2fd8362b08df86b1939ba5a68943f11be225e10f4192ec575331098b302ccdd1a436e50a203954412def4653d0b9c355ee7aea59d5b779a452f45821c
SSDEEP

1536:tMkITM33JWXinpCP5Vpmf0ThYJMtDVV5gt+WD9RKUlkFSp9VPcp:/fpWSnp3fADVVA+a9UUSFSTV0p

Score

1^/10

Malware Config

Signatures

Files

LockAppHost.exe
.exe windows:10 windows x64 arch:x64

7b7217667beb2d7c80cef634850ceb9f

Code Sign

33:00:00:02:ed:2c:45:e4:c1:45:cf:48:44:00:00:00:00:02:ed
Certificate

Issuer

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

Not Before

15/12/2020, 21:29

Not After

02/12/2021, 21:29

Subject

CN=Microsoft Windows,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

8d:6c:8d:7d:8e:73:4d:85:51:a4:40:b4:8a:0a:52:c0:85:b3:55:61:55:af:46:d0:85:1e:0a:22:64:b1:c1:b3
Signer

Actual PE Digest

8d:6c:8d:7d:8e:73:4d:85:51:a4:40:b4:8a:0a:52:c0:85:b3:55:61:55:af:46:d0:85:1e:0a:22:64:b1:c1:b3

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_FORCE_INTEGRITY
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

LockAppHost.pdb

Imports

user32

GetMessageA
DispatchMessageA
PostThreadMessageA
TranslateMessage

msvcrt

_XcptFilter
_amsg_exit
__wgetmainargs
_vsnprintf_s
__set_app_type
exit
memmove
??0exception@@QEAA@AEBV0@@Z
??0exception@@QEAA@XZ
_exit
memcpy
_initterm
memmove_s
_wcmdln
_fmode
_commode
__CxxFrameHandler3
??1exception@@UEAA@XZ
_purecall
?terminate@@YAXXZ
_lock
_unlock
??3@YAXPEAX@Z
_CxxThrowException
memcpy_s
_vsnwprintf
__C_specific_handler
__dllonexit
__setusermatherr
_onexit
??1type_info@@UEAA@XZ
memcmp
_cexit
??_V@YAXPEAX@Z
__CxxFrameHandler4
malloc
_callnewh
??0exception@@QEAA@AEBQEBD@Z
??0exception@@QEAA@AEBQEBDH@Z
?what@exception@@UEBAPEBDXZ
memset

lockhostingframework

StartLockAppHostServer
ShutdownLockAppHostServer

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

CoReleaseServerProcess
CoAddRefServerProcess
CoUninitialize
CoResumeClassObjects
CoCreateInstance
CoRegisterClassObject
CoInitializeEx
CoRevokeClassObject
CoTaskMemAlloc

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

GetProcAddress
GetModuleHandleW
GetModuleHandleExW
GetModuleFileNameA

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

InitOnceComplete
InitOnceExecuteOnce
InitOnceBeginInitialize
Sleep

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

WaitForSingleObjectEx
OpenSemaphoreW
ReleaseMutex
LeaveCriticalSection
ReleaseSRWLockExclusive
InitializeCriticalSectionEx
ReleaseSRWLockShared
AcquireSRWLockExclusive
ReleaseSemaphore
CreateSemaphoreExW
WaitForSingleObject
EnterCriticalSection
DeleteCriticalSection
AcquireSRWLockShared
CreateMutexExW

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

HeapAlloc
GetProcessHeap
HeapFree

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

SetLastError
UnhandledExceptionFilter
GetLastError
SetUnhandledExceptionFilter

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

WindowsCreateString
WindowsGetStringRawBuffer
WindowsIsStringEmpty
WindowsStringHasEmbeddedNull
WindowsDeleteString

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

TerminateProcess
GetStartupInfoW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId

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

EventUnregister
EventRegister
EventWriteTransfer
EventSetInformation

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

DecodePointer
EncodePointer

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

WaitForThreadpoolTimerCallbacks
SetThreadpoolTimer
CreateThreadpoolTimer
CloseThreadpoolTimer

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

RoRevokeActivationFactories
RoRegisterActivationFactories

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

RoOriginateError
RoOriginateErrorW

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

FormatMessageW

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

DebugBreak
IsDebuggerPresent
OutputDebugStringW

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

CloseHandle

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

RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext

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

QueryPerformanceCounter

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

GetSystemTimeAsFileTime
GetTickCount

imm32

ImmDisableIME

Sections

.text
Size: 56KB - Virtual size: 53KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.imrsiv
Size: - Virtual size: 4B

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 24KB - Virtual size: 21KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 4KB - Virtual size: 1008B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 4KB - Virtual size: 700B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

7b7217667beb2d7c80cef634850ceb9f

Code Sign

33:00:00:02:ed:2c:45:e4:c1:45:cf:48:44:00:00:00:00:02:edCertificate

Extended Key Usages

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

Key Usages

8d:6c:8d:7d:8e:73:4d:85:51:a4:40:b4:8a:0a:52:c0:85:b3:55:61:55:af:46:d0:85:1e:0a:22:64:b1:c1:b3Signer

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

user32

msvcrt

lockhostingframework

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

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

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

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

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

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

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

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

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

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

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

imm32

Sections

.text Size: 56KB - Virtual size: 53KB

.imrsiv Size: - Virtual size: 4B

.rdata Size: 24KB - Virtual size: 21KB

.data Size: 4KB - Virtual size: 3KB

.pdata Size: 4KB - Virtual size: 3KB

.rsrc Size: 4KB - Virtual size: 1008B

.reloc Size: 4KB - Virtual size: 700B

33:00:00:02:ed:2c:45:e4:c1:45:cf:48:44:00:00:00:00:02:ed
Certificate

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

8d:6c:8d:7d:8e:73:4d:85:51:a4:40:b4:8a:0a:52:c0:85:b3:55:61:55:af:46:d0:85:1e:0a:22:64:b1:c1:b3
Signer

.text
Size: 56KB - Virtual size: 53KB

.imrsiv
Size: - Virtual size: 4B

.rdata
Size: 24KB - Virtual size: 21KB

.data
Size: 4KB - Virtual size: 3KB

.pdata
Size: 4KB - Virtual size: 3KB

.rsrc
Size: 4KB - Virtual size: 1008B

.reloc
Size: 4KB - Virtual size: 700B