WeChatAppHost[.]dll

Sharing

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General

Target

WeChatAppHost.dll
Size

1.5MB
MD5

f9de54a1b00ffe482f0ab62a04955cc3
SHA1

f3683538597227632c1549c5d34673f5aa614132
SHA256

d50b579ca45df3a60516f5feaf60674ae3146a72cdf609b78a3f1e5cad41bf2c
SHA512

f0408025b5b87b05a81d452ec39806bd188681998a6b47e709f953b0a6a6194cff1beb38e4e76abc4a70d35449af86392a711ab4d60a56372f9cd7e3ff9191aa
SSDEEP

24576:m95UE1mYazDYqAenU1aUV2bXqAzS5d6wiRd9qsVJoUffoSJ+gHQfTidJQdi1wXpk:M9m4qAwUsdX5zS5dDif9dV0eykvg

Score

1^/10

Malware Config

Signatures

Files

WeChatAppHost.dll
.dll windows:5 windows x86 arch:x86

af757890877fb5c46c131e28c97a7f6d

Code Sign

01:ea:62:e4:43:cb:22:50:c8:70:ff:6b:b1:3b:a9:8e
Certificate

Issuer

CN=DigiCert Assured ID Code Signing CA-1,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

14/01/2020, 00:00

Not After

20/01/2021, 12:00

Subject

CN=Tencent Technology(Shenzhen) Company Limited,O=Tencent Technology(Shenzhen) Company Limited,L=Shenzhen,ST=Guangdong,C=CN

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

03:01:9a:02:3a:ff:58:b1:6b:d6:d5:ea:e6:17:f0:66
Certificate

Issuer

CN=DigiCert Assured ID CA-1,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

22/10/2014, 00:00

Not After

22/10/2024, 00:00

Subject

CN=DigiCert Timestamp Responder,O=DigiCert,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

0f:a8:49:06:15:d7:00:a0:be:21:76:fd:c5:ec:6d:bd
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

11/02/2011, 12:00

Not After

10/02/2026, 12:00

Subject

CN=DigiCert Assured ID Code Signing CA-1,OU=www.digicert.com,O=DigiCert Inc,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

06:fd:f9:03:96:03:ad:ea:00:0a:eb:3f:27:bb:ba:1b
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

10/11/2006, 00:00

Not After

10/11/2021, 00:00

Subject

CN=DigiCert Assured ID CA-1,OU=www.digicert.com,O=DigiCert Inc,C=US

Extended Key Usages

ExtKeyUsageServerAuth
ExtKeyUsageClientAuth
ExtKeyUsageCodeSigning
ExtKeyUsageEmailProtection
ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

22/10/2013, 12:00

Not After

22/10/2028, 12:00

Subject

CN=DigiCert SHA2 Assured ID Code Signing CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

04:6e:de:36:46:25:fc:c0:ef:95:5e:52:d2:f2:d2:b2
Certificate

Issuer

CN=DigiCert SHA2 Assured ID Code Signing CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

13/01/2020, 00:00

Not After

20/01/2021, 12:00

Subject

CN=Tencent Technology(Shenzhen) Company Limited,O=Tencent Technology(Shenzhen) Company Limited,L=Shenzhen,ST=Guangdong,C=CN

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

04:cd:3f:85:68:ae:76:c6:1b:b0:fe:71:60:cc:a7:6d
Certificate

Issuer

CN=DigiCert SHA2 Assured ID Timestamping CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

01/10/2019, 00:00

Not After

17/10/2030, 00:00

Subject

CN=TIMESTAMP-SHA256-2019-10-15,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

07/01/2016, 12:00

Not After

07/01/2031, 12:00

Subject

CN=DigiCert SHA2 Assured ID Timestamping CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

f1:08:91:02:db:2a:5e:ae:33:f0:d6:03:ab:ec:a5:88:8a:92:3e:21:66:28:e7:03:a7:04:74:aa:41:40:c9:50
Signer

Actual PE Digest

f1:08:91:02:db:2a:5e:ae:33:f0:d6:03:ab:ec:a5:88:8a:92:3e:21:66:28:e7:03:a7:04:74:aa:41:40:c9:50

Digest Algorithm

sha256

PE Digest Matches

true

69:93:f3:3e:66:58:b4:66:2f:27:a8:6b:87:d1:93:4c:fc:7e:1a:98
Signer

Actual PE Digest

69:93:f3:3e:66:58:b4:66:2f:27:a8:6b:87:d1:93:4c:fc:7e:1a:98

Digest Algorithm

sha1

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

Imports

kernel32

GetUserDefaultLCID
EnumSystemLocalesW
IsValidCodePage
GetACP
GetCommandLineA
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableW
WriteConsoleW
GetOEMCP
CreateEventA
OpenEventA
GetProcessHeap
LeaveCriticalSection
IsValidLocale
ExitProcess
SetStdHandle
GetLastError
EnterCriticalSection
InitializeCriticalSectionAndSpinCount
DeleteCriticalSection
SwitchToThread
TlsAlloc
TlsGetValue
TlsSetValue
CreateFileW
SetLastError
DuplicateHandle
GetCurrentProcess
GetFileSizeEx
ReadFile
WriteFile
CloseHandle
CreateFileMappingW
MapViewOfFile
UnmapViewOfFile
GetProcAddress
LoadLibraryExW
CancelIo
WaitForSingleObject
LocalFree
LoadLibraryW
InitializeCriticalSection
SetEvent
ResetEvent
CreateEventW
Sleep
GetSystemTimeAsFileTime
FreeLibrary
GetModuleHandleW
GetTimeZoneInformation
HeapCreate
HeapDestroy
QueryPerformanceCounter
QueryPerformanceFrequency
GetCurrentThread
SetThreadPriority
GetThreadPriority
IsDebuggerPresent
RaiseException
CreateThread
GetCurrentThreadId
GetCurrentProcessId
GetProcessId
TerminateProcess
GetCommandLineW
GetFileAttributesW
GetStdHandle
SetHandleInformation
ResumeThread
CreateProcessW
AssignProcessToJobObject
OutputDebugStringA
GetLocalTime
GetTickCount
GetModuleFileNameW
FormatMessageA
WaitForMultipleObjects
FlushFileBuffers
SetFilePointerEx
FindClose
FindFirstFileExW
FindNextFileW
CreateIoCompletionPort
GetQueuedCompletionStatus
PostQueuedCompletionStatus
MultiByteToWideChar
WideCharToMultiByte
GetVersionExW
GetNativeSystemInfo
HeapAlloc
HeapReAlloc
HeapFree
HeapSize
GetModuleHandleExW
RtlCaptureStackBackTrace
SetUnhandledExceptionFilter
GetProcessTimes
VirtualQuery
TlsFree
CreateNamedPipeW
ConnectNamedPipe
EncodePointer
DecodePointer
CompareStringW
LCMapStringW
GetLocaleInfoW
GetStringTypeW
GetCPInfo
WaitForSingleObjectEx
UnhandledExceptionFilter
IsProcessorFeaturePresent
GetStartupInfoW
InitializeSListHead
InterlockedFlushSList
RtlUnwind
GetConsoleMode
ReadConsoleW
GetConsoleCP
GetFileType

ole32

CoUninitialize
CoInitializeEx

userenv

DestroyEnvironmentBlock
CreateEnvironmentBlock

advapi32

InitializeAcl
RegQueryValueExW
RegOpenKeyExW
CreateProcessAsUserW
RegCloseKey
SetSecurityDescriptorDacl
InitializeSecurityDescriptor
SystemFunction036
ConvertStringSecurityDescriptorToSecurityDescriptorW

dbghelp

SymSetOptions
SymInitialize
SymFromAddr
SymGetLineFromAddr64

user32

CreateWindowExW
DefWindowProcW
KillTimer
SetTimer
MsgWaitForMultipleObjectsEx
GetQueueStatus
DestroyWindow
SetWindowLongW
UnregisterClassW
GetWindowLongW
RegisterClassExW
TranslateMessage
DispatchMessageW
PeekMessageW
PostMessageW
PostQuitMessage

winmm

timeEndPeriod
timeBeginPeriod
timeGetTime

Exports

Exports

EncryptBufToFile
GetHandleVerifier
Initialize
LanchApplet
RegistrJsApiHandler
SendAppletControlCmd
SendHandlerResponse
UnRegistrJsApiHandler
Uninitialize
__ASSERT

Sections

.text
Size: 745KB - Virtual size: 745KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 97KB - Virtual size: 97KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 6KB - Virtual size: 24KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.gfids
Size: 1024B - Virtual size: 812B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 9B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.vmp0
Size: 682KB - Virtual size: 681KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.reloc
Size: 22KB - Virtual size: 21KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

af757890877fb5c46c131e28c97a7f6d

Code Sign

01:ea:62:e4:43:cb:22:50:c8:70:ff:6b:b1:3b:a9:8eCertificate

Extended Key Usages

Key Usages

03:01:9a:02:3a:ff:58:b1:6b:d6:d5:ea:e6:17:f0:66Certificate

Extended Key Usages

Key Usages

0f:a8:49:06:15:d7:00:a0:be:21:76:fd:c5:ec:6d:bdCertificate

Extended Key Usages

Key Usages

06:fd:f9:03:96:03:ad:ea:00:0a:eb:3f:27:bb:ba:1bCertificate

Extended Key Usages

Key Usages

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08Certificate

Extended Key Usages

Key Usages

04:6e:de:36:46:25:fc:c0:ef:95:5e:52:d2:f2:d2:b2Certificate

Extended Key Usages

Key Usages

04:cd:3f:85:68:ae:76:c6:1b:b0:fe:71:60:cc:a7:6dCertificate

Extended Key Usages

Key Usages

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15Certificate

Extended Key Usages

Key Usages

f1:08:91:02:db:2a:5e:ae:33:f0:d6:03:ab:ec:a5:88:8a:92:3e:21:66:28:e7:03:a7:04:74:aa:41:40:c9:50Signer

69:93:f3:3e:66:58:b4:66:2f:27:a8:6b:87:d1:93:4c:fc:7e:1a:98Signer

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

ole32

userenv

advapi32

dbghelp

user32

winmm

Exports

Exports

Sections

.text Size: 745KB - Virtual size: 745KB

.rdata Size: 97KB - Virtual size: 97KB

.data Size: 6KB - Virtual size: 24KB

.gfids Size: 1024B - Virtual size: 812B

.tls Size: 512B - Virtual size: 9B

.vmp0 Size: 682KB - Virtual size: 681KB

.reloc Size: 22KB - Virtual size: 21KB

.rsrc Size: 1KB - Virtual size: 1KB

01:ea:62:e4:43:cb:22:50:c8:70:ff:6b:b1:3b:a9:8e
Certificate

03:01:9a:02:3a:ff:58:b1:6b:d6:d5:ea:e6:17:f0:66
Certificate

0f:a8:49:06:15:d7:00:a0:be:21:76:fd:c5:ec:6d:bd
Certificate

06:fd:f9:03:96:03:ad:ea:00:0a:eb:3f:27:bb:ba:1b
Certificate

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08
Certificate

04:6e:de:36:46:25:fc:c0:ef:95:5e:52:d2:f2:d2:b2
Certificate

04:cd:3f:85:68:ae:76:c6:1b:b0:fe:71:60:cc:a7:6d
Certificate

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15
Certificate

f1:08:91:02:db:2a:5e:ae:33:f0:d6:03:ab:ec:a5:88:8a:92:3e:21:66:28:e7:03:a7:04:74:aa:41:40:c9:50
Signer

69:93:f3:3e:66:58:b4:66:2f:27:a8:6b:87:d1:93:4c:fc:7e:1a:98
Signer

.text
Size: 745KB - Virtual size: 745KB

.rdata
Size: 97KB - Virtual size: 97KB

.data
Size: 6KB - Virtual size: 24KB

.gfids
Size: 1024B - Virtual size: 812B

.tls
Size: 512B - Virtual size: 9B

.vmp0
Size: 682KB - Virtual size: 681KB

.reloc
Size: 22KB - Virtual size: 21KB

.rsrc
Size: 1KB - Virtual size: 1KB