TtlsAuth[.]dll

Sharing

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General

Target

TtlsAuth.dll
Size

191KB
MD5

f503b382904bc9f3191187665f3817fe
SHA1

8982d563d48c197b49b1bd391a145831203cfd5a
SHA256

02b34172c20f37dc400d4689930a7644ca62367c0be8c605b2d02e83176b942e
SHA512

4425bd3a56b91f68f014dfee778660e4fd9b016cdc85fbad7f5497c8623cb03af2a76490c728642771a1ccfa6742e8978f1447af701f39116cf2e30f66d13c61
SSDEEP

3072:h5+UoSh4wFIV63WCQQ6vZgH9zXl8gWt9OTXTueqF2qZGT+9PJ6HP4iXeRA2v4l24:HJoSoGWCuSH78gWas2qZGT+9PRiOnv4Z

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
TtlsAuth.dll

Files

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

7b72cf3c38df359004af3a3a768fbc31

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

TtlsAuth.pdb

Imports

msvcrt

abort
_free_locale
_get_current_locale
__crtLCMapStringW
__crtCompareStringW
_wcsdup
memset
_ismbblead
___mb_cur_max_func
memcmp
___lc_codepage_func
___lc_handle_func
__pctype_func
setlocale
___lc_collate_cp_func
strnlen
strcat_s
strcpy_s
strncat_s
strchr
_vsnwprintf
sscanf_s
wcschr
strstr
atol
swprintf_s
_wcsicmp
??0bad_cast@@QAE@ABV0@@Z
??0bad_cast@@QAE@PBD@Z
??1bad_cast@@UAE@XZ
realloc
_errno
_except_handler4_common
??1type_info@@UAE@XZ
?terminate@@YAXXZ
_onexit
__dllonexit
_unlock
_lock
_initterm
_amsg_exit
_XcptFilter
memmove
memcpy
_CxxThrowException
?what@exception@@UBEPBDXZ
??1exception@@UAE@XZ
??0exception@@QAE@ABV0@@Z
??0exception@@QAE@ABQBDH@Z
??0exception@@QAE@ABQBD@Z
_callnewh
calloc
wcsncpy_s
malloc
free
wcscat_s
wcscpy_s
memcpy_s
??_V@YAXPAX@Z
_purecall
??3@YAXPAX@Z
__CxxFrameHandler3

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

GetTraceEnableFlags
TraceMessage
UnregisterTraceGuids
GetTraceLoggerHandle
GetTraceEnableLevel
RegisterTraceGuidsW

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

RevertToSelf
GetTokenInformation
CheckTokenMembership
ImpersonateLoggedOnUser

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

GetLastError
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RaiseException

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

EventWriteTransfer
EventSetInformation
EventUnregister
EventRegister

oleaut32

VarUI4FromStr

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

LoadResource
GetProcAddress
FindResourceExW
DisableThreadLibraryCalls
SizeofResource
FreeLibrary
GetModuleHandleW
LoadStringW
GetModuleFileNameW
LoadLibraryExW

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

WaitForSingleObject
InitializeCriticalSectionEx
DeleteCriticalSection
LeaveCriticalSection
InitializeCriticalSection
EnterCriticalSection

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

CoTaskMemAlloc
CoRevertToSelf
CoTaskMemFree
CoImpersonateClient
StringFromGUID2
CoTaskMemRealloc
CoCreateInstance

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

RegOpenKeyExW
RegQueryValueExW
RegSetValueExW
RegCloseKey
RegDeleteValueW
RegLoadKeyW
RegQueryInfoKeyW
RegUnLoadKeyW
RegCreateKeyExW
RegEnumKeyExW

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

CharNextW

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

WideCharToMultiByte
GetStringTypeW
MultiByteToWideChar

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

ExpandEnvironmentStringsW

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

Sleep

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

GetCurrentProcess
CreateThread
GetCurrentProcessId
TerminateProcess
OpenThreadToken
GetCurrentThread
GetCurrentThreadId

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

QueryPerformanceCounter

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

GetSystemTime
GetSystemTimeAsFileTime
GetTickCount
GetComputerNameExW

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

OutputDebugStringA

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

lstrcmpiW

eappprxy

EapHostPeerInitialize
EapHostPeerGetIdentity
EapHostPeerFreeRuntimeMemory
EapHostPeerFreeEapError
EapHostPeerProcessReceivedPacket
EapHostPeerGetResponseAttributes
EapHostPeerEndSession
EapHostPeerGetResult
EapHostPeerSetResponseAttributes
EapHostPeerGetSendPacket
EapHostPeerBeginSession
EapHostPeerGetUIContext
EapHostPeerSetUIContext
EapHostPeerUninitialize

ntdll

RtlGetPersistedStateLocation
RtlCreateUnicodeStringFromAsciiz
WinSqmSetDWORD
RtlNtStatusToDosError
RtlFreeUnicodeString
RtlInitString

sspicli

InitializeSecurityContextW
DecryptMessage
EncryptMessage
FreeContextBuffer
SetContextAttributesW
QueryContextAttributesW
LsaDeregisterLogonProcess
DeleteSecurityContext
GetUserNameExW
AcquireCredentialsHandleW
LsaFreeReturnBuffer
LsaLookupAuthenticationPackage
LsaCallAuthenticationPackage
LsaRegisterLogonProcess

crypt32

CryptDecodeObjectEx
CryptProtectData
CertDuplicateCertificateContext
CryptUnprotectData
CertVerifySubjectCertificateContext
CertVerifyCertificateChainPolicy
CertCompareCertificateName
CertOpenStore
CertGetNameStringW
CertFindCertificateInStore
CertGetCertificateChain
CertCloseStore
CertGetEnhancedKeyUsage
CertGetCertificateContextProperty
CertVerifyTimeValidity
CertFindExtension
CertFreeCertificateContext
CryptBinaryToStringW

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

FileTimeToSystemTime
SystemTimeToFileTime

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

CompareFileTime

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

CredIsProtectedW
CredUnprotectW
CredWriteA

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

LocalAlloc
LocalFree

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

DuplicateHandle
CloseHandle

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

ConvertStringSidToSidW

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

ResolveDelayLoadedAPI

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

DelayLoadFailureHook

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

DecodePointer
EncodePointer

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

ApiSetQueryApiSetPresence

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

HeapFree
HeapAlloc
GetProcessHeap

samlib

SamiEncryptPasswords

Exports

Exports

DllCanUnloadNow
DllGetClassObject
DllRegisterServer
DllUnregisterServer
EapPeerFreeErrorMemory
EapPeerFreeMemory
EapPeerGetInfo

Sections

.text
Size: 168KB - Virtual size: 168KB

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: 8KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.didat
Size: 512B - Virtual size: 92B

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: 9KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

7b72cf3c38df359004af3a3a768fbc31

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

msvcrt

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

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

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

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

oleaut32

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

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

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

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

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

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

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

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

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

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

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

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

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

eappprxy

ntdll

sspicli

crypt32

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

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

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

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

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

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

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

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

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

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

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

samlib

Exports

Exports

Sections

.text Size: 168KB - Virtual size: 168KB

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

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

.didat Size: 512B - Virtual size: 92B

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

.reloc Size: 9KB - Virtual size: 8KB

.text
Size: 168KB - Virtual size: 168KB

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

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

.didat
Size: 512B - Virtual size: 92B

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

.reloc
Size: 9KB - Virtual size: 8KB