dnshc[.]dll | Triage

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General

Target

dnshc.dll
Size

78KB
MD5

8d26e72450b68ddda591b8828c4d05e1
SHA1

df1463c63eae10ce403515634ae2028344adab9c
SHA256

c7069cb26ef7f7b9a950d69ec46614cc5a0702a97d78e6c074cab9a0f9584036
SHA512

423ad9b8880e24381421230bbd0d509073b3f59e4c919a21454b1a23a4bc3d22cdaff80e5ce84eef29a2e94383bef3c7f23991eba9bbee126c3c21e7ae7e689e
SSDEEP

1536:4WNSoAGmaTHoxxS6SkZbqIDts4QSJBY0Jy1w137u5cza:OJUELxS8/BUC37u5cu

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
dnshc.dll

Files

dnshc.dll
.dll regsvr32 windows:6 windows x86 arch:x86

f2f1a2488772103b9d728d4aa2e17cae

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

PDB Paths

dnsHC.pdb

Imports

msvcrt

wcscat_s
memmove_s
??0exception@@QAE@XZ
?what@exception@@UBEPBDXZ
??1exception@@UAE@XZ
wcsncmp
malloc
free
memcpy_s
_CxxThrowException
vswprintf_s
??0exception@@QAE@ABQBD@Z
??0exception@@QAE@ABV0@@Z
_callnewh
_XcptFilter
_initterm
_amsg_exit
?terminate@@YAXXZ
??1type_info@@UAE@XZ
_except_handler4_common
wcscpy_s
_vsnwprintf
calloc
realloc
_errno
_unlock
__dllonexit
_lock
_onexit
_vscwprintf
memset
memcpy
wcsstr
wcsnlen
wcschr
_purecall
__CxxFrameHandler3
wcsncpy_s

ntdll

RtlIpv4AddressToStringW
RtlIpv6AddressToStringW

kernel32

FormatMessageW
LocalFree
FindResourceExW
LockResource
OutputDebugStringA
SetUnhandledExceptionFilter
UnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
GetCurrentProcessId
lstrlenW
RaiseException
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSection
DeleteCriticalSection
GetLastError
InterlockedIncrement
InterlockedDecrement
LoadLibraryW
GetProcAddress
GetModuleHandleW
lstrcmpiW
GetSystemTimeAsFileTime
CloseHandle
WaitForMultipleObjectsEx
CreateThread
WaitForSingleObjectEx
InterlockedCompareExchange
ExpandEnvironmentStringsW
FreeLibrary
MultiByteToWideChar
SizeofResource
LoadResource
FindResourceW
LoadLibraryExW
GetModuleFileNameW
HeapFree
HeapAlloc
GetProcessHeap
ExitThread
lstrlenA
DisableThreadLibraryCalls
SetThreadLocale
GetThreadLocale
HeapDestroy
HeapReAlloc
HeapSize
GetVersionExA
InterlockedExchange
Sleep
QueryPerformanceCounter
GetTickCount
GetCurrentThreadId

advapi32

RegCloseKey
RegCreateKeyExW
RegOpenKeyExW
RegSetValueExW
RegQueryInfoKeyW
EventWrite
EventActivityIdControl
EventWriteTransfer
RegEnumKeyExW
IsValidSid
RegQueryValueExW
EventRegister
EventUnregister
RegDeleteValueW

user32

UnregisterClassA
LoadStringW
CharNextW

ole32

CLSIDFromString
CoCreateInstance
CoTaskMemRealloc
CoTaskMemFree
CoTaskMemAlloc
StringFromGUID2

oleaut32

SysStringLen
RegisterTypeLi
VarUI4FromStr
UnRegisterTypeLi
SysAllocString
LoadTypeLi
SysFreeString

iphlpapi

GetAdaptersAddresses
GetNetworkParams
ConvertInterfaceLuidToIndex
ConvertInterfaceGuidToLuid

netapi32

DsRoleFreeMemory
DsRoleGetPrimaryDomainInformation

ws2_32

WSACleanup
FreeAddrInfoW
GetAddrInfoW
WSAStartup
htons
GetNameInfoW

dnsapi

DnsFreeConfigStructure
DnsQueryConfigAllocEx
DnsGetPolicyTableInfo
DnsValidateName_W
DnsFree
DnsQuery_W
DnsValidateServer_W
DnsFreePolicyConfig

Exports

Exports

DllCanUnloadNow
DllGetClassObject
DllRegisterServer
DllUnregisterServer

Sections

.text
Size: 69KB - Virtual size: 68KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 1KB - Virtual size: 2KB

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: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

f2f1a2488772103b9d728d4aa2e17cae

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

msvcrt

ntdll

kernel32

advapi32

user32

ole32

oleaut32

iphlpapi

netapi32

ws2_32

dnsapi

Exports

Exports

Sections

.text Size: 69KB - Virtual size: 68KB

.data Size: 1KB - Virtual size: 2KB

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

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

.text
Size: 69KB - Virtual size: 68KB

.data
Size: 1KB - Virtual size: 2KB

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

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