cscobj[.]dll | Triage

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General

Target

cscobj.dll
Size

198KB
MD5

a3a52619f4aed162222e256c7754683e
SHA1

4a1bb4ca072ad6f73166102bfd58a9d9a8f0341f
SHA256

0203b2e5340ca7cf18f19f95e05c51cf0b5997743f7ab528e1d7e951436f7f0d
SHA512

5bc48f2909a13022e8d4a7d32d2caf9fe38a6af355d5cf994ceba73aac6bcb6acfac6934ee22e4a6f39162c38a5bef882726da3f77be267af0029ad6ef01aef5
SSDEEP

3072:PrtqTdmcgesdBK9FxYN+6zwOw+s7YR1MzW+obBj5L1:DtMsTdoATRqzfgB

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
cscobj.dll

Files

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

ec5eeecacc2d080159a3c27b18e5345f

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

cscobj.pdb

Imports

msvcrt

_amsg_exit
memcpy_s
_initterm
?terminate@@YAXXZ
_ftol2
_lock
_unlock
__dllonexit
_onexit
__CxxFrameHandler3
_except_handler4_common
_purecall
memmove
wcscspn
wcschr
memmove_s
_vsnwprintf
_i64tow_s
free
malloc
_callnewh
_XcptFilter
wcsspn
memcmp
memset

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

CoTaskMemFree
CoTaskMemAlloc
CoSetProxyBlanket
CoQueryProxyBlanket
CoRevertToSelf
CoMarshalInterface
CreateStreamOnHGlobal
CoGetCallContext
CoUnmarshalInterface
CoGetInterfaceAndReleaseStream
CoCreateInstance
CoMarshalInterThreadInterfaceInStream
CoUninitialize
CoInitializeEx
CoWaitForMultipleHandles
CoCreateInstanceEx

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

GetTokenInformation
CopySid
DuplicateTokenEx
IsValidSid
RevertToSelf
ImpersonateLoggedOnUser
GetLengthSid

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

GetCurrentProcessId
SetThreadToken
GetCurrentThreadId
GetCurrentThread
TerminateProcess
GetCurrentProcess
OpenThreadToken
CreateThread

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

SizeofResource
LockResource
FreeLibrary
LoadResource
GetProcAddress
LoadStringW
FindResourceExW
DisableThreadLibraryCalls
FreeLibraryAndExitThread

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

UnhandledExceptionFilter
SetUnhandledExceptionFilter
SetLastError
RaiseException
GetLastError

api-ms-win-core-libraryloader-l1-2-1

FindResourceW
LoadLibraryW

userenv

ProcessGroupPolicyCompleted

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

InitializeCriticalSectionAndSpinCount
LeaveCriticalSection
EnterCriticalSection
DeleteCriticalSection
WaitForSingleObject
InitializeCriticalSection
CreateEventW
AcquireSRWLockExclusive
ReleaseSRWLockExclusive
SetEvent

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

RegCreateKeyExW
RegEnumValueW
RegDeleteValueW
RegCloseKey
RegSetValueExW
RegQueryValueExW
RegOpenKeyExW
RegDeleteKeyExW
RegOpenCurrentUser

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

GetTickCount
GetSystemTimeAsFileTime
GetSystemWindowsDirectoryW

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

CloseHandle
DuplicateHandle

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

LocalFree

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

FileTimeToSystemTime

rpcrt4

CStdStubBuffer_Invoke
NdrDllCanUnloadNow
NdrDllGetClassObject
IUnknown_Release_Proxy
CStdStubBuffer_AddRef
NdrDllRegisterProxy
NdrDllUnregisterProxy
NdrCStdStubBuffer2_Release
CStdStubBuffer_CountRefs
NdrStubForwardingFunction
CStdStubBuffer_QueryInterface
NdrOleAllocate
CStdStubBuffer_DebugServerRelease
CStdStubBuffer_Disconnect
NdrOleFree
IUnknown_QueryInterface_Proxy
CStdStubBuffer_IsIIDSupported
CStdStubBuffer_Connect
NdrStubCall2
NdrCStdStubBuffer_Release
IUnknown_AddRef_Proxy
CStdStubBuffer_DebugServerQueryInterface

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

CStdAsyncStubBuffer_Connect
ObjectStublessClient27
NdrProxyForwardingFunction6
CStdStubBuffer2_Connect
ObjectStublessClient26
ObjectStublessClient4
ObjectStublessClient22
ObjectStublessClient15
ObjectStublessClient24
ObjectStublessClient5
NdrProxyForwardingFunction3
ObjectStublessClient21
CStdStubBuffer2_QueryInterface
ObjectStublessClient16
CStdAsyncStubBuffer_AddRef
CStdAsyncStubBuffer_Invoke
CStdAsyncStubBuffer_Disconnect
ObjectStublessClient19
ObjectStublessClient20
ObjectStublessClient25
ObjectStublessClient14
ObjectStublessClient10
ObjectStublessClient11
CStdStubBuffer2_CountRefs
ObjectStublessClient13
ObjectStublessClient17
ObjectStublessClient7
ObjectStublessClient9
ObjectStublessClient8
CStdAsyncStubBuffer_QueryInterface
ObjectStublessClient6
ObjectStublessClient3
ObjectStublessClient18
ObjectStublessClient12
NdrProxyForwardingFunction4
CStdStubBuffer2_Disconnect
NdrProxyForwardingFunction7
CStdAsyncStubBuffer_Release
ObjectStublessClient23
NdrProxyForwardingFunction5

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

GetProcessHeap
HeapFree
HeapAlloc
HeapDestroy
HeapSize
HeapReAlloc

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

CompareStringOrdinal
CompareStringW

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

ExpandEnvironmentStringsW

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

WakeAllConditionVariable
SleepConditionVariableSRW
Sleep

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

QueryPerformanceCounter

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

lstrcmpiW

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

HWND_UserSize
HWND_UserUnmarshal
HWND_UserMarshal
HWND_UserFree

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

QueueUserWorkItem

ntdll

RtlGetLengthWithoutLastFullDosOrNtPathElement
RtlpApplyLengthFunction
RtlAppendPathElement
RtlpEnsureBufferSize
RtlInitUnicodeString
RtlFreeUnicodeString
EtwUnregisterTraceGuids
RtlGetLengthWithoutTrailingPathSeperators
EtwGetTraceEnableFlags
EtwGetTraceEnableLevel
EtwGetTraceLoggerHandle
RtlNtStatusToDosError
EtwTraceMessage
EtwRegisterTraceGuidsW

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

OpenProcess

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

ConvertStringSidToSidW
ConvertSidToStringSidW

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

FormatMessageW

api-ms-win-security-lsalookup-l2-1-0

LookupAccountSidW

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

ResolveDelayLoadedAPI

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

DelayLoadFailureHook

wtsapi32

WTSQueryUserToken

Exports

Exports

DllCanUnloadNow
DllGetClassObject
DllRegisterServer
DllUnregisterServer
ProcessGroupPolicy
ProcessPolicy

Sections

.text
Size: 171KB - Virtual size: 170KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 2KB - Virtual size: 4KB

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: 152B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 14KB - Virtual size: 13KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

ec5eeecacc2d080159a3c27b18e5345f

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

msvcrt

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

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

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

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

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

api-ms-win-core-libraryloader-l1-2-1

userenv

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

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

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

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

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

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

rpcrt4

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

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

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-profile-l1-1-0

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

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

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

ntdll

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

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

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

api-ms-win-security-lsalookup-l2-1-0

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

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

wtsapi32

Exports

Exports

Sections

.text Size: 171KB - Virtual size: 170KB

.data Size: 2KB - Virtual size: 4KB

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

.didat Size: 512B - Virtual size: 152B

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

.reloc Size: 14KB - Virtual size: 13KB

.text
Size: 171KB - Virtual size: 170KB

.data
Size: 2KB - Virtual size: 4KB

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

.didat
Size: 512B - Virtual size: 152B

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

.reloc
Size: 14KB - Virtual size: 13KB