gopa[.]dll | Triage

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General

Target

gopa.dll
Size

256KB
MD5

b808980f5424384fd18ee5ed46dba287
SHA1

cb5cafb6e61fee9d6ff4bff1b92b4064d63f8d87
SHA256

4c03f7e436a286e95a5ee3ab246f5f5af596716c6200eb79eeb956a436385c97
SHA512

194320cb050f4aaf40981abc89b273a6800e9881bec59ad6e66a588dd78f5811cc40f1503f0303766b4a68c772ac034a2a96ac3f6cc8762bd35ac6e4ee7af5fa
SSDEEP

3072:LZy+oNbD3KVdxPCUJ2ZDZyoqPZ+x9TtDyY78FEL9DUU2p+MTml5VagpqqvX/6e/F:LZy+oF2xCjygbtDnHunw5FvT2

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
gopa.dll

Files

gopa.dll
.dll regsvr32 windows x64

ee91c40a954ced487e53a4d78713f906

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DLL

Imports

ntdll

NtWriteFile
NtReadVirtualMemory
RtlNtStatusToDosError
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
NtWaitForSingleObject
NtCreateThreadEx
NtProtectVirtualMemory
NtWriteVirtualMemory
NtAllocateVirtualMemory

kernel32

IsDebuggerPresent
DisableThreadLibraryCalls
GetCurrentThreadId
UnhandledExceptionFilter
InitializeSListHead
SetUnhandledExceptionFilter
GetModuleHandleW
GetSystemTimeAsFileTime
GetConsoleWindow
LoadLibraryA
GetProcAddress
WriteProcessMemory
CreateProcessA
CreateFileW
CreateFileMappingW
CloseHandle
MapViewOfFile
UnmapViewOfFile
GetCurrentProcess
ReleaseSRWLockExclusive
ReleaseMutex
ReleaseSRWLockShared
GetLastError
AcquireSRWLockExclusive
GetCurrentThread
SetLastError
GetCurrentDirectoryW
GetEnvironmentVariableW
GetStdHandle
GetCurrentProcessId
WaitForSingleObject
TryAcquireSRWLockExclusive
QueryPerformanceCounter
HeapAlloc
GetProcessHeap
HeapFree
HeapReAlloc
AcquireSRWLockShared
WaitForSingleObjectEx
CreateMutexA
GetModuleHandleA
GetConsoleMode
IsProcessorFeaturePresent
FormatMessageW
ExitProcess
MultiByteToWideChar
WriteConsoleW
TlsGetValue
TlsSetValue

psapi

GetModuleBaseNameW
EnumProcessModulesEx

user32

ShowWindow
SetWindowPos

vcruntime140

__C_specific_handler
_CxxThrowException
__CxxFrameHandler3
memcmp
__std_type_info_destroy_list
memcpy
memmove
memset

api-ms-win-crt-runtime-l1-1-0

_cexit
_initialize_onexit_table
_initterm
_initterm_e
_seh_filter_dll
_execute_onexit_table
_initialize_narrow_environment
_configure_narrow_argv

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

free

Exports

Exports

DllGetClassObject
DllRegisterServer
DllUnregisterServer
Run

Sections

.text
Size: 122KB - Virtual size: 121KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 126KB - Virtual size: 126KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 776B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

ee91c40a954ced487e53a4d78713f906

Headers

DLL Characteristics

File Characteristics

Imports

ntdll

kernel32

psapi

user32

vcruntime140

api-ms-win-crt-runtime-l1-1-0

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

Exports

Exports

Sections

.text Size: 122KB - Virtual size: 121KB

.rdata Size: 126KB - Virtual size: 126KB

.data Size: 512B - Virtual size: 776B

.pdata Size: 5KB - Virtual size: 4KB

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

.text
Size: 122KB - Virtual size: 121KB

.rdata
Size: 126KB - Virtual size: 126KB

.data
Size: 512B - Virtual size: 776B

.pdata
Size: 5KB - Virtual size: 4KB

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