AtBroker[.]exe

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General

Target

AtBroker.exe
Size

59KB
MD5

9bdc479e59b6983589576f1865f25247
SHA1

770904da1fad1b0a5fe7347bb2fe817e0f299ffd
SHA256

22b2a930d97c30bf53b7bc9838f8c4c938d7d0f806eae3601f9a01aeac803443
SHA512

736a1216b361d49426d7cfcffe97c50207948139bd98f2c4d5c174553c3bf49d4f752c7c7e704e1a54f8474b9ee69925634dafa7b7f670317dc3f6ede4f94f61
SSDEEP

768:3T+Kjgbmte3DLwhxr5Fo2cMfUuc0xpkh9hwTPGV5X62UbtGeKJaD+RIu62EMKaHs:3Tlxr5FoJ+dvO9hwTGV9GfDg7DHpmV

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
AtBroker.exe

Files

AtBroker.exe
.exe windows x86

f791708993f51197ff73758e81e9637c

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

advapi32

RegQueryValueExW
OpenServiceW
QueryServiceConfigW
EventUnregister
RegOpenKeyExW
CheckTokenMembership
UnregisterTraceGuids
RegisterTraceGuidsW
FreeSid
GetTraceEnableLevel
GetTraceEnableFlags
GetTraceLoggerHandle
EventSetInformation
TraceMessage
AllocateAndInitializeSid
OpenSCManagerW
EventRegister
CloseServiceHandle
EventWriteTransfer
RegCloseKey

kernel32

SizeofResource
ExpandEnvironmentStringsW
SetProcessShutdownParameters
LocalAlloc
GetCurrentThreadId
GetVersionExW
MultiByteToWideChar
Sleep
LockResource
CloseHandle
RaiseException
FindResourceExW
LoadResource
LocalFree
lstrcmpiW
OpenMutexW
GetCurrentProcess
IsProcessInJob
OpenJobObjectW
IsDebuggerPresent
DebugBreak
CreateMutexExW
GetProcAddress
OpenSemaphoreW
WaitForSingleObjectEx
InitOnceComplete
OutputDebugStringW
FormatMessageW
WaitForSingleObject
GetModuleHandleExW
ReleaseSemaphore
SetLastError
CreateSemaphoreExW
InitOnceBeginInitialize
GetModuleFileNameA
RegEnumValueW
RegDeleteTreeW
K32GetModuleBaseNameW
K32EnumProcessModules
ProcessIdToSessionId
K32EnumProcesses
RegLoadMUIStringW
DeleteFileW
GetFileAttributesW
SetUnhandledExceptionFilter
UnhandledExceptionFilter
DeleteProcThreadAttributeList
CreateProcessW
UpdateProcThreadAttribute
InitializeProcThreadAttributeList
OpenProcess
ReleaseMutex
RegCreateKeyExW
RegSetValueExW
RegEnumKeyExW
GetTickCount
GetSystemTimeAsFileTime
GetLastError
GetCurrentProcessId
QueryPerformanceCounter
GetModuleHandleW
HeapSize
HeapReAlloc
HeapFree
HeapAlloc
GetProcessHeap
HeapDestroy
InitializeCriticalSection
DeleteCriticalSection
EnterCriticalSection
LeaveCriticalSection
TerminateProcess

user32

GetThreadDesktop
SystemParametersInfoW
SendNotifyMessageW
SetDesktopColorTransform
GetWindowThreadProcessId
GetShellWindow
GetKeyState
SendInput
UnregisterClassA
GetUserObjectInformationW

msvcrt

_controlfp
?terminate@@YAXXZ
_except_handler4_common
_onexit
_ltow_s
_unlock
_lock
_initterm
__setusermatherr
__p__fmode
_cexit
_exit
exit
__set_app_type
__wgetmainargs
_amsg_exit
__p__commode
_XcptFilter
??_V@YAXPAX@Z
memmove_s
malloc
free
wcscpy_s
_wcsicmp
memcpy_s
_callnewh
??1type_info@@UAE@XZ
__dllonexit
__CxxFrameHandler3
_wtoi
wcsrchr
_vsnwprintf
wcsspn
wcscspn
_wcslwr_s
memset

ntdll

NtQueryWnfStateData
WinSqmAddToStream
WinSqmIsOptedIn

shell32

ShellExecuteW

shlwapi

ord460
PathFileExistsW

uxtheme

ord65

Sections

.text
Size: 47KB - Virtual size: 46KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 4KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

f791708993f51197ff73758e81e9637c

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

kernel32

user32

msvcrt

ntdll

shell32

shlwapi

uxtheme

Sections

.text Size: 47KB - Virtual size: 46KB

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

.idata Size: 4KB - Virtual size: 4KB

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

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

.text
Size: 47KB - Virtual size: 46KB

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

.idata
Size: 4KB - Virtual size: 4KB

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

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