AtBroker[.]exe

Sharing

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General

Target

AtBroker.exe
Size

91KB
MD5

97a712fe2bf5c6e602837d85716ca6a3
SHA1

fd140398eee554932972e03adbdd7486cef5af34
SHA256

6b188027410b2d735463d5cc1e615e3a3f0fcf4db971767c72f19456edcc639e
SHA512

766c26f83d78213568103019667177c4cc818da45909be235e7ceccb8df879004585b6f59063d2073e1f8a426b3b66a98b58771e02595b58f94933e6ccef0505
SSDEEP

1536:SexFJZwYXTQgGp0VpzdXkoG1qZcpDiC/niJL5ckGgOkl/wRoWj1q4Nqeg:SWJmFpkddXkoG8CpDcJD5hQq4qe

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
AtBroker.exe

Files

AtBroker.exe
.exe windows:10 windows x86

ad6697db3d380d03eacbb4be152a7c5a

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
GetTokenInformation
OpenProcessToken
ConvertSidToStringSidW

kernel32

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

user32

GetShellWindow
GetKeyState
GetWindowThreadProcessId
SetDesktopColorTransform
UnregisterClassA
SendNotifyMessageW
SendInput
SystemParametersInfoW
GetUserObjectInformationW
GetThreadDesktop

msvcrt

_wcslwr_s
_controlfp
?terminate@@YAXXZ
_ltow_s
_except_handler4_common
_onexit
__dllonexit
_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
wcschr
_callnewh
??1type_info@@UAE@XZ
memcmp
__CxxFrameHandler3
_vsnwprintf
_purecall
_wtoi
wcsrchr
wcsspn
wcscspn
memset

ntdll

WinSqmIsOptedIn
WinSqmAddToStream
NtUpdateWnfStateData
NtQueryWnfStateData

shell32

ShellExecuteW

shlwapi

ord460
PathFileExistsW

uxtheme

ord65

Sections

.text
Size: 77KB - Virtual size: 76KB

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: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.didat
Size: 512B - Virtual size: 8B

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: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

ad6697db3d380d03eacbb4be152a7c5a

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

kernel32

user32

msvcrt

ntdll

shell32

shlwapi

uxtheme

Sections

.text Size: 77KB - Virtual size: 76KB

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

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

.didat Size: 512B - Virtual size: 8B

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

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

.text
Size: 77KB - Virtual size: 76KB

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

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

.didat
Size: 512B - Virtual size: 8B

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

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