AtBroker[.]exe

Sharing

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General

Target

AtBroker.exe
Size

28KB
MD5

3ca2bb895e204478c7a4c9baf70970ce
SHA1

1b376c177c5629c0e620431af1a9e8c16bf23d53
SHA256

de3196627bc810dd22f58dee65747baca25485ccd0cee2701055ece1058f1c6a
SHA512

85684d681e740f25ea30b0a50dbc15715a21570b4bbaa6f6b5ec8a1e1291a23b68e856fef652430bf673b1482b64a3fedcdd846d4c270caf4e32004826716276
SSDEEP

384:AXk5OzwZILYdhMBdMtazagzp+gHGC7Kf2GR7gjNetJqfNDu1TuoVqzuNakWm05bW:AYqLBBzZd+QGJfFgjNbfNa1TDwDsO

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
AtBroker.exe

Files

AtBroker.exe
.exe windows x86

4b8aa723ccfc5b2fba6ed3d8f3557de3

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

advapi32

GetTraceEnableFlags
GetTraceEnableLevel
GetTraceLoggerHandle
RegisterTraceGuidsW
UnregisterTraceGuids
TraceMessage
FreeSid
CheckTokenMembership
AllocateAndInitializeSid
RegQueryValueExW
RegCreateKeyExW
RegEnumKeyExW
RegSetValueExW
RegOpenKeyExW
RegCloseKey
RegLoadMUIStringW

msvcrt

wcsrchr
_ltow_s
_wtoi
_wcslwr_s
??_V@YAXPAX@Z
??_U@YAPAXI@Z
??2@YAPAXI@Z
memmove_s
memset
free
wcscspn
malloc
_onexit
_lock
__dllonexit
_unlock
_controlfp
_except_handler4_common
?terminate@@YAXXZ
__set_app_type
__p__fmode
__p__commode
__setusermatherr
_amsg_exit
_initterm
exit
_XcptFilter
_exit
_cexit
__wgetmainargs
??3@YAXPAX@Z
wcsspn
memcpy_s

ntdll

WinSqmIsOptedIn
WinSqmAddToStream

shell32

ShellExecuteW

kernel32

GetProcessHeap
HeapSize
HeapReAlloc
HeapFree
HeapAlloc
HeapDestroy
GetVersionExA
DeleteCriticalSection
InitializeCriticalSection
LeaveCriticalSection
EnterCriticalSection
InterlockedExchange
Sleep
InterlockedCompareExchange
SetUnhandledExceptionFilter
GetModuleHandleA
QueryPerformanceCounter
GetTickCount
GetCurrentThreadId
GetCurrentProcessId
GetSystemTimeAsFileTime
TerminateProcess
GetCurrentProcess
UnhandledExceptionFilter
RaiseException
lstrlenW
SizeofResource
LockResource
LoadResource
FindResourceW
FindResourceExW
MultiByteToWideChar
IsProcessInJob
GetLastError
ExpandEnvironmentStringsW
ProcessIdToSessionId
DeleteFileW
GetFileAttributesW

user32

SystemParametersInfoW
SendMessageTimeoutW
UnregisterClassA
SendInput
GetKeyState

Sections

.text
Size: 23KB - Virtual size: 22KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 1024B - Virtual size: 1KB

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: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

4b8aa723ccfc5b2fba6ed3d8f3557de3

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

msvcrt

ntdll

shell32

kernel32

user32

Sections

.text Size: 23KB - Virtual size: 22KB

.data Size: 1024B - Virtual size: 1KB

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

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

.text
Size: 23KB - Virtual size: 22KB

.data
Size: 1024B - Virtual size: 1KB

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

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