RuntimeBroker[.]exe

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General

Target

RuntimeBroker.exe
Size

13.2MB
MD5

d1a029045f0b6913fdb335e6e9a28970
SHA1

6bef765115762dc2412e00e7927ac8937bf993e2
SHA256

6a7c343b58e98c70898d5d89ca9e627f1404f7907925c7905968c61068a52e78
SHA512

f1c33b98ae77c1cd5450c69844f303bc9d12bdeb7cbdd52b28ea1c70594a363217dac192bc67981fae4348c694a32a3e7aaad240c3ee3c191e1cdb2fd365857c
SSDEEP

196608:vYEpsbcUdUnYc0o5Gd7+Yvht4i4CIfUhWC4NmL180yU4WdLO4OvgeCigKcs90O8J:wLbPmYRQK7+80nFUVH8034mLO75guMr

Score

3^/10

pyinstaller

Malware Config

Signatures

Detects Pyinstaller 1 IoCs

pyinstaller

resource	yara_rule
sample	pyinstaller

Files

RuntimeBroker.exe
.exe windows x86

fa2936ff523bbe01bb11c81e10c9ad2d

Code Sign

33:00:00:02:cb:b7:75:39:fb:02:71:42:36:00:00:00:00:02:cb
Certificate

Issuer

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

12/05/2022, 20:45

Not After

11/05/2023, 20:45

Subject

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

61:0e:90:d2:00:00:00:00:00:03
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

08/07/2011, 20:59

Not After

08/07/2026, 21:09

Subject

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

45:30:9e:20:11:db:5c:89:1b:09:87:b7:e5:80:d9:00:7a:cc:a3:16:b5:a3:ce:03:dd:c9:e9:a7:d4:60:69:ed
Signer

Actual PE Digest

45:30:9e:20:11:db:5c:89:1b:09:87:b7:e5:80:d9:00:7a:cc:a3:16:b5:a3:ce:03:dd:c9:e9:a7:d4:60:69:ed

Digest Algorithm

sha256

PE Digest Matches

false

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_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE

Imports

user32

CreateWindowExW
MessageBoxW
MessageBoxA
SystemParametersInfoW
DestroyIcon
SetWindowLongW
GetWindowLongW
GetClientRect
InvalidateRect
ReleaseDC
GetDC
DrawTextW
GetDialogBaseUnits
EndDialog
DialogBoxIndirectParamW
MoveWindow
SendMessageW

comctl32

ord380

kernel32

IsValidCodePage
GetStringTypeW
GetFileAttributesExW
HeapReAlloc
FlushFileBuffers
GetCurrentDirectoryW
GetACP
GetOEMCP
GetModuleHandleW
MulDiv
GetLastError
SetDllDirectoryW
GetModuleFileNameW
GetProcAddress
GetCommandLineW
GetEnvironmentVariableW
GetCPInfo
ExpandEnvironmentStringsW
CreateDirectoryW
GetTempPathW
WaitForSingleObject
Sleep
GetExitCodeProcess
CreateProcessW
GetStartupInfoW
FreeLibrary
LoadLibraryExW
SetConsoleCtrlHandler
FindClose
FindFirstFileExW
CloseHandle
GetCurrentProcess
LocalFree
FormatMessageW
MultiByteToWideChar
WideCharToMultiByte
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetProcessHeap
GetTimeZoneInformation
HeapSize
WriteConsoleW
SetEndOfFile
SetEnvironmentVariableW
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
DecodePointer
RtlUnwind
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
EncodePointer
RaiseException
GetCommandLineA
CreateFileW
GetDriveTypeW
GetFileInformationByHandle
GetFileType
PeekNamedPipe
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
GetFullPathNameW
RemoveDirectoryW
FindNextFileW
SetStdHandle
DeleteFileW
ReadFile
GetStdHandle
WriteFile
ExitProcess
GetModuleHandleExW
HeapFree
GetConsoleMode
ReadConsoleW
SetFilePointerEx
GetConsoleOutputCP
GetFileSizeEx
HeapAlloc
CompareStringW
LCMapStringW

advapi32

OpenProcessToken
GetTokenInformation
ConvertStringSecurityDescriptorToSecurityDescriptorW
ConvertSidToStringSidW

gdi32

SelectObject
DeleteObject
CreateFontIndirectW

Sections

.text
Size: 148KB - Virtual size: 147KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 55KB - Virtual size: 55KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 62KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 62KB - Virtual size: 62KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Obfuscated.pyc

Sharing

General

Malware Config

Signatures

Files

fa2936ff523bbe01bb11c81e10c9ad2d

Code Sign

33:00:00:02:cb:b7:75:39:fb:02:71:42:36:00:00:00:00:02:cbCertificate

Extended Key Usages

61:0e:90:d2:00:00:00:00:00:03Certificate

Key Usages

45:30:9e:20:11:db:5c:89:1b:09:87:b7:e5:80:d9:00:7a:cc:a3:16:b5:a3:ce:03:dd:c9:e9:a7:d4:60:69:edSigner

Headers

DLL Characteristics

File Characteristics

Imports

user32

comctl32

kernel32

advapi32

gdi32

Sections

.text Size: 148KB - Virtual size: 147KB

.rdata Size: 55KB - Virtual size: 55KB

.data Size: 3KB - Virtual size: 62KB

.rsrc Size: 62KB - Virtual size: 62KB

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

33:00:00:02:cb:b7:75:39:fb:02:71:42:36:00:00:00:00:02:cb
Certificate

61:0e:90:d2:00:00:00:00:00:03
Certificate

45:30:9e:20:11:db:5c:89:1b:09:87:b7:e5:80:d9:00:7a:cc:a3:16:b5:a3:ce:03:dd:c9:e9:a7:d4:60:69:ed
Signer

.text
Size: 148KB - Virtual size: 147KB

.rdata
Size: 55KB - Virtual size: 55KB

.data
Size: 3KB - Virtual size: 62KB

.rsrc
Size: 62KB - Virtual size: 62KB

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