breef[.]exe | Triage

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General

Target

breef.exe
Size

812KB
MD5

f6abcec3c98ecead9f7a2b4c01b5a68f
SHA1

d235a75ce98cd4068e3958b0c85cc38b7f4a1eb5
SHA256

8c734247ff014134cfdc0cdc002ed75cf6e9c30ba7758a66f6b6a13d3677a9c7
SHA512

0d839fe9d0e99314aeadd204ef1ef7bd0c1c3aa86b075129a464f7602fcd23bc2fe8c913571ff8e5850dd8b2e03991cbb0644817cf243d6e154e6d78e1a43015
SSDEEP

12288:r0waaki2FTTDTi8MUDJ7FSiXhsOpFK7DeoQKKnKw4:rXaaVcviCZEOXWi1K68

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
breef.exe

Files

breef.exe
.exe windows x64

842c1d39a22d44b972448d6697b23c40

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

kernel32

GetLastError
LoadLibraryA
CloseHandle
GetProcAddress
GetFileSize
GetModuleHandleA
MultiByteToWideChar
WideCharToMultiByte
CreateFileW
SetStdHandle
FreeLibrary
CreateMutexA
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineW
GetCommandLineA
GetOEMCP
GetACP
IsValidCodePage
FindNextFileW
FindFirstFileExW
FindClose
ReadConsoleW
ReadFile
GetConsoleMode
GetConsoleOutputCP
FlushFileBuffers
SetFilePointerEx
GetFileSizeEx
GetProcessHeap
GetStringTypeW
InitializeSRWLock
ReleaseSRWLockExclusive
AcquireSRWLockExclusive
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionEx
TryEnterCriticalSection
DeleteCriticalSection
GetCurrentThreadId
EncodePointer
DecodePointer
QueryPerformanceCounter
GetSystemTimeAsFileTime
GetModuleHandleW
LCMapStringEx
GetCPInfo
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
IsDebuggerPresent
GetStartupInfoW
GetCurrentProcessId
InitializeSListHead
RtlUnwindEx
RtlPcToFileHeader
RaiseException
SetLastError
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
LoadLibraryExW
GetModuleFileNameW
GetModuleHandleExW
ExitProcess
CreateThread
ExitThread
FreeLibraryAndExitThread
HeapAlloc
HeapSize
HeapValidate
GetSystemInfo
GetStdHandle
WriteFile
GetFileType
OutputDebugStringW
WriteConsoleW
LCMapStringW
GetLocaleInfoW
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
DeleteFileW
HeapFree
HeapReAlloc
HeapQueryInformation
RtlUnwind

user32

GetDC

gdi32

GetDIBits

gdiplus

GdipAlloc
GdipCreateBitmapFromHBITMAP
GdipDisposeImage
GdipFree
GdipSaveImageToFile
GdipCloneImage
GdiplusShutdown
GdiplusStartup

ws2_32

send
socket
connect
inet_addr
recv
htons
WSAStartup
closesocket
gethostname

Sections

.text
Size: 539KB - Virtual size: 539KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 232KB - Virtual size: 232KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 5KB - Virtual size: 22KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 28KB - Virtual size: 27KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 244B

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: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

842c1d39a22d44b972448d6697b23c40

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

gdiplus

ws2_32

Sections

.text Size: 539KB - Virtual size: 539KB

.rdata Size: 232KB - Virtual size: 232KB

.data Size: 5KB - Virtual size: 22KB

.pdata Size: 28KB - Virtual size: 27KB

_RDATA Size: 512B - Virtual size: 244B

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

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

.text
Size: 539KB - Virtual size: 539KB

.rdata
Size: 232KB - Virtual size: 232KB

.data
Size: 5KB - Virtual size: 22KB

.pdata
Size: 28KB - Virtual size: 27KB

_RDATA
Size: 512B - Virtual size: 244B

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

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