mbr[.]exe | Triage

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General

Target

mbr.exe
Size

1.3MB
MD5

2f25bd080bf3eadbc56214af19f6fa1c
SHA1

b7045ed3b7c3195a1a0d48ca6734ebd025de018a
SHA256

ac4a06915224ec96e29a26b51d405c1f9b9bf3363fe366fc3e66e955e453770d
SHA512

fe5251e9f8a83fe3c97ddda2b86c4f759eaba3208b8ffe73961756bc355c97908a2a114e868c4c1981a35884b830ec95fc33689399436385fec483d6b0ef9079
SSDEEP

24576:HT3LlvRiQNGYXCI+b1w30WgvZef6YhuQ5O3h3JMtbu:PXNGDIu8NyMtbu

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
mbr.exe

Files

mbr.exe
.exe windows:4 windows x86 arch:x86

0341b2251534bec6e436b281a0639ffe

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE

Imports

kernel32

AddAtomA
CloseHandle
CreateEventA
CreateFileA
CreateMutexA
CreateSemaphoreA
DeleteCriticalSection
DuplicateHandle
EnterCriticalSection
FindAtomA
GetAtomNameA
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetHandleInformation
GetLastError
GetModuleHandleW
GetProcAddress
GetProcessAffinityMask
GetStartupInfoA
GetSystemTimeAsFileTime
GetThreadContext
GetThreadPriority
GetTickCount
InitializeCriticalSection
IsDBCSLeadByteEx
LeaveCriticalSection
MultiByteToWideChar
QueryPerformanceCounter
ReleaseMutex
ReleaseSemaphore
ResetEvent
ResumeThread
SetCriticalSectionSpinCount
SetEvent
SetLastError
SetProcessAffinityMask
SetThreadContext
SetThreadPriority
SetUnhandledExceptionFilter
Sleep
SuspendThread
TerminateProcess
TlsAlloc
TlsGetValue
TlsSetValue
TryEnterCriticalSection
UnhandledExceptionFilter
VirtualProtect
VirtualQuery
WaitForMultipleObjects
WaitForSingleObject
WideCharToMultiByte
WriteFile

msvcrt

__dllonexit
__doserrno
__getmainargs
__initenv
__lconv_init
__mb_cur_max
__pioinfo
__set_app_type
__setusermatherr
_acmdln
_amsg_exit
_beginthreadex
_cexit
_endthreadex
_errno
_fdopen
_filelengthi64
_fileno
_fileno
_fmode
_fstat64
_ftime
_initterm
_iob
_lock
_lseeki64
_onexit
_read
_setjmp3
_strnicmp
_unlock
_write
_write
abort
atoi
calloc
exit
fclose
fflush
fgetpos
fopen
fprintf
fputc
fputs
fread
free
fsetpos
fwrite
getc
getenv
getwc
isspace
iswctype
localeconv
longjmp
malloc
memchr
memcmp
memmove
printf
putc
putwc
realloc
setlocale
setvbuf
signal
sprintf
strchr
strcmp
strcoll
strerror
strftime
strncmp
strxfrm
towlower
towupper
ungetc
ungetwc
vfprintf
wcscoll
wcsftime
wcslen
wcsxfrm

ntdll

memcpy
memset
strlen

Sections

.text
Size: 512KB - Virtual size: 511KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 25KB - Virtual size: 25KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 33KB - Virtual size: 33KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 3KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 56B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 32B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

/4
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/19
Size: 116KB - Virtual size: 116KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/31
Size: 19KB - Virtual size: 19KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/45
Size: 25KB - Virtual size: 24KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/57
Size: 9KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/70
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/81
Size: 72KB - Virtual size: 72KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/92
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

0341b2251534bec6e436b281a0639ffe

Headers

File Characteristics

Imports

kernel32

msvcrt

ntdll

Sections

.text Size: 512KB - Virtual size: 511KB

.data Size: 25KB - Virtual size: 25KB

.rdata Size: 33KB - Virtual size: 33KB

.bss Size: - Virtual size: 3KB

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

.CRT Size: 512B - Virtual size: 56B

.tls Size: 512B - Virtual size: 32B

/4 Size: 2KB - Virtual size: 1KB

/19 Size: 116KB - Virtual size: 116KB

/31 Size: 19KB - Virtual size: 19KB

/45 Size: 25KB - Virtual size: 24KB

/57 Size: 9KB - Virtual size: 9KB

/70 Size: 1KB - Virtual size: 1KB

/81 Size: 72KB - Virtual size: 72KB

/92 Size: 3KB - Virtual size: 3KB

.text
Size: 512KB - Virtual size: 511KB

.data
Size: 25KB - Virtual size: 25KB

.rdata
Size: 33KB - Virtual size: 33KB

.bss
Size: - Virtual size: 3KB

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

.CRT
Size: 512B - Virtual size: 56B

.tls
Size: 512B - Virtual size: 32B

/4
Size: 2KB - Virtual size: 1KB

/19
Size: 116KB - Virtual size: 116KB

/31
Size: 19KB - Virtual size: 19KB

/45
Size: 25KB - Virtual size: 24KB

/57
Size: 9KB - Virtual size: 9KB

/70
Size: 1KB - Virtual size: 1KB

/81
Size: 72KB - Virtual size: 72KB

/92
Size: 3KB - Virtual size: 3KB