rubyw[.]exe | Triage

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General

Target

rubyw.exe
Size

120KB
MD5

6d75d615297c8684169b192626f67fe3
SHA1

9d414ed31480edb234b08181a3aa80997ff2fc9e
SHA256

caa554eff52af0dc61922d5053ce5c01999ea67de67375602610073b07c0ba83
SHA512

ec256da048dca2d1dc1b5c1b6bea43bcdc06984274fc4873f2248924ed65e1302164b904d5459f4596ac8f41690e2730e095d9692d686ebea2d6444eec0512db
SSDEEP

1536:KR6+x6fcxQ+FvDz+b3078s/CRZYKtMxJ/xv2NvAU1Zha3N6dff:YA0xQMvDYw8s/n8he6dff

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
rubyw.exe

Files

rubyw.exe
.exe windows:4 windows x86 arch:x86

366376ef77f3310ec6cf089189c5c00b

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE

Imports

msvcrt-ruby230

Sleep@4
ruby_init
ruby_init_stack
ruby_options
ruby_run_node
ruby_sysinit

kernel32

DeleteCriticalSection
EnterCriticalSection
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetLastError
GetModuleHandleA
GetProcAddress
GetStartupInfoA
GetSystemTimeAsFileTime
GetTickCount
InitializeCriticalSection
LeaveCriticalSection
LoadLibraryW
QueryPerformanceCounter
SetUnhandledExceptionFilter
TerminateProcess
TlsGetValue
UnhandledExceptionFilter
VirtualProtect
VirtualQuery

msvcrt

__dllonexit
__getmainargs
__initenv
__lconv_init
__set_app_type
__setusermatherr
_acmdln
_amsg_exit
_cexit
_fmode
_initterm
_iob
_lock
_onexit
_unlock
abort
calloc
exit
fprintf
free
fwrite
malloc
memcpy
setlocale
signal
strlen
strncmp
vfprintf

Sections

.text
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 44B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 1024B - Virtual size: 664B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 1004B

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 52B

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

.rsrc
Size: 16KB - Virtual size: 15KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

/4
Size: 1024B - Virtual size: 760B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/19
Size: 40KB - Virtual size: 40KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/31
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/45
Size: 7KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/57
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/70
Size: 1024B - Virtual size: 763B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/81
Size: 6KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/92
Size: 512B - Virtual size: 424B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

366376ef77f3310ec6cf089189c5c00b

Headers

File Characteristics

Imports

msvcrt-ruby230

kernel32

msvcrt

Sections

.text Size: 6KB - Virtual size: 6KB

.data Size: 512B - Virtual size: 44B

.rdata Size: 1024B - Virtual size: 664B

.bss Size: - Virtual size: 1004B

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

.CRT Size: 512B - Virtual size: 52B

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

.rsrc Size: 16KB - Virtual size: 15KB

/4 Size: 1024B - Virtual size: 760B

/19 Size: 40KB - Virtual size: 40KB

/31 Size: 6KB - Virtual size: 6KB

/45 Size: 7KB - Virtual size: 7KB

/57 Size: 2KB - Virtual size: 1KB

/70 Size: 1024B - Virtual size: 763B

/81 Size: 6KB - Virtual size: 5KB

/92 Size: 512B - Virtual size: 424B

.text
Size: 6KB - Virtual size: 6KB

.data
Size: 512B - Virtual size: 44B

.rdata
Size: 1024B - Virtual size: 664B

.bss
Size: - Virtual size: 1004B

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

.CRT
Size: 512B - Virtual size: 52B

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

.rsrc
Size: 16KB - Virtual size: 15KB

/4
Size: 1024B - Virtual size: 760B

/19
Size: 40KB - Virtual size: 40KB

/31
Size: 6KB - Virtual size: 6KB

/45
Size: 7KB - Virtual size: 7KB

/57
Size: 2KB - Virtual size: 1KB

/70
Size: 1024B - Virtual size: 763B

/81
Size: 6KB - Virtual size: 5KB

/92
Size: 512B - Virtual size: 424B