rcalc[.]exe | Triage

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General

Target

rcalc.exe
Size

467KB
MD5

31ff7078b28b1148c802e518dd539380
SHA1

51d1bb76155c63ec855aef73681513d0464b2c26
SHA256

cf0bafe62365f1fb2ad97335dead66de0c7265d269fa9250cb8dcb0cdee4452c
SHA512

a18b0cb8facd68f9cb0cb0aad8b1311a6d6e4182cc50cfed431d711048c80ef87a7513035ff6fbdc77cb74030f8bbc1e964bcc0666095ca50cb5ffdb7e539e33
SSDEEP

6144:jhAWS456EKdQS6ha1EWqg3WKbe8G+lVOAWCot/S9X7pW6XagO/VtLKW/zUemwbuq:jhiK679HOZax6smD0N7MNr/vW63ruq

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
rcalc.exe

Files

rcalc.exe
.exe windows:4 windows x86 arch:x86

a0ba8d0fbbdd3cc9810ba924d5b07c5d

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE

Imports

gdi32

GetStockObject

kernel32

DeleteCriticalSection
EnterCriticalSection
FreeLibrary
GetLastError
GetModuleHandleA
GetModuleHandleW
GetProcAddress
GetStartupInfoA
InitializeCriticalSection
IsDBCSLeadByteEx
LeaveCriticalSection
LoadLibraryA
MultiByteToWideChar
SetUnhandledExceptionFilter
Sleep
TlsGetValue
VirtualProtect
VirtualQuery
WideCharToMultiByte

msvcrt

__getmainargs
__initenv
__lconv_init
__mb_cur_max
__p__acmdln
__p__commode
__p__fmode
__set_app_type
__setusermatherr
_amsg_exit
_cexit
_errno
_initterm
_iob
_onexit
abort
atoi
calloc
exit
fprintf
fputc
free
fwrite
localeconv
malloc
memcpy
setlocale
signal
strchr
strerror
strlen
strncmp
vfprintf
wcslen

user32

CreateWindowExA
DefWindowProcA
DispatchMessageA
GetMessageA
LoadCursorA
LoadIconA
PostQuitMessage
RegisterClassExA
SendMessageA
SetWindowTextA
ShowWindow
TranslateMessage

Sections

.text
Size: 30KB - Virtual size: 29KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 92B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 3KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

/4
Size: 1024B - Virtual size: 752B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 2KB

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: 8B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/14
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/29
Size: 294KB - Virtual size: 294KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/41
Size: 14KB - Virtual size: 14KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/55
Size: 31KB - Virtual size: 31KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/67
Size: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/80
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/91
Size: 35KB - Virtual size: 35KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/102
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

a0ba8d0fbbdd3cc9810ba924d5b07c5d

Headers

DLL Characteristics

File Characteristics

Imports

gdi32

kernel32

msvcrt

user32

Sections

.text Size: 30KB - Virtual size: 29KB

.data Size: 512B - Virtual size: 92B

.rdata Size: 3KB - Virtual size: 2KB

/4 Size: 1024B - Virtual size: 752B

.bss Size: - Virtual size: 2KB

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

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

.tls Size: 512B - Virtual size: 8B

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

/14 Size: 1KB - Virtual size: 1KB

/29 Size: 294KB - Virtual size: 294KB

/41 Size: 14KB - Virtual size: 14KB

/55 Size: 31KB - Virtual size: 31KB

/67 Size: 5KB - Virtual size: 4KB

/80 Size: 2KB - Virtual size: 1KB

/91 Size: 35KB - Virtual size: 35KB

/102 Size: 2KB - Virtual size: 1KB

.text
Size: 30KB - Virtual size: 29KB

.data
Size: 512B - Virtual size: 92B

.rdata
Size: 3KB - Virtual size: 2KB

/4
Size: 1024B - Virtual size: 752B

.bss
Size: - Virtual size: 2KB

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

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

.tls
Size: 512B - Virtual size: 8B

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

/14
Size: 1KB - Virtual size: 1KB

/29
Size: 294KB - Virtual size: 294KB

/41
Size: 14KB - Virtual size: 14KB

/55
Size: 31KB - Virtual size: 31KB

/67
Size: 5KB - Virtual size: 4KB

/80
Size: 2KB - Virtual size: 1KB

/91
Size: 35KB - Virtual size: 35KB

/102
Size: 2KB - Virtual size: 1KB