jok4[.]exe | Triage

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General

Target

jok4.exe
Size

952KB
MD5

cf819d7b4054a7b103b1dd33edac1dac
SHA1

fb10938153108eaaeb35c4bca03cfb32f7ebfed3
SHA256

6a2fd0172688ca237f0a94d81235ebf713a1e7999e5508d9b90c1056ce38b3a6
SHA512

c215cf7cd267aabe463548abfee0e1ad119b754a255f296ceabaad4d769eb86317ce0338bd1cdbaf7c97b936768c67d1705b7f47e94d75dab2f9e7ab848f9f04
SSDEEP

24576:oPS3YlaLBTSqj1sI2r0nuVZMGB0tTyLbXuH:oPS3YlaLBTSu1sI2r0nuVZiyPu

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
jok4.exe

Files

jok4.exe
.exe windows:4 windows x64

077d170844c5be9f6bf48d6f5bda69de

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DEBUG_STRIPPED

Imports

kernel32

AddVectoredExceptionHandler
CloseHandle
CreateEventA
CreateSemaphoreA
DeleteCriticalSection
DuplicateHandle
EnterCriticalSection
FormatMessageA
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetHandleInformation
GetLastError
GetModuleHandleW
GetProcAddress
GetProcessAffinityMask
GetSystemTimeAsFileTime
GetThreadContext
GetThreadPriority
GetTickCount64
InitializeCriticalSection
IsDBCSLeadByteEx
IsDebuggerPresent
IsProcessorFeaturePresent
LeaveCriticalSection
LoadLibraryW
LocalFree
MultiByteToWideChar
OpenProcess
OutputDebugStringA
RaiseException
ReleaseSemaphore
RemoveVectoredExceptionHandler
ResetEvent
ResumeThread
RtlCaptureContext
RtlLookupFunctionEntry
RtlUnwindEx
RtlVirtualUnwind
SetEvent
SetLastError
SetProcessAffinityMask
SetThreadContext
SetThreadPriority
SetUnhandledExceptionFilter
Sleep
SuspendThread
TerminateProcess
TlsAlloc
TlsGetValue
TlsSetValue
TryEnterCriticalSection
VirtualProtect
VirtualQuery
WaitForMultipleObjects
WaitForSingleObject
WideCharToMultiByte

msvcrt

__C_specific_handler
___lc_codepage_func
___mb_cur_max_func
__getmainargs
__initenv
__iob_func
__set_app_type
__setusermatherr
_amsg_exit
_beginthreadex
_cexit
_commode
_endthreadex
_errno
_fdopen
_filelengthi64
_fileno
_fileno
_fmode
_fstat64
_initterm
_lseeki64
_onexit
_read
_setjmp
_strdup
_time64
_ultoa
_wfopen
_write
abort
calloc
exit
fclose
fflush
fgetpos
fopen
fprintf
fputc
fputs
fread
free
fsetpos
fwrite
getc
getenv
getwc
iswctype
localeconv
longjmp
malloc
memchr
memcmp
memcpy
memmove
memset
printf
putc
putwc
rand
realloc
setlocale
setvbuf
signal
srand
strchr
strcmp
strcoll
strerror
strftime
strlen
strncmp
strtoul
strxfrm
towlower
towupper
ungetwc
ungetc
vfprintf
wcscoll
wcsftime
wcslen
wcsxfrm

Sections

.text
Size: 746KB - Virtual size: 745KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 12KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 70KB - Virtual size: 69KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.pdata
Size: 46KB - Virtual size: 46KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.xdata
Size: 63KB - Virtual size: 62KB

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: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 104B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 16B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 6KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

077d170844c5be9f6bf48d6f5bda69de

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

msvcrt

Sections

.text Size: 746KB - Virtual size: 745KB

.data Size: 12KB - Virtual size: 12KB

.rdata Size: 70KB - Virtual size: 69KB

.pdata Size: 46KB - Virtual size: 46KB

.xdata Size: 63KB - Virtual size: 62KB

.bss Size: - Virtual size: 3KB

.idata Size: 5KB - Virtual size: 4KB

.CRT Size: 512B - Virtual size: 104B

.tls Size: 512B - Virtual size: 16B

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

.reloc Size: 6KB - Virtual size: 5KB

.text
Size: 746KB - Virtual size: 745KB

.data
Size: 12KB - Virtual size: 12KB

.rdata
Size: 70KB - Virtual size: 69KB

.pdata
Size: 46KB - Virtual size: 46KB

.xdata
Size: 63KB - Virtual size: 62KB

.bss
Size: - Virtual size: 3KB

.idata
Size: 5KB - Virtual size: 4KB

.CRT
Size: 512B - Virtual size: 104B

.tls
Size: 512B - Virtual size: 16B

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

.reloc
Size: 6KB - Virtual size: 5KB