chetoo[.]exe | Triage

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General

Target

chetoo.exe
Size

653KB
MD5

1936bdee81c2c946b879c584a5a32097
SHA1

16e1c5bbaf2759d9446c0751131adbea15d878c2
SHA256

97cc6942a54f7b7360eb9ed07a6b0cf15de0443bc44e4719e7f7cf0e352fd61d
SHA512

14656ccc042d0d0f67f042af9e4656baae77071dba651f6ba33d4d9baf2575fedae850b502634ff978cfcf4d1c09b7dfe01492d9074b038d7e4698c8e221e050
SSDEEP

12288:y/AB3xl0E/BjvR6C7dni2vhSMXliphqtcjWY4wfoZP:IGxlvNddni2vhSMXlIhkcj+w

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
chetoo.exe

Files

chetoo.exe
.exe windows x64

915dc8ebf418827d52a06e270c12a16e

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

FreeLibrary
QueryPerformanceCounter
CreateMutexA
ReleaseMutex
Sleep
OpenMutexA
Process32First
WriteProcessMemory
OpenProcess
CreateToolhelp32Snapshot
Process32Next
ReadProcessMemory
VirtualQueryEx
GetTickCount64
GlobalFree
CreateThread
GetCPInfoExW
GlobalAlloc
QueryPerformanceFrequency
GetCurrentThreadId
GetStartupInfoW
IsDebuggerPresent
IsProcessorFeaturePresent
TerminateProcess
GetCurrentProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
GetModuleHandleW
CreateEventW
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
MultiByteToWideChar
GetModuleFileNameW
GetProcAddress
LoadLibraryA
GetModuleHandleA
GlobalUnlock
WideCharToMultiByte
GetSystemTimeAsFileTime
lstrlenW
WaitNamedPipeW
GetCurrentProcessId
CloseHandle
GetLastError
CreateFileW
GlobalLock
PeekNamedPipe
WriteFile
InitializeSListHead
ReadFile

user32

MessageBoxA
SendMessageA
DispatchMessageA
DestroyWindow
CloseClipboard
DefWindowProcA
CreateWindowExA
TranslateMessage
LoadIconA
PeekMessageA
UnregisterClassA
ShowWindow
PostQuitMessage
RegisterClassExA
UpdateWindow
GetWindowRect
GetSystemMetrics
IsWindow
SetTimer
FindWindowExA
FindWindowA
GetKeyState
LoadCursorA
GetCursorPos
EmptyClipboard
GetClipboardData
SetClipboardData
IsIconic
OpenClipboard
SetLayeredWindowAttributes
EnumWindows
RegisterClassA
SetCursorPos
GetWindowInfo
ScreenToClient
GetCapture
ClientToScreen
TrackMouseEvent
SetWindowPos
GetForegroundWindow
GetWindowThreadProcessId
SetCapture
ReleaseCapture
SetCursor
GetClientRect

advapi32

RegCreateKeyExW
RegCloseKey
RegSetValueExW

msvcp140

??1facet@locale@std@@MEAA@XZ
??0facet@locale@std@@IEAA@_K@Z
?_Decref@facet@locale@std@@UEAAPEAV_Facet_base@3@XZ
?_Incref@facet@locale@std@@UEAAXXZ
?_Random_device@std@@YAIXZ
?_Gettrue@_Locinfo@std@@QEBAPEBDXZ
?_Getfalse@_Locinfo@std@@QEBAPEBDXZ
?_Getlconv@_Locinfo@std@@QEBAPEBUlconv@@XZ
??1_Locinfo@std@@QEAA@XZ
??0_Locinfo@std@@QEAA@PEBD@Z
??Bid@locale@std@@QEAA_KXZ
?id@?$numpunct@D@std@@2V0locale@2@A
?_Init@locale@std@@CAPEAV_Locimp@12@_N@Z
_Mtx_current_owns
_Mbrtowc
_Cnd_init_in_situ
?_Throw_Cpp_error@std@@YAXH@Z
?_Xbad_alloc@std@@YAXXZ
?_Throw_C_error@std@@YAXH@Z
_Cnd_timedwait
_Mtx_destroy_in_situ
_Mtx_lock
_Mtx_init_in_situ
_Cnd_do_broadcast_at_thread_exit
_Thrd_id
_Xtime_get_ticks
_Thrd_join
_Mtx_unlock
_Cnd_broadcast
?_Getcvt@_Locinfo@std@@QEBA?AU_Cvtvec@@XZ
?_Xout_of_range@std@@YAXPEBD@Z
?_Xbad_function_call@std@@YAXXZ
?_Xlength_error@std@@YAXPEBD@Z
??1_Lockit@std@@QEAA@XZ
??0_Lockit@std@@QEAA@H@Z
?_Getgloballocale@locale@std@@CAPEAV_Locimp@12@XZ

imm32

ImmSetCandidateWindow
ImmSetCompositionWindow
ImmReleaseContext
ImmGetContext
ImmAssociateContextEx

dwmapi

DwmExtendFrameIntoClientArea
DwmSetWindowAttribute

d3d9

Direct3DCreate9

vcruntime140_1

__CxxFrameHandler4

vcruntime140

memcmp
memcpy
memmove
memset
_CxxThrowException
__current_exception_context
__current_exception
__std_exception_copy
__std_exception_destroy
strstr
__std_terminate
memchr
__C_specific_handler

api-ms-win-crt-stdio-l1-1-0

__acrt_iob_func
__stdio_common_vsscanf
fread
__stdio_common_vsprintf
_wfopen
__p__commode
__stdio_common_vfprintf
fseek
fclose
fflush
__stdio_common_vswprintf
ftell
fwrite
_set_fmode

api-ms-win-crt-heap-l1-1-0

free
calloc
_callnewh
_set_new_mode
malloc

api-ms-win-crt-runtime-l1-1-0

_beginthreadex
terminate
_invalid_parameter_noinfo_noreturn
_register_thread_local_exe_atexit_callback
_c_exit
exit
_exit
_initterm_e
_initterm
_get_narrow_winmain_command_line
_set_app_type
_seh_filter_exe
_cexit
_crt_atexit
_register_onexit_function
_initialize_onexit_table
_initialize_narrow_environment
_configure_narrow_argv

api-ms-win-crt-math-l1-1-0

log2
_dclass
__setusermatherr
_fdclass
atan
fmodf
sin
acosf
log2f
sinf
fmod
sqrt
_ldsign
_ldclass
sqrtf
floor
cosf
cos
_fdsign
_dsign
ceilf
ceil

api-ms-win-crt-time-l1-1-0

_time64
clock

api-ms-win-crt-string-l1-1-0

strncmp
strcmp
strncpy
toupper

api-ms-win-crt-utility-l1-1-0

qsort
srand

api-ms-win-crt-convert-l1-1-0

atof

api-ms-win-crt-locale-l1-1-0

_configthreadlocale

d2d1

ord1

dwrite

DWriteCreateFactory

Sections

.text
Size: 347KB - Virtual size: 347KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 186KB - Virtual size: 185KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 79KB - Virtual size: 299KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 23KB - Virtual size: 23KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 328B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

915dc8ebf418827d52a06e270c12a16e

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

advapi32

msvcp140

imm32

dwmapi

d3d9

vcruntime140_1

vcruntime140

api-ms-win-crt-stdio-l1-1-0

api-ms-win-crt-heap-l1-1-0

api-ms-win-crt-runtime-l1-1-0

api-ms-win-crt-math-l1-1-0

api-ms-win-crt-time-l1-1-0

api-ms-win-crt-string-l1-1-0

api-ms-win-crt-utility-l1-1-0

api-ms-win-crt-convert-l1-1-0

api-ms-win-crt-locale-l1-1-0

d2d1

dwrite

Sections

.text Size: 347KB - Virtual size: 347KB

.rdata Size: 186KB - Virtual size: 185KB

.data Size: 79KB - Virtual size: 299KB

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

.rsrc Size: 23KB - Virtual size: 23KB

.reloc Size: 512B - Virtual size: 328B

.text
Size: 347KB - Virtual size: 347KB

.rdata
Size: 186KB - Virtual size: 185KB

.data
Size: 79KB - Virtual size: 299KB

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

.rsrc
Size: 23KB - Virtual size: 23KB

.reloc
Size: 512B - Virtual size: 328B