asf[.]exe | Triage

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General

Target

asf.exe
Size

278KB
MD5

b1039cfc978539a4c310e8de5c61ca6c
SHA1

0ee9d3c87048a4cc82e715c09ba41bdaf41c9da5
SHA256

42172611c7bdc3184844a9dbf9681634d49a864c765ef2166629119515338891
SHA512

72a814969bb174e48f7969337a91ac8df6ca53ea2ab1a47ebd71e4f931d0774232cfc6fba7c893aed6778cfc8d188007e76956dbd2c3d5f6599969446a7a8366
SSDEEP

6144:BQqMtrz8jUH8GICkvdgXxt8/KRfBrzpMPnMc3KgcJQ:yqgreu8ohtHZBSPn4

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
asf.exe

Files

asf.exe
.exe windows:6 windows x64 arch:x64

9205f4817ce4185d8730470adba9b3a1

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

dwmapi

DwmExtendFrameIntoClientArea

kernel32

GlobalLock
GlobalUnlock
QueryPerformanceFrequency
QueryPerformanceCounter
DeviceIoControl
CreateFileW
GetModuleHandleA
CreateToolhelp32Snapshot
MultiByteToWideChar
Sleep
Process32NextW
Process32FirstW
CloseHandle
CreateThread
GetProcAddress
WideCharToMultiByte
lstrcmpiW
SetConsoleTitleW
GlobalAlloc
IsDebuggerPresent
TerminateProcess
GetCurrentProcessId
GetCurrentThreadId
GetCurrentProcess
GetSystemTimeAsFileTime
InitializeSListHead
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
GetModuleHandleW
CreateEventW
WaitForSingleObjectEx
ResetEvent
SetEvent
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
LeaveCriticalSection
EnterCriticalSection
GlobalFree
IsProcessorFeaturePresent

user32

GetWindowLongW
DefWindowProcW
GetWindow
DestroyWindow
SetWindowPos
GetSystemMetrics
SetClipboardData
UnregisterClassW
RegisterClassExW
ShowWindow
GetAsyncKeyState
DispatchMessageW
PeekMessageW
GetForegroundWindow
CreateWindowExA
SetLayeredWindowAttributes
TranslateMessage
LoadIconW
FindWindowW
SetWindowLongW
PostQuitMessage
FindWindowA
GetClipboardData
EmptyClipboard
CloseClipboard
LoadCursorW
OpenClipboard
GetCursorPos
SetCursorPos
ReleaseCapture
GetClientRect
UpdateWindow
SetCursor
GetKeyState
ScreenToClient
GetActiveWindow
GetCapture
ClientToScreen
SetCapture

imm32

ImmSetCompositionWindow
ImmGetContext
ImmReleaseContext

msvcp140

??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@_K@Z
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z
?uncaught_exception@std@@YA_NXZ
?cout@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
?_Xlength_error@std@@YAXPEBD@Z
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z

d3d9

Direct3DCreate9Ex

vcruntime140_1

__CxxFrameHandler4

vcruntime140

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

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

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

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

strncpy
isprint
strcmp

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

qsort

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

_callnewh
free
_set_new_mode
malloc

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

exit
__p___argc
__p___argv
_c_exit
_register_thread_local_exe_atexit_callback
_initterm_e
_initterm
system
terminate
_configure_narrow_argv
_get_initial_narrow_environment
_set_app_type
_initialize_narrow_environment
_exit
_seh_filter_exe
_cexit
_crt_atexit
_register_onexit_function
_initialize_onexit_table
_invalid_parameter_noinfo_noreturn

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

floorf
powf
sinf
sqrtf
cosf
fmodf
ceilf
__setusermatherr
atan2
asin
tanf

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

_configthreadlocale

Sections

.text
Size: 220KB - Virtual size: 220KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 42KB - Virtual size: 42KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 15KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 9KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 464B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 512B - Virtual size: 488B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 308B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

9205f4817ce4185d8730470adba9b3a1

Headers

DLL Characteristics

File Characteristics

Imports

dwmapi

kernel32

user32

imm32

msvcp140

d3d9

vcruntime140_1

vcruntime140

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

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

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

Sections

.text Size: 220KB - Virtual size: 220KB

.rdata Size: 42KB - Virtual size: 42KB

.data Size: 3KB - Virtual size: 15KB

.pdata Size: 9KB - Virtual size: 8KB

_RDATA Size: 512B - Virtual size: 464B

.rsrc Size: 512B - Virtual size: 488B

.reloc Size: 512B - Virtual size: 308B

.text
Size: 220KB - Virtual size: 220KB

.rdata
Size: 42KB - Virtual size: 42KB

.data
Size: 3KB - Virtual size: 15KB

.pdata
Size: 9KB - Virtual size: 8KB

_RDATA
Size: 512B - Virtual size: 464B

.rsrc
Size: 512B - Virtual size: 488B

.reloc
Size: 512B - Virtual size: 308B