Static task
static1
Behavioral task
behavioral1
Sample
Skype.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
Skype.exe
Resource
win10v2004-20230915-en
General
-
Target
Skype.exe
-
Size
1.3MB
-
MD5
359050fb04759376e605eb89030fa375
-
SHA1
c2fc10e71077c699cde92e7c42df16916eaff8c6
-
SHA256
b011cac6d15154ab0e668642248021e26c429159eceee0f69e011f80f93a9598
-
SHA512
bff152d535b198843a5512958c6d941578a7072147115fdcab66cf8e054def989f8a4e406fecacdbc7a90982b318a1a2520b970d37160701a43dcda178e337bf
-
SSDEEP
24576:SK4gXyjLnv3IWwrhLpwS8X5D+CrIZOTn5VhGEJIr:DrXMLnv4Fpwj5DB3n3er
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Skype.exe
Files
-
Skype.exe.exe windows x64
c10e677af32fb091a096c82907a45d0c
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
d3d11
D3D11CreateDeviceAndSwapChain
d3dcompiler_47
D3DCompile
kernel32
LoadLibraryA
QueryPerformanceFrequency
GetProcAddress
FreeLibrary
QueryPerformanceCounter
CreateDirectoryW
Sleep
LoadLibraryW
SetConsoleOutputCP
GetTickCount
GlobalAlloc
GetFileSizeEx
ReadFile
CloseHandle
HeapAlloc
HeapFree
MultiByteToWideChar
MapViewOfFile
GlobalUnlock
CreateFileMappingA
ReleaseSRWLockExclusive
AcquireSRWLockExclusive
WakeAllConditionVariable
SleepConditionVariableSRW
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
WideCharToMultiByte
GlobalLock
UnmapViewOfFile
GlobalFree
CreateFileA
user32
DefWindowProcW
PostMessageW
GetWindowRect
DestroyWindow
keybd_event
PostMessageA
CreateWindowExW
SendMessageW
SetClipboardData
GetSystemMetrics
UnregisterClassW
RegisterClassExW
LoadIconW
ShowWindow
GetAsyncKeyState
DispatchMessageW
PeekMessageW
MoveWindow
GetClipboardData
EmptyClipboard
CloseClipboard
OpenClipboard
GetCursorPos
SetCursorPos
ReleaseCapture
IsWindowUnicode
GetClientRect
SetCursor
SetCapture
LoadCursorW
GetForegroundWindow
TrackMouseEvent
ClientToScreen
GetCapture
ScreenToClient
GetKeyState
UpdateWindow
GetDesktopWindow
PostQuitMessage
mouse_event
TranslateMessage
msvcp140
??Bid@locale@std@@QEAA_KXZ
?always_noconv@codecvt_base@std@@QEBA_NXZ
?_Getcat@?$ctype@D@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
??Bios_base@std@@QEBA_NXZ
??7ios_base@std@@QEBA_NXZ
?good@ios_base@std@@QEBA_NXZ
?_Xlength_error@std@@YAXPEBD@Z
??1_Lockit@std@@QEAA@XZ
??0_Lockit@std@@QEAA@H@Z
?uncaught_exceptions@std@@YAHXZ
?_Getgloballocale@locale@std@@CAPEAV_Locimp@12@XZ
?id@?$codecvt@DDU_Mbstatet@@@std@@2V0locale@2@A
?_Fiopen@std@@YAPEAU_iobuf@@PEBDHH@Z
?id@?$ctype@D@std@@2V0locale@2@A
?_Ipfx@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA_N_N@Z
?_Getcat@?$codecvt@DDU_Mbstatet@@@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
?snextc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z
?put@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@D@Z
?sbumpc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?sgetc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z
?widen@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBADD@Z
?unshift@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEAD1AEAPEAD@Z
??0?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAA@XZ
?getloc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEBA?AVlocale@2@XZ
?_Init@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXXZ
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ
?in@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
?out@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
?clear@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
??0?$basic_ios@DU?$char_traits@D@std@@@std@@IEAA@XZ
??0?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
??0?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
??1?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAA@XZ
?showmanyc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JXZ
?xsgetn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEAD_J@Z
?xsputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEBD_J@Z
??1?$basic_ios@DU?$char_traits@D@std@@@std@@UEAA@XZ
??1?$basic_ostream@DU?$char_traits@D@std@@@std@@UEAA@XZ
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@P6AAEAV01@AEAV01@@Z@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@_N@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@H@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@M@Z
??1?$basic_istream@DU?$char_traits@D@std@@@std@@UEAA@XZ
??5?$basic_istream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@AEA_N@Z
??5?$basic_istream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@AEAH@Z
??5?$basic_istream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@AEAM@Z
?getloc@ios_base@std@@QEBA?AVlocale@2@XZ
imm32
ImmSetCandidateWindow
ImmReleaseContext
ImmGetContext
ImmSetCompositionWindow
dwmapi
DwmExtendFrameIntoClientArea
vcruntime140_1
__CxxFrameHandler4
vcruntime140
memcmp
strrchr
longjmp
__std_terminate
memcpy
memmove
_CxxThrowException
memset
__intrinsic_setjmp
__C_specific_handler
__current_exception_context
__current_exception
__std_exception_destroy
strstr
memchr
__std_exception_copy
api-ms-win-crt-stdio-l1-1-0
__acrt_iob_func
ftell
__p__commode
fclose
_get_stream_buffer_pointers
_fseeki64
fsetpos
fflush
setvbuf
fgetpos
fgetc
fseek
fputc
__stdio_common_vfprintf
fwrite
_set_fmode
ungetc
__stdio_common_vsscanf
fread
__stdio_common_vsprintf
_wfopen
api-ms-win-crt-utility-l1-1-0
qsort
rand
api-ms-win-crt-string-l1-1-0
strncpy
strcpy_s
strncmp
strcmp
api-ms-win-crt-heap-l1-1-0
malloc
free
_callnewh
_set_new_mode
api-ms-win-crt-runtime-l1-1-0
exit
_exit
_invalid_parameter_noinfo_noreturn
_c_exit
_register_thread_local_exe_atexit_callback
_initterm
_get_narrow_winmain_command_line
terminate
_configure_narrow_argv
_initialize_narrow_environment
_set_app_type
_initialize_onexit_table
_seh_filter_exe
_cexit
_crt_atexit
_initterm_e
_register_onexit_function
_wassert
api-ms-win-crt-convert-l1-1-0
strtol
api-ms-win-crt-locale-l1-1-0
_configthreadlocale
setlocale
api-ms-win-crt-filesystem-l1-1-0
remove
_lock_file
rename
_unlock_file
api-ms-win-crt-math-l1-1-0
roundf
sqrtf
sinf
powf
fmodf
cosf
__setusermatherr
ceilf
acosf
Sections
.text Size: 763KB - Virtual size: 763KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 237KB - Virtual size: 237KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 280KB - Virtual size: 283KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 36KB - Virtual size: 36KB
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: 4KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ