Static task
static1
Behavioral task
behavioral1
Sample
CrystalFREE-EXT_December.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
CrystalFREE-EXT_December.exe
Resource
win10v2004-20231130-en
General
-
Target
CrystalFREE-EXT_December.exe
-
Size
791KB
-
MD5
02ff96ac187146e7eb2a35a68e850b74
-
SHA1
2d70d40407abc65cbc200eea109e1bcd5f4138ed
-
SHA256
f2338d5a84e85b7e4ac3e6b6a73e7a735cd5d63da0ed1752379a146c71066a4b
-
SHA512
dc1f29d2ceb2008af11cbe753a4d543913d0f30914cb06dbf4df4c3f6cf572b4018993b9a2b2408f82af77be3778538d931ddfb716ca643a0074b47c9632a5be
-
SSDEEP
12288:u3HUwcHJGp3Pb+b2xL4NwfUccRGhdKZU8VGVHWYgeWYg955/155/pH0LanpSM4dF:u3gJGpSb4L4NwfUxG/y9VMhLanF4dKc
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource CrystalFREE-EXT_December.exe
Files
-
CrystalFREE-EXT_December.exe.exe windows:6 windows x64 arch:x64
963a734b8f6d750b1b89ba8425ffe6d4
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
GetCommandLineA
CreateToolhelp32Snapshot
Sleep
GetLastError
DeleteFileA
Process32Next
CloseHandle
GetStartupInfoA
ExitProcess
lstrcmpiA
OpenProcess
GetSystemTimeAsFileTime
GetCurrentThreadId
GetCurrentProcessId
IsDebuggerPresent
InitializeSListHead
SleepConditionVariableSRW
WakeAllConditionVariable
AcquireSRWLockExclusive
ReleaseSRWLockExclusive
IsProcessorFeaturePresent
TerminateProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
VirtualAlloc
GetCurrentProcess
VirtualFree
SetLastError
Process32First
QueryPerformanceCounter
FreeLibrary
GetProcAddress
QueryPerformanceFrequency
LoadLibraryA
GetModuleHandleA
GlobalUnlock
WideCharToMultiByte
GlobalLock
GlobalFree
GlobalAlloc
GetModuleHandleW
MultiByteToWideChar
user32
SetCursor
SetCursorPos
GetClientRect
SetClipboardData
GetWindowThreadProcessId
GetWindow
DispatchMessageA
GetWindowRect
DestroyWindow
SetWindowPos
GetSystemMetrics
ShowWindow
GetAsyncKeyState
SetWindowLongA
EnumWindows
DefWindowProcA
SetLayeredWindowAttributes
TranslateMessage
LoadIconA
PeekMessageA
GetDesktopWindow
RegisterClassExA
UpdateWindow
GetKeyState
LoadCursorA
GetForegroundWindow
ClientToScreen
GetCursorPos
OpenClipboard
ScreenToClient
CloseClipboard
EmptyClipboard
GetClipboardData
advapi32
SetTokenInformation
CreateProcessAsUserA
PrivilegeCheck
LookupPrivilegeValueA
GetTokenInformation
DuplicateTokenEx
SetThreadToken
OpenProcessToken
GetUserNameA
RevertToSelf
d3d9
Direct3DCreate9Ex
imm32
ImmSetCompositionWindow
ImmReleaseContext
ImmGetContext
ImmSetCandidateWindow
dwmapi
DwmExtendFrameIntoClientArea
msvcp140
?setbuf@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAPEAV12@PEAD_J@Z
?sync@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ
?imbue@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAXAEBVlocale@2@@Z
?_Decref@facet@locale@std@@UEAAPEAV_Facet_base@3@XZ
?xsputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEBD_J@Z
?xsgetn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEAD_J@Z
?uflow@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ
?underflow@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ
?showmanyc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JXZ
?pbackfail@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHH@Z
?overflow@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHH@Z
?_Unlock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ
?seekpos@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA?AV?$fpos@U_Mbstatet@@@2@V32@H@Z
?id@?$collate@D@std@@2V0locale@2@A
?set_new_handler@std@@YAP6AXXZP6AXXZ@Z
?_Incref@facet@locale@std@@UEAAXXZ
?_Xregex_error@std@@YAXW4error_type@regex_constants@1@@Z
?_Xbad_function_call@std@@YAXXZ
??1?$basic_istream@DU?$char_traits@D@std@@@std@@UEAA@XZ
?_Lock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ
?seekoff@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA?AV?$fpos@U_Mbstatet@@@2@_JHH@Z
??0?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
??_D?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ
??0?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
??0?$basic_ios@DU?$char_traits@D@std@@@std@@IEAA@XZ
??1?$basic_ios@DU?$char_traits@D@std@@@std@@UEAA@XZ
??1_Lockit@std@@QEAA@XZ
??0_Lockit@std@@QEAA@H@Z
?cout@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
?_Getgloballocale@locale@std@@CAPEAV_Locimp@12@XZ
?uncaught_exception@std@@YA_NXZ
?cin@std@@3V?$basic_istream@DU?$char_traits@D@std@@@1@A
?_Xout_of_range@std@@YAXPEBD@Z
?cerr@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
?id@?$ctype@D@std@@2V0locale@2@A
?_Xlength_error@std@@YAXPEBD@Z
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ
?_Ipfx@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA_N_N@Z
?sgetc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?snextc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
?rdbuf@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBAPEAV?$basic_streambuf@DU?$char_traits@D@std@@@2@XZ
?widen@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBADD@Z
?put@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@D@Z
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@P6AAEAV01@AEAV01@@Z@Z
?getloc@ios_base@std@@QEBA?AVlocale@2@XZ
?good@ios_base@std@@QEBA_NXZ
?_Getcat@?$ctype@D@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
??Bid@locale@std@@QEAA_KXZ
?_Xbad_alloc@std@@YAXXZ
?_Xinvalid_argument@std@@YAXPEBD@Z
?uncaught_exceptions@std@@YAHXZ
_Thrd_id
_Mtx_init_in_situ
_Mtx_destroy_in_situ
_Mtx_lock
_Mtx_unlock
?_Throw_C_error@std@@YAXH@Z
_Strcoll
_Strxfrm
??0_Locinfo@std@@QEAA@PEBD@Z
??1_Locinfo@std@@QEAA@XZ
?_Getcoll@_Locinfo@std@@QEBA?AU_Collvec@@XZ
?c_str@?$_Yarn@D@std@@QEBAPEBDXZ
??0facet@locale@std@@IEAA@_K@Z
??1facet@locale@std@@MEAA@XZ
?_Init@locale@std@@CAPEAV_Locimp@12@_N@Z
?tolower@?$ctype@D@std@@QEBADD@Z
?tolower@?$ctype@D@std@@QEBAPEBDPEADPEBD@Z
??Bios_base@std@@QEBA_NXZ
??0?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAA@XZ
??1?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAA@XZ
?sbumpc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?eback@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?gptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?pptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?egptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?gbump@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXH@Z
?setg@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXPEAD00@Z
?epptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?setp@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXPEAD0@Z
?setp@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXPEAD00@Z
?_Pninc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAPEADXZ
urlmon
URLDownloadToFileA
ws2_32
getpeername
getnameinfo
freeaddrinfo
getaddrinfo
WSASocketW
WSAGetLastError
connect
WSAStartup
socket
shutdown
setsockopt
send
select
ioctlsocket
WSACleanup
getsockname
__WSAFDIsSet
getsockopt
closesocket
ntohs
recv
bcrypt
BCryptOpenAlgorithmProvider
BCryptGenRandom
BCryptCloseAlgorithmProvider
vcruntime140_1
__CxxFrameHandler4
vcruntime140
__current_exception_context
__current_exception
memchr
_CxxThrowException
__std_type_info_name
__C_specific_handler
memmove
memcpy
memcmp
_purecall
__std_type_info_compare
__std_exception_copy
memset
__std_exception_destroy
__std_terminate
strstr
strchr
api-ms-win-crt-stdio-l1-1-0
fread
__stdio_common_vsscanf
__stdio_common_vsprintf_s
_set_fmode
_pclose
fgets
_popen
feof
_wfopen
fwrite
__p__commode
__stdio_common_vfprintf
fseek
fflush
__acrt_iob_func
ftell
__stdio_common_vsprintf
fclose
api-ms-win-crt-utility-l1-1-0
rand
_byteswap_ulong
qsort
api-ms-win-crt-string-l1-1-0
strncpy
strncmp
tolower
strcmp
_stricmp
strlen
isdigit
api-ms-win-crt-heap-l1-1-0
malloc
_callnewh
_aligned_free
_aligned_malloc
free
_set_new_mode
realloc
api-ms-win-crt-convert-l1-1-0
strtol
strtoull
strtoll
atof
strtoul
strtod
api-ms-win-crt-runtime-l1-1-0
_errno
_invalid_parameter_noinfo
_invalid_parameter_noinfo_noreturn
_register_thread_local_exe_atexit_callback
_c_exit
__p___argv
system
__p___argc
_exit
exit
_initterm_e
terminate
_configure_narrow_argv
_initialize_narrow_environment
_initialize_onexit_table
_register_onexit_function
_crt_atexit
_cexit
_initterm
_seh_filter_exe
_set_app_type
_get_initial_narrow_environment
api-ms-win-crt-multibyte-l1-1-0
_mbsicmp
api-ms-win-crt-math-l1-1-0
_dtest
_dsign
__setusermatherr
atan2
ceilf
sqrtf
tanf
asin
acosf
cosf
fmodf
powf
sinf
api-ms-win-crt-locale-l1-1-0
localeconv
_configthreadlocale
api-ms-win-crt-time-l1-1-0
_time64
Sections
.text Size: 581KB - Virtual size: 580KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 153KB - Virtual size: 153KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 23KB - Virtual size: 29KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 26KB - Virtual size: 26KB
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: 5KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ