Static task
static1
Behavioral task
behavioral1
Sample
SubZeroFN_Free_Chair.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
SubZeroFN_Free_Chair.exe
Resource
win10v2004-20230703-en
General
-
Target
SubZeroFN_Free_Chair.exe
-
Size
686KB
-
MD5
4d600bdf77ad7c8073f919cb59d9dabc
-
SHA1
9cc939bd72d6efec4d286c16d4e1007177322300
-
SHA256
c599b7844d7ee27f883cd10adbba5f51a33b6bc3e3e345ff1f11db81ff0cd37f
-
SHA512
d48616af38d769593d74bee22bf9fb942d5f5255336b2acf4062d30745b39bb8c6359c1bd5cca992e72e7c97a8509d25679251fb2d6a642998d29d40a69b6a29
-
SSDEEP
12288:JdP5GNFILveDX2QqRykHi2jL7Oku+8cfh8nVgfG4Y6Y:FGNFDmQq7HimHW+dh8nVgfG4Yr
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource SubZeroFN_Free_Chair.exe
Files
-
SubZeroFN_Free_Chair.exe.exe windows x64
4df24dcd0cc706078173123c3566e3d2
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
GetConsoleWindow
SetConsoleTitleA
SetConsoleTextAttribute
OutputDebugStringW
CreateToolhelp32Snapshot
GetConsoleScreenBufferInfo
Process32Next
GetStdHandle
QueryPerformanceFrequency
QueryPerformanceCounter
GetLastError
InitializeCriticalSectionEx
DeleteCriticalSection
GetCurrentProcess
GetModuleHandleW
SetLastError
FormatMessageA
CreateFileA
FlushFileBuffers
Beep
CloseHandle
Sleep
GetCurrentProcessId
CreateThread
VirtualAlloc
VirtualFree
GetModuleHandleA
GetProcAddress
MultiByteToWideChar
WideCharToMultiByte
EnterCriticalSection
LeaveCriticalSection
SleepEx
GetSystemDirectoryA
FreeLibrary
LoadLibraryA
VerifyVersionInfoA
GetTickCount
MoveFileExA
WaitForSingleObjectEx
GetEnvironmentVariableA
GetFileType
ReadFile
PeekNamedPipe
WaitForMultipleObjects
GetFileSizeEx
InitializeCriticalSectionAndSpinCount
SetEvent
ResetEvent
GlobalFree
GlobalLock
GlobalUnlock
CreateEventW
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
IsDebuggerPresent
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
GlobalAlloc
user32
GetWindow
FindWindowA
SetWindowLongA
GetWindowLongA
GetWindowRect
GetForegroundWindow
UpdateWindow
GetSystemMetrics
mouse_event
GetAsyncKeyState
SetWindowPos
MoveWindow
ShowWindow
DestroyWindow
CreateWindowExA
UnregisterClassA
RegisterClassA
PostQuitMessage
DefWindowProcA
PeekMessageA
DispatchMessageA
TranslateMessage
LoadCursorA
ScreenToClient
ClientToScreen
GetCursorPos
OpenClipboard
CloseClipboard
SetClipboardData
GetClipboardData
EmptyClipboard
GetActiveWindow
GetKeyState
GetCapture
SetCapture
ReleaseCapture
GetClientRect
SetCursorPos
SetCursor
gdi32
GetStockObject
shell32
ShellExecuteA
imm32
ImmReleaseContext
ImmGetContext
ImmSetCompositionWindow
msvcp140
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ
?_Ipfx@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA_N_N@Z
??0?$basic_iostream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@@Z
??1?$basic_iostream@DU?$char_traits@D@std@@@std@@UEAA@XZ
?_Random_device@std@@YAIXZ
?imbue@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAXAEBVlocale@2@@Z
?sync@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ
?setbuf@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAPEAV12@PEAD_J@Z
?uflow@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ
?showmanyc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JXZ
?_Unlock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ
?_Lock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ
?cout@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
?cerr@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
?clog@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@P6AAEAV01@AEAV01@@Z@Z
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ
?widen@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBADD@Z
?fill@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBADXZ
?rdbuf@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBAPEAV?$basic_streambuf@DU?$char_traits@D@std@@@2@XZ
?tie@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBAPEAV?$basic_ostream@DU?$char_traits@D@std@@@2@XZ
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
??1?$basic_ios@DU?$char_traits@D@std@@@std@@UEAA@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
?_Pninc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAPEADXZ
?setp@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXPEAD00@Z
?setp@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXPEAD0@Z
?epptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?setg@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXPEAD00@Z
?gbump@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXH@Z
?egptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?pptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?gptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?eback@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z
?snextc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?sgetc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?sbumpc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
??1?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAA@XZ
??0?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAA@XZ
?iword@ios_base@std@@QEAAAEAJH@Z
?xalloc@ios_base@std@@SAHXZ
?width@ios_base@std@@QEAA_J_J@Z
?width@ios_base@std@@QEBA_JXZ
?flags@ios_base@std@@QEBAHXZ
?good@ios_base@std@@QEBA_NXZ
??Bios_base@std@@QEBA_NXZ
?_Throw_C_error@std@@YAXH@Z
_Mtx_unlock
_Mtx_lock
_Mtx_destroy_in_situ
_Mtx_init_in_situ
_Thrd_sleep
_Query_perf_frequency
_Query_perf_counter
_Xtime_get_ticks
?uncaught_exception@std@@YA_NXZ
?_Xout_of_range@std@@YAXPEBD@Z
?_Xbad_alloc@std@@YAXXZ
?_Xlength_error@std@@YAXPEBD@Z
??0?$basic_ios@DU?$char_traits@D@std@@@std@@IEAA@XZ
d3d9
Direct3DCreate9Ex
ntdll
ZwClose
VerSetConditionMask
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
ZwSetValueKey
ZwOpenKey
ZwQueryValueKey
ZwCreateKey
xinput1_4
ord2
normaliz
IdnToAscii
wldap32
ord45
ord143
ord301
ord217
ord46
ord200
ord60
ord30
ord211
ord50
ord79
ord35
ord33
ord32
ord27
ord26
ord22
ord41
crypt32
CertFreeCertificateContext
CertFindCertificateInStore
CertEnumCertificatesInStore
CryptStringToBinaryA
CertOpenStore
CertFreeCertificateChain
CertGetCertificateChain
CertFreeCertificateChainEngine
PFXImportCertStore
CryptDecodeObjectEx
CertAddCertificateContextToStore
CertFindExtension
CertGetNameStringA
CryptQueryObject
CertCreateCertificateChainEngine
CertCloseStore
ws2_32
htonl
accept
WSACleanup
WSAStartup
WSAIoctl
WSASetLastError
socket
setsockopt
ntohs
htons
getsockopt
getsockname
getpeername
connect
bind
WSAGetLastError
send
recv
closesocket
__WSAFDIsSet
select
listen
ntohl
gethostname
ioctlsocket
sendto
recvfrom
freeaddrinfo
getaddrinfo
vcruntime140
__std_exception_copy
_CxxThrowException
memmove
memcmp
strchr
memset
__std_exception_destroy
strrchr
__std_terminate
strstr
__current_exception_context
__C_specific_handler
__current_exception
memchr
memcpy
vcruntime140_1
__CxxFrameHandler4
api-ms-win-crt-string-l1-1-0
tolower
strpbrk
wcscpy_s
strcspn
strspn
isupper
_strdup
isprint
strncpy
strncmp
strcmp
api-ms-win-crt-stdio-l1-1-0
_fileno
fputc
_open
_close
_write
_read
__p__commode
_set_fmode
_lseeki64
__acrt_iob_func
_wfopen
fclose
fflush
fread
fseek
ftell
fwrite
__stdio_common_vfprintf
__stdio_common_vsprintf
__stdio_common_vsscanf
__stdio_common_vsprintf_s
_isatty
fgets
feof
fputs
fopen
api-ms-win-crt-heap-l1-1-0
free
malloc
realloc
calloc
_set_new_mode
_callnewh
api-ms-win-crt-utility-l1-1-0
qsort
rand
api-ms-win-crt-math-l1-1-0
floorf
sinf
sqrtf
__setusermatherr
pow
powf
ceilf
cosf
tanf
fmodf
fabs
atan
api-ms-win-crt-runtime-l1-1-0
_initialize_narrow_environment
_configure_narrow_argv
_initialize_onexit_table
_register_onexit_function
_crt_atexit
system
terminate
_getpid
_beginthreadex
exit
strerror
_errno
_register_thread_local_exe_atexit_callback
_c_exit
__p___argv
__p___argc
__sys_nerr
_invalid_parameter_noinfo_noreturn
_exit
_initterm_e
_initterm
_get_initial_narrow_environment
_set_app_type
_seh_filter_exe
_cexit
api-ms-win-crt-convert-l1-1-0
atof
strtoll
atoi
strtoul
strtol
api-ms-win-crt-filesystem-l1-1-0
remove
_access
_unlink
_fstat64
_stat64
api-ms-win-crt-time-l1-1-0
_time64
_gmtime64
api-ms-win-crt-locale-l1-1-0
_configthreadlocale
advapi32
CryptEncrypt
CryptAcquireContextA
CryptReleaseContext
CryptGetHashParam
CryptGenRandom
CryptCreateHash
CryptHashData
CryptDestroyHash
CryptDestroyKey
CryptImportKey
Sections
.text Size: 527KB - Virtual size: 527KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 119KB - Virtual size: 118KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 8KB - Virtual size: 14KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 22KB - Virtual size: 22KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 5KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ