Static task
static1
Behavioral task
behavioral1
Sample
server.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
server.exe
Resource
win10v2004-20230220-en
General
-
Target
server.exe
-
Size
217KB
-
MD5
5d0f58fe6b960a54e49536a5bdc316bb
-
SHA1
323d25168b5bc0ec53e68f4225c7de664f2f917e
-
SHA256
6d9c5f9a68fa52db8946dec9a70e21cbfc4e803609325b41ee52c95db92a84d5
-
SHA512
dde02a685f988a3eab53072dafa904763cd92e6acca99a8b3eb0882b51932e441a0a58d8f088c2c051c1154d6ebbfc4def90d531e4834d589c38daeb70fbb756
-
SSDEEP
6144:GP9bm10fXuOPBZb9NlUObdL/Z7BQxb7sCz4K6V9Z:gb+O5Zb9PU8drvQxsCz4K6x
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource server.exe
Files
-
server.exe.exe windows x64
e81e579e0c94b1e24b47333387c48a4f
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
ws2_32
recv
freeaddrinfo
getnameinfo
socket
send
getsockname
getpeername
ntohs
WSAStartup
getaddrinfo
WSASocketW
listen
shutdown
select
closesocket
bind
accept
WSACleanup
setsockopt
msvcp140
_Query_perf_frequency
??1_Lockit@std@@QEAA@XZ
??0_Lockit@std@@QEAA@H@Z
?_Throw_Cpp_error@std@@YAXH@Z
?_Getgloballocale@locale@std@@CAPEAV_Locimp@12@XZ
?_Init@locale@std@@CAPEAV_Locimp@12@_N@Z
?uncaught_exception@std@@YA_NXZ
?_Xbad_alloc@std@@YAXXZ
?_Xinvalid_argument@std@@YAXPEBD@Z
?_Xout_of_range@std@@YAXPEBD@Z
?_Xregex_error@std@@YAXW4error_type@regex_constants@1@@Z
?_Xbad_function_call@std@@YAXXZ
?_Throw_C_error@std@@YAXH@Z
?id@?$codecvt@DDU_Mbstatet@@@std@@2V0locale@2@A
?_Fiopen@std@@YAPEAU_iobuf@@PEBDHH@Z
?id@?$ctype@D@std@@2V0locale@2@A
?_Random_device@std@@YAIXZ
?_Xlength_error@std@@YAXPEBD@Z
?id@?$collate@D@std@@2V0locale@2@A
_Mtx_destroy_in_situ
?__ExceptionPtrDestroy@@YAXPEAX@Z
_Mtx_lock
?__ExceptionPtrCurrentException@@YAXPEAX@Z
_Mtx_init_in_situ
_Strcoll
_Cnd_do_broadcast_at_thread_exit
_Thrd_sleep
_Cnd_wait
_Thrd_id
_Query_perf_counter
_Xtime_get_ticks
_Thrd_join
_Mtx_unlock
_Cnd_broadcast
_Cnd_destroy_in_situ
?_Getcat@?$codecvt@DDU_Mbstatet@@@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z
?getloc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEBA?AVlocale@2@XZ
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z
?pbase@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?unshift@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEAD1AEAPEAD@Z
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ
??0?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
?in@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
?out@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
_Strxfrm
?gptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?pptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?egptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?epptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?_Pninc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAPEADXZ
?_Init@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXXZ
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
??0?$basic_ios@DU?$char_traits@D@std@@@std@@IEAA@XZ
??0?$basic_iostream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@@Z
??0?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAA@XZ
??1?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAA@XZ
?_Lock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ
?_Unlock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ
?overflow@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHH@Z
?pbackfail@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHH@Z
?showmanyc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JXZ
?underflow@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ
?uflow@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ
?xsgetn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEAD_J@Z
?xsputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEBD_J@Z
?seekoff@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA?AV?$fpos@U_Mbstatet@@@2@_JHH@Z
?seekpos@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA?AV?$fpos@U_Mbstatet@@@2@V32@H@Z
?setbuf@?$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?$char_traits@D@std@@@std@@MEAAXAEBVlocale@2@@Z
??1?$basic_ios@DU?$char_traits@D@std@@@std@@UEAA@XZ
??0?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@_J@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@_K@Z
??1?$basic_istream@DU?$char_traits@D@std@@@std@@UEAA@XZ
?read@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@PEAD_J@Z
?seekg@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@V?$fpos@U_Mbstatet@@@2@@Z
?seekg@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@_JH@Z
?tellg@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA?AV?$fpos@U_Mbstatet@@@2@XZ
??1?$basic_iostream@DU?$char_traits@D@std@@@std@@UEAA@XZ
??_D?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ
_Cnd_init_in_situ
?tolower@?$ctype@D@std@@QEBAPEBDPEADPEBD@Z
?tolower@?$ctype@D@std@@QEBADD@Z
?always_noconv@codecvt_base@std@@QEBA_NXZ
??1facet@locale@std@@MEAA@XZ
??0facet@locale@std@@IEAA@_K@Z
?_Decref@facet@locale@std@@UEAAPEAV_Facet_base@3@XZ
?_Incref@facet@locale@std@@UEAAXXZ
??Bid@locale@std@@QEAA_KXZ
?_Getcoll@_Locinfo@std@@QEBA?AU_Collvec@@XZ
??1_Locinfo@std@@QEAA@XZ
??0_Locinfo@std@@QEAA@PEBD@Z
?__ExceptionPtrCreate@@YAXPEAX@Z
_Thrd_hardware_concurrency
_Cnd_signal
?__ExceptionPtrCopy@@YAXPEAXPEBX@Z
?eback@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?_Getcat@?$ctype@D@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
vcruntime140_1
__CxxFrameHandler4
vcruntime140
__current_exception_context
__C_specific_handler
memset
_CxxThrowException
__current_exception
__std_terminate
__std_exception_copy
__std_exception_destroy
memmove
memchr
memcmp
memcpy
strchr
api-ms-win-crt-stdio-l1-1-0
fflush
_get_stream_buffer_pointers
fclose
_fseeki64
fread
fgetc
__acrt_iob_func
ungetc
__stdio_common_vfprintf
_set_fmode
fputc
setvbuf
fgetpos
__stdio_common_vsprintf
fsetpos
fwrite
__p__commode
api-ms-win-crt-heap-l1-1-0
_callnewh
_set_new_mode
malloc
realloc
free
api-ms-win-crt-runtime-l1-1-0
__p___argc
_exit
_register_thread_local_exe_atexit_callback
_initterm
_get_initial_narrow_environment
_initterm_e
terminate
_set_app_type
_seh_filter_exe
_errno
_cexit
_crt_atexit
exit
_configure_narrow_argv
_register_onexit_function
_beginthreadex
_invalid_parameter_noinfo_noreturn
_initialize_onexit_table
_initialize_narrow_environment
_c_exit
__p___argv
api-ms-win-crt-string-l1-1-0
tolower
isdigit
_stricmp
api-ms-win-crt-convert-l1-1-0
strtoll
strtoull
strtoul
api-ms-win-crt-filesystem-l1-1-0
_lock_file
_access_s
_unlock_file
api-ms-win-crt-math-l1-1-0
__setusermatherr
api-ms-win-crt-locale-l1-1-0
_configthreadlocale
kernel32
CloseHandle
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionAndSpinCount
CreateEventW
InitializeSListHead
GetSystemTimeAsFileTime
GetCurrentThreadId
GetCurrentProcessId
QueryPerformanceCounter
IsDebuggerPresent
IsProcessorFeaturePresent
TerminateProcess
GetCurrentProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
WaitForSingleObjectEx
ResetEvent
GetProcAddress
SetEvent
DeleteCriticalSection
GetModuleHandleW
Sections
.text Size: 153KB - Virtual size: 153KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 44KB - Virtual size: 43KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 9KB - Virtual size: 11KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 7KB - Virtual size: 6KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 512B - Virtual size: 480B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ