Static task
static1
Behavioral task
behavioral1
Sample
down.exe
Resource
win11-20240426-en
General
-
Target
down
-
Size
73KB
-
MD5
ca0e77336ac383365b9c6dc9aae7b0c9
-
SHA1
83979b4c3312e43a59e30b74665f056852743872
-
SHA256
8c235326746cd03642d826172ab5c3549e6b1768702bfee5f8b1b75a7b4f7478
-
SHA512
20cfae9ac5428e27ec3ba8856e8c67e15b7759d8396c4fbd126a9010a2f6963d0800c6f310ea43aca753e24a09ec492f98d8a5531f0f5fa05feb386bf028bb3e
-
SSDEEP
1536:rmuMiW6tc7KqPWuu/xAMQ257OxXkvwMTLCLCgzPrJ:MJ7xeuu/xk25OxXaZT+2gh
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource down
Files
-
down.exe windows:6 windows x64 arch:x64
971cd07548b0f0724e3c17895317c138
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
ReadFile
FindFirstFileA
VirtualAlloc
FindNextFileA
FindClose
CreateMutexA
GetModuleHandleA
Sleep
GetLastError
CreateFileA
CloseHandle
LocalFree
GetFileSize
FreeLibrary
GetConsoleWindow
FormatMessageA
RtlLookupFunctionEntry
InitializeSListHead
GetSystemTimeAsFileTime
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
IsDebuggerPresent
GetModuleHandleW
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
RtlCaptureContext
user32
ShowWindow
msvcp140
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z
?_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?$char_traits@D@std@@@std@@QEAAHXZ
?sgetc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z
?unshift@?$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
?_Xlength_error@std@@YAXPEBD@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
??4?$_Yarn@D@std@@QEAAAEAV01@PEBD@Z
??1?$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?$char_traits@D@std@@@std@@UEAA@XZ
??1?$basic_istream@DU?$char_traits@D@std@@@std@@UEAA@XZ
?getloc@ios_base@std@@QEBA?AVlocale@2@XZ
?good@ios_base@std@@QEBA_NXZ
?_Getcat@?$ctype@D@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
??1?$codecvt@_WDU_Mbstatet@@@std@@MEAA@XZ
??0?$codecvt@_WDU_Mbstatet@@@std@@QEAA@_K@Z
?in@?$codecvt@_WDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEA_W3AEAPEA_W@Z
?always_noconv@codecvt_base@std@@QEBA_NXZ
?_Addfac@_Locimp@locale@std@@AEAAXPEAVfacet@23@_K@Z
?_Decref@facet@locale@std@@UEAAPEAV_Facet_base@3@XZ
?_Incref@facet@locale@std@@UEAAXXZ
??Bid@locale@std@@QEAA_KXZ
?id@?$ctype@D@std@@2V0locale@2@A
?_Fiopen@std@@YAPEAU_iobuf@@PEBDHH@Z
?id@?$codecvt@DDU_Mbstatet@@@std@@2V0locale@2@A
?_Xout_of_range@std@@YAXPEBD@Z
?uncaught_exception@std@@YA_NXZ
?_Init@locale@std@@CAPEAV_Locimp@12@_N@Z
?_Getgloballocale@locale@std@@CAPEAV_Locimp@12@XZ
?_New_Locimp@_Locimp@locale@std@@CAPEAV123@AEBV123@@Z
??0_Lockit@std@@QEAA@H@Z
??1_Lockit@std@@QEAA@XZ
?id@?$codecvt@_WDU_Mbstatet@@@std@@2V0locale@2@A
shlwapi
PathFindFileNameA
vcruntime140_1
__CxxFrameHandler4
vcruntime140
memcmp
memcpy
memmove
memchr
__std_exception_destroy
__std_exception_copy
__std_terminate
__current_exception
__current_exception_context
__C_specific_handler
_CxxThrowException
memset
api-ms-win-crt-stdio-l1-1-0
fputc
_fseeki64
fread
fsetpos
ungetc
_set_fmode
setvbuf
fgetpos
fwrite
_get_stream_buffer_pointers
fflush
__p__commode
fgetc
fclose
api-ms-win-crt-heap-l1-1-0
free
_callnewh
malloc
_set_new_mode
api-ms-win-crt-utility-l1-1-0
srand
rand
api-ms-win-crt-filesystem-l1-1-0
_unlock_file
_lock_file
api-ms-win-crt-time-l1-1-0
_time64
api-ms-win-crt-runtime-l1-1-0
_set_app_type
_get_initial_narrow_environment
_initterm
_seh_filter_exe
_invalid_parameter_noinfo_noreturn
_exit
_cexit
__p___argc
__p___argv
_c_exit
_register_thread_local_exe_atexit_callback
_crt_atexit
exit
_register_onexit_function
_initialize_onexit_table
_initialize_narrow_environment
_configure_narrow_argv
terminate
_initterm_e
api-ms-win-crt-math-l1-1-0
__setusermatherr
api-ms-win-crt-locale-l1-1-0
_configthreadlocale
Sections
.text Size: 40KB - Virtual size: 40KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 17KB - Virtual size: 17KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 1KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 2KB - Virtual size: 2KB
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: 512B - Virtual size: 216B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ