C:\Users\IlIlIIIIlIIllllIIIlI\Documents\yuk\output\build\yuki.pdb
Static task
static1
Behavioral task
behavioral1
Sample
yuki loader.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
yuki loader.exe
Resource
win10v2004-20240419-en
General
-
Target
yuki loader.exe
-
Size
1.5MB
-
MD5
9087d8f6f94bc7d58346a1c4747ce66f
-
SHA1
7e7497353c53d12deafce24e6f21fe18831ef317
-
SHA256
f9371d03ff667bd8dd66571eb7b1b7ccc98f2d25beead9beaece86c5676eaf2e
-
SHA512
7799dcc7cbbe8724306c7a8fa5d4616e99a5cd31ae4d43c395813dde15166a51653e7d5e276acb058ed582d98ad3a1fdd1b6626dcaae06db1bce60511773c9bd
-
SSDEEP
24576:Z2dvJJzl/pZvyzmHylGks0XX68orsFKcmCCMJZD3OSKtOi82NKrTP:gdvJJRRZvyzmHyCQ6p6n7D3OJOi8
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource yuki loader.exe
Files
-
yuki loader.exe.exe windows:6 windows x64 arch:x64
0b51e8f00faae0d7da8fb2603f26215f
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
PDB Paths
Imports
kernel32
PeekNamedPipe
WaitForMultipleObjects
GetFileSizeEx
LoadLibraryExA
OutputDebugStringW
InitializeSListHead
GetSystemTimeAsFileTime
GetCurrentThreadId
IsDebuggerPresent
IsProcessorFeaturePresent
TerminateProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
SleepConditionVariableSRW
WakeAllConditionVariable
AcquireSRWLockExclusive
ReleaseSRWLockExclusive
GetFileInformationByHandleEx
AreFileApisANSI
GetTempPathW
SetFileInformationByHandle
GetFullPathNameW
GetFileAttributesExW
GetFileAttributesW
FindNextFileW
FindFirstFileExW
FindFirstFileW
FindClose
CreateDirectoryW
GetLocaleInfoEx
GetFileType
VerifyVersionInfoA
GetSystemDirectoryA
SleepEx
LeaveCriticalSection
EnterCriticalSection
LocalFree
QueryFullProcessImageNameW
GetModuleHandleW
UnmapViewOfFile
MapViewOfFile
CreateFileMappingW
VirtualProtect
CreateThread
DeleteCriticalSection
InitializeCriticalSectionEx
GetProcessHeap
HeapSize
HeapFree
HeapReAlloc
HeapAlloc
HeapDestroy
QueryPerformanceCounter
VerSetConditionMask
QueryPerformanceFrequency
GetLocaleInfoA
GlobalUnlock
WideCharToMultiByte
GlobalLock
GlobalFree
GlobalAlloc
MultiByteToWideChar
lstrcmpiA
GetConsoleWindow
Process32Next
CreateFileA
CreateToolhelp32Snapshot
CreateFileW
Process32First
GetCurrentProcess
SetLastError
GetLastError
GetProcAddress
FreeLibrary
FormatMessageA
ReadFile
GetStdHandle
GetEnvironmentVariableA
WaitForSingleObjectEx
GetTickCount
SetConsoleTitleA
Sleep
VirtualFree
DeviceIoControl
MoveFileExA
VirtualAlloc
GetModuleHandleA
GetCurrentProcessId
LoadLibraryA
CloseHandle
GetModuleFileNameA
user32
MessageBoxA
DispatchMessageA
GetWindowRect
DestroyWindow
GetSystemMetrics
SetWindowLongA
SetWindowDisplayAffinity
GetMonitorInfoA
MoveWindow
DefWindowProcA
CreateWindowExA
SetLayeredWindowAttributes
TranslateMessage
LoadIconA
PeekMessageA
UnregisterClassA
PostQuitMessage
RegisterClassExA
UpdateWindow
GetKeyState
GetMessageExtraInfo
LoadCursorA
MonitorFromWindow
GetCapture
ClientToScreen
TrackMouseEvent
GetKeyboardLayout
SetCapture
SetCursor
GetClientRect
SetProcessDPIAware
IsWindowUnicode
ReleaseCapture
SetCursorPos
OpenClipboard
CloseClipboard
EmptyClipboard
GetClipboardData
SetClipboardData
ShowWindow
ScreenToClient
GetAsyncKeyState
GetForegroundWindow
GetCursorPos
SendInput
FindWindowA
gdi32
CreateSolidBrush
advapi32
CryptAcquireContextA
RegOpenKeyExA
RegQueryValueExA
RegCloseKey
OpenProcessToken
RegSetValueExA
RegDeleteKeyA
RegOpenKeyA
AdjustTokenPrivileges
LookupPrivilegeValueW
RegCreateKeyA
AddAccessAllowedAce
GetLengthSid
GetTokenInformation
InitializeAcl
IsValidSid
SetSecurityInfo
CopySid
ConvertSidToStringSidA
CryptGetHashParam
CryptEncrypt
CryptImportKey
CryptDestroyKey
CryptDestroyHash
CryptHashData
CryptCreateHash
CryptGenRandom
CryptReleaseContext
shell32
ShellExecuteA
SHGetFolderPathW
msvcp140
??0?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAA@XZ
?getloc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEBA?AVlocale@2@XZ
?snextc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ
?put@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@D@Z
?write@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@PEBD_J@Z
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ
?unshift@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEAD1AEAPEAD@Z
?_Init@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXXZ
??0?$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?$char_traits@D@std@@@1@_N@Z
?_Ipfx@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA_N_N@Z
?in@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
?out@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
?sgetc@?$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?$char_traits@D@std@@@std@@IEBAPEADXZ
?epptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
??1?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAA@XZ
?sbumpc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?showmanyc@?$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?$char_traits@D@std@@@std@@UEAA@XZ
?clear@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
??1?$basic_ostream@DU?$char_traits@D@std@@@std@@UEAA@XZ
??1?$basic_istream@DU?$char_traits@D@std@@@std@@UEAA@XZ
?get@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAAHXZ
?getloc@ios_base@std@@QEBA?AVlocale@2@XZ
?_Getcat@?$ctype@D@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
?always_noconv@codecvt_base@std@@QEBA_NXZ
??Bid@locale@std@@QEAA_KXZ
?_Throw_Cpp_error@std@@YAXH@Z
_Cnd_do_broadcast_at_thread_exit
_Thrd_id
_Thrd_join
_Query_perf_frequency
_Query_perf_counter
_Thrd_detach
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@M@Z
?_Fiopen@std@@YAPEAU_iobuf@@PEB_WHH@Z
?widen@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBADD@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@P6AAEAV01@AEAV01@@Z@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@H@Z
?setprecision@std@@YA?AU?$_Smanip@_J@1@_J@Z
?pbase@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
??0?$basic_iostream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@@Z
?_Lock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ
?_Unlock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ
?uflow@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ
?setbuf@?$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?$char_traits@D@std@@@std@@MEAAXAEBVlocale@2@@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@P6AAEAVios_base@1@AEAV21@@Z@Z
??1?$basic_iostream@DU?$char_traits@D@std@@@std@@UEAA@XZ
?setf@ios_base@std@@QEAAHHH@Z
_Strxfrm
?_Init@locale@std@@CAPEAV_Locimp@12@_N@Z
?_Xinvalid_argument@std@@YAXPEBD@Z
?_Xregex_error@std@@YAXW4error_type@regex_constants@1@@Z
?id@?$collate@D@std@@2V0locale@2@A
_Strcoll
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@@Z
?tolower@?$ctype@D@std@@QEBAPEBDPEADPEBD@Z
?tolower@?$ctype@D@std@@QEBADD@Z
??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
?_Getcoll@_Locinfo@std@@QEBA?AU_Collvec@@XZ
??1_Locinfo@std@@QEAA@XZ
??0_Locinfo@std@@QEAA@PEBD@Z
_Xtime_get_ticks
?fill@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAADD@Z
?setw@std@@YA?AU?$_Smanip@_J@1@_J@Z
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z
?_Getcat@?$codecvt@DDU_Mbstatet@@@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
?_Syserror_map@std@@YAPEBDH@Z
?id@?$ctype@D@std@@2V0locale@2@A
?_Fiopen@std@@YAPEAU_iobuf@@PEBDHH@Z
?id@?$codecvt@DDU_Mbstatet@@@std@@2V0locale@2@A
?_Xbad_function_call@std@@YAXXZ
?_Winerror_map@std@@YAHH@Z
?cin@std@@3V?$basic_istream@DU?$char_traits@D@std@@@1@A
?_Xbad_alloc@std@@YAXXZ
?_Xout_of_range@std@@YAXPEBD@Z
?_Xlength_error@std@@YAXPEBD@Z
?_Getgloballocale@locale@std@@CAPEAV_Locimp@12@XZ
?cout@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
?uncaught_exceptions@std@@YAHXZ
??0_Lockit@std@@QEAA@H@Z
??1_Lockit@std@@QEAA@XZ
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z
ntdll
RtlInitAnsiString
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlInitUnicodeString
RtlCaptureContext
RtlAnsiStringToUnicodeString
NtQuerySystemInformation
dbghelp
ImageRvaToVa
ImageNtHeader
ImageDirectoryEntryToData
d3d11
D3D11CreateDeviceAndSwapChain
imm32
ImmSetCompositionWindow
ImmReleaseContext
ImmGetContext
ImmSetCandidateWindow
d3dcompiler_43
D3DCompile
dwmapi
DwmExtendFrameIntoClientArea
rpcrt4
UuidToStringA
RpcStringFreeA
UuidCreate
psapi
GetModuleInformation
userenv
UnloadUserProfile
vcruntime140_1
__CxxFrameHandler4
vcruntime140
__intrinsic_setjmp
__std_exception_destroy
__std_exception_copy
_purecall
__std_terminate
strstr
strchr
longjmp
strrchr
__C_specific_handler
_CxxThrowException
memchr
memcmp
memcpy
memmove
memset
__current_exception
__current_exception_context
api-ms-win-crt-heap-l1-1-0
malloc
calloc
free
_callnewh
_set_new_mode
realloc
api-ms-win-crt-math-l1-1-0
ceil
ceilf
cos
ldexp
__setusermatherr
cosf
exp
sin
asin
floor
llround
sinf
acosf
sqrt
atan2
frexp
_dclass
acos
sqrtf
log10
pow
tan
log
roundf
fmodf
fmod
_dsign
api-ms-win-crt-string-l1-1-0
strcoll
islower
isblank
iscntrl
isalpha
tolower
isupper
isgraph
isdigit
strspn
strcmp
strcspn
isxdigit
_strdup
isalnum
_stricmp
strpbrk
toupper
strncmp
strncpy
isspace
ispunct
api-ms-win-crt-runtime-l1-1-0
__sys_nerr
system
_invalid_parameter_noinfo
exit
terminate
_beginthreadex
_resetstkoflw
_getpid
_invalid_parameter_noinfo_noreturn
_configure_narrow_argv
_initialize_narrow_environment
_register_thread_local_exe_atexit_callback
_c_exit
__p___argv
abort
__p___argc
_initialize_onexit_table
_exit
_initterm_e
_initterm
_get_initial_narrow_environment
_errno
strerror
_set_app_type
_seh_filter_exe
_cexit
_crt_atexit
_register_onexit_function
api-ms-win-crt-stdio-l1-1-0
freopen
ferror
fopen
__acrt_iob_func
fflush
fclose
getc
__stdio_common_vfprintf
_fseeki64
feof
fread
_popen
__stdio_common_vsprintf
ungetc
setvbuf
_open
_close
_write
_read
tmpfile
__p__commode
_set_fmode
_pclose
_lseeki64
clearerr
fputs
fwrite
__stdio_common_vsscanf
_wfopen
_ftelli64
tmpnam
fseek
ftell
fgets
fputc
_get_stream_buffer_pointers
fsetpos
fgetpos
fgetc
api-ms-win-crt-locale-l1-1-0
localeconv
___lc_codepage_func
setlocale
_configthreadlocale
api-ms-win-crt-time-l1-1-0
clock
_mktime64
strftime
_gmtime64
_localtime64
_difftime64
_time64
api-ms-win-crt-environment-l1-1-0
getenv
api-ms-win-crt-convert-l1-1-0
atoi
atof
strtod
strtoll
strtol
strtoul
strtoull
api-ms-win-crt-filesystem-l1-1-0
_unlock_file
_unlink
_stat64
rename
remove
_access
_fstat64
_lock_file
api-ms-win-crt-utility-l1-1-0
rand
qsort
ws2_32
getaddrinfo
freeaddrinfo
recvfrom
select
getpeername
__WSAFDIsSet
gethostname
ioctlsocket
listen
htonl
accept
ntohl
WSACleanup
connect
bind
WSAGetLastError
send
recv
closesocket
getsockopt
getsockname
WSAStartup
WSAIoctl
WSASetLastError
socket
setsockopt
htons
ntohs
sendto
normaliz
IdnToAscii
crypt32
CertEnumCertificatesInStore
CertGetNameStringA
CertFindExtension
CertAddCertificateContextToStore
CryptDecodeObjectEx
PFXImportCertStore
CryptStringToBinaryA
CertFreeCertificateContext
CertFindCertificateInStore
CryptQueryObject
CertCloseStore
CertOpenStore
CertFreeCertificateChain
CertGetCertificateChain
CertFreeCertificateChainEngine
CertCreateCertificateChainEngine
wldap32
ord22
ord217
ord46
ord211
ord60
ord41
ord30
ord200
ord301
ord79
ord50
ord35
ord26
ord33
ord32
ord27
ord45
ord143
Sections
.text Size: 1.1MB - Virtual size: 1.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 260KB - Virtual size: 260KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 6KB - Virtual size: 14KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 52KB - Virtual size: 51KB
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: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ