Static task
static1
Behavioral task
behavioral1
Sample
YgR8BYR.exe
Resource
win10-20240404-en
Behavioral task
behavioral2
Sample
YgR8BYR.exe
Resource
win10v2004-20240611-en
Behavioral task
behavioral3
Sample
YgR8BYR.exe
Resource
win11-20240508-en
General
-
Target
YgR8BYR.exe
-
Size
457KB
-
MD5
ee38d67c5979067260c525b591d77d60
-
SHA1
b1d5dec4fe1235b0ed5c9d0e12227f5a44473d97
-
SHA256
62178c9a949b9eb245cece82475b8dcbbe861b94504e535a09132987372e3e61
-
SHA512
6a526783493d4c7c72b1ff0bf815417225a8fc60ac4262e7fed7c5ce2832b58fe2de0ce0f3d8e27aa647024a83ea2cef7bcd7d114af494c61e862fa0758abbf8
-
SSDEEP
12288:tUYRe2u2LFRfHqDkDVB7gOUxCj2AqeMQmhnn:tUYBb/Pkkx5gOuGKFhnn
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource YgR8BYR.exe
Files
-
YgR8BYR.exe.exe windows:6 windows x64 arch:x64
18525bf7501da1ea027bb2c706baacc1
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
wininet
InternetReadFile
kernel32
WideCharToMultiByte
GlobalUnlock
LoadLibraryA
QueryPerformanceFrequency
GetProcAddress
VerSetConditionMask
GetModuleHandleW
VerifyVersionInfoW
QueryPerformanceCounter
GetModuleHandleA
GetLastError
GlobalFree
WakeAllConditionVariable
GlobalAlloc
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
IsDebuggerPresent
GetStartupInfoW
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
GlobalLock
MultiByteToWideChar
AcquireSRWLockExclusive
SleepConditionVariableSRW
ReleaseSRWLockExclusive
user32
GetWindowLongW
DefWindowProcW
AdjustWindowRectEx
GetKeyState
DestroyWindow
GetDC
SetWindowPos
MonitorFromWindow
EnumDisplayMonitors
CreateWindowExW
ScreenToClient
UnregisterClassW
SetWindowTextW
RegisterClassExW
WindowFromPoint
ShowWindow
GetCapture
GetMonitorInfoW
ClientToScreen
IsChild
GetForegroundWindow
CloseClipboard
SetClipboardData
GetClipboardData
OpenClipboard
SetLayeredWindowAttributes
SetFocus
BringWindowToTop
LoadCursorW
SetCapture
GetCursorPos
ReleaseDC
SetCursorPos
IsIconic
SetForegroundWindow
ReleaseCapture
GetClientRect
SetWindowLongW
SetCursor
EmptyClipboard
gdi32
GetDeviceCaps
msvcp140
??Bios_base@std@@QEBA_NXZ
?read@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@PEAD_J@Z
??1?$basic_istream@DU?$char_traits@D@std@@@std@@UEAA@XZ
?write@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@PEBD_J@Z
??1?$basic_ostream@DU?$char_traits@D@std@@@std@@UEAA@XZ
??1?$basic_ios@DU?$char_traits@D@std@@@std@@UEAA@XZ
?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
?always_noconv@codecvt_base@std@@QEBA_NXZ
?xsgetn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEAD_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
??1?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAA@XZ
??0?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
??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
?xsputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEBD_J@Z
??Bid@locale@std@@QEAA_KXZ
??1_Lockit@std@@QEAA@XZ
??0_Lockit@std@@QEAA@H@Z
?_Getgloballocale@locale@std@@CAPEAV_Locimp@12@XZ
?_Xbad_alloc@std@@YAXXZ
?_Xinvalid_argument@std@@YAXPEBD@Z
?_Xout_of_range@std@@YAXPEBD@Z
?_Xbad_function_call@std@@YAXXZ
?id@?$codecvt@DDU_Mbstatet@@@std@@2V0locale@2@A
?_Fiopen@std@@YAPEAU_iobuf@@PEBDHH@Z
?_Xlength_error@std@@YAXPEBD@Z
?_Getcat@?$codecvt@DDU_Mbstatet@@@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
?sbumpc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?sgetc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?snextc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?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?$char_traits@D@std@@@std@@IEAAXXZ
?_Ipfx@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA_N_N@Z
?in@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
?out@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
?setg@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXPEAD00@Z
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
xinput1_3
ord2
ord4
imm32
ImmSetCompositionWindow
ImmGetContext
ImmReleaseContext
d3d9
Direct3DCreate9
vcruntime140_1
__CxxFrameHandler4
vcruntime140
memset
memmove
memchr
_CxxThrowException
__C_specific_handler
__current_exception_context
__current_exception
strstr
__std_terminate
__std_exception_copy
__std_exception_destroy
memcmp
memcpy
api-ms-win-crt-stdio-l1-1-0
__acrt_iob_func
fseek
_set_fmode
fputc
ftell
_get_stream_buffer_pointers
__stdio_common_vsscanf
_fseeki64
fread
fsetpos
fflush
ungetc
setvbuf
fgetpos
__stdio_common_vsprintf
_wfopen
fwrite
fclose
fgetc
__p__commode
api-ms-win-crt-filesystem-l1-1-0
_lock_file
remove
_unlock_file
api-ms-win-crt-runtime-l1-1-0
_initialize_onexit_table
_cexit
_seh_filter_exe
_set_app_type
_initialize_narrow_environment
_get_narrow_winmain_command_line
_initterm
_initterm_e
exit
_exit
_configure_narrow_argv
_c_exit
_register_thread_local_exe_atexit_callback
terminate
_invalid_parameter_noinfo_noreturn
_errno
_crt_atexit
_register_onexit_function
api-ms-win-crt-convert-l1-1-0
strtol
api-ms-win-crt-string-l1-1-0
tolower
isspace
strncmp
strncpy
strcmp
api-ms-win-crt-utility-l1-1-0
qsort
api-ms-win-crt-heap-l1-1-0
_callnewh
malloc
free
_set_new_mode
api-ms-win-crt-time-l1-1-0
_time64
api-ms-win-crt-math-l1-1-0
floorf
sqrtf
ceilf
sinf
cosf
__setusermatherr
fmodf
acosf
api-ms-win-crt-locale-l1-1-0
_configthreadlocale
Sections
.text Size: 274KB - Virtual size: 273KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 168KB - Virtual size: 168KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 5KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 7KB - Virtual size: 7KB
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: 512B - Virtual size: 496B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ