Static task
static1
Behavioral task
behavioral1
Sample
Checker_Final.exe
Resource
win7-20230621-en
Behavioral task
behavioral2
Sample
Checker_Final.exe
Resource
win10v2004-20230621-en
Behavioral task
behavioral3
Sample
Checker_Final.exe
Resource
win7-20230621-en
Behavioral task
behavioral4
Sample
Checker_Final.exe
Resource
win10v2004-20230621-en
Behavioral task
behavioral5
Sample
MaterialSkin.dll
Resource
win7-20230621-en
Behavioral task
behavioral6
Sample
MaterialSkin.dll
Resource
win10v2004-20230621-en
General
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Target
98ec6f9b567e41a6da2192772fd7485e.bin
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Size
5.5MB
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MD5
98ec6f9b567e41a6da2192772fd7485e
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SHA1
946ba7fa4f826966eeed290246b20a08a5e313aa
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SHA256
6c15eaece411558f55a6029e9303248903309ef80f005b01bddca131637cdf3e
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SHA512
3486a101c3e853b7bfe25ac4f1d9e65536dd0c0121b41969da9538c1458a01296b43b025fa2db94cffbbc7a75d7b48ca30848f542e42110b22fcf8ee23cf4559
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SSDEEP
98304:bKiByVIcuhpP6aw8FxXMI+buNgFGaBm9bYyvVHxCRV0fCJxYu34:WkyGcuykxXTq+a09ftRCRVf4
Malware Config
Signatures
-
Unsigned PE 3 IoCs
Checks for missing Authenticode signature.
resource unpack001/Checker_Final.dll unpack001/Checker_Final.exe unpack001/MaterialSkin.dll
Files
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98ec6f9b567e41a6da2192772fd7485e.bin.zip
Password: infected
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Checker_Final.deps.json
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Checker_Final.dll.exe windows x86
Password: infected
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
mscoree
_CorExeMain
Sections
.text Size: 42KB - Virtual size: 42KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
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Checker_Final.exe.exe windows x64
Password: infected
6dbf27f4c70fe2c8ed3e0122ba75d641
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
kernel32
FindNextFileW
GetCurrentProcess
GetModuleHandleExW
GetModuleFileNameW
LeaveCriticalSection
InitializeCriticalSection
GetEnvironmentVariableW
FindClose
MultiByteToWideChar
GetLastError
GetFileAttributesExW
GetFullPathNameW
GetProcAddress
DeleteCriticalSection
WideCharToMultiByte
IsWow64Process
LoadLibraryExW
FreeLibrary
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
EnterCriticalSection
FindFirstFileExW
OutputDebugStringW
LoadLibraryA
GetModuleHandleW
InitializeCriticalSectionAndSpinCount
SetLastError
RaiseException
RtlPcToFileHeader
RtlUnwindEx
InitializeSListHead
GetSystemTimeAsFileTime
GetCurrentThreadId
GetCurrentProcessId
QueryPerformanceCounter
IsDebuggerPresent
IsProcessorFeaturePresent
TerminateProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
LCMapStringEx
DecodePointer
EncodePointer
InitializeCriticalSectionEx
GetStringTypeW
user32
MessageBoxW
shell32
ShellExecuteW
advapi32
RegOpenKeyExW
RegGetValueW
DeregisterEventSource
RegisterEventSourceW
ReportEventW
RegCloseKey
api-ms-win-crt-runtime-l1-1-0
_exit
__p___argc
_initterm_e
_initterm
_get_initial_wide_environment
_invalid_parameter_noinfo_noreturn
_initialize_wide_environment
_configure_wide_argv
_initialize_onexit_table
_set_app_type
__p___wargv
_seh_filter_exe
_register_onexit_function
_cexit
terminate
_errno
exit
abort
_crt_atexit
_c_exit
_register_thread_local_exe_atexit_callback
api-ms-win-crt-stdio-l1-1-0
setvbuf
fflush
_wfopen
__stdio_common_vswprintf
__stdio_common_vfwprintf
_set_fmode
__stdio_common_vsprintf_s
__acrt_iob_func
fputwc
fputws
__p__commode
api-ms-win-crt-heap-l1-1-0
_set_new_mode
_callnewh
free
malloc
calloc
api-ms-win-crt-string-l1-1-0
wcsnlen
strcpy_s
_wcsdup
strcspn
wcsncmp
toupper
api-ms-win-crt-convert-l1-1-0
_wtoi
wcstoul
api-ms-win-crt-locale-l1-1-0
setlocale
___lc_locale_name_func
localeconv
_unlock_locales
_lock_locales
___mb_cur_max_func
_configthreadlocale
__pctype_func
___lc_codepage_func
api-ms-win-crt-math-l1-1-0
frexp
__setusermatherr
api-ms-win-crt-time-l1-1-0
_gmtime64_s
_time64
wcsftime
Sections
.text Size: 95KB - Virtual size: 95KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 37KB - Virtual size: 36KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 2KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 5KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
_RDATA Size: 512B - Virtual size: 244B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 1024B - Virtual size: 792B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
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Checker_Final.pdb
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Checker_Final.runtimeconfig.json
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MaterialSkin.dll.dll windows x86
Password: infected
dae02f32a21e03ce65412f6e56942daa
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
mscoree
_CorDllMain
Sections
.text Size: 6.4MB - Virtual size: 6.4MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
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depends.txt