Static task
static1
Behavioral task
behavioral1
Sample
bootsect.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
bootsect.exe
Resource
win10v2004-20230221-en
General
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Target
bootsect.exe
-
Size
110KB
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MD5
db94ece57be4a2722d2f439bb71e65d4
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SHA1
60bcecfe4acea6ae91918a89937d55f23f280f07
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SHA256
44f6a4a6b40416fdb8d642af0c36a44d70ef25a5b87f4e9a9bb4dbe0c1cee653
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SHA512
fbc0f5f10f0aaff08a7977227be113da7dde9decec8324ea7551cd219e35b5b0b1499472f1d1c6ed1ccf67ee86e6f52584cd6c58ebcf931800e86fc4f0a098fb
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SSDEEP
1536:4RAmC9M/u7ig6XwL1Itg1XCxfjhLBD6f274DsV9zFj/+5htJcf:4WkVgd1Itg1XCBjh9t7wQ9RjczGf
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource bootsect.exe
Files
-
bootsect.exe.exe windows x64
5a1e57c155076842400521449e5bd0d0
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
kernel32
QueryDosDeviceW
FormatMessageW
GetModuleFileNameW
LocalFree
Sleep
GetLastError
GetCurrentProcessId
GetCurrentThreadId
GetTickCount
QueryPerformanceCounter
GetModuleHandleW
SetUnhandledExceptionFilter
OutputDebugStringA
ReadFile
WriteFile
SetFilePointer
TerminateProcess
GetCurrentProcess
UnhandledExceptionFilter
SearchPathW
MapViewOfFile
UnmapViewOfFile
GetSystemDefaultUILanguage
FindResourceExW
FreeLibrary
LoadResource
LoadLibraryExW
GetLocaleInfoW
GetVersionExW
CreateFileW
SetLastError
CreateFileMappingW
GetUserDefaultUILanguage
CloseHandle
GetSystemTimeAsFileTime
msvcrt
memcpy
memset
?terminate@@YAXXZ
free
isdigit
mbtowc
__mb_cur_max
isleadbyte
isxdigit
localeconv
_iob
_snprintf
_itoa
wctomb
malloc
ferror
iswctype
wcstombs
realloc
__badioinfo
__pioinfo
_read
_fileno
_lseeki64
_write
_isatty
ungetc
wcsstr
bsearch
wcsncmp
__set_app_type
_fmode
_commode
__setusermatherr
_amsg_exit
_initterm
exit
_cexit
_exit
_XcptFilter
__C_specific_handler
__getmainargs
_wcslwr
_errno
iswxdigit
_vsnwprintf
printf
isalpha
_wcsnicmp
_wcsicmp
_stricmp
calloc
ntdll
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
NtResetEvent
NtCreateEvent
NtOpenDirectoryObject
RtlAllocateHeap
NtQueryDirectoryObject
NtWaitForSingleObject
NtQuerySymbolicLinkObject
NtOpenSymbolicLinkObject
RtlFreeHeap
NtDeviceIoControlFile
NtOpenFile
NtClose
RtlNtStatusToDosError
NtQueryVolumeInformationFile
NtFsControlFile
RtlInitUnicodeString
NtQuerySystemInformation
NtOpenKey
NtQueryValueKey
advapi32
RegQueryValueExW
RegCloseKey
RegOpenKeyExW
Sections
.text Size: 68KB - Virtual size: 67KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 22KB - Virtual size: 27KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 15KB - Virtual size: 14KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 2KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ