Static task
static1
Behavioral task
behavioral1
Sample
SecureBootUEFI.dll
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
SecureBootUEFI.dll
Resource
win10v2004-20240226-en
General
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Target
SecureBootUEFI.dat
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Size
224KB
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MD5
18fdde4bf8d3a369514b0bc8ddcf35dc
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SHA1
c76be590674f9d51e8f70e93fac2f61bbd64d299
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SHA256
9b38b0e842ecc45576a47318429cb7daa6d6c6da2a1600931773c3a4d3f317a7
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SHA512
cd60c94c907325e7b3e288187192f4d3ce3389ff8cbe7a861d96cc2d653287eaa2750b977f92d5e50bf64268d95c6f57f0f4323125aa55f78ddba9dde9ca7a30
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SSDEEP
6144:Yaf2kEDNa5rcf3KATHjhPZnC5HpF7GcH:YjDNa5rw6ATZyHp
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource SecureBootUEFI.dat
Files
-
SecureBootUEFI.dat.dll windows:6 windows x64 arch:x64
534b71424a16e1b9acef9909236af33d
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DLL
Imports
advapi32
GetUserNameW
kernel32
ExpandEnvironmentStringsW
CloseHandle
LoadLibraryW
CreateThread
GetProcAddress
GetModuleHandleW
CopyFileW
GetComputerNameW
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionEx
DeleteCriticalSection
EncodePointer
DecodePointer
MultiByteToWideChar
WideCharToMultiByte
LCMapStringEx
GetStringTypeW
GetCPInfo
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
RtlUnwindEx
RtlPcToFileHeader
RaiseException
InterlockedFlushSList
GetLastError
SetLastError
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
GetFileAttributesExW
CreateDirectoryW
DeleteFileW
ExitProcess
GetModuleHandleExW
GetModuleFileNameW
GetFileSizeEx
SetFilePointerEx
GetStdHandle
GetFileType
FlushFileBuffers
WriteFile
GetConsoleOutputCP
GetConsoleMode
HeapFree
HeapAlloc
FlsAlloc
FlsGetValue
FlsSetValue
FlsFree
CompareStringW
LCMapStringW
GetLocaleInfoW
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
ReadFile
ReadConsoleW
HeapReAlloc
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetACP
GetOEMCP
GetCommandLineA
GetCommandLineW
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableW
GetProcessHeap
SetStdHandle
CreateFileW
HeapSize
WriteConsoleW
SetEndOfFile
RtlUnwind
Sections
.text Size: 145KB - Virtual size: 145KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 60KB - Virtual size: 60KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 5KB - Virtual size: 10KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 8KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
_RDATA Size: 512B - Virtual size: 500B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 512B - Virtual size: 432B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 2KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ