Static task
static1
Behavioral task
behavioral1
Sample
nu_plugin_formats.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
nu_plugin_formats.exe
Resource
win10v2004-20240419-en
General
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Target
nu_plugin_formats.exe
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Size
5.2MB
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MD5
9a49996072eb7b44ea8b51c913a8fa8b
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SHA1
8246b166a21e1cc2d5ebb6f55560d347ae5b71f9
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SHA256
7b293b81e03eae8d8d3de773ef8303874f22a6757ca4e257c757691ee903f9d2
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SHA512
6ca542e78e505a17c65c284fcf43f7b7f8e0236a4cb21e86837041d83915c6d7b2cbab9a2d466ee08ee02deae667cef3721d8330b34598e896cb19ab09d283a4
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SSDEEP
49152:0ipcWI3AuWwQTUXjAAea+KDt4jQZYVGNSKAIb4h14P/O4abVNSqVcyAthX6w5sla:0LWASW4hPwjnTj
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource nu_plugin_formats.exe
Files
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nu_plugin_formats.exe.exe windows:6 windows x64 arch:x64
8fc4a05ca10fcbd439580938966f0982
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
kernel32
HeapFree
HeapReAlloc
ReleaseSRWLockExclusive
TryAcquireSRWLockExclusive
GetLastError
CreateFileW
WaitNamedPipeW
DisconnectNamedPipe
ReadFile
WriteFile
FlushFileBuffers
CloseHandle
SwitchToThread
AcquireSRWLockExclusive
WakeAllConditionVariable
SleepConditionVariableSRW
WakeConditionVariable
AddVectoredExceptionHandler
SetThreadStackGuarantee
SetLastError
GetCurrentDirectoryW
GetEnvironmentVariableW
GetCommandLineW
QueryPerformanceCounter
QueryPerformanceFrequency
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
AcquireSRWLockShared
ReleaseSRWLockShared
GetModuleHandleA
GetProcAddress
GetProcessHeap
HeapAlloc
WaitForSingleObject
GetModuleHandleW
FormatMessageW
GetModuleFileNameW
ExitProcess
GetStdHandle
GetConsoleMode
MultiByteToWideChar
WriteConsoleW
WideCharToMultiByte
ReadConsoleW
CreateThread
GetCurrentThread
WaitForSingleObjectEx
LoadLibraryA
GetCurrentProcess
GetCurrentProcessId
CreateMutexA
ReleaseMutex
SetFilePointerEx
GetConsoleOutputCP
HeapSize
LCMapStringW
CompareStringW
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
IsProcessorFeaturePresent
RtlUnwindEx
RtlPcToFileHeader
RaiseException
EncodePointer
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
TerminateProcess
GetModuleHandleExW
GetCommandLineA
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableW
SetStdHandle
GetFileType
GetStringTypeW
FlsAlloc
FlsGetValue
FlsSetValue
FlsFree
bcrypt
BCryptGenRandom
advapi32
SystemFunction036
ntdll
NtReadFile
RtlNtStatusToDosError
NtWriteFile
Sections
.text Size: 3.5MB - Virtual size: 3.5MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 1.5MB - Virtual size: 1.5MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 3KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 168KB - Virtual size: 168KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
_RDATA Size: 512B - Virtual size: 500B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 38KB - Virtual size: 38KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ