Static task
static1
Behavioral task
behavioral1
Sample
rundll32.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
rundll32.exe
Resource
win10v2004-20230703-en
General
-
Target
rundll32.exe
-
Size
72KB
-
MD5
57a6b4bdf247c1a6ca08ac09a8f9b742
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SHA1
cbfd746699a0c0d37597f91f3f4ed2ce6213025c
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SHA256
98d37eff504a7adb864131ea4a042aaf4d79c4356960a8ab2fa656cc59aec014
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SHA512
b6390f1cb9ec0b9cbcd955017932883b1c2bd8943bd6c0ddbf067dd03700e8393e5c429bb5481feee86fa6243163574960f1ef3a7d5b5f0d77aa741fda4f1a1a
-
SSDEEP
1536:4IINX/kCm9haNj3kJNBQuM9bIUCmebmR:4Iokf4H93HeSR
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource rundll32.exe
Files
-
rundll32.exe.exe windows x64
5c68de198b5d2dd5c1129782ad19676c
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
msvcrt
__wgetmainargs
_amsg_exit
__CxxFrameHandler3
__set_app_type
_unlock
__dllonexit
_onexit
?terminate@@YAXXZ
exit
_exit
_cexit
_vsnwprintf
_commode
__setusermatherr
_fmode
_wcmdln
_initterm
_lock
_XcptFilter
free
_purecall
_wtoi
memcpy_s
__C_specific_handler
_callnewh
malloc
memset
api-ms-win-core-com-l1-1-0
CoWaitForMultipleHandles
CoUninitialize
CoAddRefServerProcess
CoRevokeClassObject
CoCreateInstance
CoInitializeEx
CoRegisterClassObject
CoResumeClassObjects
CLSIDFromString
CoInitializeSecurity
CoReleaseServerProcess
api-ms-win-core-file-l1-1-0
CreateFileW
ReadFile
GetFileAttributesW
SetFilePointer
api-ms-win-core-libraryloader-l1-2-0
GetModuleFileNameA
GetModuleHandleW
GetModuleHandleExW
LoadStringW
FreeLibrary
LoadLibraryExW
GetProcAddress
api-ms-win-core-wow64-l1-1-1
GetSystemWow64Directory2W
IsWow64Process2
api-ms-win-core-synch-l1-2-0
InitOnceExecuteOnce
Sleep
api-ms-win-core-synch-l1-1-0
WaitForSingleObject
ReleaseSemaphore
CreateSemaphoreExW
AcquireSRWLockExclusive
SetEvent
ReleaseMutex
ReleaseSRWLockShared
CreateEventW
AcquireSRWLockShared
ReleaseSRWLockExclusive
CreateMutexExW
OpenSemaphoreW
WaitForSingleObjectEx
api-ms-win-core-heap-l1-1-0
HeapSetInformation
GetProcessHeap
HeapFree
HeapAlloc
api-ms-win-core-errorhandling-l1-1-0
SetUnhandledExceptionFilter
UnhandledExceptionFilter
SetErrorMode
GetLastError
SetLastError
api-ms-win-core-processenvironment-l1-1-0
GetCommandLineW
SearchPathW
api-ms-win-core-processthreads-l1-1-0
InitializeProcThreadAttributeList
UpdateProcThreadAttribute
ExitProcess
TerminateProcess
GetCurrentProcess
CreateProcessW
GetCurrentProcessId
GetStartupInfoW
GetCurrentThreadId
DeleteProcThreadAttributeList
api-ms-win-core-util-l1-1-0
DecodePointer
EncodePointer
api-ms-win-core-heap-l2-1-0
LocalAlloc
LocalFree
api-ms-win-core-sysinfo-l1-1-0
GetSystemTimeAsFileTime
GetSystemDirectoryW
GetTickCount
api-ms-win-core-wow64-l1-1-0
Wow64EnableWow64FsRedirection
api-ms-win-core-winrt-error-l1-1-0
RoOriginateErrorW
RoOriginateError
api-ms-win-core-localization-l1-2-0
FormatMessageW
api-ms-win-core-console-l1-2-0
AttachConsole
FreeConsole
api-ms-win-core-debug-l1-1-0
DebugBreak
IsDebuggerPresent
OutputDebugStringW
api-ms-win-core-handle-l1-1-0
CloseHandle
api-ms-win-core-path-l1-1-0
PathCchAppend
api-ms-win-core-console-l1-1-0
WriteConsoleW
api-ms-win-core-string-l1-1-0
CompareStringW
WideCharToMultiByte
api-ms-win-core-rtlsupport-l1-1-0
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
api-ms-win-core-profile-l1-1-0
QueryPerformanceCounter
api-ms-win-core-string-l2-1-0
CharNextW
api-ms-win-core-sidebyside-l1-1-0
ReleaseActCtx
ActivateActCtx
CreateActCtxW
DeactivateActCtx
QueryActCtxW
api-ms-win-downlevel-shlwapi-l1-1-0
PathIsRelativeW
api-ms-win-downlevel-shlwapi-l2-1-0
SHSetThreadRef
imagehlp
ImageDirectoryEntryToData
ntdll
NtClose
NtOpenProcessToken
RtlNtStatusToDosError
NtQueryInformationToken
RtlSetSearchPathMode
RtlWow64IsWowGuestMachineSupported
RtlImageNtHeader
NtQuerySystemInformation
NtSetInformationToken
api-ms-win-core-delayload-l1-1-1
ResolveDelayLoadedAPI
api-ms-win-core-delayload-l1-1-0
DelayLoadFailureHook
api-ms-win-core-apiquery-l1-1-0
ApiSetQueryApiSetPresence
Sections
.text Size: 32KB - Virtual size: 31KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 16KB - Virtual size: 14KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 4KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.didat Size: 4KB - Virtual size: 248B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 4KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 4KB - Virtual size: 268B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ