DiskCleaner
Static task
static1
Behavioral task
behavioral1
Sample
rundll32_04BF0000.dll
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
rundll32_04BF0000.dll
Resource
win10v2004-20231020-en
General
-
Target
rundll32_04BF0000.exe
-
Size
473KB
-
MD5
0820fec66cdf0e0a6fb81cb8ba39b43b
-
SHA1
44e8a400f1bd90943f61442a837b30d0be964271
-
SHA256
c095497d1144ceca4cbbbeda19952322aa001e61318d6eecd4e97002f3cfc9aa
-
SHA512
e923164ee5c05b3ff23c5503edd18dd44b6240ff4aca5d409211b67a16df284ed1b5e24a0aadbb8c2b3b95bdae96f522873e9209b9ea5168826bd4c13ec0cd87
-
SSDEEP
12288:KF6VnQ1g3POtcNnM+AoSVG6cXFxkNDi8OTVSLO/OLSQGjQzcrZekFjGcekx:Kw7nMjoSVG6cXFxkNDi8OTVSLO/OLSQr
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource rundll32_04BF0000.exe
Files
-
rundll32_04BF0000.exe.dll windows:6 windows x86 arch:x86
620681ecda80118973ed67e18f19a2d9
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL
Imports
shell32
SHChangeNotify
ShellExecuteExW
iphlpapi
GetAdaptersAddresses
netapi32
NetUserGetInfo
NetApiBufferFree
DsRoleGetPrimaryDomainInformation
ws2_32
inet_ntop
advapi32
GetUserNameW
winhttp
WinHttpConnect
WinHttpCloseHandle
WinHttpSendRequest
WinHttpOpen
WinHttpCrackUrl
WinHttpOpenRequest
WinHttpSetTimeouts
WinHttpSetOption
WinHttpReceiveResponse
WinHttpQueryHeaders
WinHttpQueryDataAvailable
WinHttpReadData
kernel32
WriteConsoleW
HeapSize
SetEndOfFile
SetStdHandle
SetEnvironmentVariableW
FreeEnvironmentStringsW
GetEnvironmentStringsW
CreateFileW
DecodePointer
GetCommandLineW
GetCommandLineA
GetOEMCP
GetACP
IsValidCodePage
FindNextFileW
FindFirstFileExW
FindClose
GetTimeZoneInformation
HeapReAlloc
EnumSystemLocalesW
GetUserDefaultLCID
HeapAlloc
GetProcessHeap
CreateThread
GetConsoleOutputCP
CreatePipe
SetHandleInformation
OpenProcess
TerminateProcess
CloseHandle
ExitThread
CreateProcessW
ExitProcess
WriteFile
GetStdHandle
ReadFile
K32EnumProcesses
K32EnumProcessModules
K32GetModuleFileNameExW
GetNativeSystemInfo
CreateToolhelp32Snapshot
Wow64EnableWow64FsRedirection
Process32FirstW
Process32NextW
GetLastError
GetCurrentProcessId
GetModuleFileNameA
SetPriorityClass
SetThreadPriority
GetCurrentProcess
ResumeThread
GetComputerNameW
GetModuleHandleW
GetProcAddress
Sleep
WideCharToMultiByte
MultiByteToWideChar
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionEx
DeleteCriticalSection
GetLocaleInfoEx
EncodePointer
LCMapStringEx
GetStringTypeW
CompareStringEx
GetCPInfo
InitializeCriticalSectionAndSpinCount
SetEvent
ResetEvent
WaitForSingleObjectEx
CreateEventW
IsProcessorFeaturePresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsDebuggerPresent
GetStartupInfoW
QueryPerformanceCounter
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsValidLocale
RtlUnwind
RaiseException
InterlockedFlushSList
SetLastError
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
GetModuleHandleExW
GetModuleFileNameW
HeapFree
GetFileType
GetFileSizeEx
SetFilePointerEx
FlushFileBuffers
GetConsoleMode
ReadConsoleW
GetDateFormatW
GetTimeFormatW
CompareStringW
LCMapStringW
GetLocaleInfoW
Exports
Exports
Sections
.text Size: 368KB - Virtual size: 367KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 76KB - Virtual size: 75KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 7KB - Virtual size: 11KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 512B - Virtual size: 248B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 20KB - Virtual size: 19KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ