Static task
static1
Behavioral task
behavioral1
Sample
R3nzSkin.dll
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
R3nzSkin.dll
Resource
win10v2004-20230220-en
General
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Target
R3nzSkin.dll
-
Size
704KB
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MD5
ab9efedc2b17c9005ceb11f4899304ea
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SHA1
75be3ba85b6da15a1690026782b5405dc9c3b47c
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SHA256
3364012b249b09866c690a858721b91b9990a90f009f208c1ccb57cbad2d314d
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SHA512
ff01260df53084ef167e20432e1fdaa3fc86de05245cf594e864f60964652e2decc58825821937002828ad81719aa210c45c7c32217d3073a3513f4ed0d109b0
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SSDEEP
12288:Exn5IcHr0ot6ShyrMFQVTjZPSctQ0b9hfvzk9U3+wWiOtJ8oELlnk32Me:EN572SQgFATYcfrfqa+wjEJ8lLlnk3X
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource R3nzSkin.dll
Files
-
R3nzSkin.dll.dll windows x64
83d12c45b211054474b623e9aa21a3a8
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
Imports
kernel32
QueryPerformanceCounter
GetModuleHandleW
VirtualQuery
DisableThreadLibraryCalls
GetCurrentThread
CloseHandle
ExitProcess
WriteConsoleW
HeapSize
SetStdHandle
GetProcessHeap
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineW
GetCommandLineA
GetOEMCP
GetACP
GetProcAddress
HeapReAlloc
ReadConsoleW
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
GetLocaleInfoW
LCMapStringW
HeapAlloc
HeapFree
GetConsoleMode
GetConsoleOutputCP
WriteFile
QueryPerformanceFrequency
GlobalUnlock
FlushFileBuffers
GetFileType
GetStdHandle
GetFileSizeEx
WideCharToMultiByte
GlobalLock
GlobalAlloc
GlobalFree
IsValidCodePage
MultiByteToWideChar
GetModuleFileNameW
GetModuleHandleExW
FreeLibraryAndExitThread
LocalFree
FormatMessageA
CreateDirectoryW
CreateFileW
FindClose
FindFirstFileExW
FindNextFileW
GetFileAttributesExW
SetEndOfFile
SetFilePointerEx
AreFileApisANSI
GetLastError
GetFileInformationByHandleEx
InitializeSRWLock
ReleaseSRWLockExclusive
AcquireSRWLockExclusive
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionEx
TryEnterCriticalSection
DeleteCriticalSection
GetCurrentThreadId
WaitForSingleObjectEx
Sleep
InitOnceComplete
InitOnceBeginInitialize
EncodePointer
DecodePointer
FlsAlloc
FlsGetValue
FlsSetValue
FlsFree
GetSystemTimeAsFileTime
LCMapStringEx
GetStringTypeW
GetCPInfo
InitializeCriticalSectionAndSpinCount
SetEvent
ResetEvent
CreateEventW
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
IsProcessorFeaturePresent
GetCurrentProcessId
InitializeSListHead
GetCurrentProcess
TerminateProcess
RtlUnwindEx
RtlPcToFileHeader
RaiseException
InterlockedFlushSList
SetLastError
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
ReadFile
CreateThread
ExitThread
RtlUnwind
user32
CloseClipboard
EmptyClipboard
GetClipboardData
SetClipboardData
OpenClipboard
CallWindowProcW
SetWindowLongPtrW
GetAsyncKeyState
SetWindowLongW
MessageBoxA
ScreenToClient
GetCapture
ClientToScreen
IsChild
TrackMouseEvent
GetForegroundWindow
LoadCursorW
SetCapture
SetCursor
GetClientRect
ReleaseCapture
SetCursorPos
GetCursorPos
shell32
SHGetKnownFolderPath
ole32
CoTaskMemFree
imm32
ImmSetCompositionWindow
ImmReleaseContext
ImmGetContext
d3dcompiler_47
D3DCompile
Sections
.text Size: 533KB - Virtual size: 532KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 136KB - Virtual size: 135KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 5KB - Virtual size: 17KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 25KB - Virtual size: 24KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
_RDATA Size: 512B - Virtual size: 244B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 1024B - Virtual size: 856B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ