Static task
static1
Behavioral task
behavioral1
Sample
R3nzSkin.dll
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
R3nzSkin.dll
Resource
win10v2004-20240221-en
General
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Target
R3nzSkin.dll
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Size
740KB
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MD5
0b101b37c373291fc8dbac097125e695
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SHA1
66c8115b0929f918bf2385cecf715ed8fa425ec0
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SHA256
6cba4bd30e036441c0d4f18092a881ce514ff719c84598cc4b7e3990bdc46ac0
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SHA512
27b734102bff44c3ada76b156dc152d20c8744d2b1b9a8fbf182c040ad23993693f1bbc17342afec7602c0a026b36ba9bde1d64c828098aae328e8f26d30a81b
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SSDEEP
12288:IJeQIYHjf4qxfWeJlf6TCbyTqEx2SLPAxHZVy5oj9snTgG:aeQPf4SWcB6ZGEkMPiHG5O9snT
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource R3nzSkin.dll
Files
-
R3nzSkin.dll.dll windows:6 windows x64 arch:x64
0c45b94f9006d7dccb8adc504e48e098
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
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
QueryPerformanceFrequency
GlobalUnlock
WriteFile
FlushFileBuffers
GetFileType
GetStdHandle
WideCharToMultiByte
GlobalLock
GlobalAlloc
GlobalFree
IsValidCodePage
MultiByteToWideChar
GetFileSizeEx
GetModuleFileNameW
GetModuleHandleExW
FreeLibraryAndExitThread
LocalFree
FormatMessageA
GetLocaleInfoEx
CreateDirectoryW
CreateFileW
FindClose
FindFirstFileW
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: 557KB - Virtual size: 557KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 146KB - Virtual size: 146KB
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: 25KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
_RDATA Size: 512B - Virtual size: 348B
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