dcrat | 642200c3a5bcaeff3ee23a05b6097b24dd70761d3fbab23a913be1aec2a5fcc6

General

Target
642200c3a5bcaeff3ee23a05b6097b24dd70761d3fbab23a913be1aec2a5fcc6
Size 3.9MB
Sample260719-3jsgfags2n
SHA256 642200c3a5bcaeff3ee23a05b6097b24dd70761d3fbab23a913be1aec2a5fcc6
MD5 4e3b7dd8fc78e8874dab6f1b46fc61b0
SHA1 f39efb20152d4fd1e1346831e38a5753b991a962
SHA512 6291132b175f03ed5e1d4cae4998753fa29f3b6e72965beb4bef7c7aa1945532134ba00c835557e7106fc9a4a836c870782792444f6eb23ccff0912fa2cd8913
SSDEEP 49152:IBJCvkrVqgcx1L/scgsjtz9yMCi0cr6+VKddZ1fax7SMHIBdbLo0WK11+ek8597s:ygvkAnzLEczjp9y1FcfS//zLooseY
TLSH
T14A16F1425A924E33C2643F32C6D7091D43B5DA326622EF9B376E1599AE06370CF172B7
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

rat infostealer dcrat

Malware Config

Signatures

Family: DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
rat infostealer dcrat

DCRat payload 1 IoCs

rat

resource	yara_rule
sample	family_dcrat_v2

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
642200c3a5bcaeff3ee23a05b6097b24dd70761d3fbab23a913be1aec2a5fcc6

File Explorer

642200c3a5bcaeff3ee23a05b6097b24dd70761d3fbab23a913be1aec2a5fcc6

.exe 3.9MB

642200c3a5bcaeff3ee23a05b6097b24dd70761d3fbab23a913be1aec2a5fcc6

IMPHASH 12e12319f1029ec4f8fcbed7e82df162
SHA256 642200c3a5bcaeff3ee23a05b6097b24dd70761d3fbab23a913be1aec2a5fcc6
MD5 4e3b7dd8fc78e8874dab6f1b46fc61b0
SHA1 f39efb20152d4fd1e1346831e38a5753b991a962
SHA512 6291132b175f03ed5e1d4cae4998753fa29f3b6e72965beb4bef7c7aa1945532134ba00c835557e7106fc9a4a836c870782792444f6eb23ccff0912fa2cd8913
SSDEEP 49152:IBJCvkrVqgcx1L/scgsjtz9yMCi0cr6+VKddZ1fax7SMHIBdbLo0WK11+ek8597s:ygvkAnzLEczjp9y1FcfS//zLooseY
TLSH
T14A16F1425A924E33C2643F32C6D7091D43B5DA326622EF9B376E1599AE06370CF172B7
MD5 SHA1 SHA512 SSDEEP TLSH

windows:5 windows x86 arch:x86

DCRat payload

rat
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

1

Major OS version

5

Entry point

128304

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

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_32BIT_MACHINE

PDB paths

D:\Projects\WinRAR\sfx\build\sfxrar32\Release\sfxrar.pdb

kernel32

GetLastError SetLastError FormatMessageW GetCurrentProcess DeviceIoControl SetFileTime CloseHandle CreateDirectoryW RemoveDirectoryW CreateFileW DeleteFileW CreateHardLinkW GetShortPathNameW GetLongPathNameW MoveFileW GetFileType GetStdHandle WriteFile ReadFile FlushFileBuffers SetEndOfFile SetFilePointer SetFileAttributesW GetFileAttributesW FindClose FindFirstFileW FindNextFileW InterlockedDecrement GetVersionExW GetCurrentDirectoryW GetFullPathNameW FoldStringW GetModuleFileNameW GetModuleHandleW FindResourceW FreeLibrary GetProcAddress GetCurrentProcessId ExitProcess SetThreadExecutionState Sleep LoadLibraryW GetSystemDirectoryW CompareStringW AllocConsole FreeConsole AttachConsole WriteConsoleW GetProcessAffinityMask CreateThread SetThreadPriority InitializeCriticalSection EnterCriticalSection LeaveCriticalSection DeleteCriticalSection SetEvent ResetEvent ReleaseSemaphore WaitForSingleObject CreateEventW CreateSemaphoreW GetSystemTime SystemTimeToTzSpecificLocalTime TzSpecificLocalTimeToSystemTime SystemTimeToFileTime FileTimeToLocalFileTime LocalFileTimeToFileTime FileTimeToSystemTime GetCPInfo IsDBCSLeadByte MultiByteToWideChar WideCharToMultiByte GlobalAlloc LockResource GlobalLock GlobalUnlock GlobalFree LoadResource SizeofResource SetCurrentDirectoryW GetExitCodeProcess GetLocalTime GetTickCount MapViewOfFile UnmapViewOfFile CreateFileMappingW OpenFileMappingW GetCommandLineW SetEnvironmentVariableW ExpandEnvironmentStringsW GetTempPathW MoveFileExW GetLocaleInfoW GetTimeFormatW GetDateFormatW GetNumberFormatW DecodePointer SetFilePointerEx GetConsoleMode GetConsoleCP HeapSize SetStdHandle GetProcessHeap FreeEnvironmentStringsW GetEnvironmentStringsW GetCommandLineA GetOEMCP RaiseException GetSystemInfo VirtualProtect VirtualQuery LoadLibraryExA IsProcessorFeaturePresent IsDebuggerPresent UnhandledExceptionFilter SetUnhandledExceptionFilter GetStartupInfoW QueryPerformanceCounter GetCurrentThreadId GetSystemTimeAsFileTime InitializeSListHead TerminateProcess LocalFree RtlUnwind EncodePointer InitializeCriticalSectionAndSpinCount TlsAlloc TlsGetValue TlsSetValue TlsFree LoadLibraryExW QueryPerformanceFrequency GetModuleHandleExW GetModuleFileNameA GetACP HeapFree HeapAlloc HeapReAlloc GetStringTypeW LCMapStringW FindFirstFileExA FindNextFileA IsValidCodePage

oleaut32

SysAllocString SysFreeString VariantClear

gdiplus

GdipAlloc GdipDisposeImage GdipCloneImage GdipCreateBitmapFromStream GdipCreateBitmapFromStreamICM GdipCreateHBITMAPFromBitmap GdiplusStartup GdiplusShutdown GdipFree

Name

.text

Size

199KB

Virtual Size

198KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

44KB

Virtual Size

43KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

4KB

Virtual Size

145KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.didat

Size

512B

Virtual Size

400B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rsrc

Size

56KB

Virtual Size

55KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

9KB

Virtual Size

8KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

642200c3a5bcaeff3ee23a05b6097b24dd70761d3fbab23a913be1aec2a5fcc6

kernel32

oleaut32

gdiplus

generic