dcrat | SolaraB (1) (1)[.]zip

General

Target
SolaraB (1) (1).zip
Size 1.2MB
Sample240525-py5tesca51
SHA256 6372067ca469ebc3ed6a8d74499368ff2ded5d1599c897dd9ce524eaa75e99b4
MD5 2e81f34b7baf1e07707c35c3287b303a
SHA1 a861979b3d71d2f4ac6aa54141cafe3222711b61
SHA512 2b5f8cdc825937b559b7d9e6d2411322d43b3f3053e195a595c26c4cfb19e72b98eb9741709f07b2e99924a1e627e9adb957de2cfa45a41a4a71a3203623501e
SSDEEP 24576:kiUxvZ2DfzC6zuXDLFzxvo4BexFClbTwPWgYldHy7qwT1lmAcDwZ:UxvZef2WUHo4BexEvwPHCJy7PT1YbD4
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

rat dcrat

Malware Config

Signatures

DCRat payload 1 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
static1/unpack001/SolaraB/SolaraB/SolaraBootstrapper.exe	dcrat

Dcrat family
dcrat

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/SolaraB/SolaraB/SolaraBootstrapper.exe

File Explorer

SolaraB (1) (1).zip

.zip 1.2MB
SolaraB/SolaraB/SolaraBootstrapper.exe

.exe 1.9MB

SolaraB (1) (1).zip

SHA256 6372067ca469ebc3ed6a8d74499368ff2ded5d1599c897dd9ce524eaa75e99b4
MD5 2e81f34b7baf1e07707c35c3287b303a
SHA1 a861979b3d71d2f4ac6aa54141cafe3222711b61
SHA512 2b5f8cdc825937b559b7d9e6d2411322d43b3f3053e195a595c26c4cfb19e72b98eb9741709f07b2e99924a1e627e9adb957de2cfa45a41a4a71a3203623501e
SSDEEP 24576:kiUxvZ2DfzC6zuXDLFzxvo4BexFClbTwPWgYldHy7qwT1lmAcDwZ:UxvZef2WUHo4BexEvwPHCJy7PT1YbD4
MD5 SHA1 SHA512 SSDEEP

SolaraB/SolaraB/SolaraBootstrapper.exe

IMPHASH fcf1390e9ce472c7270447fc5c61a0c1
SHA256 be5dc251375463a253d7deea1f53be343a6065f34ba84eabc8e029703186d8ce
MD5 738bc2ca7f1c461631219491a1bf0c6c
SHA1 622381e8d8859e6d09ceef6ffd264a10fefb6db8
SHA512 3bbc4465f0ec55009c753f2d70104ee45c5b3d4e1c69c4e11892b26f9bf61cc857e82d166c4b64cd76ef59fc825f1eeef3bcf617845b7524219f932991387db0
SSDEEP 49152:abA3ftyhsdmcY8oNmeqKPZYNyxfPvmpDp:abw48oNjSAxnvSp
MD5 SHA1 SHA512 SSDEEP

windows:5 windows x86 arch:x86

DCRat payload

Detects payload of DCRat, commonly dropped by NSIS installers.

rat
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

1

Major OS version

5

Entry point

126016

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 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 SetFilePointerEx GetConsoleMode GetConsoleCP HeapSize SetStdHandle GetProcessHeap RaiseException GetSystemInfo VirtualProtect VirtualQuery LoadLibraryExA IsProcessorFeaturePresent IsDebuggerPresent UnhandledExceptionFilter SetUnhandledExceptionFilter GetStartupInfoW QueryPerformanceCounter GetCurrentThreadId GetSystemTimeAsFileTime InitializeSListHead TerminateProcess RtlUnwind EncodePointer InitializeCriticalSectionAndSpinCount TlsAlloc TlsGetValue TlsSetValue TlsFree LoadLibraryExW QueryPerformanceFrequency GetModuleHandleExW GetModuleFileNameA GetACP HeapFree HeapAlloc HeapReAlloc GetStringTypeW LCMapStringW FindFirstFileExA FindNextFileA IsValidCodePage GetOEMCP GetCommandLineA GetEnvironmentStringsW FreeEnvironmentStringsW DecodePointer

gdiplus

GdiplusShutdown GdiplusStartup GdipCreateHBITMAPFromBitmap GdipCreateBitmapFromStreamICM GdipCreateBitmapFromStream GdipDisposeImage GdipCloneImage GdipFree GdipAlloc

Name

.text

Size

196KB

Virtual Size

196KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

42KB

Virtual Size

41KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

4KB

Virtual Size

141KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.didat

Size

512B

Virtual Size

392B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rsrc

Size

229KB

Virtual Size

228KB

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

SolaraB (1) (1).zip

SolaraB/SolaraB/SolaraBootstrapper.exe

kernel32

gdiplus

generic