oski | c20f1a1b65385be4a6cc1924f0fe7334[.]exe

General

Target
c20f1a1b65385be4a6cc1924f0fe7334.exe
Size 200KB
Sample230505-fbgnmsac6y
SHA256 d894f6b5147fcbadc428a161bfc8b7b4b0d040665862eb4c8d1b3624b09cd6fa
MD5 c20f1a1b65385be4a6cc1924f0fe7334
SHA1 a6fc64e75dbbe40b7beaeea3f00f7db9bcc95c0a
SHA512 89c28492aa10a557a8f71c183c261198e28d7fbf40d6aee98bf175643cc725011a9ccff705ffcdb0ac70bf5092fc9ab99a0bde45c2ab77cd42c6e0a3d86d8b01
SSDEEP 3072:WfUomEuYm98dlSq7gt5q7Dx+XgS6aCEwhOfUbCalNT2pbB3fI91Xi6FLPo3c:WfUauY68uSWCx+XA7mg2pNo1Ljo3c
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

oski

Malware Config

Extracted

Family

oski

C2

worthknowing.us

Signatures

Oski family
oski

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
c20f1a1b65385be4a6cc1924f0fe7334.exe

File Explorer

c20f1a1b65385be4a6cc1924f0fe7334.exe

.exe 200KB

c20f1a1b65385be4a6cc1924f0fe7334.exe

IMPHASH 7bb9d345a5fec4fbbf5100d6a3ffbb8c
SHA256 d894f6b5147fcbadc428a161bfc8b7b4b0d040665862eb4c8d1b3624b09cd6fa
MD5 c20f1a1b65385be4a6cc1924f0fe7334
SHA1 a6fc64e75dbbe40b7beaeea3f00f7db9bcc95c0a
SHA512 89c28492aa10a557a8f71c183c261198e28d7fbf40d6aee98bf175643cc725011a9ccff705ffcdb0ac70bf5092fc9ab99a0bde45c2ab77cd42c6e0a3d86d8b01
SSDEEP 3072:WfUomEuYm98dlSq7gt5q7Dx+XgS6aCEwhOfUbCalNT2pbB3fI91Xi6FLPo3c:WfUauY68uSWCx+XA7mg2pNo1Ljo3c
MD5 SHA1 SHA512 SSDEEP

windows x86

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

29051

Magic Number

267

Subsystem

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_32BIT_MACHINE

PDB paths

kernel32

HeapAlloc GetProcessHeap CreateFileA GetFileSize WriteFile ReadFile MultiByteToWideChar CloseHandle GetFullPathNameW FindFirstFileExW FindClose FindNextFileW LocalAlloc GetVersionExA LocalFree Sleep GlobalMemoryStatus GetFileAttributesA SetFilePointer MapViewOfFile UnmapViewOfFile SystemTimeToFileTime GetTickCount FileTimeToSystemTime GetLocalTime CreateFileMappingA GetFileInformationByHandle WriteConsoleW SetEndOfFile FlushFileBuffers GetConsoleMode GetConsoleCP SetStdHandle FileTimeToLocalFileTime GetLastError FindFirstFileExA FindNextFileA EncodePointer DecodePointer HeapFree WideCharToMultiByte GetSystemTimeAsFileTime GetCommandLineA HeapSetInformation GetStartupInfoW RaiseException TerminateProcess GetCurrentProcess UnhandledExceptionFilter SetUnhandledExceptionFilter IsDebuggerPresent IsProcessorFeaturePresent GetCPInfo InterlockedIncrement InterlockedDecrement GetACP GetOEMCP IsValidCodePage TlsAlloc TlsGetValue TlsSetValue TlsFree GetModuleHandleW SetLastError GetCurrentThreadId GetProcAddress HeapSize ExitProcess HeapCreate GetStdHandle GetModuleFileNameW EnterCriticalSection LeaveCriticalSection InitializeCriticalSectionAndSpinCount RtlUnwind SetHandleCount GetFileType DeleteCriticalSection SetEnvironmentVariableW SetEnvironmentVariableA GetTimeZoneInformation LCMapStringW GetModuleFileNameA FreeEnvironmentStringsW GetEnvironmentStringsW QueryPerformanceCounter GetCurrentProcessId GetStringTypeW HeapReAlloc LoadLibraryW CompareStringW CreateFileW

user32

GetDesktopWindow

netapi32

NetWkstaGetInfo NetApiBufferFree DsRoleGetPrimaryDomainInformation

Sharing