medusalocker | 15b3fe3d254369c30daef4d9eb653660N[.]exe

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General

Target
15b3fe3d254369c30daef4d9eb653660N.exe
Size 335KB
Sample240813-e3vh5svajc
SHA256 192fb7f15cc80e302427c2a227014cf83df77d587be6188a549755d1d8747861
MD5 15b3fe3d254369c30daef4d9eb653660
SHA1 9cd423fc975078eac8903eaa5e3d3d2f3c572653
SHA512 9bc6c4ca2b356e5697779e3eca7212aa08163262c3dd5b64395b8ce9222d9618b7732da5e7f7ed3991917932fc695a2a623512b7f21668c27eb6da234ad16a38
SSDEEP 6144:lkvY9W2QcboLKCwSuo0/WdjEXCNVDLNU3mxcK3PnXvBkyEXq:lkw9XbCwSuo0/EEXCNJprX6yEXq
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

medusalocker

Malware Config

Signatures

MedusaLocker payload 1 IoCs

resource	yara_rule
sample	family_medusalocker

Medusalocker family
medusalocker

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
15b3fe3d254369c30daef4d9eb653660N.exe

File Explorer

15b3fe3d254369c30daef4d9eb653660N.exe

.exe 335KB

15b3fe3d254369c30daef4d9eb653660N.exe

IMPHASH e506ef403f48ac06783e79a565ecf612
SHA256 192fb7f15cc80e302427c2a227014cf83df77d587be6188a549755d1d8747861
MD5 15b3fe3d254369c30daef4d9eb653660
SHA1 9cd423fc975078eac8903eaa5e3d3d2f3c572653
SHA512 9bc6c4ca2b356e5697779e3eca7212aa08163262c3dd5b64395b8ce9222d9618b7732da5e7f7ed3991917932fc695a2a623512b7f21668c27eb6da234ad16a38
SSDEEP 6144:lkvY9W2QcboLKCwSuo0/WdjEXCNVDLNU3mxcK3PnXvBkyEXq:lkw9XbCwSuo0/EEXCNJprX6yEXq
MD5 SHA1 SHA512 SSDEEP

windows:6 windows x86 arch:x86

MedusaLocker payload
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

131096

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_CUI

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

D:\Education\locker\bin\stub_win_x86_encrypter.pdb

crypt32

CryptStringToBinaryW CryptBinaryToStringW

shlwapi

StrStrIW PathFindExtensionW PathIsUNCW

rstrtmgr

RmGetList RmStartSession RmRegisterResources RmEndSession RmShutdown

mpr

WNetGetConnectionW WNetAddConnection2W

kernel32

GetLogicalDrives FindFirstVolumeW SetVolumeMountPointW FindVolumeClose GetVolumePathNamesForVolumeNameW DeleteVolumeMountPointW FindNextVolumeW GetDriveTypeW ReadFile CloseThreadpool CreateThreadpool FindFirstFileExW FindNextFileW WriteFile FindClose CreateFileW SetThreadpoolThreadMinimum SetFileAttributesW CloseThreadpoolCleanupGroup CloseThreadpoolCleanupGroupMembers Sleep SetThreadpoolThreadMaximum CreateThreadpoolCleanupGroup SubmitThreadpoolWork GetConsoleWindow lstrcmpiW SetConsoleTitleW GetWindowsDirectoryW CreateThreadpoolWork SizeofResource GetCurrentProcess AssignProcessToJobObject InitializeProcThreadAttributeList CreatePipe PeekNamedPipe WaitForSingleObject OpenProcess MultiByteToWideChar UpdateProcThreadAttribute LockResource LoadResource FindResourceW CreateProcessW GetModuleHandleW WideCharToMultiByte GetEnvironmentStringsW GetCPInfo GetOEMCP GetACP IsValidCodePage SetFilePointerEx GetFileSizeEx GetFileAttributesExW GetExitCodeProcess CloseHandle GetLastError CreateJobObjectW SetInformationJobObject FreeEnvironmentStringsW SetEnvironmentVariableW GetProcessHeap SetStdHandle GetStringTypeW FlushFileBuffers GetConsoleOutputCP GetConsoleMode HeapSize HeapReAlloc DecodePointer QueryDosDeviceW MoveFileW LocalFree FormatMessageA GetLocaleInfoEx RaiseException WaitForSingleObjectEx GetCurrentThreadId GetExitCodeThread GetNativeSystemInfo IsProcessorFeaturePresent FreeLibraryWhenCallbackReturns CloseThreadpoolWork GetModuleHandleExW ReleaseSRWLockExclusive AcquireSRWLockExclusive WakeAllConditionVariable SleepConditionVariableSRW GetProcAddress InitializeConditionVariable WakeConditionVariable QueryPerformanceCounter QueryPerformanceFrequency InitOnceComplete InitOnceBeginInitialize ReleaseSRWLockShared AcquireSRWLockShared TryAcquireSRWLockExclusive InitializeSRWLock InitializeCriticalSectionEx GetSystemTimeAsFileTime EnterCriticalSection LeaveCriticalSection DeleteCriticalSection InitializeCriticalSectionAndSpinCount SetEvent ResetEvent CreateEventW IsDebuggerPresent UnhandledExceptionFilter SetUnhandledExceptionFilter GetStartupInfoW GetCurrentProcessId InitializeSListHead TerminateProcess RtlUnwind SetLastError EncodePointer TlsAlloc TlsGetValue TlsSetValue TlsFree FreeLibrary LoadLibraryExW CreateThread ExitThread FreeLibraryAndExitThread ExitProcess GetModuleFileNameW GetStdHandle GetCommandLineA GetCommandLineW HeapFree HeapAlloc GetFileType CompareStringW LCMapStringW WriteConsoleW

user32

GetAsyncKeyState RegisterWindowMessageW IsWindowVisible GetShellWindow ShowWindow GetWindowThreadProcessId

advapi32

CryptGenRandom RegSetValueExW OpenProcessToken GetTokenInformation CryptDestroyKey CryptGetKeyParam CryptAcquireContextW CryptEncrypt RegGetValueW CryptExportKey CryptImportKey CryptGenKey CryptReleaseContext RegCloseKey RegCreateKeyExW

shell32

SHEmptyRecycleBinW