medusalocker | 951facf3f3ef6f6163aa87383953132563d8ef1508b60cb130b1b7d5b96552aa[.]sample

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General

Target
951facf3f3ef6f6163aa87383953132563d8ef1508b60cb130b1b7d5b96552aa.sample
Size 335KB
Sample240227-wdpd9sfd76
SHA256 951facf3f3ef6f6163aa87383953132563d8ef1508b60cb130b1b7d5b96552aa
MD5 971e7aa8b0f947b99c9efaeff6ec6829
SHA1 8736231b49625d21d51e9def26234fd30ec94643
SHA512 4c639ab003b32363bfb8a3d4d25db5bcab535f228267f9d50d80d4c18e8b304ce6266e486bb29f475b994356694dc84bbafc52e06bceeba768411026dd42f4cc
SSDEEP 6144:Ss39QEhvsfBm9LA8CwumYTyBR/APygP9cnPRpjbeVPDGsIFvrMqu:z9dSSA8CwumYTyBJAPyglgq1f2rMqu
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
951facf3f3ef6f6163aa87383953132563d8ef1508b60cb130b1b7d5b96552aa.sample

File Explorer

951facf3f3ef6f6163aa87383953132563d8ef1508b60cb130b1b7d5b96552aa.sample

.exe 335KB

951facf3f3ef6f6163aa87383953132563d8ef1508b60cb130b1b7d5b96552aa.sample

IMPHASH e9333030d13d212366770942e0dbc7be
SHA256 951facf3f3ef6f6163aa87383953132563d8ef1508b60cb130b1b7d5b96552aa
MD5 971e7aa8b0f947b99c9efaeff6ec6829
SHA1 8736231b49625d21d51e9def26234fd30ec94643
SHA512 4c639ab003b32363bfb8a3d4d25db5bcab535f228267f9d50d80d4c18e8b304ce6266e486bb29f475b994356694dc84bbafc52e06bceeba768411026dd42f4cc
SSDEEP 6144:Ss39QEhvsfBm9LA8CwumYTyBR/APygP9cnPRpjbeVPDGsIFvrMqu:z9dSSA8CwumYTyBJAPyglgq1f2rMqu
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

132758

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

RmRegisterResources RmGetList RmStartSession RmShutdown RmEndSession

mpr

WNetGetConnectionW WNetAddConnection2W

kernel32

GetLogicalDrives FindFirstVolumeW SetVolumeMountPointW FindVolumeClose GetVolumePathNamesForVolumeNameW DeleteVolumeMountPointW FindNextVolumeW GetDriveTypeW ReadFile CloseThreadpool CreateThreadpool FindFirstFileExW FindNextFileW WriteFile GetSystemTimes 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

GetForegroundWindow RegisterWindowMessageW GetWindowThreadProcessId ShowWindow IsWindowVisible GetAsyncKeyState GetShellWindow

advapi32

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

shell32

SHEmptyRecycleBinW