medusalocker | medusa4[.]exe

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General

Target

medusa4.exe
Size

661KB
MD5

19ddac9782acd73f66c5fe040e86ddee
SHA1

24ceba1e2951cde8e41939da21c6ba3030fc531d
SHA256

dde3c98b6a370fb8d1785f3134a76cb465cd663db20dffe011da57a4de37aa95
SHA512

e7be7472241fdd26db48dbd0311afe821905f6d59dfb56e3dc035944b7346b0767a8af76d110c5f60c0ba0183ca3791e56d9b3c8b9ba887afa111aafc949c1d4
SSDEEP

12288:vN3K5e8nbwFigzk6VVMqX8aQNRMcauV9B/rtiPnA40Q8:hCXbwFigzkQVdXvlcayDh49

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
medusa4.exe

Files

medusa4.exe
.exe windows x86

7646b22cc6ac64de1e2378e6cd44d3a6

Headers

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

Imports

kernel32

WriteConsoleW
GetCurrentProcess
CopyFileW
GetTickCount
CreateProcessW
Process32FirstW
Process32NextW
CreateToolhelp32Snapshot
OpenProcess
WaitForSingleObject
TerminateProcess
FindClose
GetEnvironmentVariableW
GetLogicalDrives
MoveFileW
GetProcessHeap
SetFilePointerEx
HeapAlloc
CloseHandle
GetLastError
CreateFileW
WriteFile
HeapSize
GetConsoleMode
GetConsoleCP
FlushFileBuffers
SetStdHandle
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineW
GetCommandLineA
GetOEMCP
GetACP
IsValidCodePage
HeapReAlloc
GetFileType
GetTimeZoneInformation
EnumSystemLocalesW
HeapFree
GetFileSizeEx
GetUserDefaultLCID
IsValidLocale
GetTimeFormatW
GetDateFormatW
GetStdHandle
ReadFile
OpenMutexW
Sleep
CreateMutexW
GetModuleFileNameW
SetEnvironmentVariableW
EncodePointer
DecodePointer
RaiseException
GetCurrentThreadId
IsProcessorFeaturePresent
QueueUserWorkItem
GetModuleHandleExW
EnterCriticalSection
LeaveCriticalSection
TryEnterCriticalSection
DeleteCriticalSection
QueryPerformanceCounter
QueryPerformanceFrequency
FormatMessageW
WideCharToMultiByte
MultiByteToWideChar
FindFirstFileExW
FindNextFileW
GetFileAttributesExW
SetLastError
InitializeCriticalSectionAndSpinCount
CreateEventW
SwitchToThread
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetSystemTimeAsFileTime
GetModuleHandleW
GetProcAddress
WaitForSingleObjectEx
GetStringTypeW
CompareStringW
LCMapStringW
GetLocaleInfoW
GetCPInfo
SetEvent
ResetEvent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsDebuggerPresent
GetStartupInfoW
GetCurrentProcessId
InitializeSListHead
LocalFree
CreateTimerQueue
SignalObjectAndWait
CreateThread
SetThreadPriority
GetThreadPriority
GetLogicalProcessorInformation
CreateTimerQueueTimer
ChangeTimerQueueTimer
DeleteTimerQueueTimer
GetNumaHighestNodeNumber
GetProcessAffinityMask
SetThreadAffinityMask
RegisterWaitForSingleObject
UnregisterWait
GetCurrentThread
GetThreadTimes
FreeLibrary
FreeLibraryAndExitThread
GetModuleHandleA
LoadLibraryExW
GetVersionExW
VirtualAlloc
VirtualProtect
VirtualFree
DuplicateHandle
ReleaseSemaphore
InterlockedPopEntrySList
InterlockedPushEntrySList
InterlockedFlushSList
QueryDepthSList
UnregisterWaitEx
LoadLibraryW
RtlUnwind
ExitProcess

advapi32

CryptDestroyKey
RegCreateKeyW
RegOpenKeyExW
RegSetValueExW
RegCloseKey
CryptReleaseContext
CryptGenKey
CryptImportKey
OpenProcessToken
GetTokenInformation
CloseServiceHandle
OpenSCManagerW
DeleteService
ControlService
EnumDependentServicesW
StartServiceW
OpenServiceW
QueryServiceStatusEx
CryptExportKey
CryptAcquireContextW
CryptEncrypt
CryptDuplicateKey
RegDeleteValueW

shell32

SHEmptyRecycleBinW

ole32

CLSIDFromString
IIDFromString
CoInitializeEx
CoGetObject
CoInitialize
CoUninitialize
CoCreateInstance
CoInitializeSecurity

oleaut32

SysAllocStringByteLen
VariantClear
SysAllocString
SysStringByteLen
VariantInit
SysFreeString

crypt32

CryptStringToBinaryA

mpr

WNetGetConnectionW

netapi32

NetApiBufferFree
NetShareEnum

iphlpapi

IcmpSendEcho
IcmpCloseHandle
GetAdaptersInfo
IcmpCreateFile

ws2_32

inet_addr

rstrtmgr

RmShutdown
RmRegisterResources
RmStartSession
RmGetList
RmEndSession

Sections

.text
Size: 451KB - Virtual size: 450KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 171KB - Virtual size: 170KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 14KB - Virtual size: 18KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 512B - Virtual size: 480B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 23KB - Virtual size: 22KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

7646b22cc6ac64de1e2378e6cd44d3a6

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

advapi32

shell32

ole32

oleaut32

crypt32

mpr

netapi32

iphlpapi

ws2_32

rstrtmgr

Sections

.text Size: 451KB - Virtual size: 450KB

.rdata Size: 171KB - Virtual size: 170KB

.data Size: 14KB - Virtual size: 18KB

.rsrc Size: 512B - Virtual size: 480B

.reloc Size: 23KB - Virtual size: 22KB

.text
Size: 451KB - Virtual size: 450KB

.rdata
Size: 171KB - Virtual size: 170KB

.data
Size: 14KB - Virtual size: 18KB

.rsrc
Size: 512B - Virtual size: 480B

.reloc
Size: 23KB - Virtual size: 22KB