Behavioral task
behavioral1
Sample
2120cf93b6be39884f951ee2a31c5999.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2120cf93b6be39884f951ee2a31c5999.exe
Resource
win10v2004-20231222-en
General
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Target
2120cf93b6be39884f951ee2a31c5999
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Size
669KB
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MD5
2120cf93b6be39884f951ee2a31c5999
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SHA1
317b695da0ece90979f0400c2c7800e50bec8bb9
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SHA256
c5bef2a489740192a0b2c34cdc2fd954d0b8d5fabcbe0ecb8b78f9301e5a30a6
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SHA512
3038b27dcc263675a642f77d9dbaaff921c3a56f160051df44619dbafcd5d108db1c6caeacb70179c511e284035d329f29c34dd19500d2bd4006d2f86ee1dc33
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SSDEEP
12288:dQA0FfTcwpBuV2UxqDmuiLZeUaoFi2XZWfGe615HhAZV8DKKD/KeX:Tuf4wTuV2Ux3uIZeUBi2Te6HWjKrKe
Malware Config
Signatures
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MedusaLocker payload 1 IoCs
resource yara_rule sample family_medusalocker -
Medusalocker family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2120cf93b6be39884f951ee2a31c5999
Files
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2120cf93b6be39884f951ee2a31c5999.exe windows:6 windows x86 arch:x86
1a395bd10b20c116b11c2db5ee44c225
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
Process32NextW
Process32FirstW
CreateProcessW
GetTickCount
CopyFileW
GetCurrentProcess
WriteConsoleW
CreateToolhelp32Snapshot
OpenProcess
WaitForSingleObject
TerminateProcess
FindClose
FindNextVolumeW
GetVolumePathNamesForVolumeNameW
FindVolumeClose
SetVolumeMountPointW
FindFirstVolumeW
QueryDosDeviceW
GetEnvironmentVariableW
GetLogicalDrives
GetProcessHeap
MoveFileExW
SetFilePointerEx
HeapAlloc
CloseHandle
GetLastError
SetFileAttributesW
GetFileAttributesW
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
CryptExportKey
RegCreateKeyW
RegOpenKeyExW
RegSetValueExW
RegCloseKey
CryptReleaseContext
CryptGenKey
CryptImportKey
OpenProcessToken
GetTokenInformation
CloseServiceHandle
OpenSCManagerW
DeleteService
ControlService
EnumDependentServicesW
OpenServiceW
QueryServiceStatusEx
CryptDestroyKey
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: 459KB - Virtual size: 458KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 171KB - Virtual size: 171KB
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