medusalocker | NEAS[.]51b8a283f87a95edb5e98125e5730bcf843fc7ec8fcdc175c8dc0ba3032e8a51exe_JC[.]exe

Resubmissions

14-10-2023 09:40

231014-lnbaaabg5w 10

Sharing

Copy URL

Twitter E-mail

General

Target

NEAS.51b8a283f87a95edb5e98125e5730bcf843fc7ec8fcdc175c8dc0ba3032e8a51exe_JC.exe
Size

340KB
MD5

714870c33ba84e744b84b32e6e114ed9
SHA1

840f442d4466713becdf72b88846871330ac38e7
SHA256

51b8a283f87a95edb5e98125e5730bcf843fc7ec8fcdc175c8dc0ba3032e8a51
SHA512

270c584cc9f696de3421429627a07bfbd7829a033cfdc16280e7e233e8ae09e2f1cd0341537a6b050811683d93a14a1465aa3ab96e9577c98ebea521faae65f2
SSDEEP

6144:PNs9prB0CnszdPZxMzk1ukSXa9bnuDOeFdGpBP7ENf3zcfUE:y9RaPZxMzk1uBXa9bu2JeAfUE

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
NEAS.51b8a283f87a95edb5e98125e5730bcf843fc7ec8fcdc175c8dc0ba3032e8a51exe_JC.exe

Files

NEAS.51b8a283f87a95edb5e98125e5730bcf843fc7ec8fcdc175c8dc0ba3032e8a51exe_JC.exe
.exe windows:6 windows x86

98834427a5509afe9feea6f9ad5441d9

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

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
FindFirstFileExW
FindNextFileW
WriteFile
GetSystemTimes
FindClose
CreateFileW
SetFileAttributesW
Sleep
GetConsoleWindow
lstrcmpiW
SetConsoleTitleW
MoveFileW
SizeofResource
GetCurrentProcess
AssignProcessToJobObject
GetWindowsDirectoryW
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
InitializeProcThreadAttributeList
LocalFree
FormatMessageA
GetLocaleInfoEx
InitializeConditionVariable
WakeConditionVariable
WakeAllConditionVariable
SleepConditionVariableSRW
RaiseException
GetCurrentThreadId
IsProcessorFeaturePresent
FreeLibraryWhenCallbackReturns
CreateThreadpoolWork
SubmitThreadpoolWork
CloseThreadpoolWork
GetModuleHandleExW
ReleaseSRWLockExclusive
AcquireSRWLockExclusive
GetProcAddress
QueryPerformanceCounter
QueryPerformanceFrequency
InitOnceComplete
InitOnceBeginInitialize
ReleaseSRWLockShared
AcquireSRWLockShared
TryAcquireSRWLockExclusive
WaitForSingleObjectEx
GetExitCodeThread
InitializeCriticalSectionEx
GetSystemTimeAsFileTime
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
GetCurrentProcessId
InitializeSListHead
TerminateProcess
RtlUnwind
SetLastError
EncodePointer
InitializeCriticalSectionAndSpinCount
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

Sections

.text
Size: 249KB - Virtual size: 249KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 61KB - Virtual size: 60KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 10KB - Virtual size: 29KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 12KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Resubmissions

Sharing

General

Malware Config

Signatures

Files

98834427a5509afe9feea6f9ad5441d9

Headers

DLL Characteristics

File Characteristics

Imports

crypt32

shlwapi

rstrtmgr

mpr

kernel32

user32

advapi32

shell32

Sections

.text Size: 249KB - Virtual size: 249KB

.rdata Size: 61KB - Virtual size: 60KB

.data Size: 10KB - Virtual size: 29KB

.rsrc Size: 6KB - Virtual size: 6KB

.reloc Size: 12KB - Virtual size: 11KB

.text
Size: 249KB - Virtual size: 249KB

.rdata
Size: 61KB - Virtual size: 60KB

.data
Size: 10KB - Virtual size: 29KB

.rsrc
Size: 6KB - Virtual size: 6KB

.reloc
Size: 12KB - Virtual size: 11KB