D:\Education\locker\bin\stub_win_x86_decrypter.pdb
Behavioral task
behavioral1
Sample
9c5c1dc70479d5839604a61f5849dee0fc09075d220c07e28343fa6d49cdb7d7.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
9c5c1dc70479d5839604a61f5849dee0fc09075d220c07e28343fa6d49cdb7d7.exe
Resource
win10v2004-20240226-en
General
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Target
9c5c1dc70479d5839604a61f5849dee0fc09075d220c07e28343fa6d49cdb7d7.sample
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Size
277KB
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MD5
d037f5c167b01849d267696695a919ef
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SHA1
457ae227d1b63f295afbe18b539ff3b258f44a32
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SHA256
9c5c1dc70479d5839604a61f5849dee0fc09075d220c07e28343fa6d49cdb7d7
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SHA512
dcfb23c34be7688c292376c605b38eab3087fccd42b3dcd1708062dfee63e972c01107db505c90dc4db2f982bb5ea54fe2f9df9227e87b996a0346d0ea4c9a21
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SSDEEP
6144:6Z1gm4z+Rp4PCL8YM6c2G/FtmUPvo39UPdwNN4:6l4qnM6c26s39jNN4
Malware Config
Signatures
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MedusaLocker payload 1 IoCs
Processes:
resource yara_rule sample family_medusalocker -
Medusalocker family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource 9c5c1dc70479d5839604a61f5849dee0fc09075d220c07e28343fa6d49cdb7d7.sample
Files
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9c5c1dc70479d5839604a61f5849dee0fc09075d220c07e28343fa6d49cdb7d7.sample.exe windows:6 windows x86 arch:x86
979e883220a6bc4d790e8029de6a2531
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
PDB Paths
Imports
crypt32
CryptStringToBinaryW
shlwapi
PathIsUNCW
PathFindExtensionW
StrStrIW
mpr
WNetGetConnectionW
WNetAddConnection2W
kernel32
GetLogicalDrives
FindFirstVolumeW
SetVolumeMountPointW
FindVolumeClose
GetVolumePathNamesForVolumeNameW
DeleteVolumeMountPointW
FindNextVolumeW
GetDriveTypeW
ReadFile
QueryThreadpoolStackInformation
CloseThreadpool
FindFirstFileExW
FindNextFileW
WriteFile
SetEndOfFile
FindClose
CreateFileW
CloseThreadpoolCleanupGroup
CloseThreadpoolCleanupGroupMembers
SetFilePointerEx
GetConsoleWindow
lstrcmpiW
SetConsoleTitleW
GetWindowsDirectoryW
SizeofResource
GetCurrentProcess
InitializeProcThreadAttributeList
WaitForSingleObject
OpenProcess
MultiByteToWideChar
UpdateProcThreadAttribute
LockResource
LoadResource
FindResourceW
CreateProcessW
GetModuleHandleW
WideCharToMultiByte
GetEnvironmentStringsW
GetCPInfo
GetOEMCP
GetACP
IsValidCodePage
GetFileSizeEx
GetFileAttributesExW
GetExitCodeProcess
CloseHandle
GetLastError
CreateJobObjectW
SetInformationJobObject
FreeEnvironmentStringsW
SetEnvironmentVariableW
GetProcessHeap
SetStdHandle
GetStringTypeW
FlushFileBuffers
GetConsoleOutputCP
GetConsoleMode
HeapSize
HeapReAlloc
DecodePointer
QueryDosDeviceW
MoveFileW
LocalFree
FormatMessageA
GetLocaleInfoEx
WaitForSingleObjectEx
Sleep
GetCurrentThreadId
GetExitCodeThread
RaiseException
ReleaseSRWLockExclusive
AcquireSRWLockExclusive
WakeAllConditionVariable
SleepConditionVariableSRW
GetProcAddress
QueryPerformanceCounter
QueryPerformanceFrequency
InitializeCriticalSectionEx
GetSystemTimeAsFileTime
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
SetEvent
ResetEvent
CreateEventW
IsProcessorFeaturePresent
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
GetCurrentProcessId
InitializeSListHead
TerminateProcess
RtlUnwind
SetLastError
EncodePointer
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
CreateThread
ExitThread
FreeLibraryAndExitThread
GetModuleHandleExW
ExitProcess
GetModuleFileNameW
GetStdHandle
GetCommandLineA
GetCommandLineW
HeapFree
HeapAlloc
GetFileType
CompareStringW
LCMapStringW
WriteConsoleW
user32
GetWindowThreadProcessId
GetAsyncKeyState
RegisterWindowMessageW
ShowWindow
IsWindowVisible
GetShellWindow
advapi32
RegSetValueExW
OpenProcessToken
GetTokenInformation
CryptDestroyKey
CryptGetKeyParam
CryptAcquireContextW
CryptDecrypt
CryptImportKey
CryptReleaseContext
RegCloseKey
RegCreateKeyExW
Sections
.text Size: 209KB - Virtual size: 209KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 51KB - Virtual size: 51KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 23KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 2KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 9KB - Virtual size: 9KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ