lock5[.]ex | Triage

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General

Target

lock5.ex
Size

422KB
MD5

4420dcaeffbcc230d91d700a523f6870
SHA1

edbb9be975f5146a7348676f3ef4a6418a56eea5
SHA256

07fb00cbae37c156c381339657d6efe08edc222db34d10c7315866e1ac4e64fd
SHA512

2ae40678b4020190c6851d1543f5a38e4eed28099841b3e5f89cfb175d46e2ea55e69d27e74fae2bbedfa4e0821e7bb3eee0c45523b1bc0a88e35ebeead1c82b
SSDEEP

6144:kTqhlztbElkd+s0zyykmkkES0J2txMLVesCjuwptsOXNZcX9PNCFR09KKPOeFhbV:phDdkybr/J2tx2VeFusZXQJhkeFhbb

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
lock5.ex

Files

lock5.ex
.exe windows:6 windows x64 arch:x64

eaed56ae2dbb02ce41d8c9d9a000d696

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB Paths

I:\locker\bin\stub_win_x64_encrypter.pdb

Imports

crypt32

CryptStringToBinaryW
CryptBinaryToStringW

shlwapi

StrStrIW
PathIsUNCW
PathFindExtensionW

rstrtmgr

RmRegisterResources
RmGetList
RmStartSession
RmEndSession
RmShutdown

mpr

WNetGetConnectionW
WNetAddConnection2W

kernel32

FindFirstVolumeW
SetVolumeMountPointW
FindVolumeClose
GetVolumePathNamesForVolumeNameW
DeleteVolumeMountPointW
FindNextVolumeW
GetDriveTypeW
ReadFile
FindFirstFileExW
FindNextFileW
WriteFile
FindClose
CreateFileW
SetFileAttributesW
GetConsoleWindow
lstrcmpiW
SetConsoleTitleW
MoveFileW
SizeofResource
GetCurrentProcess
AssignProcessToJobObject
QueryDosDeviceW
InitializeProcThreadAttributeList
CreatePipe
PeekNamedPipe
WaitForSingleObject
OpenProcess
MultiByteToWideChar
UpdateProcThreadAttribute
LockResource
LoadResource
FindResourceW
CreateProcessW
GetModuleHandleW
WideCharToMultiByte
GetEnvironmentStringsW
GetCPInfo
GetOEMCP
GetACP
IsValidCodePage
SetFilePointerEx
GetFileSizeEx
GetFileAttributesExW
GetExitCodeProcess
GetWindowsDirectoryW
CloseHandle
GetLastError
CreateJobObjectW
SetInformationJobObject
FreeEnvironmentStringsW
SetEnvironmentVariableW
GetProcessHeap
SetStdHandle
GetStringTypeW
FlushFileBuffers
GetConsoleOutputCP
GetConsoleMode
HeapSize
HeapReAlloc
WriteConsoleW
GetLogicalDrives
GetSystemTimes
LocalFree
FormatMessageA
GetLocaleInfoEx
WakeConditionVariable
WakeAllConditionVariable
SleepConditionVariableSRW
GetCurrentThreadId
RtlPcToFileHeader
RaiseException
WaitForSingleObjectEx
Sleep
GetExitCodeThread
GetNativeSystemInfo
IsProcessorFeaturePresent
FreeLibraryWhenCallbackReturns
CreateThreadpoolWork
SubmitThreadpoolWork
CloseThreadpoolWork
GetModuleHandleExW
ReleaseSRWLockExclusive
AcquireSRWLockExclusive
GetProcAddress
QueryPerformanceCounter
QueryPerformanceFrequency
InitOnceComplete
InitOnceBeginInitialize
ReleaseSRWLockShared
AcquireSRWLockShared
TryAcquireSRWLockExclusive
InitializeCriticalSectionEx
GetSystemTimeAsFileTime
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
GetCurrentProcessId
InitializeSListHead
TerminateProcess
RtlUnwindEx
SetLastError
EncodePointer
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
CreateThread
ExitThread
FreeLibraryAndExitThread
ExitProcess
GetModuleFileNameW
GetStdHandle
GetCommandLineA
GetCommandLineW
HeapFree
HeapAlloc
GetFileType
FlsAlloc
FlsGetValue
FlsSetValue
FlsFree
CompareStringW
LCMapStringW

user32

GetForegroundWindow
RegisterWindowMessageW
GetWindowThreadProcessId
ShowWindow
IsWindowVisible
GetAsyncKeyState
GetShellWindow

advapi32

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

shell32

SHEmptyRecycleBinW
SHGetFolderPathW

Sections

.text
Size: 297KB - Virtual size: 296KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 90KB - Virtual size: 89KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 10KB - Virtual size: 32KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 14KB - Virtual size: 14KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 500B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 2KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

eaed56ae2dbb02ce41d8c9d9a000d696

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

crypt32

shlwapi

rstrtmgr

mpr

kernel32

user32

advapi32

shell32

Sections

.text Size: 297KB - Virtual size: 296KB

.rdata Size: 90KB - Virtual size: 89KB

.data Size: 10KB - Virtual size: 32KB

.pdata Size: 14KB - Virtual size: 14KB

_RDATA Size: 512B - Virtual size: 500B

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

.reloc Size: 2KB - Virtual size: 2KB

.text
Size: 297KB - Virtual size: 296KB

.rdata
Size: 90KB - Virtual size: 89KB

.data
Size: 10KB - Virtual size: 32KB

.pdata
Size: 14KB - Virtual size: 14KB

_RDATA
Size: 512B - Virtual size: 500B

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

.reloc
Size: 2KB - Virtual size: 2KB