Static task
static1
Behavioral task
behavioral1
Sample
2024-03-02_b220f4e1565e79783d72d20d72794af3_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-02_b220f4e1565e79783d72d20d72794af3_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-02_b220f4e1565e79783d72d20d72794af3_cryptolocker
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Size
395KB
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MD5
b220f4e1565e79783d72d20d72794af3
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SHA1
b7bcdf1f9a967459746cfc77f9d80747a57cdae2
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SHA256
a2d30528b94d53630f0ba976b9c1013b98c2d441c0a851da7b0b09eaa97a04d2
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SHA512
fa8eab59e4115cb90b558b5ca120718d153ecccb1da360f9a8950dc9708fc1f41083a0bc9354ef158fda9ae60ab289aab0ff626370a14afdf6ec0d669cd824a3
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SSDEEP
6144:wWmw0EuCN0pLWgTO3x5N22vWvLRKKAX5l++SybIvChqAIQ3E2:wWkEuCaNT85I2vCMX5l+ZRvQqLQ3E2
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource 2024-03-02_b220f4e1565e79783d72d20d72794af3_cryptolocker
Files
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2024-03-02_b220f4e1565e79783d72d20d72794af3_cryptolocker.exe windows:5 windows x86 arch:x86
7e8ad4139efc6cbcf31df3bc4b291dd8
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
msvcrt
_except_handler3
memcpy
memmove
_vsnprintf
_vsnwprintf
_purecall
memset
kernel32
LoadLibraryW
FreeLibrary
GetProcAddress
WideCharToMultiByte
MultiByteToWideChar
lstrcmpA
GlobalLock
GlobalAlloc
GlobalUnlock
GlobalFree
CreateMutexW
ReleaseMutex
FindResourceExW
LoadResource
SizeofResource
LockResource
CreateProcessW
SetFilePointerEx
FindNextFileW
SystemTimeToFileTime
FileTimeToSystemTime
FileTimeToLocalFileTime
GetSystemTime
GetDateFormatW
GetTimeFormatW
GetCurrentThreadId
HeapReAlloc
HeapAlloc
HeapFree
GetProcessHeap
GetEnvironmentVariableW
CopyFileExW
GetUserDefaultUILanguage
DeleteCriticalSection
FindClose
FindFirstFileW
DeleteFileW
GetFileTime
SetLastError
GetFileSizeEx
FlushFileBuffers
ReadFile
WriteFile
SetFileTime
ResumeThread
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSection
QueryPerformanceCounter
SetFileAttributesW
CreateFileW
GetFileAttributesW
Sleep
GetTickCount
MoveFileExW
ExpandEnvironmentStringsW
GetVolumeInformationW
GetDiskFreeSpaceExW
WaitForMultipleObjects
ResetEvent
GetTempPathW
GetLogicalDrives
GetDriveTypeW
LocalFree
CloseHandle
CreateEventW
GetLastError
GetHandleInformation
SetThreadPriority
GetModuleFileNameW
GetCurrentThread
GetModuleHandleW
SetEvent
GetComputerNameW
WaitForSingleObject
SetErrorMode
GetCommandLineW
ExitProcess
CreateThread
user32
MessageBoxIndirectW
InSendMessage
ClientToScreen
GetWindowLongW
GetClassNameW
GetCaretPos
TrackPopupMenu
AppendMenuW
GetCursorPos
CreatePopupMenu
SetMenuDefaultItem
DestroyMenu
LoadIconW
CloseClipboard
EmptyClipboard
OpenClipboard
SetClipboardData
SystemParametersInfoW
ScrollWindowEx
GetSystemMetrics
UpdateWindow
SetScrollInfo
MessageBoxW
EndPaint
ScreenToClient
GetWindowRect
DrawTextW
GetParent
GetClientRect
IsDialogMessageW
DestroyWindow
BeginPaint
DrawFocusRect
IntersectRect
GetDlgItem
SendMessageW
GetDlgCtrlID
SetWindowTextW
MoveWindow
GetDC
ReleaseDC
CharLowerW
PostQuitMessage
MsgWaitForMultipleObjects
TranslateMessage
PeekMessageW
DispatchMessageW
SetTimer
PostMessageW
SetFocus
RegisterClassExW
FlashWindowEx
InvalidateRect
GetWindowTextW
MonitorFromWindow
SetWindowPos
ShowWindow
GetForegroundWindow
AdjustWindowRectEx
IsWindowVisible
GetMonitorInfoW
DefWindowProcW
DialogBoxParamW
SetWindowLongW
EndDialog
CreateDialogParamW
MonitorFromPoint
UnregisterClassW
SetForegroundWindow
GetKeyState
ReplyMessage
GetScrollInfo
CreateWindowExW
advapi32
CryptAcquireContextW
RegSetValueExW
RegEnumKeyExW
RegFlushKey
CryptSetKeyParam
CryptGetKeyParam
CryptReleaseContext
CryptImportKey
CryptEncrypt
CryptGenKey
CryptDestroyKey
CryptDecrypt
CryptGetHashParam
CryptCreateHash
CryptDestroyHash
CryptHashData
RegCreateKeyExW
RegCloseKey
CryptExportKey
RegQueryValueExW
RegQueryInfoKeyW
RegDeleteKeyW
RegDeleteValueW
RegEnumValueW
RegOpenKeyExW
shell32
SHGetFileInfoW
SHGetFolderPathW
ShellExecuteExW
CommandLineToArgvW
uxtheme
SetWindowTheme
gdi32
GetDeviceCaps
CreateSolidBrush
GetObjectW
CreateCompatibleDC
SelectObject
DeleteObject
SetBkMode
SetBkColor
DeleteDC
SetTextColor
GetObjectA
CreateFontIndirectW
comctl32
InitCommonControlsEx
ord413
ord410
shlwapi
StrCmpW
StrCmpNW
StrCmpIW
PathMatchSpecW
PathRemoveBackslashW
PathAddBackslashW
ord12
PathFindFileNameW
PathRemoveFileSpecW
PathUnquoteSpacesW
StrChrW
PathQuoteSpacesW
msimg32
AlphaBlend
winhttp
WinHttpConnect
WinHttpCloseHandle
WinHttpQueryHeaders
WinHttpWriteData
WinHttpOpenRequest
WinHttpReadData
WinHttpAddRequestHeaders
WinHttpSendRequest
WinHttpReceiveResponse
WinHttpOpen
gdiplus
GdipAlloc
GdipDisposeImage
GdipCreateHBITMAPFromBitmap
GdipCloneImage
GdiplusStartup
GdipDeleteBrush
GdipCreateBitmapFromStream
GdipCreateFontFromLogfontA
GdipSetStringFormatLineAlign
GdipDeleteFont
GdipDeleteGraphics
GdipDrawImageRectI
GdipSetStringFormatAlign
GdipCreateSolidFill
GdipDrawString
GdipCreateFromHDC
GdipSetStringFormatHotkeyPrefix
GdipCreateStringFormat
GdipDeleteStringFormat
GdipCreateFontFromDC
GdipGetImageHeight
GdipGetImageWidth
GdiplusShutdown
GdipFree
GdipCloneBrush
ole32
CoInitializeEx
CoUninitialize
CoTaskMemFree
StringFromGUID2
crypt32
CryptImportPublicKeyInfo
CryptStringToBinaryA
CryptDecodeObjectEx
Sections
.text Size: 63KB - Virtual size: 62KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 17KB - Virtual size: 17KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 512B - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 248KB - Virtual size: 247KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 8KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
MrMLSBtx Size: 1024B - Virtual size: 696B
MHBfsyUy Size: 512B - Virtual size: 83B
AjegMUPb Size: 19KB - Virtual size: 19KB
JRCEucgT Size: 13KB - Virtual size: 12KB
jEvJFxUi Size: 23KB - Virtual size: 22KB