2024-03-02_a769c781e3748314825f3effbd176b9b_cryptolocker

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General

Target
2024-03-02_a769c781e3748314825f3effbd176b9b_cryptolocker
Size 400KB
Sample240302-1dsh5sab27
SHA256 7160b2b41f1b7d0b6546663586ad8207c13a5e240d23cbedbfc9ba81ac406d1a
MD5 a769c781e3748314825f3effbd176b9b
SHA1 23b605d66164573492da31bcdffccc01fd9d3957
SHA512 8456c3718f529d17e182b865e8c8fb2c00f43abfaa4eabd024bafa6874ddc90a4eb624229ddbad5e9f0e244ff0de107fbef116038cb72fff13f703b46145c536
SSDEEP 6144:VWmw0EuCN0pLWgTO3x5N22vWvLRKKAX5l++SybIvCvgCSng:VWkEuCaNT85I2vCMX5l+ZRv9CD
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-03-02_a769c781e3748314825f3effbd176b9b_cryptolocker

File Explorer

2024-03-02_a769c781e3748314825f3effbd176b9b_cryptolocker

.exe 400KB

2024-03-02_a769c781e3748314825f3effbd176b9b_cryptolocker

IMPHASH 7e8ad4139efc6cbcf31df3bc4b291dd8
SHA256 7160b2b41f1b7d0b6546663586ad8207c13a5e240d23cbedbfc9ba81ac406d1a
MD5 a769c781e3748314825f3effbd176b9b
SHA1 23b605d66164573492da31bcdffccc01fd9d3957
SHA512 8456c3718f529d17e182b865e8c8fb2c00f43abfaa4eabd024bafa6874ddc90a4eb624229ddbad5e9f0e244ff0de107fbef116038cb72fff13f703b46145c536
SSDEEP 6144:VWmw0EuCN0pLWgTO3x5N22vWvLRKKAX5l++SybIvCvgCSng:VWkEuCaNT85I2vCMX5l+ZRv9CD
MD5 SHA1 SHA512 SSDEEP

windows:5 windows x86 arch:x86

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

7680

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

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

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

Name

.text

Size

63KB

Virtual Size

62KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

17KB

Virtual Size

17KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

512B

Virtual Size

3KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rsrc

Size

248KB

Virtual Size

247KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

8KB

Virtual Size

7KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Name

mcwejeeJ

Size

13KB

Virtual Size

13KB

Characteristics

Name

iUwvnsSY

Size

512B

Virtual Size

108B

Characteristics

Name

wcUkppSm

Size

21KB

Virtual Size

20KB

Characteristics

Name

fuXjqWto

Size

4KB

Virtual Size

4KB

Characteristics

Name

vTkuXgya

Size

23KB

Virtual Size

22KB

Characteristics

Sharing

General

Malware Config

Signatures

File Explorer

2024-03-02_a769c781e3748314825f3effbd176b9b_cryptolocker

msvcrt

kernel32

user32

advapi32

shell32

uxtheme

gdi32

comctl32

shlwapi

msimg32

winhttp

gdiplus

ole32

crypt32

generic