2024-03-02_57075198c87ac0e2936355d2736b1164_cryptolocker

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General

Target
2024-03-02_57075198c87ac0e2936355d2736b1164_cryptolocker
Size 404KB
Sample240302-vcvn8afe76
SHA256 17849d3bf40f1d6833c538664ac843f728aba013c965e3ccb38b273c5f5c7e79
MD5 57075198c87ac0e2936355d2736b1164
SHA1 059d97a1bbce7eaabfd357348518ee9895e507cb
SHA512 1cc1360eaceb241f4bf3ff5acbd13c1b1ce91945ce002f570ff1d0742206522557f651e4285bcedc38375732aec1fed2b03633fa60227619b5a8f1b7999abf00
SSDEEP 12288:gWkEuCaNT85I2vCMX5l+ZRvjfQ3AoMQ3:gEuCalMpCjfQ3AoMQ3
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-03-02_57075198c87ac0e2936355d2736b1164_cryptolocker

File Explorer

2024-03-02_57075198c87ac0e2936355d2736b1164_cryptolocker

.exe 404KB

2024-03-02_57075198c87ac0e2936355d2736b1164_cryptolocker

IMPHASH 7e8ad4139efc6cbcf31df3bc4b291dd8
SHA256 17849d3bf40f1d6833c538664ac843f728aba013c965e3ccb38b273c5f5c7e79
MD5 57075198c87ac0e2936355d2736b1164
SHA1 059d97a1bbce7eaabfd357348518ee9895e507cb
SHA512 1cc1360eaceb241f4bf3ff5acbd13c1b1ce91945ce002f570ff1d0742206522557f651e4285bcedc38375732aec1fed2b03633fa60227619b5a8f1b7999abf00
SSDEEP 12288:gWkEuCaNT85I2vCMX5l+ZRvjfQ3AoMQ3:gEuCalMpCjfQ3AoMQ3
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

wBFzqqgB

Size

15KB

Virtual Size

14KB

Characteristics

Name

MrylIwQv

Size

512B

Virtual Size

89B

Characteristics

Name

uswzjaBq

Size

19KB

Virtual Size

19KB

Characteristics

Name

oviuozkL

Size

21KB

Virtual Size

21KB

Characteristics

Name

kBYpCXfK

Size

9KB

Virtual Size

9KB

Characteristics

Sharing

General

Malware Config

Signatures

File Explorer

2024-03-02_57075198c87ac0e2936355d2736b1164_cryptolocker

msvcrt

kernel32

user32

advapi32

shell32

uxtheme

gdi32

comctl32

shlwapi

msimg32

winhttp

gdiplus

ole32

crypt32

generic