2024-06-13_89bffa69b9fe9e1803f586c9455ae9b7_avoslocker_cobalt-strike

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General

Target
2024-06-13_89bffa69b9fe9e1803f586c9455ae9b7_avoslocker_cobalt-strike
Size 472KB
Sample240613-e42c3sxgnr
SHA256 5ef21fcc1ad2c9d98f2033300eea8fe57f16ea9089aa1ff10d2d8441586804a6
MD5 89bffa69b9fe9e1803f586c9455ae9b7
SHA1 26f6cd0c2b34c745fb3ea6bd356209d277e0f2e2
SHA512 9577564a40dd9c79f231b8e7cef17411acc357cfc43fd45faf1cd6a6009c427213b4cbdbdb418385094b34022504412eb34e4b67879516e9b389b7a76a532659
SSDEEP 12288:j1vKpgoIWgqAyymyzIunr1a8Fp/teMsDAoauq:5vKCoBlymSDakPspan
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-06-13_89bffa69b9fe9e1803f586c9455ae9b7_avoslocker_cobalt-strike

File Explorer

2024-06-13_89bffa69b9fe9e1803f586c9455ae9b7_avoslocker_cobalt-strike

.exe 472KB

2024-06-13_89bffa69b9fe9e1803f586c9455ae9b7_avoslocker_cobalt-strike

IMPHASH acac4f024915fbce13bcbe214016f740
SHA256 5ef21fcc1ad2c9d98f2033300eea8fe57f16ea9089aa1ff10d2d8441586804a6
MD5 89bffa69b9fe9e1803f586c9455ae9b7
SHA1 26f6cd0c2b34c745fb3ea6bd356209d277e0f2e2
SHA512 9577564a40dd9c79f231b8e7cef17411acc357cfc43fd45faf1cd6a6009c427213b4cbdbdb418385094b34022504412eb34e4b67879516e9b389b7a76a532659
SSDEEP 12288:j1vKpgoIWgqAyymyzIunr1a8Fp/teMsDAoauq:5vKCoBlymSDakPspan
MD5 SHA1 SHA512 SSDEEP

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

94624

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_GUARD_CF IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_32BIT_MACHINE

PDB paths

O:\webex-windows-plugin\output\i386\bin\Release\webex.pdb

kernel32

GetUserGeoID GetUserDefaultLCID SetThreadUILanguage GetThreadUILanguage DecodePointer RaiseException InitializeCriticalSectionEx lstrlenW MultiByteToWideChar WideCharToMultiByte MapViewOfFile UnmapViewOfFile CreateFileMappingA SetLastError LocalFree FormatMessageW WaitForSingleObject Sleep CreateThread TerminateThread GetFileSize ReadFile SetFilePointer GetVersionExW FreeLibrary GetProcAddress LoadLibraryW lstrcpynW GetSystemDefaultLangID CreateProcessA GetNativeSystemInfo SetEvent CreateEventW OpenEventW LCIDToLocaleName GetLocaleInfoEx GetCurrentProcess CreateProcessW IsProcessInJob FindResourceExW FreeResource LoadResource LockResource CreateFileW GetConsoleMode GetGeoInfoA SetFilePointerEx GetLocalTime SetStdHandle GetProcessHeap FreeEnvironmentStringsW GetEnvironmentStringsW GetCommandLineW GetOEMCP GetACP IsValidCodePage FindNextFileW FindFirstFileExW FindClose HeapReAlloc GetFileType HeapAlloc HeapFree GetStdHandle GetModuleFileNameW GetModuleHandleExW ExitProcess GetFileAttributesExW QueryPerformanceFrequency LoadLibraryExW RtlUnwind OutputDebugStringW WriteConsoleW InitializeSListHead QueryPerformanceCounter GetStartupInfoW IsDebuggerPresent WaitForSingleObjectEx ResetEvent IsProcessorFeaturePresent TerminateProcess SetUnhandledExceptionFilter UnhandledExceptionFilter GetStringTypeW LCMapStringW GetModuleHandleW GetModuleFileNameA GetSystemTimeAsFileTime CreateMutexW GetLastError GetTempFileNameA GetConsoleOutputCP GetCommandLineA TlsFree TlsSetValue TlsGetValue GetCurrentThreadId GetCurrentProcessId DeleteCriticalSection LeaveCriticalSection EnterCriticalSection InitializeCriticalSection CloseHandle GetTempPathA WriteFile FlushFileBuffers CreateFileA HeapSize SetDefaultDllDirectories GetSystemInfo VirtualProtect VirtualQuery LoadLibraryExA EncodePointer GetCPInfo InitializeCriticalSectionAndSpinCount TlsAlloc

user32

LoadImageW GetClientRect GetWindowTextW DrawTextW DialogBoxParamW ChangeWindowMessageFilterEx LoadIconW LoadCursorW GetWindowThreadProcessId SetWindowLongW GetWindowLongW SetCursor GetWindowRect SetWindowTextW SetWindowTextA SetPropW SetPropA SetForegroundWindow GetForegroundWindow SetActiveWindow UpdateWindow KillTimer SetTimer SetFocus DefDlgProcW GetDlgItem CreateDialogParamW BringWindowToTop IsWindowVisible SetWindowPos ShowWindow DestroyWindow CreateWindowExW RegisterClassW AttachThreadInput SendMessageW FindWindowExA GetDesktopWindow WaitForInputIdle GetMonitorInfoW MonitorFromPoint GetCursorPos ReleaseDC GetDC PostQuitMessage PostMessageW LoadStringW DispatchMessageW TranslateMessage GetMessageW MessageBoxExW

gdi32

SelectObject GetTextExtentPoint32W GetStockObject DeleteObject GetDeviceCaps CreateFontIndirectW SetTextColor

shell32

SHGetFolderPathA ShellExecuteW

advapi32

CryptDestroyHash CryptReleaseContext RegQueryValueExW RegOpenKeyExW RegCloseKey ConvertStringSecurityDescriptorToSecurityDescriptorW CryptAcquireContextW CryptHashData CryptCreateHash CryptGetHashParam

comctl32

InitCommonControlsEx

Name

.text

Size

184KB

Virtual Size

183KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

73KB

Virtual Size

73KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

8KB

Virtual Size

12KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.didat

Size

512B

Virtual Size

76B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.tls

Size

512B

Virtual Size

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rsrc

Size

191KB

Virtual Size

191KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

12KB

Virtual Size

12KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

2024-06-13_89bffa69b9fe9e1803f586c9455ae9b7_avoslocker_cobalt-strike

kernel32

user32

gdi32

shell32

advapi32

comctl32

generic