cosmu | 2026-08-04_8545257ef6792514561ab35591e52956_elex_rhadamanthys_smoke-loader

General

Target
2026-08-04_8545257ef6792514561ab35591e52956_elex_rhadamanthys_smoke-loader
Size 452KB
Sample260804-g9we5aed63
SHA256 d5b21a277b8307f26e63de043ad47a4d686247a976bb4aa065e3f4bb8d9f9c11
MD5 8545257ef6792514561ab35591e52956
SHA1 7b934ff0ee2d6298947edc42ca9b5f643dc5c940
SHA512 ace82333d0397eda39b33630364de9c2ee2e8a9d9d5f38de801a2aa8f6fdda8ebcf842b7f04e0feaa02dc7cff650960ef60447409d57b993566234b03b28bc28
SSDEEP 6144:mFlKgzelZNQSBQGH/CSpWqTvoAXjiU4bz:BfBQGH6SfroAX+U4
TLSH
T1CAA4BE5D795F86F2D3059A3D4465CBA1C23AFF02D961B107BBC83B0BEE722C74A25261
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

worm cosmu

Malware Config

Signatures

Family: Cosmu
Cosmu is a Windows worm written in C++.
worm cosmu

Detects Cosmu payload 1 IoCs

Cosmu is a worm written in C++.

resource	yara_rule
sample	family_cosmu

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2026-08-04_8545257ef6792514561ab35591e52956_elex_rhadamanthys_smoke-loader

File Explorer

2026-08-04_8545257ef6792514561ab35591e52956_elex_rhadamanthys_smoke-loader

.exe 452KB

2026-08-04_8545257ef6792514561ab35591e52956_elex_rhadamanthys_smoke-loader

IMPHASH 5aa33c577ffd8431ff254de85dee5e7b
SHA256 d5b21a277b8307f26e63de043ad47a4d686247a976bb4aa065e3f4bb8d9f9c11
MD5 8545257ef6792514561ab35591e52956
SHA1 7b934ff0ee2d6298947edc42ca9b5f643dc5c940
SHA512 ace82333d0397eda39b33630364de9c2ee2e8a9d9d5f38de801a2aa8f6fdda8ebcf842b7f04e0feaa02dc7cff650960ef60447409d57b993566234b03b28bc28
SSDEEP 6144:mFlKgzelZNQSBQGH/CSpWqTvoAXjiU4bz:BfBQGH6SfroAX+U4
TLSH
T1CAA4BE5D795F86F2D3059A3D4465CBA1C23AFF02D961B107BBC83B0BEE722C74A25261
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x86 arch:x86

Detects Cosmu payload

Cosmu is a worm written in C++.
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

0

Major OS version

4

Entry point

12335

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_NO_ISOLATION

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_32BIT_MACHINE

PDB paths

f:\workplace\c++\hannibal\release\hannibal.pdb

kernel32

CreateFileA GetFileSize FindResourceA SetFilePointer FreeLibrary LoadResource UpdateResourceA SetFileTime WriteFile GetDriveTypeA SizeofResource GetFileAttributesA ReadFile MultiByteToWideChar FindFirstFileA GetLastError CopyFileA SetFileAttributesA FindClose LockResource BeginUpdateResourceA GetModuleFileNameA FindNextFileA LoadLibraryExA EnumResourceNamesA GetFileTime EndUpdateResourceA WinExec CloseHandle DeleteFileA CompareStringW CompareStringA FlushFileBuffers GetTimeFormatA GetDateFormatA GetSystemTimeAsFileTime GetCommandLineA HeapFree GetVersionExA HeapAlloc GetProcessHeap GetStartupInfoA TerminateProcess GetCurrentProcess UnhandledExceptionFilter SetUnhandledExceptionFilter IsDebuggerPresent GetProcAddress GetModuleHandleA TlsGetValue TlsAlloc TlsSetValue TlsFree InterlockedIncrement SetLastError GetCurrentThreadId InterlockedDecrement GetCPInfo GetACP GetOEMCP Sleep WideCharToMultiByte GetTimeZoneInformation RaiseException ExitProcess GetStdHandle FreeEnvironmentStringsA GetEnvironmentStrings FreeEnvironmentStringsW GetEnvironmentStringsW SetHandleCount GetFileType DeleteCriticalSection HeapDestroy HeapCreate VirtualFree QueryPerformanceCounter GetTickCount GetCurrentProcessId GetConsoleCP GetConsoleMode EnterCriticalSection LeaveCriticalSection LCMapStringA LCMapStringW GetStringTypeA GetStringTypeW GetLocaleInfoA VirtualAlloc HeapReAlloc HeapSize LoadLibraryA InitializeCriticalSection RtlUnwind SetStdHandle WriteConsoleA GetConsoleOutputCP WriteConsoleW SetEnvironmentVariableA

ole32

CoUninitialize CoCreateInstance CoInitialize

Sharing