cosmu | 2026-08-03_5ffcf771d589e631ed2ee0ca1bffe135_elex_rhadamanthys_smoke-loader

General

Target
2026-08-03_5ffcf771d589e631ed2ee0ca1bffe135_elex_rhadamanthys_smoke-loader
Size 288KB
Sample260804-dcymfaer2x
SHA256 5565fd3eceb02b11eab4a5251375312c55a3c6215c4578d2ea565dfd74a54dab
MD5 5ffcf771d589e631ed2ee0ca1bffe135
SHA1 42e19962f02cc213b18468b0ffe54782f247b4c9
SHA512 106106e852007b4c0847e6c4dbb1298531b6b2212b914bebea69ebc951cb9f164a7d7e69b2f5d41efdf4baabb5a09c3bba0f4427c01dab0eddba7f451e092e01
SSDEEP 6144:VFlKgzelZNQSBQGH/CSpWqTtoAXjiU4bzF:yfBQGH6SfRoAX+U41
TLSH
T1995401917DA2D8B3C0419A3148A6CBA197376D139A65D203FBAD1F4B2F713D49B7B302
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
2026-08-03_5ffcf771d589e631ed2ee0ca1bffe135_elex_rhadamanthys_smoke-loader

File Explorer

2026-08-03_5ffcf771d589e631ed2ee0ca1bffe135_elex_rhadamanthys_smoke-loader

.exe 288KB

2026-08-03_5ffcf771d589e631ed2ee0ca1bffe135_elex_rhadamanthys_smoke-loader

IMPHASH 5aa33c577ffd8431ff254de85dee5e7b
SHA256 5565fd3eceb02b11eab4a5251375312c55a3c6215c4578d2ea565dfd74a54dab
MD5 5ffcf771d589e631ed2ee0ca1bffe135
SHA1 42e19962f02cc213b18468b0ffe54782f247b4c9
SHA512 106106e852007b4c0847e6c4dbb1298531b6b2212b914bebea69ebc951cb9f164a7d7e69b2f5d41efdf4baabb5a09c3bba0f4427c01dab0eddba7f451e092e01
SSDEEP 6144:VFlKgzelZNQSBQGH/CSpWqTtoAXjiU4bzF:yfBQGH6SfRoAX+U41
TLSH
T1995401917DA2D8B3C0419A3148A6CBA197376D139A65D203FBAD1F4B2F713D49B7B302
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