cosmu | 2026-11-03_575555b692963869a289f2af20068f96_elex_rhadamanthys_smoke-loader

General

Target
2026-11-03_575555b692963869a289f2af20068f96_elex_rhadamanthys_smoke-loader
Size 336KB
Sample261104-yt3ypsc16w
SHA256 bed45a597defaa3e9684847533f825b4e7d13936b95b7923ddeb26b552ae570d
MD5 575555b692963869a289f2af20068f96
SHA1 4f5c678ce29ebca12ac9d367dfcc0da52f540651
SHA512 59118aefb5e16811f18c92d59d6b91a985d6f9e58ce6fe9930b2d86dd848445041b8f894dbb892f03ecf65385ea337fc2fe823fbe72079613c1134fc09963496
SSDEEP 6144:aFlKgzelZNQSBQGH/CSpWqT0oAXjiU4bz:9fBQGH6SfgoAX+U4
TLSH
T17F7402457D93C4B3D0414D3188E68BE18B7F6C137AA6E11BFB9D0B4B1EB13884BA6671
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
2026-11-03_575555b692963869a289f2af20068f96_elex_rhadamanthys_smoke-loader

File Explorer

2026-11-03_575555b692963869a289f2af20068f96_elex_rhadamanthys_smoke-loader

.exe 336KB

2026-11-03_575555b692963869a289f2af20068f96_elex_rhadamanthys_smoke-loader

IMPHASH 5aa33c577ffd8431ff254de85dee5e7b
SHA256 bed45a597defaa3e9684847533f825b4e7d13936b95b7923ddeb26b552ae570d
MD5 575555b692963869a289f2af20068f96
SHA1 4f5c678ce29ebca12ac9d367dfcc0da52f540651
SHA512 59118aefb5e16811f18c92d59d6b91a985d6f9e58ce6fe9930b2d86dd848445041b8f894dbb892f03ecf65385ea337fc2fe823fbe72079613c1134fc09963496
SSDEEP 6144:aFlKgzelZNQSBQGH/CSpWqT0oAXjiU4bz:9fBQGH6SfgoAX+U4
TLSH
T17F7402457D93C4B3D0414D3188E68BE18B7F6C137AA6E11BFB9D0B4B1EB13884BA6671
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