cosmu | 2026-10-19_371eff5e24c6332e28a336c4ebed6cda_elex_rhadamanthys_smoke-loader

General

Target
2026-10-19_371eff5e24c6332e28a336c4ebed6cda_elex_rhadamanthys_smoke-loader
Size 320KB
Sample261020-3frezabs8k
SHA256 eeb37ec9c1d432e2c48d9421d9582d3d51d2ff7226f7f60d5d8a14514cd8a9af
MD5 371eff5e24c6332e28a336c4ebed6cda
SHA1 1d866d6b084690d28080b670e321d8bd96810f5c
SHA512 b17a67b42e412c4f6c63aac2cbe1013b495994acdad0dbab806dd2e6cbbaa7c3ec02338e0b3241fb0e074d98106294ba0a0b14037f8d857fe80733d1f8209f60
SSDEEP 6144:WFlKgzelZNQSBQGH/CSpWqTLoAXjiU4bz:RfBQGH6SfvoAX+U4
TLSH
T1B56402457D93C4B3D0414D3188E68BE14B7F6C137AA6E11BFB9D0B4B1EB13884BAA761
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
2026-10-19_371eff5e24c6332e28a336c4ebed6cda_elex_rhadamanthys_smoke-loader

File Explorer

2026-10-19_371eff5e24c6332e28a336c4ebed6cda_elex_rhadamanthys_smoke-loader

.exe 320KB

2026-10-19_371eff5e24c6332e28a336c4ebed6cda_elex_rhadamanthys_smoke-loader

IMPHASH 5aa33c577ffd8431ff254de85dee5e7b
SHA256 eeb37ec9c1d432e2c48d9421d9582d3d51d2ff7226f7f60d5d8a14514cd8a9af
MD5 371eff5e24c6332e28a336c4ebed6cda
SHA1 1d866d6b084690d28080b670e321d8bd96810f5c
SHA512 b17a67b42e412c4f6c63aac2cbe1013b495994acdad0dbab806dd2e6cbbaa7c3ec02338e0b3241fb0e074d98106294ba0a0b14037f8d857fe80733d1f8209f60
SSDEEP 6144:WFlKgzelZNQSBQGH/CSpWqTLoAXjiU4bz:RfBQGH6SfvoAX+U4
TLSH
T1B56402457D93C4B3D0414D3188E68BE14B7F6C137AA6E11BFB9D0B4B1EB13884BAA761
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