cosmu | 2026-08-20_943db6f85a60407112e7e3c94a7fdb6d_elex_rhadamanthys_smoke-loader

General

Target
2026-08-20_943db6f85a60407112e7e3c94a7fdb6d_elex_rhadamanthys_smoke-loader
Size 284KB
Sample260821-c77cdsvxex
SHA256 4eca65ef06bf3b2e62372a2280cb55f49bffd2a9766eb85fdec3d4f999d3e889
MD5 943db6f85a60407112e7e3c94a7fdb6d
SHA1 b07a15d300bd6a9d943c8378ecef683033df1197
SHA512 33b7c35b5c757a5e23f7e7d08e269d00e68d16d48117989da74558367308e7bec63655f522a0d22c64b14da25db933f8f84938098ed153524298b39c99199a15
SSDEEP 6144:zFlKgzelZNQSBQGH/CSpWqTRoAXjiU4bzN:cfBQGH6SfNoAX+U49
TLSH
T1C15402457D93C4B3D0414D3188E68BE19B7F6C137AA6E11BFB9D0B4B1FB13844BAA261
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
2026-08-20_943db6f85a60407112e7e3c94a7fdb6d_elex_rhadamanthys_smoke-loader

File Explorer

2026-08-20_943db6f85a60407112e7e3c94a7fdb6d_elex_rhadamanthys_smoke-loader

.exe 284KB

2026-08-20_943db6f85a60407112e7e3c94a7fdb6d_elex_rhadamanthys_smoke-loader

IMPHASH 5aa33c577ffd8431ff254de85dee5e7b
SHA256 4eca65ef06bf3b2e62372a2280cb55f49bffd2a9766eb85fdec3d4f999d3e889
MD5 943db6f85a60407112e7e3c94a7fdb6d
SHA1 b07a15d300bd6a9d943c8378ecef683033df1197
SHA512 33b7c35b5c757a5e23f7e7d08e269d00e68d16d48117989da74558367308e7bec63655f522a0d22c64b14da25db933f8f84938098ed153524298b39c99199a15
SSDEEP 6144:zFlKgzelZNQSBQGH/CSpWqTRoAXjiU4bzN:cfBQGH6SfNoAX+U49
TLSH
T1C15402457D93C4B3D0414D3188E68BE19B7F6C137AA6E11BFB9D0B4B1FB13844BAA261
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