cosmu | 2026-07-27_79237a4f2f25ccef0e9146e0ba7fb557_elex_rhadamanthys_smoke-loader

General

Target
2026-07-27_79237a4f2f25ccef0e9146e0ba7fb557_elex_rhadamanthys_smoke-loader
Size 344KB
Sample260727-ys1rysda45
SHA256 394cdb429460b918f6f5ae096ae98e57ba149f0cbf07f25fef4d9068effd83ab
MD5 79237a4f2f25ccef0e9146e0ba7fb557
SHA1 2660df7a4923fe0935634a34eaa39ebc0bedccd9
SHA512 ba1da0887d6609e9dc0450c6005988cdaab5018b23c9dffa80b5f82665497d86b29ff2fb9b5609c4844e9b0d0bbb3cd28ee1b4590303a1b828568c6c74829ba9
SSDEEP 6144:JFlKgzelZNQSBQGH/CSpWqT9w7oAXjiU4bz:+fBQGH6Sf27oAX+U4
TLSH
T1C574E0403A9ECBB2D3C249318C6EFAA157767C2F9B65D133F7983B4F1E712845A66201
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
2026-07-27_79237a4f2f25ccef0e9146e0ba7fb557_elex_rhadamanthys_smoke-loader

File Explorer

2026-07-27_79237a4f2f25ccef0e9146e0ba7fb557_elex_rhadamanthys_smoke-loader

.exe 344KB

2026-07-27_79237a4f2f25ccef0e9146e0ba7fb557_elex_rhadamanthys_smoke-loader

IMPHASH 5aa33c577ffd8431ff254de85dee5e7b
SHA256 394cdb429460b918f6f5ae096ae98e57ba149f0cbf07f25fef4d9068effd83ab
MD5 79237a4f2f25ccef0e9146e0ba7fb557
SHA1 2660df7a4923fe0935634a34eaa39ebc0bedccd9
SHA512 ba1da0887d6609e9dc0450c6005988cdaab5018b23c9dffa80b5f82665497d86b29ff2fb9b5609c4844e9b0d0bbb3cd28ee1b4590303a1b828568c6c74829ba9
SSDEEP 6144:JFlKgzelZNQSBQGH/CSpWqT9w7oAXjiU4bz:+fBQGH6Sf27oAX+U4
TLSH
T1C574E0403A9ECBB2D3C249318C6EFAA157767C2F9B65D133F7983B4F1E712845A66201
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