cosmu | 2026-07-20_672584f03d311d6e0b3ee0db587c9c76_elex_rhadamanthys_smoke-loader

General

Target
2026-07-20_672584f03d311d6e0b3ee0db587c9c76_elex_rhadamanthys_smoke-loader
Size 335KB
Sample260720-nvmm1agy2j
SHA256 03eacea8f02e68db85d3f759f13694fb949217c83f702cd4a3392ea98d299bf2
MD5 672584f03d311d6e0b3ee0db587c9c76
SHA1 195efd5bdf04c32941d6747e7c9616fa8e925bea
SHA512 4591d9d4bc12ce8f614c2e32270ec4f5530d47ee10f9f9ae3c28792c6f14ac776155a82945c0288cdcde6bd08680a252dfc4e914115836277c4c0c32ef2288f8
SSDEEP 6144:RFlKgzelZNQSBQGH/CSpWqT9w7oAXjiU4bz:GfBQGH6Sf27oAX+U4
TLSH
T18374E0403A9ECBB2D3C249318C6EFAA157767C2F9B65D133F7983B0F1E712845A66201
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
2026-07-20_672584f03d311d6e0b3ee0db587c9c76_elex_rhadamanthys_smoke-loader

File Explorer

2026-07-20_672584f03d311d6e0b3ee0db587c9c76_elex_rhadamanthys_smoke-loader

.exe 335KB

2026-07-20_672584f03d311d6e0b3ee0db587c9c76_elex_rhadamanthys_smoke-loader

IMPHASH 5aa33c577ffd8431ff254de85dee5e7b
SHA256 03eacea8f02e68db85d3f759f13694fb949217c83f702cd4a3392ea98d299bf2
MD5 672584f03d311d6e0b3ee0db587c9c76
SHA1 195efd5bdf04c32941d6747e7c9616fa8e925bea
SHA512 4591d9d4bc12ce8f614c2e32270ec4f5530d47ee10f9f9ae3c28792c6f14ac776155a82945c0288cdcde6bd08680a252dfc4e914115836277c4c0c32ef2288f8
SSDEEP 6144:RFlKgzelZNQSBQGH/CSpWqT9w7oAXjiU4bz:GfBQGH6Sf27oAX+U4
TLSH
T18374E0403A9ECBB2D3C249318C6EFAA157767C2F9B65D133F7983B0F1E712845A66201
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