cosmu | 2026-08-01_590a1553ef9a33c8af3adf7876b2e57a_elex_rhadamanthys_smoke-loader

General

Target
2026-08-01_590a1553ef9a33c8af3adf7876b2e57a_elex_rhadamanthys_smoke-loader
Size 284KB
Sample260802-a2cjqa1cjc
SHA256 2ee75ca9d1cef69daa17df13e1dd498e9a59789e5fb3de42a3252bfaa06d4a4f
MD5 590a1553ef9a33c8af3adf7876b2e57a
SHA1 702588bdcaabe6b19f548a82949a450ba11c3c91
SHA512 33521ed7dc95270754c354af0d27450639b13149aeae04b8f32db512d176d345c832d0d87bb34a2acfbf17068505439c0f0cb11848d23b6b3df06b89fe2d52d4
SSDEEP 6144:HFlKgzelZNQSBQGH/CSpWqTFoAXjiU4bzN:YfBQGH6SfxoAX+U49
TLSH
T1E55402457D93C4B3D0414D3188E68BE19B7F6C137AA6E11BFB9D0B4B1EB13844BAA361
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
2026-08-01_590a1553ef9a33c8af3adf7876b2e57a_elex_rhadamanthys_smoke-loader

File Explorer

2026-08-01_590a1553ef9a33c8af3adf7876b2e57a_elex_rhadamanthys_smoke-loader

.exe 284KB

2026-08-01_590a1553ef9a33c8af3adf7876b2e57a_elex_rhadamanthys_smoke-loader

IMPHASH 5aa33c577ffd8431ff254de85dee5e7b
SHA256 2ee75ca9d1cef69daa17df13e1dd498e9a59789e5fb3de42a3252bfaa06d4a4f
MD5 590a1553ef9a33c8af3adf7876b2e57a
SHA1 702588bdcaabe6b19f548a82949a450ba11c3c91
SHA512 33521ed7dc95270754c354af0d27450639b13149aeae04b8f32db512d176d345c832d0d87bb34a2acfbf17068505439c0f0cb11848d23b6b3df06b89fe2d52d4
SSDEEP 6144:HFlKgzelZNQSBQGH/CSpWqTFoAXjiU4bzN:YfBQGH6SfxoAX+U49
TLSH
T1E55402457D93C4B3D0414D3188E68BE19B7F6C137AA6E11BFB9D0B4B1EB13844BAA361
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