cosmu | 2026-08-13_940ed95c17793f27532e6b738dcc0e1b_elex_rhadamanthys_smoke-loader

General

Target
2026-08-13_940ed95c17793f27532e6b738dcc0e1b_elex_rhadamanthys_smoke-loader
Size 284KB
Sample260813-esae8aar8s
SHA256 7b481b691e26cd9467d750345cab46f3ae010ffff3507560b93dba6e14afd8a3
MD5 940ed95c17793f27532e6b738dcc0e1b
SHA1 fde2c5413f23d65e3fdccc65703b5022314e9e21
SHA512 9d82f48b0398ffe4072e59643d29b5e56fb4634862d873c61b91393436cfc2941ff3ec874953b363fee897a3902aeda1e890ca00ca6126c45b4edaf8c2e99325
SSDEEP 6144:AFlKgzelZNQSBQGH/CSpWqTwoAXjiU4bzF:3fBQGH6Sf0oAX+U41
TLSH
T1AC5402457D93C4B3D0414D3188E68BE18B7F6C137AA6E11BFB5D0B4B1EB13844BAA361
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
2026-08-13_940ed95c17793f27532e6b738dcc0e1b_elex_rhadamanthys_smoke-loader

File Explorer

2026-08-13_940ed95c17793f27532e6b738dcc0e1b_elex_rhadamanthys_smoke-loader

.exe 284KB

2026-08-13_940ed95c17793f27532e6b738dcc0e1b_elex_rhadamanthys_smoke-loader

IMPHASH 5aa33c577ffd8431ff254de85dee5e7b
SHA256 7b481b691e26cd9467d750345cab46f3ae010ffff3507560b93dba6e14afd8a3
MD5 940ed95c17793f27532e6b738dcc0e1b
SHA1 fde2c5413f23d65e3fdccc65703b5022314e9e21
SHA512 9d82f48b0398ffe4072e59643d29b5e56fb4634862d873c61b91393436cfc2941ff3ec874953b363fee897a3902aeda1e890ca00ca6126c45b4edaf8c2e99325
SSDEEP 6144:AFlKgzelZNQSBQGH/CSpWqTwoAXjiU4bzF:3fBQGH6Sf0oAX+U41
TLSH
T1AC5402457D93C4B3D0414D3188E68BE18B7F6C137AA6E11BFB5D0B4B1EB13844BAA361
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