cosmu | 2026-06-27_b5250366984e99deff58415e00ec59f8_elex_rhadamanthys_smoke-loader

General

Target
2026-06-27_b5250366984e99deff58415e00ec59f8_elex_rhadamanthys_smoke-loader
Size 284KB
Sample260629-d799qact7w
SHA256 a0cdbf06a585fc9d003f2c5e0d5d224d0abbddfc2c2c904f9e2e325364ce6590
MD5 b5250366984e99deff58415e00ec59f8
SHA1 48cd467067c04360bf3736d39f72e6b87cabf539
SHA512 63d3c670a53b59640609e2a2ac50f5cacf26f37726a5334cb5420f8e5013e97bd83bc3c2cb3e8218441584df13c30d7da4850fe00610799b48f633756154b2c1
SSDEEP 6144:8FlKgzelZNQSBQGH/CSpWqT3oAXjiU4bzF:bfBQGH6SfzoAX+U41
TLSH
T1035402457D93C4B3D0414D3188E68BE18B7F6C137AA6E11BFB9D0B4B1EB13844BAA361
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
2026-06-27_b5250366984e99deff58415e00ec59f8_elex_rhadamanthys_smoke-loader

File Explorer

2026-06-27_b5250366984e99deff58415e00ec59f8_elex_rhadamanthys_smoke-loader

.exe 284KB

2026-06-27_b5250366984e99deff58415e00ec59f8_elex_rhadamanthys_smoke-loader

IMPHASH 5aa33c577ffd8431ff254de85dee5e7b
SHA256 a0cdbf06a585fc9d003f2c5e0d5d224d0abbddfc2c2c904f9e2e325364ce6590
MD5 b5250366984e99deff58415e00ec59f8
SHA1 48cd467067c04360bf3736d39f72e6b87cabf539
SHA512 63d3c670a53b59640609e2a2ac50f5cacf26f37726a5334cb5420f8e5013e97bd83bc3c2cb3e8218441584df13c30d7da4850fe00610799b48f633756154b2c1
SSDEEP 6144:8FlKgzelZNQSBQGH/CSpWqT3oAXjiU4bzF:bfBQGH6SfzoAX+U41
TLSH
T1035402457D93C4B3D0414D3188E68BE18B7F6C137AA6E11BFB9D0B4B1EB13844BAA361
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