cosmu | 2026-08-23_99b8d961eb97a386e7008cb866740295_elex_rhadamanthys_smoke-loader

General

Target
2026-08-23_99b8d961eb97a386e7008cb866740295_elex_rhadamanthys_smoke-loader
Size 320KB
Sample260824-evtlwasgqa
SHA256 3bf56a78cc1397c7536c6d3a78e181beddb60f34dc37845a29f638bf92502e89
MD5 99b8d961eb97a386e7008cb866740295
SHA1 cff01467b9170b739b489cd72dc0e3f019d8b816
SHA512 ae2162ea71c7b2d9d3dcd0d4515fb9386fbaec623f7c667ff799745bdc42a5ebd7c2f17de9083f3ec2dabd44e7d6143a079a5a811dd73e5a97054afee5634e54
SSDEEP 6144:/FlKgzelZNQSBQGH/CSpWqT0oAXjiU4bz:wfBQGH6SfgoAX+U4
TLSH
T1C06402457D93C4B3D0414D3188E68BE19B7F6C137AA6E11BFB9D0B4B1EB13884BA6271
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
2026-08-23_99b8d961eb97a386e7008cb866740295_elex_rhadamanthys_smoke-loader

File Explorer

2026-08-23_99b8d961eb97a386e7008cb866740295_elex_rhadamanthys_smoke-loader

.exe 320KB

2026-08-23_99b8d961eb97a386e7008cb866740295_elex_rhadamanthys_smoke-loader

IMPHASH 5aa33c577ffd8431ff254de85dee5e7b
SHA256 3bf56a78cc1397c7536c6d3a78e181beddb60f34dc37845a29f638bf92502e89
MD5 99b8d961eb97a386e7008cb866740295
SHA1 cff01467b9170b739b489cd72dc0e3f019d8b816
SHA512 ae2162ea71c7b2d9d3dcd0d4515fb9386fbaec623f7c667ff799745bdc42a5ebd7c2f17de9083f3ec2dabd44e7d6143a079a5a811dd73e5a97054afee5634e54
SSDEEP 6144:/FlKgzelZNQSBQGH/CSpWqT0oAXjiU4bz:wfBQGH6SfgoAX+U4
TLSH
T1C06402457D93C4B3D0414D3188E68BE19B7F6C137AA6E11BFB9D0B4B1EB13884BA6271
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