cosmu | 2026-11-01_1802273a643609c0ca25b80ff18d5149_elex_rhadamanthys_smoke-loader

General

Target
2026-11-01_1802273a643609c0ca25b80ff18d5149_elex_rhadamanthys_smoke-loader
Size 326KB
Sample261101-vdq3escf74
SHA256 8d2426fde000e6c17c0d851c442331312f8c4e0ab54f65d3e6e527b52436560b
MD5 1802273a643609c0ca25b80ff18d5149
SHA1 4737ea861194b9a4ea201930a6c205c1dd93e089
SHA512 c7f1ebcae222f2354a6549b828de0ba27d2c4cfe2199e84ca1aca94c7511117deaf744fb9553465e7bafa6edb8a57ed61d077e60faeaff73577d8097137196de
SSDEEP 6144:FFlKgzelZNQSBQGH/CSpWqTvoAXjiU4bz:CfBQGH6SfboAX+U4
TLSH
T1E56401817DA3D8B3D041493188A6CBA1973B6D13AA65D203FB9D0F4B2FB13D49B7A351
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
2026-11-01_1802273a643609c0ca25b80ff18d5149_elex_rhadamanthys_smoke-loader

File Explorer

2026-11-01_1802273a643609c0ca25b80ff18d5149_elex_rhadamanthys_smoke-loader

.exe 326KB

2026-11-01_1802273a643609c0ca25b80ff18d5149_elex_rhadamanthys_smoke-loader

IMPHASH 5aa33c577ffd8431ff254de85dee5e7b
SHA256 8d2426fde000e6c17c0d851c442331312f8c4e0ab54f65d3e6e527b52436560b
MD5 1802273a643609c0ca25b80ff18d5149
SHA1 4737ea861194b9a4ea201930a6c205c1dd93e089
SHA512 c7f1ebcae222f2354a6549b828de0ba27d2c4cfe2199e84ca1aca94c7511117deaf744fb9553465e7bafa6edb8a57ed61d077e60faeaff73577d8097137196de
SSDEEP 6144:FFlKgzelZNQSBQGH/CSpWqTvoAXjiU4bz:CfBQGH6SfboAX+U4
TLSH
T1E56401817DA3D8B3D041493188A6CBA1973B6D13AA65D203FB9D0F4B2FB13D49B7A351
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

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