cosmu | 2026-07-28_6659a6a78fd72cb15ecafc541961bf13_elex_rhadamanthys_smoke-loader

General

Target
2026-07-28_6659a6a78fd72cb15ecafc541961bf13_elex_rhadamanthys_smoke-loader
Size 284KB
Sample260729-bfacxa1dkc
SHA256 de31adb36b1b318a512037a85616d652e21f401fa1f6d1f23def8c1f7d95885f
MD5 6659a6a78fd72cb15ecafc541961bf13
SHA1 85c659afe17ac54be46d3391ac4ac85b45a38ecb
SHA512 7a21d8bbd3237ca2effa72d4253f9f8a360cf0ae580925b90d07ff16aa64943c253812fc6a584cee6e670a1c8aa11a63668a9ce5cd187c31241be8f0268d389d
SSDEEP 6144:dFlKgzelZNQSBQGH/CSpWqTfoAXjiU4bz1:6fBQGH6SfToAX+U4F
TLSH
T1B45402457D93C4B3D0414D3188E68BE19B7F6C137AA6E11BFB9D0B4B1EB13844BAA361
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
2026-07-28_6659a6a78fd72cb15ecafc541961bf13_elex_rhadamanthys_smoke-loader

File Explorer

2026-07-28_6659a6a78fd72cb15ecafc541961bf13_elex_rhadamanthys_smoke-loader

.exe 284KB

2026-07-28_6659a6a78fd72cb15ecafc541961bf13_elex_rhadamanthys_smoke-loader

IMPHASH 5aa33c577ffd8431ff254de85dee5e7b
SHA256 de31adb36b1b318a512037a85616d652e21f401fa1f6d1f23def8c1f7d95885f
MD5 6659a6a78fd72cb15ecafc541961bf13
SHA1 85c659afe17ac54be46d3391ac4ac85b45a38ecb
SHA512 7a21d8bbd3237ca2effa72d4253f9f8a360cf0ae580925b90d07ff16aa64943c253812fc6a584cee6e670a1c8aa11a63668a9ce5cd187c31241be8f0268d389d
SSDEEP 6144:dFlKgzelZNQSBQGH/CSpWqTfoAXjiU4bz1:6fBQGH6SfToAX+U4F
TLSH
T1B45402457D93C4B3D0414D3188E68BE19B7F6C137AA6E11BFB9D0B4B1EB13844BAA361
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