cosmu | 2026-07-30_6457e6b1add289542b56ecdbc4f40db4_elex_rhadamanthys_smoke-loader

General

Target
2026-07-30_6457e6b1add289542b56ecdbc4f40db4_elex_rhadamanthys_smoke-loader
Size 288KB
Sample260730-v512pstcph
SHA256 f4e6f263af5965ea6f016f335cceb0fc1a0e20f9d689607cf125fd18663b3910
MD5 6457e6b1add289542b56ecdbc4f40db4
SHA1 fb93ca002dbda05252a1064c86d50ae105b51be8
SHA512 4f2704c3b27308dfab6755d6730308d16113eee4631cd2f32ea35c55390f9198fa26adecbdc2d53ce06fcee7eaf3b171775c3a90c65014770cdbd75ad9637aa7
SSDEEP 6144:LFlKgzelZNQSBQGH/CSpWqTsoAXjiU4bz1:0fBQGH6SfwoAX+U4F
TLSH
T15E5401817AA2D8B3C4429A3148A78F6197377D139A65D203B7AD1F4B2F713D09B7A302
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
2026-07-30_6457e6b1add289542b56ecdbc4f40db4_elex_rhadamanthys_smoke-loader

File Explorer

2026-07-30_6457e6b1add289542b56ecdbc4f40db4_elex_rhadamanthys_smoke-loader

.exe 288KB

2026-07-30_6457e6b1add289542b56ecdbc4f40db4_elex_rhadamanthys_smoke-loader

IMPHASH 5aa33c577ffd8431ff254de85dee5e7b
SHA256 f4e6f263af5965ea6f016f335cceb0fc1a0e20f9d689607cf125fd18663b3910
MD5 6457e6b1add289542b56ecdbc4f40db4
SHA1 fb93ca002dbda05252a1064c86d50ae105b51be8
SHA512 4f2704c3b27308dfab6755d6730308d16113eee4631cd2f32ea35c55390f9198fa26adecbdc2d53ce06fcee7eaf3b171775c3a90c65014770cdbd75ad9637aa7
SSDEEP 6144:LFlKgzelZNQSBQGH/CSpWqTsoAXjiU4bz1:0fBQGH6SfwoAX+U4F
TLSH
T15E5401817AA2D8B3C4429A3148A78F6197377D139A65D203B7AD1F4B2F713D09B7A302
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