cosmu | 2026-10-29_20d62b3721d334312d0aff7baf4ed4a7_elex_rhadamanthys_smoke-loader

General

Target
2026-10-29_20d62b3721d334312d0aff7baf4ed4a7_elex_rhadamanthys_smoke-loader
Size 1.5MB
Sample261029-tv7aasbf68
SHA256 d63d8f1ee9280f2b6ab6a80d74ff8fa1b256b3e98a461a6196923794c1852bf5
MD5 20d62b3721d334312d0aff7baf4ed4a7
SHA1 295e0c6dc9b17091b4e13bb28fbc28dd886425b1
SHA512 375b181f07d0d8b8efbf9259abe5463c93c50deb745e81af04858a0e470be6b812b7bc638f79ab5cad72c22ce8429543f5cc9547f5e90ca25cb0d0a01c2c7639
SSDEEP 6144:KFlKgzelZNQSBQGH/CSpWqTzoAXjiU4bz:NfBQGH6SffoAX+U4
TLSH
T1B475F1917EA2D8B3C4429A3148A68F6197377D139A65D203B7AD1F4B2F713D09B7A302
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
2026-10-29_20d62b3721d334312d0aff7baf4ed4a7_elex_rhadamanthys_smoke-loader

File Explorer

2026-10-29_20d62b3721d334312d0aff7baf4ed4a7_elex_rhadamanthys_smoke-loader

.exe 1.5MB

2026-10-29_20d62b3721d334312d0aff7baf4ed4a7_elex_rhadamanthys_smoke-loader

IMPHASH 5aa33c577ffd8431ff254de85dee5e7b
SHA256 d63d8f1ee9280f2b6ab6a80d74ff8fa1b256b3e98a461a6196923794c1852bf5
MD5 20d62b3721d334312d0aff7baf4ed4a7
SHA1 295e0c6dc9b17091b4e13bb28fbc28dd886425b1
SHA512 375b181f07d0d8b8efbf9259abe5463c93c50deb745e81af04858a0e470be6b812b7bc638f79ab5cad72c22ce8429543f5cc9547f5e90ca25cb0d0a01c2c7639
SSDEEP 6144:KFlKgzelZNQSBQGH/CSpWqTzoAXjiU4bz:NfBQGH6SffoAX+U4
TLSH
T1B475F1917EA2D8B3C4429A3148A68F6197377D139A65D203B7AD1F4B2F713D09B7A302
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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