juko | 2026-08-30_fed048b966d782663e06050bcae4ffac_elex_wannacry

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General

Target
2026-08-30_fed048b966d782663e06050bcae4ffac_elex_wannacry
Size 56KB
Sample260830-3tphjat1ev
SHA256 5ac22c8f916d38662315ba7ee2a937ec4e47f2eef14f90502baea8556e99113f
MD5 fed048b966d782663e06050bcae4ffac
SHA1 2018d497ac99adecddc02f50bfd4810a33a3401d
SHA512 4f7356a8ad42529b9375ad6941ff12f617459c42c228705e9c33e737f9285d90be3e3ed37d68ab3a3e0e9b5073e57cf3929c83a59718cdd9051b83661fe988a5
SSDEEP 1536:pLsF2Kerc64sTiX2IV0DhuD8OKFVG9WGWI:pLy2Kerc64CiGImVuD8OKFE9WBI
TLSH
T1A44319263AE61CD3C15364F0EAE49B308078FD7219279023E794BB9815BEC92DF7199D
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

trojan juko

Malware Config

Signatures

Family: Juko
Juko is a trojan written in C++.
trojan juko

Detects Juko 1 IoCs

resource	yara_rule
sample	family_juko

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2026-08-30_fed048b966d782663e06050bcae4ffac_elex_wannacry

File Explorer

2026-08-30_fed048b966d782663e06050bcae4ffac_elex_wannacry

.exe 56KB

2026-08-30_fed048b966d782663e06050bcae4ffac_elex_wannacry

IMPHASH 170193414cc4abf0ae27dc2a19d74879
SHA256 5ac22c8f916d38662315ba7ee2a937ec4e47f2eef14f90502baea8556e99113f
MD5 fed048b966d782663e06050bcae4ffac
SHA1 2018d497ac99adecddc02f50bfd4810a33a3401d
SHA512 4f7356a8ad42529b9375ad6941ff12f617459c42c228705e9c33e737f9285d90be3e3ed37d68ab3a3e0e9b5073e57cf3929c83a59718cdd9051b83661fe988a5
SSDEEP 1536:pLsF2Kerc64sTiX2IV0DhuD8OKFVG9WGWI:pLy2Kerc64CiGImVuD8OKFE9WBI
TLSH
T1A44319263AE61CD3C15364F0EAE49B308078FD7219279023E794BB9815BEC92DF7199D
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x86 arch:x86

Detects Juko
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

23330

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LINE_NUMS_STRIPPED IMAGE_FILE_LOCAL_SYMS_STRIPPED IMAGE_FILE_32BIT_MACHINE

PDB paths

kernel32

CreateDirectoryW MoveFileW ReadFile SetFilePointer CreateFileW WriteFile GetDriveTypeW GetSystemDirectoryW GetProcAddress GetModuleHandleW GetSystemDefaultLangID GetTickCount GetCurrentProcessId GetComputerNameW FreeLibrary LoadLibraryW GetVersionExW GetCurrentProcess OpenProcess GetVolumeInformationA Process32NextW TerminateProcess Process32FirstW CreateProcessW lstrlenW SetFileTime GetFileSize DeleteFileW Sleep WinExec GetModuleFileNameA MultiByteToWideChar PeekNamedPipe GetStartupInfoW CreatePipe WaitForSingleObject CreateThread RemoveDirectoryW GetTempPathW ExitProcess SetStdHandle DuplicateHandle WideCharToMultiByte SetLastError LoadLibraryA GetModuleHandleA CloseHandle GetModuleFileNameW SetErrorMode FindClose GetLogicalDriveStringsW GetVolumeInformationW GetDiskFreeSpaceExW FindFirstFileW FindNextFileW GetLastError CreateToolhelp32Snapshot GetStartupInfoA

user32

ExitWindowsEx

advapi32

GetTokenInformation RegDeleteValueW RegSetValueExW RegCloseKey LookupPrivilegeValueW AdjustTokenPrivileges OpenProcessToken LookupAccountSidW GetUserNameW RegOpenKeyW

shell32

SHFileOperationW

psapi

EnumProcessModules GetModuleFileNameExW

msvcrt

_controlfp __set_app_type __p__fmode swprintf wcslen wcscpy memset memcpy ??2@YAPAXI@Z wcscmp __CxxFrameHandler _EH_prolog wcscat wcsrchr _wcsnicmp _except_handler3 _wcslwr sprintf strcpy strcmp rand srand strlen time atoi free _stricmp _exit _XcptFilter exit _acmdln __getmainargs _initterm __setusermatherr _adjust_fdiv __p__commode

shlwapi

PathFindFileNameW PathFileExistsW