juko | 2026-05-31_cc778faaa641a0982f030911a0173edb_elex_wannacry

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General

Target
2026-05-31_cc778faaa641a0982f030911a0173edb_elex_wannacry
Size 49KB
Sample260531-hydavaby2z
SHA256 d2c1900536447ea6be23d0389d5ac3c56362a4923e47e80e8ab8b310aee2b9ec
MD5 cc778faaa641a0982f030911a0173edb
SHA1 be51200adbb8aa21d61845c50a934cdafdb0ef6d
SHA512 8d4551582fb591c3652b6ef4ee3f37d7371389ebbffae76b951345b48510d09e6b679e557059f0127013c725163875840d75c8623b50e66b88b990b20e8068ea
SSDEEP 1536:VLsF2Kerc64sTiX2IV0DhuD4p4kojVR6h2o:VLy2Kerc64CiGImVucp4kojWh2o
TLSH
T1DA334B0A3BD550C2D56205B0EDAA0F35933BEC391127A75EA780765A1C72D6BCF30E9E
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
2026-05-31_cc778faaa641a0982f030911a0173edb_elex_wannacry

File Explorer

2026-05-31_cc778faaa641a0982f030911a0173edb_elex_wannacry

.exe 49KB

2026-05-31_cc778faaa641a0982f030911a0173edb_elex_wannacry

IMPHASH 170193414cc4abf0ae27dc2a19d74879
SHA256 d2c1900536447ea6be23d0389d5ac3c56362a4923e47e80e8ab8b310aee2b9ec
MD5 cc778faaa641a0982f030911a0173edb
SHA1 be51200adbb8aa21d61845c50a934cdafdb0ef6d
SHA512 8d4551582fb591c3652b6ef4ee3f37d7371389ebbffae76b951345b48510d09e6b679e557059f0127013c725163875840d75c8623b50e66b88b990b20e8068ea
SSDEEP 1536:VLsF2Kerc64sTiX2IV0DhuD4p4kojVR6h2o:VLy2Kerc64CiGImVucp4kojWh2o
TLSH
T1DA334B0A3BD550C2D56205B0EDAA0F35933BEC391127A75EA780765A1C72D6BCF30E9E
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