juko | 2026-08-28_306d3360609667518d0651f23e3a60fd_elex_glassworm_wannacry

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General

Target
2026-08-28_306d3360609667518d0651f23e3a60fd_elex_glassworm_wannacry
Size 194KB
Sample260828-x1hexadp21
SHA256 1fac7677042823dc7f5406f7daccd0b9e4d2c981b2c1806be5d476761d226024
MD5 306d3360609667518d0651f23e3a60fd
SHA1 6422be4764899592ba2d63e4b7bc7fc2b97ea2a6
SHA512 414a517095ea3622daf5d14815bb5b94b073358034b58c4a3ff5be26639ee4de90fda7a2db6cc5011223ae08b2bdf6effcea0710f3365e95ead54c5c4cba0f48
SSDEEP 3072:8Ly2Kerc64CiGImStfHLREJ5itGNbg5uF1dphh1PBDp9Dwqo/zc/9yH8Ka193eTS:8Ly2Kwc64YIPS5F1hLPBp6qorcbIR5KZ
TLSH
T189147CDAF7623112C45B0A39A7665F189838EC760393651966C0F16C2C7B8B9832FFDC
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
2026-08-28_306d3360609667518d0651f23e3a60fd_elex_glassworm_wannacry

File Explorer

2026-08-28_306d3360609667518d0651f23e3a60fd_elex_glassworm_wannacry

.exe .ps1 194KB

2026-08-28_306d3360609667518d0651f23e3a60fd_elex_glassworm_wannacry

IMPHASH 170193414cc4abf0ae27dc2a19d74879
SHA256 1fac7677042823dc7f5406f7daccd0b9e4d2c981b2c1806be5d476761d226024
MD5 306d3360609667518d0651f23e3a60fd
SHA1 6422be4764899592ba2d63e4b7bc7fc2b97ea2a6
SHA512 414a517095ea3622daf5d14815bb5b94b073358034b58c4a3ff5be26639ee4de90fda7a2db6cc5011223ae08b2bdf6effcea0710f3365e95ead54c5c4cba0f48
SSDEEP 3072:8Ly2Kerc64CiGImStfHLREJ5itGNbg5uF1dphh1PBDp9Dwqo/zc/9yH8Ka193eTS:8Ly2Kwc64YIPS5F1hLPBp6qorcbIR5KZ
TLSH
T189147CDAF7623112C45B0A39A7665F189838EC760393651966C0F16C2C7B8B9832FFDC
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x86 arch:x86 polyglot

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

Name

.text

Size

19KB

Virtual Size

19KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

3KB

Virtual Size

3KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

1024B

Virtual Size

68KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rsrc

Size

5KB

Virtual Size

5KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rdata

Size

105KB

Virtual Size

108KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rdata

Size

56KB

Virtual Size

60KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

File Explorer

2026-08-28_306d3360609667518d0651f23e3a60fd_elex_glassworm_wannacry

kernel32

user32

advapi32

shell32

psapi

msvcrt

shlwapi

generic