Kirra_Lock[.]exe | Triage™

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General

Target
Kirra_Lock.exe
Size 10.5MB
Sample260912-vyfr7a1erc
SHA256 10a435dc50eda8a5baf7e0d8e371cbfa9f4490fb873419c5c3846afc657595e3
MD5 9d24a5bae1e719b217c962369a333eb3
SHA1 8a474a69a708e8b426ae8149dcb9ce38d0846eb6
SHA512 699d26c89373cfe5bc0823a6a6e67c5ce07451e162311b9324ac5ea8858f4a9e77782d4db6bbd39c4e73ae214ad8699200bb0db05724327c068bb783415190f5
SSDEEP 196608:GAs6VrHO203ik7vc90zm3xSWm6LVr23xSWKvgLhkGcijP:GAs64r7UazmXm6xr2BSWjk
TLSH
T1D5B6338E5E61446FC3826EB85FE0FA3CA43EAFF21D155945A62072F9BB77F482C41109
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Kirra_Lock.exe

File Explorer

Kirra_Lock.exe

.exe 10.5MB

Kirra_Lock.exe

IMPHASH c63db87cf03479408d0546f4c515498a
SHA256 10a435dc50eda8a5baf7e0d8e371cbfa9f4490fb873419c5c3846afc657595e3
MD5 9d24a5bae1e719b217c962369a333eb3
SHA1 8a474a69a708e8b426ae8149dcb9ce38d0846eb6
SHA512 699d26c89373cfe5bc0823a6a6e67c5ce07451e162311b9324ac5ea8858f4a9e77782d4db6bbd39c4e73ae214ad8699200bb0db05724327c068bb783415190f5
SSDEEP 196608:GAs6VrHO203ik7vc90zm3xSWm6LVr23xSWKvgLhkGcijP:GAs64r7UazmXm6xr2BSWjk
TLSH
T1D5B6338E5E61446FC3826EB85FE0FA3CA43EAFF21D155945A62072F9BB77F482C41109
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x64 arch:x64

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

4119

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LINE_NUMS_STRIPPED IMAGE_FILE_LOCAL_SYMS_STRIPPED IMAGE_FILE_LARGE_ADDRESS_AWARE IMAGE_FILE_DEBUG_STRIPPED

PDB paths

kernel32

AddDllDirectory CloseHandle CopyFileW CreateDirectoryW CreateFileMappingW CreateFileW CreateProcessW DeleteCriticalSection DeleteFileW EnterCriticalSection FormatMessageA FreeLibrary GenerateConsoleCtrlEvent GetCommandLineW GetCurrentProcessId GetEnvironmentVariableW GetExitCodeProcess GetFileAttributesW GetFileSize GetFullPathNameW GetLastError GetModuleFileNameW GetModuleHandleA GetModuleHandleExA GetProcAddress GetProcessId GetShortPathNameW GetStartupInfoW GetStdHandle GetSystemTimeAsFileTime GetTempPathW InitializeCriticalSection IsDBCSLeadByteEx K32GetModuleFileNameExW LeaveCriticalSection LoadLibraryA LoadLibraryExW MapViewOfFile MultiByteToWideChar OpenProcess QueryPerformanceCounter ReadFile SetConsoleCtrlHandler SetDllDirectoryW SetEnvironmentVariableW SetUnhandledExceptionFilter Sleep TerminateProcess TlsGetValue UnmapViewOfFile VirtualProtect VirtualQuery WaitForSingleObject WideCharToMultiByte WriteFile

msvcrt

__C_specific_handler ___lc_codepage_func ___mb_cur_max_func __argc __iob_func __set_app_type __setusermatherr __wargv __wgetmainargs __winitenv _amsg_exit _cexit _commode _errno _fmode _initterm _lock _unlock _wcmdln _wcsicmp _wcsdup _wrename abort atexit calloc exit fprintf fputc fputwc free fwprintf iswctype localeconv malloc mbstowcs memcpy memmove memset puts signal strerror strlen strncmp vfprintf wcschr wcscmp wcslen wcsncmp wcstol

shell32

CommandLineToArgvW SHFileOperationW SHGetFolderPathW

Name

.text

Size

128KB

Virtual Size

127KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.data

Size

512B

Virtual Size

384B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rdata

Size

10.0MB

Virtual Size

10.0MB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.eh_fram

Size

512B

Virtual Size

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

2KB

Virtual Size

2KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.xdata

Size

3KB

Virtual Size

2KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.bss

Size

Virtual Size

165KB

Characteristics

IMAGE_SCN_CNT_UNINITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.idata

Size

4KB

Virtual Size

3KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.tls

Size

512B

Virtual Size

16B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rsrc

Size

363KB

Virtual Size

363KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

512B

Virtual Size

152B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

Kirra_Lock.exe

kernel32

msvcrt

shell32

generic