kirkware_loader[.]exe

General

Target
kirkware_loader.exe
Size 1.2MB
Sample261029-26tgksty9j
SHA256 793eae8e87722db796d53180f561cf875e462f87b8c5a016a99dcad570baa1f3
MD5 6c2adcb7bfc7685dfb288cd959835472
SHA1 5926873043c73fe2c35d0b8e2175fff03724f10d
SHA512 4e50728117eb57b9f6bc2a320b308c51db2a1e611f31885e1318f11aead0684b1addfe713108bfba63f491a8edc4680e8943258acfc35f4ac6d63ae579667519
SSDEEP 24576:KFa1GL/EjaRWaAA5vnAqLnr0ZAW8m9VVAPZf4OZ20B/nk:u0K05WnHr019VWPN4OZjB/
TLSH
T1F8459E4BE6A610F9D1BAD038C556651BFEB13895073097CB67D00A662FB37F0AA7E301
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
kirkware_loader.exe

File Explorer

kirkware_loader.exe

.exe 1.2MB

kirkware_loader.exe

IMPHASH 5c067986545399df168218f51ced0ce5
SHA256 793eae8e87722db796d53180f561cf875e462f87b8c5a016a99dcad570baa1f3
MD5 6c2adcb7bfc7685dfb288cd959835472
SHA1 5926873043c73fe2c35d0b8e2175fff03724f10d
SHA512 4e50728117eb57b9f6bc2a320b308c51db2a1e611f31885e1318f11aead0684b1addfe713108bfba63f491a8edc4680e8943258acfc35f4ac6d63ae579667519
SSDEEP 24576:KFa1GL/EjaRWaAA5vnAqLnr0ZAW8m9VVAPZf4OZ20B/nk:u0K05WnHr019VWPN4OZjB/
TLSH
T1F8459E4BE6A610F9D1BAD038C556651BFEB13895073097CB67D00A662FB37F0AA7E301
MD5 SHA1 SHA512 SSDEEP TLSH

windows:6 windows x64 arch:x64

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

0

Major OS version

6

Entry point

15644

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_CUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB paths

shell32

ord680 ShellExecuteW

user32

GetAsyncKeyState

kernel32

TlsAlloc WriteConsoleW ReadConsoleW HeapReAlloc HeapSize GetStdHandle CreateDirectoryW CreateFileW ReadFile WriteFile GetTempPathW CloseHandle SetHandleInformation CreatePipe WaitForSingleObject Sleep CreateProcessW GetModuleFileNameW LoadResource LockResource SizeofResource FindResourceW GetConsoleScreenBufferInfo SetConsoleTextAttribute SetConsoleTitleW CreateToolhelp32Snapshot Process32FirstW Process32NextW RtlCaptureContext RtlLookupFunctionEntry RtlVirtualUnwind UnhandledExceptionFilter SetUnhandledExceptionFilter GetCurrentProcess TerminateProcess IsProcessorFeaturePresent QueryPerformanceCounter GetCurrentProcessId GetCurrentThreadId GetSystemTimeAsFileTime InitializeSListHead IsDebuggerPresent GetStartupInfoW GetModuleHandleW SetFilePointerEx RtlPcToFileHeader RaiseException RtlUnwindEx GetLastError SetLastError EncodePointer EnterCriticalSection LeaveCriticalSection DeleteCriticalSection InitializeCriticalSectionAndSpinCount TlsGetValue TlsSetValue TlsFree FreeLibrary GetProcAddress LoadLibraryExW ExitProcess GetModuleHandleExW GetCommandLineA GetCommandLineW HeapAlloc HeapFree FlsAlloc FlsGetValue FlsSetValue FlsFree InitializeCriticalSectionEx VirtualProtect CompareStringW LCMapStringW GetFileType FindClose FindFirstFileExW FindNextFileW IsValidCodePage GetACP GetOEMCP GetCPInfo MultiByteToWideChar WideCharToMultiByte GetEnvironmentStringsW FreeEnvironmentStringsW SetEnvironmentVariableW SetStdHandle GetStringTypeW GetProcessHeap FlushFileBuffers GetConsoleOutputCP GetConsoleMode GetFileSizeEx

Name

.text

Size

109KB

Virtual Size

108KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

56KB

Virtual Size

56KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

3KB

Virtual Size

7KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

6KB

Virtual Size

5KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.fptable

Size

512B

Virtual Size

256B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rsrc

Size

1018KB

Virtual Size

1018KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

2KB

Virtual Size

1KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Resubmissions

Sharing

General

Malware Config

Signatures

File Explorer

kirkware_loader.exe

shell32

user32

kernel32

generic