yidhari[.]exe | Triage™

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General

Target
yidhari.exe
Size 132.2MB
Sample260817-gl1pyatgla
SHA256 0dc4951c356d8b96b32c64a2bd601650e6223b78968318ad9b0415ee24177b7d
MD5 0ac50344c57aec1fcbb42de1db98fe04
SHA1 b5eec967ca98a450cdd59d432b70d1f8636b2c9f
SHA512 c5e274f2fd4c6c1d142897433ec133ddf1875e115a62094c5995ed67be165b52856a4b5438be4caedc633a46f4619a34eab91e3d233e6977655866293bf23f73
SSDEEP 786432:qhy/BiV6pRRSuek6aZFDMN6NyHb/skjK30GXnPsM9UaXmSGRveN1J77zukHvBGa2:hiV6TRSuekzZFYN6ILWzXmpEt9aO+
TLSH
T1DD68AE47E59B08E8D8A7D278629B6623FB307C5987285EFB4744C6341D63BD06E3BB10
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

Malware Config

Signatures

Detected Nirsoft tools 1 IoCs

Free utilities often used by attackers which can steal passwords, product keys, etc.

resource	yara_rule
sample	Nirsoft

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
yidhari.exe

File Explorer

yidhari.exe

.exe 132.2MB

yidhari.exe

IMPHASH 94cc63ad24ba8243e14eaf848e0b207e
SHA256 0dc4951c356d8b96b32c64a2bd601650e6223b78968318ad9b0415ee24177b7d
MD5 0ac50344c57aec1fcbb42de1db98fe04
SHA1 b5eec967ca98a450cdd59d432b70d1f8636b2c9f
SHA512 c5e274f2fd4c6c1d142897433ec133ddf1875e115a62094c5995ed67be165b52856a4b5438be4caedc633a46f4619a34eab91e3d233e6977655866293bf23f73
SSDEEP 786432:qhy/BiV6pRRSuek6aZFDMN6NyHb/skjK30GXnPsM9UaXmSGRveN1J77zukHvBGa2:hiV6TRSuekzZFYN6ILWzXmpEt9aO+
TLSH
T1DD68AE47E59B08E8D8A7D278629B6623FB307C5987285EFB4744C6341D63BD06E3BB10
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x64 arch:x64

Detected Nirsoft tools

Free utilities often used by attackers which can steal passwords, product keys, etc.
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_LARGE_ADDRESS_AWARE

PDB paths

advapi32

RegCloseKey RegCreateKeyExW RegDeleteKeyW RegOpenKeyExW RegOpenKeyW RegQueryValueExW RegSetValueExW

kernel32

CloseHandle CreateDirectoryW CreateEventA CreateMutexA CreateSemaphoreA DeleteCriticalSection DuplicateHandle EnterCriticalSection FindResourceW FormatMessageA FreeLibrary GetCurrentProcess GetCurrentProcessId GetCurrentThread GetCurrentThreadId GetHandleInformation GetLastError GetModuleFileNameA GetModuleHandleA GetModuleHandleW GetProcAddress GetProcessAffinityMask GetSystemTimeAsFileTime GetThreadContext GetThreadPriority GetTickCount InitializeCriticalSection IsDebuggerPresent LeaveCriticalSection LoadLibraryA LoadResource LocalFree LockResource OpenProcess OutputDebugStringA QueryPerformanceCounter QueryPerformanceFrequency RaiseException ReleaseSemaphore ResetEvent ResumeThread RtlCaptureContext RtlLookupFunctionEntry RtlUnwindEx RtlVirtualUnwind SetEvent SetLastError SetProcessAffinityMask SetThreadContext SetThreadPriority SetUnhandledExceptionFilter SizeofResource Sleep SuspendThread TlsAlloc TlsGetValue TlsSetValue TryEnterCriticalSection VirtualProtect VirtualQuery WaitForMultipleObjects WaitForSingleObject WinExec

api-ms-win-crt-convert-l1-1-0

btowc mbrtowc mbsrtowcs strtoul wcrtomb wctob

api-ms-win-crt-environment-l1-1-0

__p__wenviron getenv

api-ms-win-crt-filesystem-l1-1-0

_fstat64

api-ms-win-crt-heap-l1-1-0

_set_new_mode calloc free malloc realloc

api-ms-win-crt-locale-l1-1-0

___mb_cur_max_func _configthreadlocale localeconv setlocale

api-ms-win-crt-math-l1-1-0

__setusermatherr _fdopen

api-ms-win-crt-private-l1-1-0

__C_specific_handler __intrinsic_setjmpex longjmp memchr memcmp memcpy memmove strchr

api-ms-win-crt-runtime-l1-1-0

__p___argc __p___wargv _assert _beginthreadex _cexit _configure_wide_argv _crt_atexit _endthreadex _errno _exit _set_app_type _initialize_wide_environment _initterm _initterm_e _set_invalid_parameter_handler abort exit signal strerror

api-ms-win-crt-stdio-l1-1-0

__acrt_iob_func __p__commode __p__fmode __stdio_common_vfprintf __stdio_common_vsprintf __stdio_common_vswprintf _fileno _fseeki64 _ftelli64 _get_osfhandle _lseeki64 _read _wfopen _write fclose fflush fgetwc fopen fputc fputs fread fwrite getc getwc putc putwc setvbuf ungetc ungetwc

api-ms-win-crt-string-l1-1-0

_strdup iswctype memset strcmp strcoll strlen strncmp strnlen strxfrm towlower towupper wcscoll wcslen wcsnlen wcsxfrm wctype

api-ms-win-crt-time-l1-1-0

strftime wcsftime

api-ms-win-crt-utility-l1-1-0

rand_s

shell32

ShellExecuteExW

user32

SendMessageTimeoutW

Name

.text

Size

817KB

Virtual Size

816KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.data

Size

12KB

Virtual Size

12KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rdata

Size

73KB

Virtual Size

73KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

Size

512B

Virtual Size

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

49KB

Virtual Size

48KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.xdata

Size

68KB

Virtual Size

67KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.bss

Size

Virtual Size

3KB

Characteristics

IMAGE_SCN_CNT_UNINITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.idata

Size

7KB

Virtual Size

6KB

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

129.5MB

Virtual Size

129.5MB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

6KB

Virtual Size

5KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Name

/14

Size

512B

Virtual Size

208B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Name

/29

Size

19KB

Virtual Size

18KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Name

/41

Size

2KB

Virtual Size

2KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Name

/55

Size

2KB

Virtual Size

2KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Name

/67

Size

1KB

Virtual Size

1KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Name

/80

Size

512B

Virtual Size

211B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Name

/91

Size

1KB

Virtual Size

1KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Name

/107

Size

2KB

Virtual Size

2KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Name

/123

Size

512B

Virtual Size

249B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

yidhari.exe

advapi32

kernel32

api-ms-win-crt-convert-l1-1-0

api-ms-win-crt-environment-l1-1-0

api-ms-win-crt-filesystem-l1-1-0

api-ms-win-crt-heap-l1-1-0

api-ms-win-crt-locale-l1-1-0

api-ms-win-crt-math-l1-1-0

api-ms-win-crt-private-l1-1-0

api-ms-win-crt-runtime-l1-1-0

api-ms-win-crt-stdio-l1-1-0

api-ms-win-crt-string-l1-1-0

api-ms-win-crt-time-l1-1-0

api-ms-win-crt-utility-l1-1-0

shell32

user32

generic