SIR_KeyGen[.]exe | Triage™

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24/09/2026, 09:20

260924-la5a7sxx8l7

24/09/2026, 09:09

260924-k4v4ysac457

24/09/2026, 09:04

260924-k1xtda1hmf7

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General

Target
SIR_KeyGen.exe
Size 460KB
Sample260924-k1xtda1hmf
SHA256 e5338f0d9bdf9e098fe24121ff9d06c6eeadfea7c29d1ddd6883449e2d4b2d65
MD5 11c9fd0206d5e4804882d32d75af679d
SHA1 8247508f0d8b3942a3e4e937e78e6667d0dc5eeb
SHA512 e0b56ae29bffe9ac169b2f9bb7e88c111995f6cf38ec06b27ba65e817d0c270768d955bb033cdf473703d2f74710e7628a209bc9ec8e4ab08bca0477bfd0a6eb
SSDEEP 6144:98LxBV2nA8P9tlASRzKW3Ztns1q1YcA1ticGsx7W6TknlFamGRqCKJvbi7MDhUyf:cc9t2SllJts1fnU5GvyQYve7uSU
TLSH
T12BA41243E9A104D3D4A7A3B050EFEA7133BBBD76CA6317475699BB3629B23431123943
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

installer

Malware Config

Signatures

Unsigned PE 4 IoCs

Checks for missing Authenticode signature.

resource
SIR_KeyGen.exe
unpack001/$TEMP/BASSMOD.dll
unpack001/$TEMP/R2RSIRKG2.dll
unpack001/$TEMP/keygen.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
sample	nsis_installer_1
sample	nsis_installer_2

File Explorer

SIR_KeyGen.exe

.exe 460KB
$TEMP/BASSMOD.dll

.dll 33KB
$TEMP/R2RSIRKG2.dll

.dll 54KB
$TEMP/bgm.xm

80KB
$TEMP/keygen.exe

.exe 491KB

SIR_KeyGen.exe

IMPHASH b76363e9cb88bf9390860da8e50999d2
SHA256 e5338f0d9bdf9e098fe24121ff9d06c6eeadfea7c29d1ddd6883449e2d4b2d65
MD5 11c9fd0206d5e4804882d32d75af679d
SHA1 8247508f0d8b3942a3e4e937e78e6667d0dc5eeb
SHA512 e0b56ae29bffe9ac169b2f9bb7e88c111995f6cf38ec06b27ba65e817d0c270768d955bb033cdf473703d2f74710e7628a209bc9ec8e4ab08bca0477bfd0a6eb
SSDEEP 6144:98LxBV2nA8P9tlASRzKW3Ztns1q1YcA1ticGsx7W6TknlFamGRqCKJvbi7MDhUyf:cc9t2SllJts1fnU5GvyQYve7uSU
TLSH
T12BA41243E9A104D3D4A7A3B050EFEA7133BBBD76CA6317475699BB3629B23431123943
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x86 arch:x86

Unsigned PE

Checks for missing Authenticode signature.
NSIS installer

installer

Minor OS version

Major OS version

Entry point

12586

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

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

GetTickCount GetShortPathNameA GetFullPathNameA MoveFileA SetCurrentDirectoryA GetFileAttributesA SetFileAttributesA CompareFileTime SearchPathA GetFileSize GetModuleFileNameA GetCurrentProcess CopyFileA ExitProcess GetWindowsDirectoryA GetTempPathA Sleep lstrcmpiA GetVersion SetErrorMode lstrcpynA GetDiskFreeSpaceA GlobalUnlock GlobalLock CreateThread GetLastError CreateDirectoryA CreateProcessA RemoveDirectoryA CreateFileA GetTempFileNameA lstrcatA GetSystemDirectoryA WaitForSingleObject SetFileTime CloseHandle GlobalFree lstrcmpA ExpandEnvironmentStringsA GetExitCodeProcess GlobalAlloc lstrlenA GetCommandLineA GetProcAddress FindFirstFileA FindNextFileA DeleteFileA SetFilePointer ReadFile FindClose GetPrivateProfileStringA WritePrivateProfileStringA WriteFile MulDiv MultiByteToWideChar LoadLibraryExA GetModuleHandleA FreeLibrary

user32

SetCursor GetWindowRect EnableMenuItem GetSystemMenu SetClassLongA IsWindowEnabled SetWindowPos GetSysColor EndDialog ScreenToClient LoadCursorA CheckDlgButton GetMessagePos LoadBitmapA CallWindowProcA IsWindowVisible CloseClipboard SetForegroundWindow GetWindowLongA RegisterClassA TrackPopupMenu AppendMenuA CreatePopupMenu GetSystemMetrics SetDlgItemTextA GetDlgItemTextA MessageBoxIndirectA CharPrevA DispatchMessageA PeekMessageA GetDC EnableWindow InvalidateRect SendMessageA DefWindowProcA BeginPaint GetClientRect FillRect DrawTextA SystemParametersInfoA CreateWindowExA GetClassInfoA DialogBoxParamA CharNextA ExitWindowsEx SetTimer PostQuitMessage SetWindowLongA SendMessageTimeoutA LoadImageA wsprintfA GetDlgItem FindWindowExA IsWindow SetClipboardData EmptyClipboard OpenClipboard EndPaint CreateDialogParamA DestroyWindow ShowWindow SetWindowTextA

gdi32

SelectObject SetBkMode CreateFontIndirectA SetTextColor DeleteObject GetDeviceCaps CreateBrushIndirect SetBkColor

shell32

SHGetSpecialFolderLocation SHGetPathFromIDListA SHBrowseForFolderA SHGetFileInfoA SHFileOperationA ShellExecuteA

advapi32

RegDeleteValueA SetFileSecurityA RegOpenKeyExA RegDeleteKeyA RegEnumValueA RegCloseKey RegCreateKeyExA RegSetValueExA RegQueryValueExA RegEnumKeyA

comctl32

ImageList_AddMasked ImageList_Destroy ImageList_Create ord17

ole32

OleUninitialize OleInitialize CoTaskMemFree CoCreateInstance

$TEMP/BASSMOD.dll

SHA256 8ad9e47693e292f381da42ddc13724a3063040e51c26f4ca8e1f8e2f1ddd547f
MD5 e4ec57e8508c5c4040383ebe6d367928
SHA1 b22bcce36d9fdeae8ab7a7ecc0b01c8176648d06
SHA512 77d5cf66caf06e192e668fae2b2594e60a498e8e0ccef5b09b9710721a4cdb0c852d00c446fd32c5b5c85e739de2e73cb1f1f6044879fe7d237341bbb6f27822
SSDEEP 768:qQmS5iUgi5czW+DlrQOS1DeDdjgNtbX4O6DHix84H0:qQz5Tgof+DdpS1+djctLSHiZ0
TLSH
T130F2E1B43B18CDE2DDC807F41FE4E6A879DB92026A13DBC5D697CA97328B4914D42F11
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x86 arch:x86

Unsigned PE

Checks for missing Authenticode signature.
NSIS installer

installer

Minor OS version

Major OS version

Entry point

73795

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LINE_NUMS_STRIPPED IMAGE_FILE_LOCAL_SYMS_STRIPPED IMAGE_FILE_32BIT_MACHINE IMAGE_FILE_DLL

PDB paths

$TEMP/R2RSIRKG2.dll

IMPHASH a93de835c36b32c7e36d79ed2773a9fe
SHA256 24863ef03b9e2d59a86d13cbb1cf11b71f15f27ccf991b66f9ca529cc4ad34a9
MD5 860ceb6259942f4c214ba91502a37f37
SHA1 e6e9c7ae2072e279c6d54d0e01c98b735f000386
SHA512 9286aeb0535bc9aa18b4fe24e45ae159c64cf394e3dbe52a01defab079b4f46cb8b9699a402aa57e4c667ce0c642cc64ad56b9943492ccfc29edd617db65f19b
SSDEEP 1536:wCwPU8M17FS8oJW2QGGMnToIfWP6krIgr9:+ynSFQngTBf2Ugr9
TLSH
T188438E017A6285B3C3584330EDE5EA35A3FF66551EE059D62F9ABB081C7AA6173103CB
MD5 SHA1 SHA512 SSDEEP TLSH

windows:6 windows x86 arch:x86

Unsigned PE

Checks for missing Authenticode signature.
NSIS installer

installer

Minor OS version

Major OS version

Entry point

34992

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE IMAGE_FILE_32BIT_MACHINE IMAGE_FILE_DLL

PDB paths

kernel32

IsDebuggerPresent CloseHandle SetUnhandledExceptionFilter QueryPerformanceCounter QueryPerformanceFrequency DeleteCriticalSection CreateEventW GetCurrentProcess TerminateProcess GetCurrentThreadId GetModuleHandleW GetProcAddress DisableThreadLibraryCalls GetSystemTimeAsFileTime GetCurrentProcessId UnhandledExceptionFilter IsProcessorFeaturePresent GlobalFree GlobalLock GlobalUnlock GlobalAlloc InitializeCriticalSectionAndSpinCount InitializeSListHead

user32

OpenClipboard CloseClipboard SetClipboardData EmptyClipboard

winmm

timeBeginPeriod

vcruntime140

__std_terminate memset _purecall memcpy __CxxFrameHandler3 __std_type_info_destroy_list __std_exception_copy __std_exception_destroy _except_handler4_common _CxxThrowException

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

strcat strcpy towupper strlen

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

calloc realloc malloc free _callnewh

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

__stdio_common_vsprintf

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

_initterm_e _initterm _cexit _crt_atexit _execute_onexit_table _register_onexit_function _initialize_onexit_table _initialize_narrow_environment _configure_narrow_argv _seh_filter_dll

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

abs _byteswap_uint64

$TEMP/keygen.exe

IMPHASH 61baf0ac33a569be37eaea52c317de1e
SHA256 e43e891422899a8585b7d400cd48b96faeb75b9295cfde77ff1f0e4351a19444
MD5 d28b75b09e347c90996985a656cc61a1
SHA1 45b1de4870b12e226d356fd7d3a5973968688cc2
SHA512 2f0bfe50336d7a40cbde6a593ed50afbe54aeb0776c06555c0f5436c08c7fc4207d770002b52acf130f39be23f98633efbf0c1bd9dc1b4e72d200008272a9583
SSDEEP 6144:bcmzikEPDonRgNgz1+hw6hNgPfHv9PAimIAOIon2gH6urmJpX8P9:bc/kEPDonR6Y436vRYJpI
TLSH
T1F4B46F50569180BBF7DF0339E8636E06C23E061C43E2DEDFD2DB0E8D54952EE25E1A5A
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x86 arch:x86

Unsigned PE

Checks for missing Authenticode signature.
NSIS installer

installer

Minor OS version

Major OS version

Entry point

155256

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

comctl32

_TrackMouseEvent ord17

msimg32

GradientFill

kernel32

FreeEnvironmentStringsA UnhandledExceptionFilter VirtualQuery VirtualProtect GetStringTypeW GetStringTypeA IsValidCodePage IsValidLocale EnumSystemLocalesA GetLocaleInfoA GetUserDefaultLCID GetCPInfo GetOEMCP GetACP HeapSize SetUnhandledExceptionFilter WriteFile GetFileType GetStdHandle SetHandleCount IsBadWritePtr VirtualAlloc VirtualFree HeapCreate HeapDestroy ReadFile CloseHandle LCMapStringW LCMapStringA SetFilePointer GetCurrentProcess TerminateProcess ExitProcess GetVersionExA GetStartupInfoA GetModuleHandleA SetCurrentDirectoryA SetEnvironmentVariableA CreateDirectoryA GetFullPathNameA GetCurrentDirectoryA GetDriveTypeA HeapReAlloc RtlUnwind RaiseException HeapFree HeapAlloc FreeEnvironmentStringsW GetEnvironmentStringsW SetStdHandle FlushFileBuffers CreateFileA IsBadReadPtr IsBadCodePtr QueryPerformanceCounter GetLocalTime FindFirstFileA FindNextFileA GetLastError FindClose DeleteFileA GetShortPathNameA GlobalLock GlobalUnlock MulDiv GlobalAlloc GlobalFree WideCharToMultiByte MultiByteToWideChar WinExec GetWindowsDirectoryA GetSystemDirectoryA GetSystemInfo GlobalMemoryStatus GetVersion GetComputerNameA FreeLibrary LoadLibraryA GetProcAddress GetCommandLineA Sleep GetTickCount GetModuleFileNameA GetLocaleInfoW GetCurrentThreadId GetCurrentProcessId GetSystemTimeAsFileTime InterlockedExchange SetEndOfFile GetEnvironmentStrings

user32

UnregisterClassA AdjustWindowRectEx LoadIconA LoadCursorA RegisterClassA PostQuitMessage DefWindowProcA InvalidateRect BeginPaint EndPaint FillRect TabbedTextOutA GetSysColor MoveWindow ReleaseDC GetClassLongA SetClassLongA SetWindowLongA IsWindowEnabled EnableWindow SetFocus GetFocus GetWindowLongA GetClientRect InflateRect DrawFocusRect DrawTextA PostMessageA SetWindowTextA GetDlgItemTextA GetDlgCtrlID IsDlgButtonChecked CallWindowProcA FindWindowA MsgWaitForMultipleObjects PeekMessageA GetMessageA TranslateMessage DispatchMessageA MapVirtualKeyA GetWindowRect SetActiveWindow SetWindowPos GetAsyncKeyState GetCursorPos ShowCursor SetCursorPos MessageBoxA EnumDisplaySettingsA ChangeDisplaySettingsA CreateWindowExA ShowWindow SendMessageA DestroyWindow GetDC GetSystemMetrics GetActiveWindow

gdi32

CreateDIBSection CreateCompatibleDC Rectangle DeleteDC SetBkColor SetStretchBltMode StretchBlt Ellipse MoveToEx LineTo SetPixel GetPixel GetTextExtentPoint32A SetDIBColorTable CreatePalette CreatePen GetTextMetricsA SelectPalette RealizePalette BitBlt SelectObject SetBkMode SetTextColor GetStockObject CreateFontIndirectA DeleteObject CreateSolidBrush GetDeviceCaps

comdlg32

GetSaveFileNameA ChooseColorA GetOpenFileNameA

advapi32

GetUserNameA

shell32

ShellExecuteA ShellExecuteExA SHGetSpecialFolderPathA

ole32

CoCreateInstance IIDFromString CLSIDFromProgID CoUninitialize CreateStreamOnHGlobal OleUninitialize CoInitializeEx OleInitialize

oleaut32

SafeArrayGetUBound SafeArrayGetLBound SafeArrayGetVartype SafeArrayCopy OleLoadPicture SafeArrayGetElement VariantClear VariantInit SafeArrayAccessData SafeArrayGetDim SafeArrayUnaccessData SafeArrayCreate SysFreeString SysAllocStringByteLen VariantChangeType VariantCopyInd VariantCopy SysAllocString SafeArrayPutElement

winmm

sndPlaySoundA mciSendStringA timeEndPeriod timeGetDevCaps timeBeginPeriod timeGetTime

SIR_KeyGen.exe

kernel32

user32

gdi32

shell32

advapi32

comctl32

ole32

generic

$TEMP/BASSMOD.dll

generic

$TEMP/R2RSIRKG2.dll

kernel32

user32

winmm

vcruntime140

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

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

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

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

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

generic

$TEMP/bgm.xm

$TEMP/keygen.exe

comctl32

msimg32

kernel32

user32

gdi32

comdlg32

advapi32

shell32

ole32

oleaut32

winmm

generic