msert[.]exe | Triage™

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General

Target
msert.exe
Size 224.8MB
Sample261007-3ht9msfx91
SHA256 4a7e7f87e6d870a46e0c03f2b38ef637d80f0b6abf6ffc1e4b245f1504db7648
MD5 0211b9d7048dc80453f55e78efc5faae
SHA1 7b0dfe64a3077fc9bfe0231198f5131f982b1d96
SHA512 269029015588f85e81c91d9053135b8732d5554bab9e9f453b5c55b40de284b66d5b29b7d299b21e15d5dfcce5e7e62131a25bcbdeaa1f8cb5d54566f90af960
SSDEEP 3145728:Kuv2QvSy/nIjwwKEAayaT01Zj+T+GTdKz3MYHKkToADt0+PFCc8SCvdO8qxa/P6u:KOvSb0D3XaT+0WfqG30Kr8SajP6dhTO
TLSH
T103B83316F2A440E8E4BBD174CA638767EBB23C1A1B3197CF15A056591F377E08E39B12
MD5 SHA1 SHA512 SSDEEP TLSH

Score

1^/10

Malware Config

Signatures

File Explorer

msert.exe

.exe 224.8MB

msert.exe

IMPHASH 6f39c4c897d80974a88aa70121805711
SHA256 4a7e7f87e6d870a46e0c03f2b38ef637d80f0b6abf6ffc1e4b245f1504db7648
MD5 0211b9d7048dc80453f55e78efc5faae
SHA1 7b0dfe64a3077fc9bfe0231198f5131f982b1d96
SHA512 269029015588f85e81c91d9053135b8732d5554bab9e9f453b5c55b40de284b66d5b29b7d299b21e15d5dfcce5e7e62131a25bcbdeaa1f8cb5d54566f90af960
SSDEEP 3145728:Kuv2QvSy/nIjwwKEAayaT01Zj+T+GTdKz3MYHKkToADt0+PFCc8SCvdO8qxa/P6u:KOvSb0D3XaT+0WfqG30Kr8SajP6dhTO
TLSH
T103B83316F2A440E8E4BBD174CA638767EBB23C1A1B3197CF15A056591F377E08E39B12
MD5 SHA1 SHA512 SSDEEP TLSH

Digest

70:1a:e7:4f:d2:2b:3b:d4:42:a8:a2:9a:f1:c2:1e:d7:82:57:28:6f:52:cb:0d:6e:3f:f2:10:4c:bb:f0:5b:b4

Digest Algorithm

sha256

PE Digests Matches

Trusted

Signing Certificate

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Chains

Oct 6, 2026

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

CN=Microsoft Windows Code Signing PCA 2024,O=Microsoft Corporation,C=US

CN=Microsoft Root Certificate Authority 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Subject

CN=Microsoft Windows Code Signing PCA 2024,O=Microsoft Corporation,C=US

Serial Number

33:00:00:00:1c:48:9f:81:df:a1:b0:b7:77:00:00:00:00:00:1c

Issuer

CN=Microsoft Root Certificate Authority 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Timespan

Aug 8, 2024 - Jun 23, 2035

Subject

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Serial Number

33:00:00:01:1c:5d:8c:74:db:aa:a5:db:bc:00:00:00:00:01:1c

Issuer

CN=Microsoft Windows Code Signing PCA 2024,O=Microsoft Corporation,C=US

Key Usages

KeyUsageDigitalSignature

Ext Key Usages

ExtKeyUsageCodeSigning

Timespan

Mar 5, 2026 - Mar 3, 2027

Subject

CN=Microsoft Time-Stamp Service,OU=Microsoft Ireland Operations Limited+OU=nShield TSS ESN:551A-05E0-D947,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Serial Number

33:00:00:02:1b:d0:b2:b8:02:67:f7:72:cf:00:01:00:00:02:1b

Issuer

CN=Microsoft Time-Stamp PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature

Ext Key Usages

ExtKeyUsageTimeStamping

Timespan

Aug 14, 2025 - Nov 13, 2026

Subject

CN=Microsoft Time-Stamp PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Serial Number

33:00:00:00:15:c5:e7:6b:9e:02:9b:49:99:00:00:00:00:00:15

Issuer

CN=Microsoft Root Certificate Authority 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Ext Key Usages

ExtKeyUsageTimeStamping

Timespan

Sep 30, 2021 - Sep 30, 2030

Minor OS version

Major OS version

Entry point

270672

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_FORCE_INTEGRITY IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_GUARD_CF IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE IMAGE_FILE_NET_RUN_FROM_SWAP

PDB paths

msert_empty.pdb

advapi32

GetTraceLoggerHandle GetTraceEnableLevel GetTraceEnableFlags RegisterTraceGuidsW TraceMessage InitiateSystemShutdownExW RegCloseKey EventActivityIdControl EventWriteTransfer CloseServiceHandle AllocateAndInitializeSid CopySid FreeSid CheckTokenMembership ConvertSidToStringSidW GetLengthSid GetTokenInformation QueryServiceStatus OpenSCManagerW QueryServiceConfigW OpenServiceW RegDeleteKeyW RegCreateKeyExW RegSetValueExW RegOpenKeyExW RegDeleteValueW RegQueryValueExW OpenProcessToken OpenThreadToken EventRegister EventUnregister AdjustTokenPrivileges LookupPrivilegeValueW CreateProcessAsUserW ConvertStringSecurityDescriptorToSecurityDescriptorW

kernel32

DecodePointer WaitForMultipleObjects FileTimeToSystemTime GetExitCodeProcess GetSystemWindowsDirectoryW MapViewOfFile CreateFileMappingW CreateProcessW VirtualLock CreateThread ExitThread FreeLibraryAndExitThread FindFirstFileExW GetCommandLineA GetCommandLineW CreateFileW DeviceIoControl ReadFile GetOverlappedResult WaitForSingleObject WriteFile CreateEventW GetExitCodeThread ResumeThread SuspendThread GetSystemPowerStatus FreeLibrary Sleep GlobalUnlock GlobalLock GlobalAlloc GetDriveTypeW GetLogicalDrives GetSystemTimeAsFileTime GetTimeFormatW LocalFileTimeToFileTime SystemTimeToFileTime GetLocalTime GetDiskFreeSpaceExW GetTickCount DeleteFileW GetTempFileNameW GetModuleHandleW CloseHandle FindClose Process32NextW Process32FirstW GetCurrentProcessId CreateToolhelp32Snapshot GetSystemDefaultUILanguage GetLastError SetLastError IsDebuggerPresent UnhandledExceptionFilter SetUnhandledExceptionFilter GetCurrentProcess TerminateProcess IsProcessorFeaturePresent HeapFree HeapAlloc EnterCriticalSection LeaveCriticalSection DeleteCriticalSection GetCurrentThread GetCurrentThreadId GetStdHandle GetFileType GetStartupInfoW FlsAlloc FlsGetValue FlsSetValue FlsFree InitializeCriticalSectionAndSpinCount GetProcAddress LoadLibraryExW CompareStringW LCMapStringW ExitProcess GetModuleHandleExW GetProcessHeap IsValidCodePage GetACP GetOEMCP GetCPInfo WideCharToMultiByte MultiByteToWideChar GetFileSizeEx SetFilePointerEx GetStringTypeW SetStdHandle GetTimeZoneInformation FlushFileBuffers GetConsoleOutputCP GetConsoleMode GetModuleFileNameW ReadConsoleW OutputDebugStringW HeapSize HeapReAlloc RaiseException WriteConsoleW GetEnvironmentStringsW FreeEnvironmentStringsW SetEnvironmentVariableW QueryPerformanceCounter InitializeSListHead EncodePointer InitializeCriticalSectionEx UnmapViewOfFile SetEvent LocalFree SetErrorMode GetSystemTime FileTimeToLocalFileTime MoveFileExW EnumResourceNamesW RemoveDirectoryW FindResourceW LoadResource LockResource SizeofResource lstrcmpA LocalAlloc FormatMessageW CreateDirectoryW FindFirstFileW GetFullPathNameW FindNextFileW ExpandEnvironmentStringsW GetFileAttributesW SetFileAttributesW LoadLibraryW GetTempPathW OpenEventW OpenFileMappingW GetSystemDirectoryW GetNativeSystemInfo HeapSetInformation SetEndOfFile

user32

SetRectEmpty SendInput GetDesktopWindow EnableWindow SetTimer KillTimer DefWindowProcW PostQuitMessage DestroyWindow DispatchMessageW TranslateMessage GetMessageW CreateWindowExW UnregisterClassW RegisterClassW SetClipboardData CloseClipboard EmptyClipboard OpenClipboard GetScrollBarInfo MessageBoxW GetForegroundWindow DialogBoxParamW PostMessageW SetWindowTextW LoadIconW GetDlgItem EndDialog SendDlgItemMessageW CheckRadioButton CheckDlgButton CopyRect GetWindowTextLengthW GetWindowTextW GetDC DrawTextW ReleaseDC GetParent SetFocus SetDlgItemTextW DrawTextExW ScreenToClient GetKeyState SetWindowLongPtrW GetWindowLongPtrW SendMessageW DestroyIcon LoadImageW GetWindowRect MapWindowPoints ShowWindow MoveWindow

shell32

Shell_NotifyIconW ShellExecuteW SHBrowseForFolderW SHGetFolderLocation SHGetPathFromIDListW ShellExecuteExW

ole32

CoWaitForMultipleHandles CoInitializeEx CoTaskMemAlloc CoSetProxyBlanket CoUninitialize CoTaskMemFree CoCreateInstance

oleaut32

SafeArrayGetLBound VariantClear SysFreeString SysAllocString SysAllocStringLen SysStringLen SafeArrayGetUBound SafeArrayGetElement

rpcrt4

UuidFromStringW

setupapi

SetupDiGetClassDevsW SetupDiEnumDeviceInterfaces SetupDiGetDeviceInterfaceDetailW SetupDiDestroyDeviceInfoList

ntdll

RtlGetVersion RtlVirtualUnwind RtlCaptureContext RtlNtStatusToDosError RtlPcToFileHeader RtlLookupFunctionEntry RtlUnwindEx

gdi32

SelectObject

comctl32

PropertySheetW InitCommonControlsEx

wintrust

WTHelperProvDataFromStateData WTHelperGetProvSignerFromChain WinVerifyTrust

crypt32

CryptMsgGetParam CryptQueryObject CryptMsgClose CertFreeCertificateContext CryptDecodeObject CertVerifyCertificateChainPolicy

userenv

CreateEnvironmentBlock DestroyEnvironmentBlock

Name

.text

Size

308KB

Virtual Size

305KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.imrsiv

Size

Virtual Size

Characteristics

IMAGE_SCN_CNT_UNINITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rdata

Size

108KB

Virtual Size

104KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

16KB

Virtual Size

20KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

16KB

Virtual Size

14KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

224.3MB

Virtual Size

224.3MB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

4KB

Virtual Size

2KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

msert.exe

advapi32

kernel32

user32

shell32

ole32

oleaut32

rpcrt4

setupapi

ntdll

gdi32

comctl32

wintrust

crypt32

userenv

generic