SimSig Setup[.]exe

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General

Target
SimSig Setup.exe
Size 4.2MB
Sample261002-v6gpfsscme
SHA256 4a916d629066c2037940d415fa8b9ebd1770563f6f73f51c0e3be2e61306c0e0
MD5 1887b581689e330956d989fcbf0812c8
SHA1 a79e4160acbeefddad2d63d10a55b4f290b367e5
SHA512 b3a06795aa0df0a3427c2ffeb59e14a4e9c5be25931e8694351efade9fe08a12cfa3dc3c1194eadc182c14deebc35ab19e25b6ba898e2865acd5a093ce4af244
SSDEEP 98304:XEE31aQBwi1ceXecNyKVaVG+C5o4Yna5R0c9SayYo8C4EsgK:J31JBp24NvVaVG+CarsR5sayR8ztn
TLSH
T16D26023FB268753EC4AB4B3246739260987BBB61A81B8C1E47F0485CCF665701F3BA55
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

installer

Malware Config

Signatures

Untrusted Codesign Signers 1 IoCs

Codesigned file was signed by an untrusted entity.

resource
SimSig Setup.exe

Inno Setup is an open-source installation builder for Windows applications. 1 IoCs

Inno Setup installer

installer

resource	yara_rule
sample	innosetup

File Explorer

SimSig Setup.exe

.exe 4.2MB

SimSig Setup.exe

IMPHASH 5a594319a0d69dbc452e748bcf05892e
SHA256 4a916d629066c2037940d415fa8b9ebd1770563f6f73f51c0e3be2e61306c0e0
MD5 1887b581689e330956d989fcbf0812c8
SHA1 a79e4160acbeefddad2d63d10a55b4f290b367e5
SHA512 b3a06795aa0df0a3427c2ffeb59e14a4e9c5be25931e8694351efade9fe08a12cfa3dc3c1194eadc182c14deebc35ab19e25b6ba898e2865acd5a093ce4af244
SSDEEP 98304:XEE31aQBwi1ceXecNyKVaVG+C5o4Yna5R0c9SayYo8C4EsgK:J31JBp24NvVaVG+CarsR5sayR8ztn
TLSH
T16D26023FB268753EC4AB4B3246739260987BBB61A81B8C1E47F0485CCF665701F3BA55
MD5 SHA1 SHA512 SSDEEP TLSH

windows:6 windows x86 arch:x86

Untrusted Codesign Signers

Codesigned file was signed by an untrusted entity.
Inno Setup is an open-source installation builder for Windows applications.

Inno Setup installer

installer

PE Signature issue

Digest

9e:6b:f3:4e:8d:43:2d:bb:c1:af:26:b3:5a:b4:96:c6:44:da:f5:4a:71:97:3f:45:31:dc:82:17:6b:c3:e4:c9

Digest Algorithm

sha256

PE Digests Matches

Trusted

Not trusted

Signing Certificate

CN=Geoffrey Mayo,O=Geoffrey Mayo,L=Wildomar,ST=California,C=US

Chains

Oct 2, 2026

CN=Geoffrey Mayo,O=Geoffrey Mayo,L=Wildomar,ST=California,C=US

CN=Sectigo RSA Code Signing CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

CN=USERTrust RSA Certification Authority,O=The USERTRUST Network,L=Jersey City,ST=New Jersey,C=US

CN=AAA Certificate Services,O=Comodo CA Limited,L=Salford,ST=Greater Manchester,C=GB

CN=Geoffrey Mayo,O=Geoffrey Mayo,L=Wildomar,ST=California,C=US

CN=Sectigo RSA Code Signing CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

CN=USERTrust RSA Certification Authority,O=The USERTRUST Network,L=Jersey City,ST=New Jersey,C=US

Minor OS version

Major OS version

Entry point

745196

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT 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_BYTES_REVERSED_LO IMAGE_FILE_32BIT_MACHINE IMAGE_FILE_BYTES_REVERSED_HI

PDB paths

kernel32

GetACP GetExitCodeProcess LocalFree CloseHandle SizeofResource VirtualProtect VirtualFree GetFullPathNameW ExitProcess HeapAlloc GetCPInfoExW RtlUnwind GetCPInfo GetStdHandle GetModuleHandleW FreeLibrary HeapDestroy ReadFile CreateProcessW GetLastError GetModuleFileNameW SetLastError FindResourceW CreateThread CompareStringW LoadLibraryA ResetEvent GetVersion RaiseException FormatMessageW SwitchToThread GetExitCodeThread GetCurrentThread LoadLibraryExW LockResource GetCurrentThreadId UnhandledExceptionFilter VirtualQuery VirtualQueryEx Sleep EnterCriticalSection SetFilePointer LoadResource SuspendThread GetTickCount GetFileSize GetStartupInfoW GetFileAttributesW InitializeCriticalSection GetThreadPriority SetThreadPriority GetCurrentProcess VirtualAlloc GetSystemInfo GetCommandLineW LeaveCriticalSection GetProcAddress ResumeThread GetVersionExW VerifyVersionInfoW HeapCreate GetWindowsDirectoryW VerSetConditionMask GetDiskFreeSpaceW FindFirstFileW GetUserDefaultUILanguage lstrlenW QueryPerformanceCounter SetEndOfFile HeapFree WideCharToMultiByte FindClose MultiByteToWideChar LoadLibraryW SetEvent CreateFileW GetLocaleInfoW GetSystemDirectoryW DeleteFileW GetLocalTime GetEnvironmentVariableW WaitForSingleObject WriteFile ExitThread DeleteCriticalSection TlsGetValue GetDateFormatW SetErrorMode IsValidLocale TlsSetValue CreateDirectoryW GetSystemDefaultUILanguage EnumCalendarInfoW LocalAlloc GetUserDefaultLangID RemoveDirectoryW CreateEventW SetThreadLocale GetThreadLocale

comctl32

InitCommonControls

version

GetFileVersionInfoSizeW VerQueryValueW GetFileVersionInfoW

user32

CreateWindowExW TranslateMessage CharLowerBuffW CallWindowProcW CharUpperW PeekMessageW GetSystemMetrics SetWindowLongW MessageBoxW DestroyWindow CharUpperBuffW CharNextW MsgWaitForMultipleObjects LoadStringW ExitWindowsEx DispatchMessageW

oleaut32

SysAllocStringLen SafeArrayPtrOfIndex VariantCopy SafeArrayGetLBound SafeArrayGetUBound VariantInit VariantClear SysFreeString SysReAllocStringLen VariantChangeType SafeArrayCreate

netapi32

NetWkstaGetInfo NetApiBufferFree

advapi32

RegQueryValueExW AdjustTokenPrivileges LookupPrivilegeValueW RegCloseKey OpenProcessToken RegOpenKeyExW

Name

.text

Size

718KB

Virtual Size

717KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.itext

Size

6KB

Virtual Size

5KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.data

Size

14KB

Virtual Size

13KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.bss

Size

Virtual Size

27KB

Characteristics

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 IMAGE_SCN_MEM_WRITE

Name

.didata

Size

512B

Virtual Size

420B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.edata

Size

512B

Virtual Size

154B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.tls

Size

Virtual Size

24B

Characteristics

IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rdata

Size

512B

Virtual Size

93B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

18KB

Virtual Size

18KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

SimSig Setup.exe

PE Signature issue

kernel32

comctl32

version

user32

oleaut32

netapi32

advapi32

generic