VSTOInstaller[.]exe

Sharing

Copy URL Twitter E-mail

General

Target

VSTOInstaller.exe
Size

100KB
MD5

f4a2885c8d03831cc031ecdaac38efcc
SHA1

a310cdd3b10d86aaec11b1aa9cca500c29d41b8d
SHA256

fadf0cc5a2cb10055b17df60815c5210cba0c5255ba636b13fe8a480af297c99
SHA512

510c062e6bd4fe3ace2bdf7343b256069170e574ddeaa256aa641bb4c49e19a2232211a1fadb881b27dd38231d4821c607a82564182fbfdf706c636f4cab7ebd
SSDEEP

3072:dkv57OsX2T3TH0XzZP1Pwe8UXDCkCT17EM9laXTjww:g57L2DTH0Z1Ie8YD2vanw

Score

1^/10

Malware Config

Signatures

Files

VSTOInstaller.exe
.exe windows:5 windows x64 arch:x64

a5583e8f0836fcc5e62ce3f0d5f56d07

Code Sign

33:00:00:03:4d:4e:91:a6:1a:28:b0:78:8f:00:00:00:00:03:4d
Certificate

Issuer

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

16/03/2023, 18:43

Not After

14/03/2024, 18:43

Subject

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

Extended Key Usages

ExtKeyUsageCodeSigning

61:0e:90:d2:00:00:00:00:00:03
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

08/07/2011, 20:59

Not After

08/07/2026, 21:09

Subject

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

16:24:12:c3:49:c7:4b:bf:e7:48:a5:10:d7:1d:31:37:3d:ad:be:d3:1d:f5:32:a1:c5:f2:ac:a9:c9:da:94:b2
Signer

Actual PE Digest

16:24:12:c3:49:c7:4b:bf:e7:48:a5:10:d7:1d:31:37:3d:ad:be:d3:1d:f5:32:a1:c5:f2:ac:a9:c9:da:94:b2

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

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

VSTOInstaller.pdb

Imports

advapi32

RegOpenKeyExW
RegCloseKey
RegQueryValueExW

kernel32

FreeLibrary
LoadLibraryW
GetModuleFileNameW
lstrlenW
RaiseException
GetLastError
GetProcAddress
GetCommandLineW
WaitForSingleObject
GetExitCodeProcess
CloseHandle
GetSystemDefaultUILanguage
GetUserDefaultUILanguage
FlushFileBuffers
CreateFileW
WriteConsoleW
SetStdHandle
HeapReAlloc
HeapSize
GetStringTypeW
LCMapStringW
HeapAlloc
RtlPcToFileHeader
MultiByteToWideChar
GetConsoleMode
GetConsoleCP
WideCharToMultiByte
SetFilePointer
SetUnhandledExceptionFilter
GetModuleHandleW
ExitProcess
DecodePointer
WriteFile
GetStdHandle
RtlUnwindEx
FreeEnvironmentStringsW
GetEnvironmentStringsW
SetHandleCount
InitializeCriticalSectionAndSpinCount
GetFileType
GetStartupInfoW
DeleteCriticalSection
EncodePointer
FlsGetValue
FlsSetValue
FlsFree
SetLastError
GetCurrentThreadId
FlsAlloc
HeapSetInformation
GetVersion
HeapCreate
QueryPerformanceCounter
GetTickCount
GetCurrentProcessId
GetSystemTimeAsFileTime
HeapFree
TerminateProcess
GetCurrentProcess
UnhandledExceptionFilter
IsDebuggerPresent
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
GetCPInfo
GetACP
GetOEMCP
IsValidCodePage
LeaveCriticalSection
EnterCriticalSection
Sleep

oleaut32

VariantInit
VarBstrCat
SysAllocStringLen
SysFreeString
VariantClear
SysStringLen
GetErrorInfo

ole32

CoInitializeEx
CoUninitialize

shell32

ShellExecuteExW
SHGetFolderPathW

shlwapi

PathFileExistsW
PathAppendW
PathStripPathW
PathRemoveFileSpecW

user32

MessageBoxW
LoadStringW

Sections

.text
Size: 58KB - Virtual size: 58KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 19KB - Virtual size: 18KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 5KB - Virtual size: 14KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

a5583e8f0836fcc5e62ce3f0d5f56d07

Code Sign

33:00:00:03:4d:4e:91:a6:1a:28:b0:78:8f:00:00:00:00:03:4dCertificate

Extended Key Usages

61:0e:90:d2:00:00:00:00:00:03Certificate

Key Usages

16:24:12:c3:49:c7:4b:bf:e7:48:a5:10:d7:1d:31:37:3d:ad:be:d3:1d:f5:32:a1:c5:f2:ac:a9:c9:da:94:b2Signer

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

advapi32

kernel32

oleaut32

ole32

shell32

shlwapi

user32

Sections

.text Size: 58KB - Virtual size: 58KB

.rdata Size: 19KB - Virtual size: 18KB

.data Size: 5KB - Virtual size: 14KB

.pdata Size: 3KB - Virtual size: 3KB

.rsrc Size: 1KB - Virtual size: 1KB

.reloc Size: 1KB - Virtual size: 1KB

33:00:00:03:4d:4e:91:a6:1a:28:b0:78:8f:00:00:00:00:03:4d
Certificate

61:0e:90:d2:00:00:00:00:00:03
Certificate

16:24:12:c3:49:c7:4b:bf:e7:48:a5:10:d7:1d:31:37:3d:ad:be:d3:1d:f5:32:a1:c5:f2:ac:a9:c9:da:94:b2
Signer

.text
Size: 58KB - Virtual size: 58KB

.rdata
Size: 19KB - Virtual size: 18KB

.data
Size: 5KB - Virtual size: 14KB

.pdata
Size: 3KB - Virtual size: 3KB

.rsrc
Size: 1KB - Virtual size: 1KB

.reloc
Size: 1KB - Virtual size: 1KB