Static task
static1
Behavioral task
behavioral1
Sample
SteamtoolsSetup.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
SteamtoolsSetup.exe
Resource
win10v2004-20241007-en
General
-
Target
SteamtoolsSetup.exe
-
Size
931KB
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MD5
437a78852ca72c066ab69826eaec8fda
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SHA1
067f013edc49612d2ad97be0ca19bd5aba144f10
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SHA256
8b0c4556e30ab51385a4d4cb915d94f61a74fb57a235bac0ef8929eedcbcb300
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SHA512
945495fe067a518387a9a6fad028c29f9a23cfc2b98838c061b9e53320d91662089c532a44cb4c2dac1504c8a3adcae03c66ecdaf67919f898f3ca2e91ad304e
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SSDEEP
24576:5muyG01IeGKHK8LKr7r0sUpPFXzcuTqLbTB1Kay2y/Cp5h1T4q:1KHP07r0sUr7TqLbTB1KayEpH1T4
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource SteamtoolsSetup.exe
Files
-
SteamtoolsSetup.exe.exe windows:6 windows x64 arch:x64
23f1572effc43fb62e6862a4fca7ee01
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
crypt32
CertFreeCertificateChainEngine
CertFreeCertificateChain
CertCreateCertificateChainEngine
CryptQueryObject
CertGetNameStringA
CertFindExtension
CertAddCertificateContextToStore
CryptDecodeObjectEx
PFXImportCertStore
CryptStringToBinaryA
CertFreeCertificateContext
CertFindCertificateInStore
CertEnumCertificatesInStore
CertCloseStore
CertGetCertificateChain
CertOpenStore
wldap32
ord211
ord46
ord143
ord60
ord50
ord41
ord22
ord26
ord27
ord32
ord33
ord35
ord79
ord30
ord200
ord301
ord45
ws2_32
send
recv
closesocket
accept
WSACleanup
WSAStartup
htonl
setsockopt
ntohs
htons
getsockopt
getsockname
getpeername
connect
bind
WSASetLastError
select
__WSAFDIsSet
inet_pton
WSAGetLastError
socket
listen
ioctlsocket
ntohl
getaddrinfo
freeaddrinfo
WSACloseEvent
WSACreateEvent
WSAEnumNetworkEvents
WSAEventSelect
recvfrom
sendto
gethostname
WSAIoctl
kernel32
HeapReAlloc
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
GetLocaleInfoW
LCMapStringW
CompareStringW
FlsFree
FlsSetValue
FlsGetValue
FlsAlloc
CreateProcessW
GetExitCodeProcess
WaitForSingleObject
HeapFree
FlushFileBuffers
HeapAlloc
GetConsoleOutputCP
ReadConsoleW
GetConsoleMode
GetCommandLineW
GetCommandLineA
ExitProcess
GetModuleFileNameW
WriteFile
SetFilePointerEx
FileTimeToSystemTime
GetDriveTypeW
GetModuleHandleExW
FreeLibraryAndExitThread
ExitThread
CreateThread
LoadLibraryExW
TlsFree
GetStdHandle
SetCurrentConsoleFontEx
GetFileAttributesW
MultiByteToWideChar
WriteConsoleW
SetConsoleCP
SetConsoleOutputCP
GetLastError
SetLastError
FormatMessageW
QueryPerformanceCounter
GetTickCount
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionEx
DeleteCriticalSection
Sleep
SleepEx
QueryPerformanceFrequency
GetSystemDirectoryA
FreeLibrary
GetModuleHandleA
GetProcAddress
LoadLibraryA
MoveFileExA
CloseHandle
WaitForSingleObjectEx
WideCharToMultiByte
GetEnvironmentVariableA
GetFileType
ReadFile
PeekNamedPipe
WaitForMultipleObjects
VerSetConditionMask
VerifyVersionInfoA
CreateFileA
GetFileSizeEx
TlsSetValue
GetTimeZoneInformation
IsValidCodePage
GetACP
GetOEMCP
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableW
GetProcessHeap
DeleteFileW
SetEndOfFile
HeapSize
SetStdHandle
SystemTimeToTzSpecificLocalTime
TlsGetValue
TlsAlloc
InitializeCriticalSectionAndSpinCount
RtlUnwind
RaiseException
LocalFree
FormatMessageA
GetLocaleInfoEx
GetCurrentDirectoryW
CreateDirectoryW
CreateFileW
FindClose
FindFirstFileW
FindFirstFileExW
FindNextFileW
GetFileAttributesExW
GetFileInformationByHandle
GetFullPathNameW
SetFileInformationByHandle
GetTempPathW
AreFileApisANSI
GetModuleHandleW
MoveFileExW
GetFileInformationByHandleEx
GetStringTypeW
GetSystemTimeAsFileTime
EncodePointer
DecodePointer
LCMapStringEx
GetCPInfo
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
GetCurrentProcessId
GetCurrentThreadId
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
RtlUnwindEx
RtlPcToFileHeader
advapi32
RegOpenKeyExA
RegQueryValueExA
RegCloseKey
CryptAcquireContextA
CryptReleaseContext
CryptGetHashParam
CryptGenRandom
CryptCreateHash
CryptHashData
CryptDestroyHash
CryptDestroyKey
CryptImportKey
CryptEncrypt
shell32
SHGetFolderPathW
ShellExecuteW
ole32
CoCreateInstance
CoUninitialize
CoInitialize
Sections
.text Size: 667KB - Virtual size: 666KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 180KB - Virtual size: 179KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 7KB - Virtual size: 13KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 29KB - Virtual size: 28KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 42KB - Virtual size: 42KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ