steam[.]exe | Triage

Resubmissions

16/03/2024, 03:17

240316-dtd95aag5y 10

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General

Target

steam.exe
Size

4.2MB
MD5

66196820b7863d1f306ce94750c3d5fc
SHA1

7594c81d154dbdf54680f0c53479fbc4791b7f4f
SHA256

ce5146211590c7a566d30aafa1629cd42cd6d46f1222b158a0325b7408683a46
SHA512

aa7175e9ae11fce483e2f7d2de94d84918b5276817f47b85a55beb73d16095c4562d25b53f56b510bdb2a64c07e5f3139f201760a94323759fcbcfbe353aeeef
SSDEEP

98304:LsbltXkUt8hD3vZerkSFSYGBDVfSXNiu0fEL8:AJtpadd2xlkueEL8

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
steam.exe

Files

steam.exe
.exe windows:6 windows x86 arch:x86

70710dd0993d00abea20816af9954c33

Headers

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE

PDB Paths

c:\buildslave\steam_rel_client_win32\build\src\steamexe\Release\steamexe.pdb

Imports

kernel32

SetLastError
SystemTimeToFileTime
GetSystemTime
SetConsoleMode
ConvertThreadToFiber
ConvertFiberToThread
CreateFiber
DeleteFiber
SwitchToFiber
GetEnvironmentVariableW
ReadConsoleA
WriteFile
RemoveDirectoryW
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetOEMCP
GetACP
IsValidCodePage
HeapReAlloc
GetTimeZoneInformation
SetConsoleCtrlHandler
SetFilePointerEx
LCMapStringW
CompareStringW
HeapAlloc
HeapFree
HeapValidate
HeapSize
WriteConsoleW
GetStdHandle
GetConsoleOutputCP
ReadConsoleW
GetConsoleMode
PeekNamedPipe
GetFileType
ExitProcess
InterlockedPushEntrySList
RtlUnwind
GetStartupInfoW
InitializeSListHead
IsProcessorFeaturePresent
UnhandledExceptionFilter
CreateEventW
VerifyVersionInfoW
FindResourceA
LocalFree
LocalAlloc
GlobalLock
GlobalUnlock
GetCurrentProcess
GlobalAlloc
SizeofResource
LockResource
LoadResource
GetModuleFileNameW
OpenProcess
GetExitCodeProcess
SetStdHandle
GetFullPathNameW
DeleteFileW
CreateDirectoryW
VerSetConditionMask
MulDiv
FreeLibrary
LoadLibraryA
GetProcAddress
Sleep
GetCurrentThreadId
DeviceIoControl
GetFileAttributesW
FindFirstFileW
FindClose
CreateFileW
MoveFileExW
GetModuleHandleA
GetTickCount
CreateFileA
LeaveCriticalSection
EnterCriticalSection
GetLastError
WaitForSingleObjectEx
GetCPInfo
DecodePointer
EncodePointer
ProcessIdToSessionId
GetCurrentProcessId
GetStringTypeW
InitOnceComplete
InitOnceBeginInitialize
InitializeCriticalSectionEx
AcquireSRWLockExclusive
OpenEventA
SetEvent
ReleaseSRWLockExclusive
InitializeSRWLock
SetProcessAffinityMask
GetProcessHeaps
DebugBreak
SetErrorMode
CloseHandle
RemoveDirectoryA
GetFileAttributesA
MultiByteToWideChar
OutputDebugStringA
SystemTimeToTzSpecificLocalTime
GetCurrentDirectoryA
GetCurrentDirectoryW
FindNextFileW
WideCharToMultiByte
GetModuleHandleW
LoadLibraryExA
LoadLibraryExW
LoadLibraryW
FindFirstFileExW
FlushFileBuffers
GetDiskFreeSpaceA
GetDiskFreeSpaceExW
GetDriveTypeW
GetFileAttributesExW
GetFileInformationByHandle
GetFileSizeEx
GetFileTime
ReadFile
SetEndOfFile
SetFileAttributesW
SetFilePointer
SetFileTime
SleepEx
GetSystemTimeAsFileTime
CopyFileW
GetDateFormatW
GetTimeFormatW
FileTimeToSystemTime
GlobalFree
SetHandleInformation
VirtualProtect
VirtualQuery
GetModuleFileNameA
GetModuleHandleExA
GetModuleHandleExW
IsBadWritePtr
CreateIoCompletionPort
PostQueuedCompletionStatus
InitializeCriticalSection
DeleteCriticalSection
ResetEvent
WaitForSingleObject
CreateEventA
QueryPerformanceCounter
QueryPerformanceFrequency
GetCommandLineA
GetProcessHeap
HeapSetInformation
HeapLock
HeapUnlock
HeapWalk
HeapQueryInformation
TerminateProcess
GlobalMemoryStatusEx
VirtualAlloc
IsDebuggerPresent
GetCommandLineW
DuplicateHandle
RaiseException
InitializeCriticalSectionAndSpinCount
TryEnterCriticalSection
SwitchToThread
CreateThread
GetCurrentThread
OpenThread
SetThreadPriority
TerminateThread
GetExitCodeThread
SuspendThread
ResumeThread
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
SetThreadAffinityMask
SetEnvironmentVariableW
SetCurrentDirectoryW
OutputDebugStringW
CreateProcessW
GetSystemInfo
GetProcessAffinityMask
SetUnhandledExceptionFilter

user32

CreateWindowExW
RegisterClassExW
DefWindowProcW
PostThreadMessageW
SendMessageW
PeekMessageW
GetProcessWindowStation
GetWindowThreadProcessId
EnumWindows
DispatchMessageW
IsWindowVisible
TranslateMessage
GetMonitorInfoW
MonitorFromWindow
MonitorFromPoint
LoadIconW
LoadCursorW
EnumChildWindows
SetClassLongW
SetWindowLongW
GetWindowLongW
MapWindowPoints
MessageBoxW
GetWindowRect
SetWindowTextW
RedrawWindow
EndPaint
BeginPaint
UpdateWindow
KillTimer
UnregisterClassW
GetClassInfoExW
wsprintfA
DialogBoxParamA
EndDialog
GetDlgItem
SetDlgItemInt
GetDlgItemInt
SetDlgItemTextA
OpenClipboard
CloseClipboard
SetClipboardData
EmptyClipboard
GetWindowTextLengthA
GetDesktopWindow
SetTimer
MsgWaitForMultipleObjects
SetWindowPos
MoveWindow
GetMessageW
ReleaseDC
GetDC
GetUserObjectInformationW
AllowSetForegroundWindow
MessageBoxA
DestroyWindow
ShowWindow

gdi32

AddFontMemResourceEx
TextOutW
CreateDIBSection
SetTextColor
SetBkMode
SetBkColor
SelectObject
RemoveFontMemResourceEx
GetTextExtentPoint32W
GetStockObject
GetDeviceCaps
DeleteObject
DeleteDC
CreateICW
CreateFontW
CreateCompatibleDC
SwapBuffers
SetPixelFormat
ChoosePixelFormat

advapi32

RegisterEventSourceW
DeregisterEventSource
SetSecurityDescriptorDacl
InitializeSecurityDescriptor
RegOpenKeyA
RegSetValueExW
RegSetValueExA
RegQueryValueExW
RegQueryValueExA
ReportEventW
RegOpenKeyExA
RegCreateKeyExA
RegCloseKey

shell32

SHGetFileInfoW
CommandLineToArgvW
ord680
SHGetKnownFolderPath

ole32

CoTaskMemFree

oleaut32

VariantClear

comctl32

InitCommonControlsEx

psapi

GetModuleFileNameExW
GetModuleInformation
GetProcessMemoryInfo

version

VerQueryValueW

crypt32

CertGetCertificateChain
CertOpenStore
CertCloseStore
CertCreateCertificateContext
CertFreeCertificateContext
CertAddCertificateContextToStore
CertFreeCertificateChain

ws2_32

htons
ntohl
ntohs
getaddrinfo
freeaddrinfo
closesocket
shutdown
socket
WSAStartup
WSAGetLastError
WSARecv
WSARecvFrom
WSASend
htonl
WSASocketA
__WSAFDIsSet
select
WSASetLastError
WSACleanup
WSAIoctl
setsockopt
getsockname
ioctlsocket
bind
send
recv
connect
WSASendTo

wsock32

ord1142

bcrypt

BCryptGenRandom

Exports

Exports

CanSetClientBeta
ClientUpdateRunFrame
CreateInterface
ForceUpdateNextRestart
GetBootstrapperVersion
GetClientActualLauncherType
GetClientBootstrapMetrics
GetClientLauncherType
GetClientUpdateBytesDownloaded
GetClientUpdateBytesToDownload
GetCurrentClientBeta
IsCheckingForUpdates
IsClientUpdateAvailable
IsClientUpdateOutOfDiskSpace
IsUpdateSuppressed
PermitDownloadClientUpdates
SetClientBeta
StartCheckingForUpdates
SteamBootstrapper_GetBaseUserDir
SteamBootstrapper_GetEUniverse
SteamBootstrapper_GetForwardedCommandLine
SteamBootstrapper_GetInstallDir
SteamBootstrapper_GetLoggingDir
SteamBootstrapper_SetCommandLineToRunOnExit
g_dwDllEntryThreadId

Sections

.text
Size: 2.9MB - Virtual size: 2.9MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 920KB - Virtual size: 920KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 57KB - Virtual size: 587KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 219KB - Virtual size: 218KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 131KB - Virtual size: 131KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Resubmissions

Sharing

General

Malware Config

Signatures

Files

70710dd0993d00abea20816af9954c33

Headers

File Characteristics

PDB Paths

Imports

kernel32

user32

gdi32

advapi32

shell32

ole32

oleaut32

comctl32

psapi

version

crypt32

ws2_32

wsock32

bcrypt

Exports

Exports

Sections

.text Size: 2.9MB - Virtual size: 2.9MB

.rdata Size: 920KB - Virtual size: 920KB

.data Size: 57KB - Virtual size: 587KB

.rsrc Size: 219KB - Virtual size: 218KB

.reloc Size: 131KB - Virtual size: 131KB

.text
Size: 2.9MB - Virtual size: 2.9MB

.rdata
Size: 920KB - Virtual size: 920KB

.data
Size: 57KB - Virtual size: 587KB

.rsrc
Size: 219KB - Virtual size: 218KB

.reloc
Size: 131KB - Virtual size: 131KB