steam[.]exe | Triage

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General

Target

steam.exe
Size

4.2MB
MD5

63b14123bd4eb766f339954478906618
SHA1

239c340119908bf9f9d3a1685db286eb6c0eeb2d
SHA256

3a503badddbf3d1222d869c09395ce6f04c2ecb5e8b89c2cb09ef3cd0e6325d8
SHA512

9f1ed8ca5ba970db27aa745677496bc7b7a05688d0e7c8e630764fda7827e003c7a7a83c77bd0f6c0d2d21b237915c25575ed95c1a196b73e5c919b104880b57
SSDEEP

98304:o2dPGWZcdYCP8hUlgrUhZjAGZq0ubSPl4gMxeO/:pFGWZdfzrUAL0ucOxx/

Score

1^/10

Malware Config

Signatures

Files

steam.exe
.exe windows x86

21c7de7232f2ec44e6c1578098cea6e2

Code Sign

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

01/08/2022, 00:00

Not After

09/11/2031, 23:59

Subject

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

05:9b:1b:57:9e:8e:21:32:e2:39:07:bd:a7:77:75:5c
Certificate

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

01/08/2013, 12:00

Not After

15/01/2038, 12:00

Subject

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

23/03/2022, 00:00

Not After

22/03/2037, 23:59

Subject

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9
Certificate

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

29/04/2021, 00:00

Not After

28/04/2036, 23:59

Subject

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5a
Certificate

Issuer

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Not Before

21/09/2022, 00:00

Not After

21/11/2033, 23:59

Subject

CN=DigiCert Timestamp 2022 - 2,O=DigiCert,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

06:89:b3:bc:eb:44:09:89:0a:32:d7:19:76:b1:32:a4
Certificate

Issuer

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Not Before

07/10/2021, 00:00

Not After

09/10/2024, 23:59

Subject

CN=Valve Corp.,O=Valve Corp.,L=Bellevue,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

70:f4:b6:2e:87:48:6c:91:66:73:b5:ac:eb:d4:1f:2c:12:8e:87:9a:2d:3d:b2:3f:87:4c:f0:9f:d7:d9:e6:d3
Signer

Actual PE Digest

70:f4:b6:2e:87:48:6c:91:66:73:b5:ac:eb:d4:1f:2c:12:8e:87:9a:2d:3d:b2:3f:87:4c:f0:9f:d7:d9:e6:d3

Digest Algorithm

sha256

PE Digest Matches

true

Signature Validations

Trusted

true

Verification

Signing Certificate

CN=Valve Corp.,O=Valve Corp.,L=Bellevue,ST=Washington,C=US

24/03/2023, 17:12
Valid: true

Chain 1

CN=Valve Corp.,O=Valve Corp.,L=Bellevue,ST=Washington,C=US

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Chain 2

CN=Valve Corp.,O=Valve Corp.,L=Bellevue,ST=Washington,C=US

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

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
IMAGE_FILE_32BIT_MACHINE

Imports

kernel32

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

user32

DispatchMessageW
TranslateMessage
GetMessageW
ReleaseDC
GetDC
PeekMessageW
GetWindowThreadProcessId
EnumWindows
SendMessageW
IsWindowVisible
GetProcessWindowStation
MonitorFromWindow
PostThreadMessageW
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
MonitorFromPoint
SetClipboardData
EmptyClipboard
GetWindowTextLengthA
GetDesktopWindow
SetTimer
MsgWaitForMultipleObjects
SetWindowPos
MoveWindow
GetUserObjectInformationW
GetMonitorInfoW
AllowSetForegroundWindow
MessageBoxA
DestroyWindow
DefWindowProcW
RegisterClassExW
CreateWindowExW
CloseClipboard
ShowWindow

gdi32

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

advapi32

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

shell32

SHGetFileInfoW
CommandLineToArgvW
ord680
SHGetKnownFolderPath

ole32

CoTaskMemFree

oleaut32

VariantClear

comctl32

InitCommonControlsEx

psapi

GetModuleFileNameExW
GetProcessMemoryInfo
GetModuleInformation

version

VerQueryValueW

crypt32

CertGetCertificateChain
CertOpenStore
CertCloseStore
CertCreateCertificateContext
CertFreeCertificateContext
CertAddCertificateContextToStore
CertFreeCertificateChain

ws2_32

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

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: 918KB - Virtual size: 917KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 56KB - Virtual size: 586KB

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: 126KB - Virtual size: 125KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

21c7de7232f2ec44e6c1578098cea6e2

Code Sign

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5aCertificate

Key Usages

05:9b:1b:57:9e:8e:21:32:e2:39:07:bd:a7:77:75:5cCertificate

Key Usages

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5bCertificate

Extended Key Usages

Key Usages

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9Certificate

Extended Key Usages

Key Usages

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5aCertificate

Extended Key Usages

Key Usages

06:89:b3:bc:eb:44:09:89:0a:32:d7:19:76:b1:32:a4Certificate

Extended Key Usages

Key Usages

70:f4:b6:2e:87:48:6c:91:66:73:b5:ac:eb:d4:1f:2c:12:8e:87:9a:2d:3d:b2:3f:87:4c:f0:9f:d7:d9:e6:d3Signer

Signature Validations

Verification

24/03/2023, 17:12 Valid: true

Chain 1

Chain 2

Headers

DLL Characteristics

File Characteristics

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: 918KB - Virtual size: 917KB

.data Size: 56KB - Virtual size: 586KB

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

.reloc Size: 126KB - Virtual size: 125KB

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

05:9b:1b:57:9e:8e:21:32:e2:39:07:bd:a7:77:75:5c
Certificate

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9
Certificate

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5a
Certificate

06:89:b3:bc:eb:44:09:89:0a:32:d7:19:76:b1:32:a4
Certificate

70:f4:b6:2e:87:48:6c:91:66:73:b5:ac:eb:d4:1f:2c:12:8e:87:9a:2d:3d:b2:3f:87:4c:f0:9f:d7:d9:e6:d3
Signer

24/03/2023, 17:12
Valid: true

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

.rdata
Size: 918KB - Virtual size: 917KB

.data
Size: 56KB - Virtual size: 586KB

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

.reloc
Size: 126KB - Virtual size: 125KB