steamguard[.]exe

Sharing

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General

Target

steamguard.exe
Size

11.5MB
MD5

5eaf180900c2ad093dd83bf9d2406772
SHA1

d5f2af065f791aba356feb9f14c5c9b69be28da1
SHA256

e4ee0253169dd0b5de80874c95f2fe4afbd72369abb4f7a18c5ebde7c966689e
SHA512

8bcaf7ab0270df5daf9161da63131236bc7df8b6354b98d23042d2baee0661bf62f13b79bf1fa9893fd59fe8ddbcff8986da755f6c498a32c75cdf7f5ed68318
SSDEEP

98304:G4qPr5paisjpWmb/mutK0XdFXkcTIyL+TMTd2cIN/X+B2oYLmybvk4k7TTM1zDNh:wPr5QiAFbXkMlVkbvB

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
steamguard.exe

Files

steamguard.exe
.exe windows:4 windows x64 arch:x64

703eb32129b4a52592e3258ddb1a5016

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

advapi32

CredDeleteW
CredFree
CredReadW
CredWriteW
RegCloseKey
RegOpenKeyExW
RegQueryValueExW
SystemFunction036

bcrypt

BCryptGenRandom

kernel32

AcquireSRWLockExclusive
AcquireSRWLockShared
AddVectoredExceptionHandler
CloseHandle
CopyFileExW
CreateConsoleScreenBuffer
CreateDirectoryW
CreateFileA
CreateFileMappingA
CreateFileW
CreateIoCompletionPort
CreateSemaphoreW
CreateThread
CreateToolhelp32Snapshot
CreateWaitableTimerExW
DeleteFileW
DuplicateHandle
ExitProcess
FillConsoleOutputAttribute
FillConsoleOutputCharacterA
FindClose
FindFirstFileW
FindNextFileW
FlushFileBuffers
FormatMessageW
GetCommandLineW
GetComputerNameExW
GetConsoleMode
GetConsoleScreenBufferInfo
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentThread
GetEnvironmentVariableW
GetFileInformationByHandle
GetFileInformationByHandleEx
GetFileType
GetFinalPathNameByHandleW
GetFullPathNameW
GetLastError
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleW
GetNumberOfConsoleInputEvents
GetProcAddress
GetProcessHeap
GetQueuedCompletionStatusEx
GetStartupInfoA
GetStdHandle
GetSystemInfo
GetSystemTimeAsFileTime
HeapAlloc
HeapFree
HeapReAlloc
InitOnceBeginInitialize
InitOnceComplete
MapViewOfFile
Module32FirstW
Module32NextW
MultiByteToWideChar
PostQueuedCompletionStatus
QueryPerformanceCounter
QueryPerformanceFrequency
ReadConsoleInputW
ReadConsoleW
ReleaseSRWLockExclusive
ReleaseSRWLockShared
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
SetConsoleActiveScreenBuffer
SetConsoleCursorPosition
SetConsoleMode
SetConsoleTextAttribute
SetFileCompletionNotificationModes
SetFileInformationByHandle
SetFilePointerEx
SetHandleInformation
SetLastError
SetThreadStackGuarantee
SetUnhandledExceptionFilter
SetWaitableTimer
Sleep
SleepConditionVariableSRW
SwitchToThread
SystemTimeToFileTime
SystemTimeToTzSpecificLocalTime
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryAcquireSRWLockExclusive
UnmapViewOfFile
WaitForMultipleObjects
WaitForSingleObject
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteConsoleW
lstrlenW
DeleteCriticalSection
EnterCriticalSection
GetCurrentProcessId
GetCurrentThreadId
GetTickCount
InitializeCriticalSection
LeaveCriticalSection
RaiseException
RtlAddFunctionTable
RtlUnwindEx
TerminateProcess
UnhandledExceptionFilter
VirtualProtect
VirtualQuery

ntdll

NtCancelIoFileEx
NtCreateFile
NtDeviceIoControlFile
NtReadFile
NtWriteFile
RtlNtStatusToDosError
__C_specific_handler
memcmp
memcpy
memmove
memset
strlen

ole32

CoTaskMemFree

shell32

SHGetKnownFolderPath

ws2_32

WSACleanup
WSAGetLastError
WSAIoctl
WSASend
WSASocketW
WSAStartup
bind
closesocket
connect
freeaddrinfo
getaddrinfo
getpeername
getsockname
getsockopt
ioctlsocket
recv
send
setsockopt
shutdown

msvcrt

__dllonexit
__getmainargs
__initenv
__iob_func
__lconv_init
__set_app_type
__setusermatherr
_acmdln
_amsg_exit
_cexit
_fmode
_fpreset
_initterm
_lock
_onexit
_unlock
abort
atexit
calloc
exit
fprintf
free
fwrite
malloc
signal
strncmp
vfprintf

Sections

.text
Size: 5.0MB - Virtual size: 5.0MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 2.0MB - Virtual size: 2.0MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.pdata
Size: 67KB - Virtual size: 67KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.xdata
Size: 304KB - Virtual size: 304KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 3KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 7KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 120B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 104B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

/4
Size: 3KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/19
Size: 350KB - Virtual size: 349KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/35
Size: 512B - Virtual size: 270B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/51
Size: 943KB - Virtual size: 943KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/63
Size: 17KB - Virtual size: 16KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/77
Size: 240KB - Virtual size: 239KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/89
Size: 8KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/102
Size: 714KB - Virtual size: 714KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/113
Size: 286KB - Virtual size: 286KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/124
Size: 328KB - Virtual size: 328KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/137
Size: 370KB - Virtual size: 370KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

703eb32129b4a52592e3258ddb1a5016

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

bcrypt

kernel32

ntdll

ole32

shell32

ws2_32

msvcrt

Sections

.text Size: 5.0MB - Virtual size: 5.0MB

.data Size: 3KB - Virtual size: 1KB

.rdata Size: 2.0MB - Virtual size: 2.0MB

.pdata Size: 67KB - Virtual size: 67KB

.xdata Size: 304KB - Virtual size: 304KB

.bss Size: - Virtual size: 3KB

.idata Size: 7KB - Virtual size: 7KB

.CRT Size: 512B - Virtual size: 120B

.tls Size: 512B - Virtual size: 104B

/4 Size: 3KB - Virtual size: 2KB

/19 Size: 350KB - Virtual size: 349KB

/35 Size: 512B - Virtual size: 270B

/51 Size: 943KB - Virtual size: 943KB

/63 Size: 17KB - Virtual size: 16KB

/77 Size: 240KB - Virtual size: 239KB

/89 Size: 8KB - Virtual size: 8KB

/102 Size: 714KB - Virtual size: 714KB

/113 Size: 286KB - Virtual size: 286KB

/124 Size: 328KB - Virtual size: 328KB

/137 Size: 370KB - Virtual size: 370KB

.text
Size: 5.0MB - Virtual size: 5.0MB

.data
Size: 3KB - Virtual size: 1KB

.rdata
Size: 2.0MB - Virtual size: 2.0MB

.pdata
Size: 67KB - Virtual size: 67KB

.xdata
Size: 304KB - Virtual size: 304KB

.bss
Size: - Virtual size: 3KB

.idata
Size: 7KB - Virtual size: 7KB

.CRT
Size: 512B - Virtual size: 120B

.tls
Size: 512B - Virtual size: 104B

/4
Size: 3KB - Virtual size: 2KB

/19
Size: 350KB - Virtual size: 349KB

/35
Size: 512B - Virtual size: 270B

/51
Size: 943KB - Virtual size: 943KB

/63
Size: 17KB - Virtual size: 16KB

/77
Size: 240KB - Virtual size: 239KB

/89
Size: 8KB - Virtual size: 8KB

/102
Size: 714KB - Virtual size: 714KB

/113
Size: 286KB - Virtual size: 286KB

/124
Size: 328KB - Virtual size: 328KB

/137
Size: 370KB - Virtual size: 370KB