Behavioral task
behavioral1
Sample
Ro-Byfron-1.0.exe
Resource
win7-20240221-en
General
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Target
Ro-Byfron-1.0.exe
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Size
2.2MB
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MD5
2d1ee30378ae7634acc1b4558cfc170d
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SHA1
8442725a2528e8bb849110987580ca9c110b379b
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SHA256
8f6787371c660aa144c6521491afe4bc05252874c623cec155dac5dae9777ca9
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SHA512
733786a5968e5e552fe18d199424992d745408bac2f206bbc3ea7a8ac4589eeb67e47ff0941c3389691edd1286b5007b629024f1bc1a88e0a0f62f0f48459785
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SSDEEP
24576:OOfsfKozBKHAhRh3KzPSA7R7Bt28SVSVlzyQOQZ9IEb68vL4R+2pYJeCYMXABtW:PBozBdhEV7q8bOQnIFWY+3Je0w+
Malware Config
Signatures
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Invictastealer family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource Ro-Byfron-1.0.exe
Files
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Ro-Byfron-1.0.exe.exe windows:6 windows x64 arch:x64
2d5aa2bacb12ffd10966c83ca6563356
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
CertFindCertificateInStore
CertCloseStore
CertEnumCertificatesInStore
CertFreeCertificateContext
PFXImportCertStore
CryptDecodeObjectEx
CertAddCertificateContextToStore
CertFindExtension
CryptStringToBinaryA
CertGetNameStringA
CryptQueryObject
CertCreateCertificateChainEngine
CertFreeCertificateChainEngine
CertGetCertificateChain
CertOpenStore
CertFreeCertificateChain
kernel32
HeapSize
MultiByteToWideChar
GetTempPathA
FormatMessageW
GetDiskFreeSpaceA
GetLastError
GetFileAttributesA
GetFileAttributesExW
OutputDebugStringW
FlushViewOfFile
CreateFileA
LoadLibraryA
WaitForSingleObjectEx
DeleteFileA
DeleteFileW
HeapReAlloc
CloseHandle
GetSystemInfo
HeapAlloc
HeapCompact
HeapDestroy
UnlockFile
LocalFree
LockFileEx
GetFileSize
DeleteCriticalSection
GetCurrentProcessId
GetProcessHeap
SystemTimeToFileTime
FreeLibrary
WideCharToMultiByte
GetSystemTimeAsFileTime
GetSystemTime
FormatMessageA
CreateFileMappingW
MapViewOfFile
QueryPerformanceCounter
GetTickCount
FlushFileBuffers
InitializeCriticalSectionEx
SleepEx
QueryPerformanceFrequency
GetSystemDirectoryA
GetModuleHandleA
SetLastError
MoveFileExA
GetEnvironmentVariableA
GetStdHandle
GetFileType
PeekNamedPipe
WaitForMultipleObjects
VerSetConditionMask
VerifyVersionInfoA
GetFileSizeEx
FindFirstFileW
FindNextFileW
FindClose
RaiseException
DecodePointer
GetCurrentThreadId
WriteConsoleW
SetEnvironmentVariableW
FreeEnvironmentStringsW
GetFileAttributesW
CreateFileW
WaitForSingleObject
CreateMutexW
GetTempPathW
UnlockFileEx
SetEndOfFile
GetFullPathNameA
SetFilePointer
InitializeCriticalSection
LeaveCriticalSection
LockFile
GetEnvironmentStringsW
GetCommandLineW
GetCommandLineA
GetOEMCP
GetACP
IsValidCodePage
HeapValidate
SetStdHandle
GetCurrentDirectoryW
GetTimeZoneInformation
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
GetLocaleInfoW
LCMapStringW
CompareStringW
GetConsoleOutputCP
ReadConsoleW
GetConsoleMode
GetModuleFileNameW
FileTimeToSystemTime
SystemTimeToTzSpecificLocalTime
GetFileInformationByHandle
GetDriveTypeW
ExitProcess
GetModuleHandleExW
FreeLibraryAndExitThread
ExitThread
CreateThread
LoadLibraryExW
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
RtlPcToFileHeader
InterlockedPushEntrySList
RtlUnwindEx
GetStartupInfoW
IsDebuggerPresent
IsProcessorFeaturePresent
TerminateProcess
RtlUnwind
GetCurrentProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
CreateEventW
ResetEvent
SetEvent
InitializeCriticalSectionAndSpinCount
InitializeSListHead
GetCPInfo
GetStringTypeW
LCMapStringEx
EncodePointer
GetModuleHandleW
OutputDebugStringA
GetDiskFreeSpaceW
WriteFile
GetFullPathNameW
EnterCriticalSection
HeapFree
HeapCreate
TryEnterCriticalSection
ReadFile
AreFileApisANSI
Sleep
GetProcAddress
LoadLibraryW
FindFirstFileExW
UnmapViewOfFile
MoveFileExW
SetFileAttributesW
GetFileTime
SetFilePointerEx
InitializeSRWLock
ReleaseSRWLockExclusive
AcquireSRWLockExclusive
GetExitCodeThread
user32
GetCursorPos
advapi32
CryptCreateHash
RegCloseKey
CryptAcquireContextA
CryptReleaseContext
CryptGetHashParam
CryptGenRandom
CryptHashData
CryptDestroyHash
CryptDestroyKey
CryptImportKey
CryptEncrypt
GetSecurityInfo
shell32
SHGetKnownFolderPath
SHGetFolderPathW
ole32
CoCreateInstance
CoUninitialize
CoTaskMemFree
CoInitialize
bcrypt
BCryptGenerateSymmetricKey
BCryptDestroyKey
BCryptSetProperty
BCryptGetProperty
BCryptOpenAlgorithmProvider
BCryptCloseAlgorithmProvider
BCryptEncrypt
BCryptDeriveKeyPBKDF2
BCryptCreateHash
BCryptGenRandom
BCryptDestroyHash
BCryptHashData
BCryptFinishHash
ws2_32
WSACloseEvent
WSAEnumNetworkEvents
getaddrinfo
ioctlsocket
listen
htonl
accept
select
__WSAFDIsSet
WSACleanup
WSAStartup
WSAIoctl
WSASetLastError
socket
setsockopt
ntohs
htons
getsockopt
getsockname
getpeername
connect
bind
closesocket
WSAGetLastError
send
recv
WSAEventSelect
recvfrom
sendto
gethostname
ntohl
freeaddrinfo
WSACreateEvent
normaliz
IdnToAscii
wldap32
ord22
ord41
ord50
ord45
ord27
ord211
ord46
ord217
ord143
ord32
ord33
ord35
ord79
ord30
ord200
ord26
ord301
ord60
Sections
.text Size: 1.7MB - Virtual size: 1.7MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 336KB - Virtual size: 335KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 30KB - Virtual size: 51KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 71KB - Virtual size: 70KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
_RDATA Size: 512B - Virtual size: 348B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 10KB - Virtual size: 10KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ