Behavioral task
behavioral1
Sample
4b76ad80e9ce4c503bde0e476a88447426fc38315d440d22926627295e1b0ec6.exe
Resource
win10-20240404-en
General
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Target
4b76ad80e9ce4c503bde0e476a88447426fc38315d440d22926627295e1b0ec6.7z
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Size
12.2MB
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MD5
42e28c50a3c280f5f57961b1769fd43d
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SHA1
a18c1870edc7f5acc1cc0b18a80f0025e17540c4
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SHA256
3c44aa92b98154d0da849e07e0a73d2ec89189ddd2f82963b6325c5c9b443e40
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SHA512
f8726d39a3b1726e88baabd12a6f91fca3e0fab9db40e114ec114b823e2988c2b48556af537666d8feb9ac4d994c2a6e8e726140d5dec910fddd62232365e178
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SSDEEP
393216:Ly0FirCJaRi+Zhe4+2cBCs5aUJsJRjQ9pns:Ly0FirCJaR9i4YBC4Gbjws
Malware Config
Signatures
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Cyrat executable 1 IoCs
Processes:
resource yara_rule static1/unpack001/4b76ad80e9ce4c503bde0e476a88447426fc38315d440d22926627295e1b0ec6.exe family_cyrat -
Cyrat family
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Detects Pyinstaller 1 IoCs
Processes:
resource yara_rule static1/unpack001/4b76ad80e9ce4c503bde0e476a88447426fc38315d440d22926627295e1b0ec6.exe pyinstaller -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource unpack001/4b76ad80e9ce4c503bde0e476a88447426fc38315d440d22926627295e1b0ec6.exe
Files
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4b76ad80e9ce4c503bde0e476a88447426fc38315d440d22926627295e1b0ec6.7z.7z
Password: infected
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4b76ad80e9ce4c503bde0e476a88447426fc38315d440d22926627295e1b0ec6.exe.exe windows:5 windows x64 arch:x64
Password: infected
58053a2a3020fdc7713b576ad93bf7bd
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
kernel32
GetModuleFileNameW
GetProcAddress
GetCommandLineW
GetEnvironmentVariableW
SetEnvironmentVariableW
ExpandEnvironmentStringsW
GetTempPathW
WaitForSingleObject
SetDllDirectoryW
GetExitCodeProcess
CreateProcessW
GetStartupInfoW
LoadLibraryExW
CreateDirectoryW
FormatMessageW
LoadLibraryA
MultiByteToWideChar
WideCharToMultiByte
Sleep
GetLastError
SetEndOfFile
HeapReAlloc
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetModuleHandleW
RtlUnwindEx
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
GetCommandLineA
ReadFile
CreateFileW
GetDriveTypeW
GetFileType
CloseHandle
PeekNamedPipe
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
GetFullPathNameW
GetFullPathNameA
RemoveDirectoryW
FindClose
FindFirstFileExW
FindNextFileW
SetStdHandle
SetConsoleCtrlHandler
DeleteFileW
GetStdHandle
WriteFile
ExitProcess
GetModuleHandleExW
GetACP
HeapFree
HeapAlloc
GetConsoleMode
ReadConsoleW
SetFilePointerEx
GetConsoleCP
CompareStringW
LCMapStringW
GetCurrentDirectoryW
FlushFileBuffers
SetEnvironmentVariableA
GetFileAttributesExW
IsValidCodePage
GetOEMCP
GetCPInfo
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetStringTypeW
GetProcessHeap
WriteConsoleW
GetTimeZoneInformation
HeapSize
RaiseException
advapi32
ConvertStringSecurityDescriptorToSecurityDescriptorW
ws2_32
ntohl
Sections
.text Size: 132KB - Virtual size: 131KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 62KB - Virtual size: 61KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 3KB - Virtual size: 44KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 7KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gfids Size: 512B - Virtual size: 172B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 122KB - Virtual size: 122KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 2KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
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Microsoft_dll_fix.pyc