Static task
static1
Behavioral task
behavioral1
Sample
iyi.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
iyi.exe
Resource
win10v2004-20231023-en
General
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Target
iyi.exe
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Size
3.2MB
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MD5
e061b4b19ab70e99e11fb764b7a8e6ed
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SHA1
a6f05208b7b3d46b44cd8d413ab782fd38dc843c
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SHA256
31fe609d807d86af4eb823355faf35969ecfa5f2cfff265909d6348c5644e79d
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SHA512
77eae91a5f49e0e0268105ee3063427cf99e90aeee9682bd188dafcde6c62e5f81478a8d8bd547cf17d41149777f806937d10b8aec1dc46653a681edb9ea4f45
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SSDEEP
24576:I1dyyz8mJsZg1kIFSBUlnOFhBc1OBwNN685bqgaiKSbb9Z7GpcFz9srUpBf:I1dJsZ2FxnOb7cpXTZscMwp
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource iyi.exe
Files
-
iyi.exe.exe windows:6 windows x86 arch:x86
071337bdac48f0dfbad94960251bde83
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
user32
BeginPaint
UpdateWindow
DialogBoxParamW
PostQuitMessage
LoadCursorW
DefWindowProcW
DestroyWindow
CreateWindowExW
EndDialog
RegisterClassExW
LoadStringW
ShowWindow
LoadIconW
EndPaint
advapi32
RegCreateKeyExW
RegSetValueExW
RegOpenKeyExW
RegCloseKey
ole32
CoInitializeEx
CoCreateInstance
CoUninitialize
shell32
ShellExecuteExW
SHChangeNotify
kernel32
SetStdHandle
SetEnvironmentVariableW
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineW
GetCommandLineA
GetOEMCP
GetProcessHeap
IsValidCodePage
FindNextFileW
FindFirstFileExW
FindClose
CreateFileW
HeapSize
WriteConsoleW
GetACP
HeapReAlloc
ReadConsoleW
DeleteFileW
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
GetLocaleInfoW
Sleep
ReadFile
GetModuleFileNameA
SetPriorityClass
GetCurrentProcess
TerminateProcess
GetModuleFileNameW
SetThreadPriority
CreatePipe
GetEnvironmentVariableW
WaitForSingleObject
OpenProcess
SetFileAttributesW
CreateToolhelp32Snapshot
MultiByteToWideChar
GetFileAttributesA
Process32NextW
GetCurrentThread
lstrcatW
Process32FirstW
CloseHandle
SetFileAttributesA
ExitProcess
CreateProcessA
IsDebuggerPresent
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionEx
DeleteCriticalSection
EncodePointer
DecodePointer
WideCharToMultiByte
LCMapStringEx
GetStringTypeW
SetEndOfFile
GetCPInfo
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
GetStartupInfoW
GetModuleHandleW
LCMapStringW
RtlUnwind
RaiseException
GetLastError
SetLastError
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
GetProcAddress
LoadLibraryExW
GetModuleHandleExW
GetStdHandle
WriteFile
GetFileSizeEx
SetFilePointerEx
GetFileType
FlushFileBuffers
GetConsoleOutputCP
GetConsoleMode
HeapFree
HeapAlloc
CompareStringW
Sections
.text Size: 144KB - Virtual size: 144KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 55KB - Virtual size: 54KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 2.9MB - Virtual size: 2.9MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 92KB - Virtual size: 92KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 9KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
mfvpb Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE