Ryomi[.]exe | Triage

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General

Target

Ryomi.exe
Size

11.4MB
MD5

72f8c47d139df861e5b0bf939ac35851
SHA1

8f7a5c50cddf3fe839d0c6c190e7c4ae237d1e4c
SHA256

e2a45fc60520e9b376a2fda8b05cf9c769914d2aae1860f0b1d25093d2a0fbcd
SHA512

525d4ec3f06da1f9ae102a10ecd1cae0c455bdd4485fd4e0ff77c48e997a5bd9d1f02bb0110fcec7d30bf2ef98b936291a01733377d598c3e808028993d398db
SSDEEP

196608:mkdpaqcDT0ZkbkxqBINkT54Hu6vI6U1OZKX9pIwH7H9xWqcmDYPoaq1rQ:/dgqccZkAxqBtV4Hu6vI68TIu9wqFk19

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Ryomi.exe

Files

Ryomi.exe
.exe windows:6 windows x64 arch:x64

8e3dad4d4ea6736338bcc4aca7b446c9

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

shell32

SHFileOperationW
SHGetFolderPathW
CommandLineToArgvW

kernel32

SetLastError
WriteConsoleW
HeapReAlloc
CreateDirectoryW
SizeofResource
SetConsoleCtrlHandler
GetCommandLineW
GetStdHandle
WriteFile
TerminateProcess
GetModuleFileNameW
SetEnvironmentVariableW
GetTempPathW
FindResourceA
WaitForSingleObject
CreateFileW
GetFileAttributesW
Sleep
GetLastError
LockResource
CloseHandle
LoadResource
GetProcAddress
GetCurrentProcessId
CreateProcessW
WideCharToMultiByte
GetSystemTimeAsFileTime
FormatMessageA
GetExitCodeProcess
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentThreadId
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
HeapSize
RtlUnwindEx
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
EncodePointer
RaiseException
RtlPcToFileHeader
ExitProcess
GetModuleHandleExW
GetCommandLineA
HeapAlloc
MultiByteToWideChar
HeapFree
FlsAlloc
FlsGetValue
FlsSetValue
FlsFree
CompareStringW
LCMapStringW
GetFileType
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetStdHandle
GetStringTypeW
GetProcessHeap
FlushFileBuffers
GetConsoleOutputCP
GetConsoleMode
GetFileSizeEx
SetFilePointerEx

Sections

.text
Size: 128KB - Virtual size: 127KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 50KB - Virtual size: 50KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 147KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 6KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 11.2MB - Virtual size: 11.2MB

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

Sharing

General

Malware Config

Signatures

Files

8e3dad4d4ea6736338bcc4aca7b446c9

Headers

DLL Characteristics

File Characteristics

Imports

shell32

kernel32

Sections

.text Size: 128KB - Virtual size: 127KB

.rdata Size: 50KB - Virtual size: 50KB

.data Size: 3KB - Virtual size: 147KB

.pdata Size: 6KB - Virtual size: 5KB

.rsrc Size: 11.2MB - Virtual size: 11.2MB

.reloc Size: 2KB - Virtual size: 1KB

.text
Size: 128KB - Virtual size: 127KB

.rdata
Size: 50KB - Virtual size: 50KB

.data
Size: 3KB - Virtual size: 147KB

.pdata
Size: 6KB - Virtual size: 5KB

.rsrc
Size: 11.2MB - Virtual size: 11.2MB

.reloc
Size: 2KB - Virtual size: 1KB