Static task
static1
Behavioral task
behavioral1
Sample
2024-06-03_5496313b83ccce9a11fd94c70da68ace_ryuk.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-06-03_5496313b83ccce9a11fd94c70da68ace_ryuk.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-03_5496313b83ccce9a11fd94c70da68ace_ryuk
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Size
127KB
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MD5
5496313b83ccce9a11fd94c70da68ace
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SHA1
62a643f171d81511912f60197f062f6b1e79bab9
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SHA256
8862b060db997bc9077e3bece06529c1c116af379985f6138a07ab5fde61b54c
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SHA512
0015d7342d3ae7c247bab7e7a3489b5887562c6f93e36f7483f9f2910e060680cfbd84c51df94d1bb4ba62b4d86d1382023f19e0fd1308f56bea050bcb086732
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SSDEEP
3072:3jdVRK8n0oJ6RlWPSuIZuQqEbkPnZCX/VvCN:zdVw80oJ6RGSuIZP1EN
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource 2024-06-03_5496313b83ccce9a11fd94c70da68ace_ryuk
Files
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2024-06-03_5496313b83ccce9a11fd94c70da68ace_ryuk.exe windows:5 windows x86 arch:x86
2ce62b0c0226079a88a01c701dbee7b9
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
kernel32
GetCurrentProcess
GetCurrentThread
SetLastError
Sleep
CloseHandle
LoadLibraryA
WinExec
GetProcAddress
CreateFileW
DecodePointer
WriteConsoleW
SetFilePointerEx
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
IsProcessorFeaturePresent
GetModuleHandleW
TerminateProcess
RtlUnwind
GetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
ExitProcess
GetModuleHandleExW
GetStdHandle
WriteFile
GetModuleFileNameW
MultiByteToWideChar
WideCharToMultiByte
GetACP
HeapFree
HeapAlloc
GetStringTypeW
LCMapStringW
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetOEMCP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetStdHandle
GetFileType
GetProcessHeap
HeapSize
HeapReAlloc
FlushFileBuffers
GetConsoleCP
GetConsoleMode
RaiseException
advapi32
CloseServiceHandle
ws2_32
htons
htonl
bind
inet_addr
Sections
.text Size: 83KB - Virtual size: 82KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 22KB - Virtual size: 22KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 20KB - Virtual size: 49KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.gfids Size: 512B - Virtual size: 172B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ