2024-09-12_81e132b8fce594c34ea93be5b113b22e_cobalt-strike_ryuk

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General

Target

2024-09-12_81e132b8fce594c34ea93be5b113b22e_cobalt-strike_ryuk
Size

875KB
MD5

81e132b8fce594c34ea93be5b113b22e
SHA1

ec85bb5b14543a9b2b90b6fe5e0620256a5d5254
SHA256

7b794a3dd414009954ded47b8550e11a8757d8be825175b627dacd2fc7906a86
SHA512

39e017e56e3c8828fe67084a16bccb208e3d0ed3018be846b468cf8980e2b2787571462a17d20ca894dfbd4110130563db9c06461fd267f7abf9d7a5724bd2b0
SSDEEP

12288:t//e1qwm0zlPrJB4l2wxqssbSJ5zY2t03RC99QqkirpPNdp4bcZ8Jc1DmM:FiW0zz6jB1AR0WOpPXm+8JEmM

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-09-12_81e132b8fce594c34ea93be5b113b22e_cobalt-strike_ryuk

Files

2024-09-12_81e132b8fce594c34ea93be5b113b22e_cobalt-strike_ryuk
.exe windows:6 windows x64 arch:x64

c808e6c7e3486e841eeb386ea7d0cac1

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

ntdll

RtlCaptureContext
RtlInitUnicodeString
RtlLookupFunctionEntry
RtlUnwindEx
RtlVirtualUnwind
ZwClose
ZwCreateEvent
ZwOpenProcess

kernel32

CloseHandle
CreateFileW
DeleteCriticalSection
EnterCriticalSection
ExitProcess
FindClose
FindFirstFileExW
FindNextFileW
FlushFileBuffers
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetEnvironmentStringsW
GetFileType
GetLastError
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemTimeAsFileTime
GlobalMemoryStatusEx
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
LCMapStringW
LeaveCriticalSection
LoadLibraryExW
MultiByteToWideChar
OutputDebugStringA
QueryPerformanceCounter
RaiseException
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
Sleep
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
VirtualAlloc
VirtualFree
WaitForSingleObject
WideCharToMultiByte
WriteConsoleW
WriteFile

user32

GetKeyboardLayoutList
wvsprintfA

advapi32

AdjustTokenPrivileges
InitializeSecurityDescriptor
LookupPrivilegeValueA
OpenProcessToken
RegCloseKey
RegOpenKeyExW
RegQueryValueExW
SetSecurityDescriptorDacl

shlwapi

wvnsprintfW

Sections

.text
Size: 54KB - Virtual size: 53KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 38KB - Virtual size: 37KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 773KB - Virtual size: 777KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.00cfg
Size: 512B - Virtual size: 40B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gehcont
Size: 512B - Virtual size: 28B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.voltbl
Size: 512B - Virtual size: 42B

_RDATA
Size: 512B - Virtual size: 244B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

x
Size: 512B - Virtual size: 40B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 512B - Virtual size: 396B

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

c808e6c7e3486e841eeb386ea7d0cac1

Headers

DLL Characteristics

File Characteristics

Imports

ntdll

kernel32

user32

advapi32

shlwapi

Sections

.text Size: 54KB - Virtual size: 53KB

.rdata Size: 38KB - Virtual size: 37KB

.data Size: 773KB - Virtual size: 777KB

.pdata Size: 4KB - Virtual size: 3KB

.00cfg Size: 512B - Virtual size: 40B

.gehcont Size: 512B - Virtual size: 28B

.voltbl Size: 512B - Virtual size: 42B

_RDATA Size: 512B - Virtual size: 244B

x Size: 512B - Virtual size: 40B

.rsrc Size: 512B - Virtual size: 396B

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

.text
Size: 54KB - Virtual size: 53KB

.rdata
Size: 38KB - Virtual size: 37KB

.data
Size: 773KB - Virtual size: 777KB

.pdata
Size: 4KB - Virtual size: 3KB

.00cfg
Size: 512B - Virtual size: 40B

.gehcont
Size: 512B - Virtual size: 28B

.voltbl
Size: 512B - Virtual size: 42B

_RDATA
Size: 512B - Virtual size: 244B

x
Size: 512B - Virtual size: 40B

.rsrc
Size: 512B - Virtual size: 396B

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