2024-02-01_c478a15acb0b83c9b6395a80e6683fb4_cobalt-strike_ryuk

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General

Target

2024-02-01_c478a15acb0b83c9b6395a80e6683fb4_cobalt-strike_ryuk
Size

301KB
MD5

c478a15acb0b83c9b6395a80e6683fb4
SHA1

220e568597fe6afb451149ca592b6f9c1c24530a
SHA256

449455d535c5436ff04540655c09243b98f5192f47d6048fb0a588441b6f2d10
SHA512

74d8857d59e9faa5eff9175cd65c16cc79e47702266106e4d81683e870409f0c997113589bd6730d501fda8309048b0e3f44ee9f60a511ad57ffa653fc76e90c
SSDEEP

6144:jBVQDogNAcjkmUHV68F7wW64U45zQ+1ooZJHvXCj73i43Npk0RqSPZpM4KiUaFgo:qogNAcjkmUHV68F7wW64U45zd1ooZU7b

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-02-01_c478a15acb0b83c9b6395a80e6683fb4_cobalt-strike_ryuk

Files

2024-02-01_c478a15acb0b83c9b6395a80e6683fb4_cobalt-strike_ryuk
.exe windows:6 windows x64 arch:x64

76a742be8a5ee218e41d97cf9234e90e

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

advapi32

CryptAcquireContextA
CryptCreateHash
CryptDecrypt
CryptDeriveKey
CryptDestroyHash
CryptDestroyKey
CryptHashData
CryptReleaseContext
GetUserNameA
RegCreateKeyExA
RegQueryValueExA

kernel32

CloseHandle
CompareStringW
CreateFileMappingW
CreateFileW
CreateMutexA
DeleteCriticalSection
EnterCriticalSection
ExitProcess
FindClose
FindFirstFileExW
FindNextFileW
FindResourceA
FlushFileBuffers
FlushInstructionCache
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
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
LCMapStringW
LeaveCriticalSection
LoadLibraryExW
LoadLibraryW
LoadResource
LockResource
MapViewOfFile
MultiByteToWideChar
OutputDebugStringA
QueryPerformanceCounter
RaiseException
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwindEx
RtlVirtualUnwind
SetEnvironmentVariableW
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
SizeofResource
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
UnmapViewOfFile
VirtualAlloc
VirtualFree
VirtualProtect
WideCharToMultiByte
WriteConsoleW
WriteFile
lstrcmpA

user32

wsprintfA

wininet

InternetCloseHandle
InternetOpenA
InternetOpenUrlA

Sections

.text
Size: 238KB - Virtual size: 238KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 43KB - Virtual size: 43KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 7KB - Virtual size: 39KB

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

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gehcont
Size: 512B - Virtual size: 32B

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

.rsrc
Size: 1KB - Virtual size: 1KB

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

76a742be8a5ee218e41d97cf9234e90e

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

kernel32

user32

wininet

Sections

.text Size: 238KB - Virtual size: 238KB

.rdata Size: 43KB - Virtual size: 43KB

.data Size: 7KB - Virtual size: 39KB

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

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

.gehcont Size: 512B - Virtual size: 32B

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

_RDATA Size: 512B - Virtual size: 244B

.rsrc Size: 1KB - Virtual size: 1KB

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

.text
Size: 238KB - Virtual size: 238KB

.rdata
Size: 43KB - Virtual size: 43KB

.data
Size: 7KB - Virtual size: 39KB

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

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

.gehcont
Size: 512B - Virtual size: 32B

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

_RDATA
Size: 512B - Virtual size: 244B

.rsrc
Size: 1KB - Virtual size: 1KB

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