2024-05-16_e5df87296d66bb63a4505ad64f5bc82a_cobalt-strike_ryuk

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General

Target

2024-05-16_e5df87296d66bb63a4505ad64f5bc82a_cobalt-strike_ryuk
Size

381KB
MD5

e5df87296d66bb63a4505ad64f5bc82a
SHA1

6c300ecb25880b87a46f89f1802e6a53619d9356
SHA256

a76ace96b4e5e960fd834572031839ce0b4b71d40ee490e6f6b99e8cd82b9139
SHA512

5b50f0899d5fa0361b4c7b743d5e2e22af9059db144822ebbfe3258be8e52d2d4445df87735f4c681257aec5094a4dfb46bc2561440a17378293cc13333e0646
SSDEEP

6144:Y2zNuToZNtIwHN9Hi78nuyPNGKKczGnPHI2NkyXn:zNuTo7tIwbC74ljKcqnPVNky

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-05-16_e5df87296d66bb63a4505ad64f5bc82a_cobalt-strike_ryuk

Files

2024-05-16_e5df87296d66bb63a4505ad64f5bc82a_cobalt-strike_ryuk
.exe windows:5 windows x64 arch:x64

9820bc6ad2afedd4aceeb7655f35117f

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

kernel32

CloseHandle
ConvertThreadToFiber
CreateFiber
CreateFileW
CreateProcessA
CreateThread
CreateToolhelp32Snapshot
DeleteCriticalSection
DeleteFiber
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetComputerNameExW
GetComputerNameW
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetEnvironmentStringsW
GetExitCodeProcess
GetFileAttributesW
GetFileSizeEx
GetFileType
GetLastError
GetLocaleInfoW
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDirectoryW
GetSystemTimeAsFileTime
GetTickCount
GetUserDefaultLCID
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeProcThreadAttributeList
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
LCMapStringW
LeaveCriticalSection
LoadLibraryExW
MultiByteToWideChar
OpenProcess
Process32FirstW
Process32NextW
QueryPerformanceCounter
RaiseException
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwindEx
RtlVirtualUnwind
SetFileInformationByHandle
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
Sleep
SleepEx
SwitchToFiber
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
UpdateProcThreadAttribute
WaitForSingleObject
WideCharToMultiByte
WriteConsoleW
WriteFile

user32

DispatchMessageW
GetMessageW
KillTimer
PeekMessageW
PostThreadMessageW
SetTimer
TranslateMessage

advapi32

GetUserNameW

shlwapi

PathFileExistsW

iphlpapi

GetAdaptersAddresses
GetAdaptersInfo

ws2_32

inet_ntop

wininet

HttpAddRequestHeadersA
HttpOpenRequestA
HttpQueryInfoA
HttpSendRequestA
InternetCloseHandle
InternetConnectA
InternetOpenA
InternetQueryOptionA
InternetReadFile
InternetSetOptionA

Sections

.text
Size: 194KB - Virtual size: 193KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 55KB - Virtual size: 55KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 14KB - Virtual size: 28KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 8KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gxfg
Size: 8KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 140B

_RDATA
Size: 512B - Virtual size: 348B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 93KB - Virtual size: 93KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

9820bc6ad2afedd4aceeb7655f35117f

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

advapi32

shlwapi

iphlpapi

ws2_32

wininet

Sections

.text Size: 194KB - Virtual size: 193KB

.rdata Size: 55KB - Virtual size: 55KB

.data Size: 14KB - Virtual size: 28KB

.pdata Size: 8KB - Virtual size: 8KB

.gxfg Size: 8KB - Virtual size: 8KB

.retplne Size: 512B - Virtual size: 140B

_RDATA Size: 512B - Virtual size: 348B

.rsrc Size: 93KB - Virtual size: 93KB

.reloc Size: 5KB - Virtual size: 4KB

.text
Size: 194KB - Virtual size: 193KB

.rdata
Size: 55KB - Virtual size: 55KB

.data
Size: 14KB - Virtual size: 28KB

.pdata
Size: 8KB - Virtual size: 8KB

.gxfg
Size: 8KB - Virtual size: 8KB

.retplne
Size: 512B - Virtual size: 140B

_RDATA
Size: 512B - Virtual size: 348B

.rsrc
Size: 93KB - Virtual size: 93KB

.reloc
Size: 5KB - Virtual size: 4KB