2024-03-27_a5c5afacb1e1fc0226670ad28923bfaf_cobalt-strike_ryuk

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General

Target

2024-03-27_a5c5afacb1e1fc0226670ad28923bfaf_cobalt-strike_ryuk
Size

615KB
MD5

a5c5afacb1e1fc0226670ad28923bfaf
SHA1

0ca38cf788f4cc6ad473b3ac711d4f1a5b96d09f
SHA256

b686776e01854eaa2dddf68faf7a904b69892a2f57def21f9b7cfd286b6311df
SHA512

44d8ef389859596fb09cf03224a6d93ec845a30c321140b39148567af411fb6def1ac308061e93f31472c0b4a5c74eaa9be9e746e43dda19a5d63fa81c189809
SSDEEP

12288:XHwzXbuWOrDuf8OcHqMoKOO9RrgR1e51bcmDbm3O:XkbuWOBtKMXRURAVbm3O

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-03-27_a5c5afacb1e1fc0226670ad28923bfaf_cobalt-strike_ryuk

Files

2024-03-27_a5c5afacb1e1fc0226670ad28923bfaf_cobalt-strike_ryuk
.exe windows:6 windows x64 arch:x64

e6ced9f674559bd358c1fff5ccf4ef47

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

PDB Paths

C:\tmp\Crypt\LLVMO-Release\x64\Crypt.pdb

Imports

kernel32

AcquireSRWLockExclusive
AllocConsole
CloseHandle
CompareStringW
CreateEventW
CreateFileW
CreateProcessA
CreateProcessW
DecodePointer
DeleteCriticalSection
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
FindClose
FindFirstFileExW
FindNextFileW
FlushFileBuffers
FreeConsole
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetEnvironmentStringsW
GetExitCodeProcess
GetFileAttributesExW
GetFileSizeEx
GetFileType
GetLastError
GetLocaleInfoW
GetModuleFileNameA
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemTime
GetSystemTimeAsFileTime
GetThreadContext
GetUserDefaultLCID
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeSListHead
InitializeSRWLock
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
LCMapStringEx
LCMapStringW
LeaveCriticalSection
LoadLibraryExW
MultiByteToWideChar
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
ResetEvent
ResumeThread
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetEndOfFile
SetEnvironmentVariableW
SetEvent
SetFilePointerEx
SetLastError
SetStdHandle
SetThreadContext
SetUnhandledExceptionFilter
Sleep
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryEnterCriticalSection
UnhandledExceptionFilter
VirtualAlloc
VirtualAllocEx
WaitForSingleObject
WaitForSingleObjectEx
WideCharToMultiByte
WriteConsoleW
WriteFile
WriteProcessMemory

user32

FindWindowA
ShowWindow

shell32

ShellExecuteA

Sections

.text
Size: 318KB - Virtual size: 318KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 74KB - Virtual size: 73KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 206KB - Virtual size: 216KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 10KB - Virtual size: 10KB

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: 84B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 9B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

_RDATA
Size: 512B - Virtual size: 244B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 512B - Virtual size: 424B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

e6ced9f674559bd358c1fff5ccf4ef47

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

user32

shell32

Sections

.text Size: 318KB - Virtual size: 318KB

.rdata Size: 74KB - Virtual size: 73KB

.data Size: 206KB - Virtual size: 216KB

.pdata Size: 10KB - Virtual size: 10KB

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

.gehcont Size: 512B - Virtual size: 84B

.tls Size: 512B - Virtual size: 9B

_RDATA Size: 512B - Virtual size: 244B

.rsrc Size: 512B - Virtual size: 424B

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

.text
Size: 318KB - Virtual size: 318KB

.rdata
Size: 74KB - Virtual size: 73KB

.data
Size: 206KB - Virtual size: 216KB

.pdata
Size: 10KB - Virtual size: 10KB

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

.gehcont
Size: 512B - Virtual size: 84B

.tls
Size: 512B - Virtual size: 9B

_RDATA
Size: 512B - Virtual size: 244B

.rsrc
Size: 512B - Virtual size: 424B

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