2024-09-05_f46c17d4d2e3fbcf9200df6d8f7cfdb0_cobalt-strike_ryuk

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General

Target

2024-09-05_f46c17d4d2e3fbcf9200df6d8f7cfdb0_cobalt-strike_ryuk
Size

2.4MB
MD5

f46c17d4d2e3fbcf9200df6d8f7cfdb0
SHA1

af85c6f9b31d81177c158556afe879f0ce3d91d4
SHA256

a38add97fd1f42dd2817af84e88bb74df6f98b7d5e14bea2d5e599f5e6a3cb4f
SHA512

0210cc19731c25546ee034c2ceb44076721f6b5fc7d386cdee2fc8cf9f23d986420e4419f18306986464be61ad34187babcdcffa7a005e569510ed8a22ae9e48
SSDEEP

49152:3Jfa/B0rhfpUvU7odp0JeKBOuF0iYG+U5ev8P/BcfCktMvB+EwRuAcN:3Jy/B0T9spoeKIumhU5ev9KktEmUAcN

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-09-05_f46c17d4d2e3fbcf9200df6d8f7cfdb0_cobalt-strike_ryuk

Files

2024-09-05_f46c17d4d2e3fbcf9200df6d8f7cfdb0_cobalt-strike_ryuk
.exe windows:5 windows x64 arch:x64

7d8c7e1c8efa556f8f1bc142cef5dae8

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
CompareStringW
CreateDirectoryW
CreateFileA
CreateFileW
CreatePipe
CreateProcessW
DeleteCriticalSection
DeleteFileW
DuplicateHandle
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
FileTimeToSystemTime
FindClose
FindFirstFileExW
FindFirstFileW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetDriveTypeW
GetEnvironmentStringsW
GetFileAttributesA
GetFileAttributesW
GetFileInformationByHandle
GetFileSize
GetFileType
GetFullPathNameW
GetLastError
GetLocaleInfoW
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessAffinityMask
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDirectoryW
GetSystemTimeAsFileTime
GetTempPathW
GetTickCount
GetTimeZoneInformation
GetUserDefaultLCID
GetVersionExW
GetWindowsDirectoryW
HeapAlloc
HeapCreate
HeapDestroy
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSection
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
LCMapStringW
LeaveCriticalSection
LoadLibraryExW
LoadLibraryW
MoveFileW
MultiByteToWideChar
PeekNamedPipe
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReadConsoleW
ReadFile
RegisterWaitForSingleObject
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwindEx
RtlVirtualUnwind
SetEndOfFile
SetEnvironmentVariableW
SetFileAttributesW
SetFilePointer
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
Sleep
SystemTimeToTzSpecificLocalTime
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
UnregisterWait
VirtualAlloc
VirtualFree
WaitForSingleObject
WideCharToMultiByte
WriteConsoleW
WriteFile

user32

CharUpperW

shell32

ShellExecuteExW

ws2_32

WSACleanup
WSAStartup
__WSAFDIsSet
bind
closesocket
connect
gethostbyname
htons
inet_addr
ioctlsocket
recv
recvfrom
select
send
sendto
socket

winmm

timeBeginPeriod

advapi32

CryptAcquireContextW
CryptGenRandom
CryptReleaseContext

Sections

.text
Size: 398KB - Virtual size: 397KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 113KB - Virtual size: 112KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 1.8MB - Virtual size: 1.8MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 17KB - Virtual size: 17KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.code
Size: 28KB - Virtual size: 28KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.gxfg
Size: 8KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 348B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 3KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

7d8c7e1c8efa556f8f1bc142cef5dae8

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

shell32

ws2_32

winmm

advapi32

Sections

.text Size: 398KB - Virtual size: 397KB

.rdata Size: 113KB - Virtual size: 112KB

.data Size: 1.8MB - Virtual size: 1.8MB

.pdata Size: 17KB - Virtual size: 17KB

.code Size: 28KB - Virtual size: 28KB

.gxfg Size: 8KB - Virtual size: 7KB

_RDATA Size: 512B - Virtual size: 348B

.reloc Size: 3KB - Virtual size: 2KB

.text
Size: 398KB - Virtual size: 397KB

.rdata
Size: 113KB - Virtual size: 112KB

.data
Size: 1.8MB - Virtual size: 1.8MB

.pdata
Size: 17KB - Virtual size: 17KB

.code
Size: 28KB - Virtual size: 28KB

.gxfg
Size: 8KB - Virtual size: 7KB

_RDATA
Size: 512B - Virtual size: 348B

.reloc
Size: 3KB - Virtual size: 2KB