2024-11-06_9fc1a894f48c14ca703edb75b4b1d340_cobalt-strike_ryuk

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General

Target

2024-11-06_9fc1a894f48c14ca703edb75b4b1d340_cobalt-strike_ryuk
Size

2.4MB
MD5

9fc1a894f48c14ca703edb75b4b1d340
SHA1

64e7263f9c572e65d69eaab3f30c4dfb91cca87a
SHA256

c7b6685f52c3b23d1bc350ab366bcf2acd94c9fe35f18cc3167df325e701ef64
SHA512

36dd4871de58aa05c77a84fb6c5ab818cc36ade818fad3a3fbe10ccc161f095febfae6300ffcd6f433b19d6e9d7ad130d5654da9a32ad39b26b1f0a5629639fb
SSDEEP

49152:By2cW23etDz1x5bhnUHiBRuiH28jbp5ccpnpuoijYT4Uf:pzV5RHVp5Jai

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-11-06_9fc1a894f48c14ca703edb75b4b1d340_cobalt-strike_ryuk

Files

2024-11-06_9fc1a894f48c14ca703edb75b4b1d340_cobalt-strike_ryuk
.exe windows:5 windows x64 arch:x64

561524d6fc14e1b51ea8b7069ea776a0

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB Paths

assistant_installer.exe.pdb

Imports

advapi32

AccessCheck
AdjustTokenPrivileges
AllocateAndInitializeSid
BuildExplicitAccessWithNameW
BuildSecurityDescriptorW
BuildTrusteeWithSidW
CheckTokenMembership
ConvertStringSecurityDescriptorToSecurityDescriptorW
CreateProcessAsUserW
DuplicateToken
EqualSid
EventRegister
EventUnregister
EventWrite
FreeSid
GetExplicitEntriesFromAclW
GetNamedSecurityInfoW
GetTokenInformation
GetUserNameW
ImpersonateNamedPipeClient
LookupPrivilegeValueW
OpenProcessToken
RegCloseKey
RegCreateKeyExW
RegDeleteKeyExW
RegDeleteKeyW
RegDeleteValueW
RegEnumKeyExW
RegEnumValueW
RegGetKeySecurity
RegNotifyChangeKeyValue
RegOpenKeyExW
RegQueryInfoKeyW
RegQueryValueExW
RegSetValueExW
RevertToSelf
SetEntriesInAclW
SetNamedSecurityInfoW
SystemFunction036

dbghelp

MiniDumpWriteDump
SymCleanup
SymFromAddr
SymGetLineFromAddr64
SymGetSearchPathW
SymInitialize
SymSetOptions
SymSetSearchPathW

oleaut32

SafeArrayCreate
SafeArrayGetVartype
SafeArrayPutElement
SysAllocString
SysAllocStringByteLen
SysFreeString
SysStringByteLen
VarUI4FromStr
VariantClear
VariantInit
VariantTimeToSystemTime

shell32

CommandLineToArgvW
SHAssocEnumHandlersForProtocolByApplication
SHChangeNotify
SHCreateAssociationRegistration
SHGetFolderPathW
SHGetKnownFolderPath
SHOpenWithDialog
ShellExecuteExW

shlwapi

PathMatchSpecW
SHDeleteKeyW

user32

AllowSetForegroundWindow
CharNextW
CharUpperW
CreateWindowExW
DefWindowProcW
DestroyWindow
DispatchMessageW
FindWindowExW
FindWindowW
GetDesktopWindow
GetForegroundWindow
GetMessageW
GetQueueStatus
GetWindowLongPtrW
KillTimer
MessageBoxW
MsgWaitForMultipleObjectsEx
PeekMessageW
PostMessageW
PostQuitMessage
RegisterClassExW
RegisterClassW
SendInput
SendNotifyMessageW
SetForegroundWindow
SetTimer
SetWindowLongPtrW
TranslateMessage
UnregisterClassW
WaitForInputIdle
wsprintfW

version

GetFileVersionInfoSizeW
GetFileVersionInfoW
VerQueryValueW

ws2_32

WSACloseEvent
WSACreateEvent
WSAEnumNetworkEvents
WSAEventSelect
WSAGetLastError
WSAGetOverlappedResult
WSAResetEvent
WSAStartup
accept
closesocket
getsockname
ioctlsocket
recv
recvfrom
sendto
shutdown

kernel32

AcquireSRWLockExclusive
AssignProcessToJobObject
CallbackMayRunLong
CloseHandle
CloseThreadpool
CloseThreadpoolWork
CompareStringW
ConnectNamedPipe
CopyFileW
CreateDirectoryW
CreateEventW
CreateFileMappingW
CreateFileW
CreateIoCompletionPort
CreateMutexW
CreateNamedPipeW
CreatePipe
CreateProcessW
CreateSemaphoreW
CreateThread
CreateThreadpool
CreateThreadpoolWork
DeleteCriticalSection
DeleteFileW
DeleteProcThreadAttributeList
DeviceIoControl
DisconnectNamedPipe
DuplicateHandle
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExitThread
ExpandEnvironmentStringsW
FileTimeToSystemTime
FindClose
FindFirstFileExW
FindNextFileW
FindResourceW
FlsAlloc
FlsSetValue
FlushFileBuffers
FlushViewOfFile
FormatMessageA
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetDateFormatW
GetDriveTypeW
GetEnvironmentStringsW
GetEnvironmentVariableW
GetExitCodeProcess
GetFileAttributesExW
GetFileAttributesW
GetFileInformationByHandle
GetFileInformationByHandleEx
GetFileSizeEx
GetFileTime
GetFileType
GetFullPathNameW
GetHandleInformation
GetLastError
GetLocalTime
GetLocaleInfoW
GetLogicalDrives
GetLongPathNameW
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetNativeSystemInfo
GetOEMCP
GetProcAddress
GetProcessHandleCount
GetProcessHeap
GetProcessId
GetProcessTimes
GetProductInfo
GetQueuedCompletionStatus
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDefaultLCID
GetSystemDirectoryW
GetSystemInfo
GetSystemTimeAsFileTime
GetTempPathW
GetThreadContext
GetThreadId
GetThreadLocale
GetThreadPriority
GetTickCount
GetTimeFormatW
GetTimeZoneInformation
GetUserDefaultLCID
GetVersion
GetVersionExW
GetWindowsDirectoryW
GlobalMemoryStatusEx
InitOnceExecuteOnce
InitializeConditionVariable
InitializeCriticalSection
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeProcThreadAttributeList
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
IsWow64Process
K32GetPerformanceInfo
K32GetProcessMemoryInfo
K32QueryWorkingSetEx
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LoadLibraryW
LoadResource
LocalAlloc
LocalFree
LockFileEx
MapViewOfFile
MoveFileExW
MoveFileW
MultiByteToWideChar
OpenEventW
OpenProcess
OutputDebugStringA
OutputDebugStringW
PeekNamedPipe
PostQueuedCompletionStatus
QueryFullProcessImageNameW
QueryPerformanceCounter
QueryPerformanceFrequency
QueryThreadCycleTime
RaiseException
ReadConsoleW
ReadFile
ReadProcessMemory
RegisterWaitForSingleObject
ReleaseMutex
ReleaseSRWLockExclusive
ReleaseSemaphore
RemoveDirectoryW
ReplaceFileW
ResetEvent
ResumeThread
RtlCaptureContext
RtlCaptureStackBackTrace
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetConsoleCtrlHandler
SetEndOfFile
SetEnvironmentVariableW
SetEvent
SetFileAttributesW
SetFileInformationByHandle
SetFilePointerEx
SetHandleInformation
SetLastError
SetNamedPipeHandleState
SetProcessShutdownParameters
SetStdHandle
SetThreadPriority
SetThreadpoolThreadMaximum
SetThreadpoolThreadMinimum
SetUnhandledExceptionFilter
SizeofResource
Sleep
SleepConditionVariableSRW
SleepEx
SubmitThreadpoolWork
SuspendThread
SystemTimeToFileTime
SystemTimeToTzSpecificLocalTime
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TransactNamedPipe
TryAcquireSRWLockExclusive
TzSpecificLocalTimeToSystemTime
UnhandledExceptionFilter
UnlockFileEx
UnmapViewOfFile
UnregisterWaitEx
UpdateProcThreadAttribute
VerSetConditionMask
VerifyVersionInfoW
VirtualAlloc
VirtualFree
VirtualProtect
VirtualQuery
VirtualQueryEx
WaitForMultipleObjects
WaitForSingleObject
WaitForSingleObjectEx
WaitForThreadpoolWorkCallbacks
WaitNamedPipeW
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
Wow64GetThreadContext
WriteConsoleW
WriteFile
lstrcmpiW

ole32

CoAllowSetForegroundWindow
CoCreateInstance
CoInitializeEx
CoInitializeSecurity
CoRegisterInitializeSpy
CoRevokeInitializeSpy
CoSetProxyBlanket
CoTaskMemAlloc
CoTaskMemFree
CoTaskMemRealloc
CoUninitialize
IIDFromString
StringFromGUID2

secur32

GetUserNameExW

userenv

CreateEnvironmentBlock
DestroyEnvironmentBlock

winmm

timeBeginPeriod
timeEndPeriod
timeGetTime

winhttp

WinHttpAddRequestHeaders
WinHttpCloseHandle
WinHttpConnect
WinHttpCrackUrl
WinHttpOpen
WinHttpOpenRequest
WinHttpQueryHeaders
WinHttpReadData
WinHttpReceiveResponse
WinHttpSendRequest
WinHttpSetTimeouts
WinHttpWriteData

Exports

Exports

GetHandleVerifier

Sections

.text
Size: 1.9MB - Virtual size: 1.9MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 337KB - Virtual size: 337KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 14KB - Virtual size: 50KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 66KB - Virtual size: 66KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 36B

.tls
Size: 512B - Virtual size: 305B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

CPADinfo
Size: 512B - Virtual size: 64B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

_RDATA
Size: 512B - Virtual size: 148B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 9KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.zero
Size: 8KB - Virtual size: 4KB

IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

561524d6fc14e1b51ea8b7069ea776a0

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

advapi32

dbghelp

oleaut32

shell32

shlwapi

user32

version

ws2_32

kernel32

ole32

secur32

userenv

winmm

winhttp

Exports

Exports

Sections

.text Size: 1.9MB - Virtual size: 1.9MB

.rdata Size: 337KB - Virtual size: 337KB

.data Size: 14KB - Virtual size: 50KB

.pdata Size: 66KB - Virtual size: 66KB

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

.retplne Size: 512B - Virtual size: 36B

.tls Size: 512B - Virtual size: 305B

CPADinfo Size: 512B - Virtual size: 64B

_RDATA Size: 512B - Virtual size: 148B

.rsrc Size: 9KB - Virtual size: 8KB

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

.zero Size: 8KB - Virtual size: 4KB

.text
Size: 1.9MB - Virtual size: 1.9MB

.rdata
Size: 337KB - Virtual size: 337KB

.data
Size: 14KB - Virtual size: 50KB

.pdata
Size: 66KB - Virtual size: 66KB

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

.retplne
Size: 512B - Virtual size: 36B

.tls
Size: 512B - Virtual size: 305B

CPADinfo
Size: 512B - Virtual size: 64B

_RDATA
Size: 512B - Virtual size: 148B

.rsrc
Size: 9KB - Virtual size: 8KB

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

.zero
Size: 8KB - Virtual size: 4KB