2024-09-21_0f16ff662c401b9bc2aa04423348181f_cobalt-strike_ryuk

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General

Target

2024-09-21_0f16ff662c401b9bc2aa04423348181f_cobalt-strike_ryuk
Size

3.0MB
MD5

0f16ff662c401b9bc2aa04423348181f
SHA1

5191565dce24c6c8610c67f1b456d24768438187
SHA256

74689dedbb7c2a6c928a87b3eec887f491d277fc3dea8f87746f41965f075137
SHA512

550e6f0d5f34bc1ca48afe71f706461d429930d1bcfc6dbd9b5e82b2810927bbb860d07b43b5aa5ed1674f87924029e1b17c87b506e7abd4938ec5c17b4fe6d1
SSDEEP

49152:0hMCDXiUyLw3aG+IOc4Sfl6tu1yy/Y8H+bl7VWEXt2r4PRSEk1ul:g3Pfl6gH4RFXt2sEE5

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-09-21_0f16ff662c401b9bc2aa04423348181f_cobalt-strike_ryuk

Files

2024-09-21_0f16ff662c401b9bc2aa04423348181f_cobalt-strike_ryuk
.exe windows:10 windows x64 arch:x64

9efddc1646f89c40da82f60ac29d7523

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB Paths

c:\srv\slave\workdir\repos\opera\chromium\src\out\Release\assistant_installer.exe.pdb

Imports

advapi32

AccessCheck
AdjustTokenPrivileges
AllocateAndInitializeSid
BuildExplicitAccessWithNameW
BuildSecurityDescriptorW
BuildTrusteeWithSidW
CheckTokenMembership
ConvertStringSecurityDescriptorToSecurityDescriptorW
ConvertStringSidToSidW
CreateProcessAsUserW
DuplicateToken
EqualSid
FreeSid
GetExplicitEntriesFromAclW
GetLengthSid
GetNamedSecurityInfoW
GetSecurityDescriptorControl
GetSecurityDescriptorDacl
GetSecurityDescriptorGroup
GetSecurityDescriptorOwner
GetSecurityDescriptorSacl
GetTokenInformation
GetUserNameW
ImpersonateNamedPipeClient
IsValidAcl
IsValidSecurityDescriptor
IsValidSid
LookupPrivilegeValueW
OpenProcessToken
RegCloseKey
RegCreateKeyExW
RegDeleteKeyExW
RegDeleteValueW
RegEnumKeyExW
RegEnumValueW
RegGetKeySecurity
RegOpenKeyExW
RegQueryInfoKeyW
RegQueryValueExA
RegQueryValueExW
RegSetValueExW
RevertToSelf
SetEntriesInAclW
SetNamedSecurityInfoW
SetSecurityInfo

dbghelp

MiniDumpWriteDump
SymCleanup
SymFromAddr
SymGetLineFromAddr64
SymGetSearchPathW
SymInitialize
SymSetOptions
SymSetSearchPathW

oleaut32

SafeArrayCreate
SafeArrayGetVartype
SafeArrayPutElement
SysAllocString
SysAllocStringByteLen
SysFreeString
SysStringByteLen
VariantClear
VariantInit
VariantTimeToSystemTime

shell32

CommandLineToArgvW
ord680
SHChangeNotify
SHGetFolderPathW
SHGetKnownFolderPath
ShellExecuteExW

shlwapi

PathMatchSpecW
SHDeleteKeyW

user32

AllowSetForegroundWindow
CharUpperW
CreateWindowExW
DefWindowProcW
DestroyWindow
DispatchMessageW
FindWindowW
GetActiveWindow
GetMessageW
GetQueueStatus
GetWindowLongPtrW
KillTimer
MessageBoxW
MsgWaitForMultipleObjectsEx
PeekMessageW
PostMessageW
PostQuitMessage
RegisterClassExW
RegisterClassW
SendNotifyMessageW
SetTimer
SetWindowLongPtrW
TranslateMessage
UnregisterClassW
WaitForInputIdle
wsprintfW

version

GetFileVersionInfoSizeW
GetFileVersionInfoW
VerQueryValueW

kernel32

AcquireSRWLockExclusive
AddVectoredExceptionHandler
AssignProcessToJobObject
CloseHandle
CompareStringW
ConnectNamedPipe
CopyFileW
CreateDirectoryW
CreateEventW
CreateFileMappingW
CreateFileW
CreateIoCompletionPort
CreateMutexW
CreateNamedPipeW
CreatePipe
CreateProcessW
CreateSemaphoreA
CreateSemaphoreW
CreateThread
DecodePointer
DeleteCriticalSection
DeleteFileW
DeleteProcThreadAttributeList
DeviceIoControl
DisconnectNamedPipe
DuplicateHandle
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExitThread
ExpandEnvironmentStringsW
FileTimeToSystemTime
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FlushViewOfFile
FormatMessageA
FormatMessageW
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
GetLogicalProcessorInformation
GetLogicalProcessorInformationEx
GetLongPathNameW
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetNativeSystemInfo
GetOEMCP
GetProcAddress
GetProcessHandleCount
GetProcessHeap
GetProcessId
GetProcessMitigationPolicy
GetProcessTimes
GetProductInfo
GetQueuedCompletionStatus
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDefaultLCID
GetSystemDirectoryW
GetSystemInfo
GetSystemTimeAsFileTime
GetTempPathW
GetThreadContext
GetThreadId
GetThreadLocale
GetThreadPriority
GetTickCount
GetTimeFormatW
GetTimeZoneInformation
GetUserDefaultLCID
GetVersionExW
GetWindowsDirectoryW
GlobalMemoryStatusEx
HeapAlloc
HeapDestroy
HeapFree
HeapReAlloc
HeapSize
InitOnceExecuteOnce
InitializeConditionVariable
InitializeCriticalSection
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeProcThreadAttributeList
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
IsWow64Process
K32GetModuleInformation
K32GetPerformanceInfo
K32GetProcessMemoryInfo
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LoadLibraryW
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
RemoveVectoredExceptionHandler
ReplaceFileW
ResetEvent
ResumeThread
RtlCaptureContext
RtlCaptureStackBackTrace
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetConsoleCtrlHandler
SetEndOfFile
SetEnvironmentVariableW
SetEvent
SetFileAttributesW
SetFileInformationByHandle
SetFilePointerEx
SetHandleInformation
SetLastError
SetNamedPipeHandleState
SetProcessShutdownParameters
SetStdHandle
SetThreadInformation
SetThreadPriority
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
SleepEx
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
WaitNamedPipeW
WakeAllConditionVariable
WakeConditionVariable
WerRegisterRuntimeExceptionModule
WideCharToMultiByte
Wow64GetThreadContext
WriteConsoleW
WriteFile
lstrlenA

ole32

CoCreateInstance
CoInitializeEx
CoInitializeSecurity
CoRegisterInitializeSpy
CoRevokeInitializeSpy
CoSetProxyBlanket
CoTaskMemFree
CoUninitialize

secur32

GetUserNameExW

ntdll

NtDeleteKey

winmm

timeBeginPeriod
timeEndPeriod
timeGetTime

userenv

CreateEnvironmentBlock
DestroyEnvironmentBlock

api-ms-win-core-winrt-l1-1-0

RoInitialize
RoUninitialize

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: 278KB - Virtual size: 278KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 62KB - Virtual size: 123KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 69KB - Virtual size: 68KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gxfg
Size: 12KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 172B

.tls
Size: 1024B - Virtual size: 561B

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

LZMADEC
Size: 4KB - Virtual size: 4KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 500B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

malloc_h
Size: 512B - Virtual size: 228B

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rsrc
Size: 64KB - Virtual size: 64KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 576KB - Virtual size: 580KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

Files

9efddc1646f89c40da82f60ac29d7523

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

advapi32

dbghelp

oleaut32

shell32

shlwapi

user32

version

kernel32

ole32

secur32

ntdll

winmm

userenv

api-ms-win-core-winrt-l1-1-0

winhttp

Exports

Exports

Sections

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

.rdata Size: 278KB - Virtual size: 278KB

.data Size: 62KB - Virtual size: 123KB

.pdata Size: 69KB - Virtual size: 68KB

.gxfg Size: 12KB - Virtual size: 12KB

.retplne Size: 512B - Virtual size: 172B

.tls Size: 1024B - Virtual size: 561B

CPADinfo Size: 512B - Virtual size: 64B

LZMADEC Size: 4KB - Virtual size: 4KB

_RDATA Size: 512B - Virtual size: 500B

malloc_h Size: 512B - Virtual size: 228B

.rsrc Size: 64KB - Virtual size: 64KB

.reloc Size: 576KB - Virtual size: 580KB

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

.rdata
Size: 278KB - Virtual size: 278KB

.data
Size: 62KB - Virtual size: 123KB

.pdata
Size: 69KB - Virtual size: 68KB

.gxfg
Size: 12KB - Virtual size: 12KB

.retplne
Size: 512B - Virtual size: 172B

.tls
Size: 1024B - Virtual size: 561B

CPADinfo
Size: 512B - Virtual size: 64B

LZMADEC
Size: 4KB - Virtual size: 4KB

_RDATA
Size: 512B - Virtual size: 500B

malloc_h
Size: 512B - Virtual size: 228B

.rsrc
Size: 64KB - Virtual size: 64KB

.reloc
Size: 576KB - Virtual size: 580KB