2024-08-24_1be5583c9b84cd3491337c3d46a3ff3c_cobalt-strike_ryuk_virut

Sharing

Copy URL Twitter E-mail

General

Target

2024-08-24_1be5583c9b84cd3491337c3d46a3ff3c_cobalt-strike_ryuk_virut
Size

4.1MB
MD5

1be5583c9b84cd3491337c3d46a3ff3c
SHA1

408aabd357b9b9ed92e22c181674d51572d02e86
SHA256

4df58e23bcec88d3e151dfb1bae7e55f7b65f7508194d6187a66a6d88e43e60d
SHA512

00b506d4654cf247638d6493635a93f98b92ddca397e1a264032da0d9e9ae9692c82cfb124f05aed861fe2fa9e7b157aff1349f1888a527823dd1bb0f2a196aa
SSDEEP

49152:OSpm5ZsNAmygPzOEztTh3NJd7LVS4vFXdHMqUWdydOOkq/SlIwjfDvD5GAVL:G29nNLr5q/Siwjh

Score

1^/10

Malware Config

Signatures

Files

2024-08-24_1be5583c9b84cd3491337c3d46a3ff3c_cobalt-strike_ryuk_virut
.exe windows:5 windows x64 arch:x64

ecb9561b6fc986d8feba78334ac6e579

Code Sign

33:00:00:03:3e:63:3a:86:bf:41:73:d7:e0:00:00:00:00:03:3e
Certificate

Issuer

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

16/02/2023, 20:10

Not After

31/01/2024, 20:10

Subject

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

61:0e:90:d2:00:00:00:00:00:03
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

08/07/2011, 20:59

Not After

08/07/2026, 21:09

Subject

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

4c:3f:a3:14:df:4e:80:82:f3:f4:43:69:95:45:93:4d:5f:a6:21:3f:15:99:1e:6b:ed:2d:e6:9e:7b:0b:2a:24
Signer

Actual PE Digest

4c:3f:a3:14:df:4e:80:82:f3:f4:43:69:95:45:93:4d:5f:a6:21:3f:15:99:1e:6b:ed:2d:e6:9e:7b:0b:2a:24

Digest Algorithm

sha256

PE Digest Matches

false

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
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

D:\a\_work\e\src\out\Release\win_clang_nacl_win64\nacl64.exe.pdb

Imports

advapi32

AccessCheck
AddMandatoryAce
AdjustTokenPrivileges
BuildTrusteeWithSidW
ConvertSidToStringSidW
ConvertStringSecurityDescriptorToSecurityDescriptorW
ConvertStringSidToSidW
CreateProcessAsUserW
CreateRestrictedToken
CreateWellKnownSid
DuplicateToken
DuplicateTokenEx
EqualSid
EventRegister
EventUnregister
EventWrite
FreeSid
GetAce
GetKernelObjectSecurity
GetLengthSid
GetNamedSecurityInfoW
GetSecurityDescriptorDacl
GetSecurityDescriptorSacl
GetSecurityInfo
GetSidSubAuthority
GetTokenInformation
ImpersonateLoggedOnUser
InitializeAcl
InitializeSecurityDescriptor
InitializeSid
IsValidSid
LookupPrivilegeValueW
MapGenericMask
OpenProcessToken
OpenThreadToken
RegCloseKey
RegCreateKeyExW
RegDisablePredefinedCache
RegGetValueW
RegOpenKeyExW
RegQueryValueExW
RevertToSelf
SetEntriesInAclW
SetKernelObjectSecurity
SetSecurityDescriptorDacl
SetSecurityInfo
SetThreadToken
SetTokenInformation
SystemFunction036

user32

AllowSetForegroundWindow
CloseDesktop
CloseWindowStation
CreateDesktopW
CreateWindowExW
CreateWindowStationW
DefWindowProcW
DestroyWindow
DispatchMessageW
GetActiveWindow
GetProcessWindowStation
GetQueueStatus
GetSystemMetrics
GetThreadDesktop
GetUserObjectInformationW
GetUserObjectSecurity
GetWindowLongPtrW
KillTimer
MessageBoxW
MsgWaitForMultipleObjectsEx
PeekMessageW
PostMessageW
PostQuitMessage
RegisterClassExW
RegisterPowerSettingNotification
SetProcessWindowStation
SetTimer
SetWindowLongPtrW
TranslateMessage
UnregisterClassW
UnregisterPowerSettingNotification
wsprintfW

ws2_32

WSACleanup
WSACloseEvent
WSACreateEvent
WSAEventSelect
WSAGetLastError
WSAStartup
accept
bind
closesocket
gethostbyname
getsockname
htonl
htons
listen
ntohs
recv
select
send
setsockopt
shutdown
socket

kernel32

AcquireSRWLockExclusive
AcquireSRWLockShared
AllocConsole
AssignProcessToJobObject
AttachConsole
CancelIo
CloseHandle
CompareStringW
ConnectNamedPipe
ContinueDebugEvent
CreateDirectoryW
CreateEventW
CreateFileA
CreateFileMappingW
CreateFileW
CreateIoCompletionPort
CreateJobObjectW
CreateMutexW
CreateNamedPipeW
CreateProcessW
CreateRemoteThread
CreateSemaphoreW
CreateThread
CreateToolhelp32Snapshot
DebugActiveProcess
DebugBreak
DeleteCriticalSection
DeleteFileW
DeleteProcThreadAttributeList
DisconnectNamedPipe
DuplicateHandle
EncodePointer
EnterCriticalSection
EnumSystemLocalesEx
EnumSystemLocalesW
ExitProcess
ExitThread
ExpandEnvironmentStringsW
FileTimeToSystemTime
FindClose
FindFirstFileExW
FindFirstFileW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FlushInstructionCache
FormatMessageA
FormatMessageW
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetComputerNameExW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentProcessorNumber
GetCurrentThread
GetCurrentThreadId
GetDateFormatW
GetDriveTypeW
GetEnvironmentStringsW
GetEnvironmentVariableW
GetExitCodeProcess
GetFileAttributesExW
GetFileAttributesW
GetFileInformationByHandle
GetFileSizeEx
GetFileType
GetFullPathNameW
GetLastError
GetLocalTime
GetLocaleInfoW
GetLogicalProcessorInformation
GetLongPathNameW
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExA
GetModuleHandleExW
GetModuleHandleW
GetNamedPipeClientProcessId
GetNamedPipeHandleStateW
GetNativeSystemInfo
GetOEMCP
GetProcAddress
GetProcessHandleCount
GetProcessHeap
GetProcessHeaps
GetProcessId
GetProcessTimes
GetProductInfo
GetQueuedCompletionStatus
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDirectoryW
GetSystemInfo
GetSystemPowerStatus
GetSystemTime
GetSystemTimeAsFileTime
GetSystemWow64DirectoryW
GetTempPathW
GetThreadContext
GetThreadId
GetThreadPriority
GetThreadTimes
GetTickCount
GetTimeFormatW
GetTimeZoneInformation
GetUserDefaultLCID
GetUserDefaultLangID
GetUserDefaultLocaleName
GetVersionExW
GetWindowsDirectoryW
GlobalMemoryStatusEx
HeapDestroy
HeapSetInformation
InitOnceExecuteOnce
InitializeConditionVariable
InitializeCriticalSection
InitializeCriticalSectionAndSpinCount
InitializeProcThreadAttributeList
InitializeSListHead
InitializeSRWLock
IsDebuggerPresent
IsProcessInJob
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
IsWow64Process
K32GetModuleInformation
K32QueryWorkingSetEx
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LoadLibraryW
LocalFree
LockFileEx
MapViewOfFile
MapViewOfFileEx
MoveFileExW
MultiByteToWideChar
OpenProcess
OutputDebugStringA
OutputDebugStringW
PeekNamedPipe
PostQueuedCompletionStatus
Process32FirstW
Process32NextW
QueryDosDeviceW
QueryInformationJobObject
QueryPerformanceCounter
QueryPerformanceFrequency
QueryThreadCycleTime
RaiseException
ReadConsoleW
ReadFile
ReadProcessMemory
RegisterWaitForSingleObject
ReleaseSRWLockExclusive
ReleaseSRWLockShared
ReleaseSemaphore
RemoveDirectoryW
ResetEvent
ResumeThread
RtlCaptureContext
RtlCaptureStackBackTrace
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetCurrentDirectoryW
SetEndOfFile
SetEnvironmentVariableW
SetEvent
SetFileAttributesW
SetFilePointerEx
SetFileTime
SetHandleInformation
SetInformationJobObject
SetLastError
SetNamedPipeHandleState
SetStdHandle
SetThreadAffinityMask
SetThreadContext
SetThreadPriority
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
SuspendThread
SwitchToThread
SystemTimeToFileTime
SystemTimeToTzSpecificLocalTime
TerminateJobObject
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TransactNamedPipe
TryAcquireSRWLockExclusive
TzSpecificLocalTimeToSystemTime
UnhandledExceptionFilter
UnlockFileEx
UnmapViewOfFile
UnregisterWait
UnregisterWaitEx
UpdateProcThreadAttribute
VerSetConditionMask
VerifyVersionInfoW
VirtualAlloc
VirtualAllocEx
VirtualFree
VirtualFreeEx
VirtualProtect
VirtualProtectEx
VirtualQuery
VirtualQueryEx
WaitForDebugEvent
WaitForMultipleObjects
WaitForSingleObject
WaitForSingleObjectEx
WaitNamedPipeW
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile
WriteProcessMemory
__C_specific_handler
lstrcmpiW
lstrlenA
lstrlenW

shell32

CommandLineToArgvW
SHGetFolderPathW
SHGetKnownFolderPath
ShellExecuteExW

version

GetFileVersionInfoSizeW
GetFileVersionInfoW
VerQueryValueW

userenv

CreateEnvironmentBlock
DestroyEnvironmentBlock
GetProfileType

winmm

timeBeginPeriod
timeEndPeriod
timeGetDevCaps
timeGetTime

ole32

CoInitializeEx
CoRegisterInitializeSpy
CoRevokeInitializeSpy
CoTaskMemFree
CoUninitialize

Exports

Exports

ClearBreakpadPipeEnvironmentVariable
CrashForException
DumpProcess
DumpProcessWithoutCrash
GetHandleVerifier
InjectDumpForHungInput
IsSandboxedProcess
TerminateProcessWithoutDump
_ovly_debug_event
nacl_global_xlate_base
nacl_thread_ids
nacl_user

Sections

.text
Size: 2.3MB - Virtual size: 2.3MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 1.4MB - Virtual size: 1.4MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 69KB - Virtual size: 264KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 97KB - Virtual size: 97KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gxfg
Size: 13KB - Virtual size: 13KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 148B

.tls
Size: 512B - Virtual size: 337B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.voltbl
Size: 512B - Virtual size: 68B

_RDATA
Size: 512B - Virtual size: 244B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

malloc_h
Size: 512B - Virtual size: 236B

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rsrc
Size: 67KB - Virtual size: 66KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

1�A
Size: 12KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

ecb9561b6fc986d8feba78334ac6e579

Code Sign

33:00:00:03:3e:63:3a:86:bf:41:73:d7:e0:00:00:00:00:03:3eCertificate

Extended Key Usages

61:0e:90:d2:00:00:00:00:00:03Certificate

Key Usages

4c:3f:a3:14:df:4e:80:82:f3:f4:43:69:95:45:93:4d:5f:a6:21:3f:15:99:1e:6b:ed:2d:e6:9e:7b:0b:2a:24Signer

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

advapi32

user32

ws2_32

kernel32

shell32

version

userenv

winmm

ole32

Exports

Exports

Sections

.text Size: 2.3MB - Virtual size: 2.3MB

.rdata Size: 1.4MB - Virtual size: 1.4MB

.data Size: 69KB - Virtual size: 264KB

.pdata Size: 97KB - Virtual size: 97KB

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

.gxfg Size: 13KB - Virtual size: 13KB

.retplne Size: 512B - Virtual size: 148B

.tls Size: 512B - Virtual size: 337B

.voltbl Size: 512B - Virtual size: 68B

_RDATA Size: 512B - Virtual size: 244B

malloc_h Size: 512B - Virtual size: 236B

.rsrc Size: 67KB - Virtual size: 66KB

1�A Size: 12KB - Virtual size: 11KB

33:00:00:03:3e:63:3a:86:bf:41:73:d7:e0:00:00:00:00:03:3e
Certificate

61:0e:90:d2:00:00:00:00:00:03
Certificate

4c:3f:a3:14:df:4e:80:82:f3:f4:43:69:95:45:93:4d:5f:a6:21:3f:15:99:1e:6b:ed:2d:e6:9e:7b:0b:2a:24
Signer

.text
Size: 2.3MB - Virtual size: 2.3MB

.rdata
Size: 1.4MB - Virtual size: 1.4MB

.data
Size: 69KB - Virtual size: 264KB

.pdata
Size: 97KB - Virtual size: 97KB

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

.gxfg
Size: 13KB - Virtual size: 13KB

.retplne
Size: 512B - Virtual size: 148B

.tls
Size: 512B - Virtual size: 337B

.voltbl
Size: 512B - Virtual size: 68B

_RDATA
Size: 512B - Virtual size: 244B

malloc_h
Size: 512B - Virtual size: 236B

.rsrc
Size: 67KB - Virtual size: 66KB

1�A
Size: 12KB - Virtual size: 11KB