2024-09-27_4a8f28ef85a39cb6f92c8f6f1b2fcf87_cobalt-strike_ryuk

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General

Target

2024-09-27_4a8f28ef85a39cb6f92c8f6f1b2fcf87_cobalt-strike_ryuk
Size

3.1MB
MD5

4a8f28ef85a39cb6f92c8f6f1b2fcf87
SHA1

de65a4205870821d7c07a5fb9e3690850b5bc8e0
SHA256

5561312c0b3213b3a17868d23451ba1398767a6a8106d6a9233e42d66bf6f624
SHA512

6984ea29eaa0292e70ff90483cfdde0e0f347ae6a0d2b251cf0bedb8f0b3e4fbad158e7bae348ed64043b6196e98007d19fcea58fcccfc4776ee4253a47efd2b
SSDEEP

49152:uRzgwUFUPugE7nkHDx/tkjfhqccEH2Dmg27RnWGj:NUP/E7kAWxD527BWG

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-09-27_4a8f28ef85a39cb6f92c8f6f1b2fcf87_cobalt-strike_ryuk

Files

2024-09-27_4a8f28ef85a39cb6f92c8f6f1b2fcf87_cobalt-strike_ryuk
.exe windows:10 windows x64 arch:x64

fc020159737220ee9630d2a990aef2b0

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:\jenkins\x64-release\src\out\Release\elevation_service.exe.pdb

Imports

advapi32

AddAce
BuildTrusteeWithSidW
ChangeServiceConfig2W
ChangeServiceConfigW
CloseServiceHandle
ConvertSidToStringSidW
ConvertStringSidToSidW
CopySid
CreateProcessAsUserW
CreateServiceW
DeleteService
DeregisterEventSource
DuplicateTokenEx
GetAclInformation
GetLengthSid
GetNamedSecurityInfoW
GetSecurityDescriptorControl
GetSecurityDescriptorDacl
GetSecurityDescriptorGroup
GetSecurityDescriptorOwner
GetSecurityDescriptorSacl
GetSidLengthRequired
GetSidSubAuthority
GetTokenInformation
InitializeAcl
InitializeSecurityDescriptor
InitializeSid
IsValidAcl
IsValidSecurityDescriptor
IsValidSid
MakeAbsoluteSD
OpenProcessToken
OpenSCManagerW
OpenServiceW
QueryServiceConfigW
QueryServiceStatus
RegCloseKey
RegCreateKeyExW
RegDeleteKeyExW
RegDeleteValueW
RegEnumKeyExW
RegEnumValueW
RegOpenKeyExW
RegQueryInfoKeyW
RegQueryValueExW
RegSetValueExW
RegisterEventSourceA
RegisterServiceCtrlHandlerW
ReportEventA
SetEntriesInAclW
SetNamedSecurityInfoW
SetSecurityDescriptorDacl
SetSecurityDescriptorGroup
SetSecurityDescriptorOwner
SetSecurityInfo
SetServiceStatus
StartServiceCtrlDispatcherW

dbghelp

SymCleanup
SymFromAddr
SymGetLineFromAddr64
SymGetSearchPathW
SymInitialize
SymSetOptions
SymSetSearchPathW

oleaut32

SysAllocStringByteLen
SysStringByteLen

user32

AllowSetForegroundWindow
GetActiveWindow
UnregisterClassW

kernel32

AcquireSRWLockExclusive
AcquireSRWLockShared
AssignProcessToJobObject
CloseHandle
CompareStringW
CopyFileW
CreateDirectoryW
CreateEventW
CreateFileA
CreateFileMappingW
CreateFileW
CreateProcessW
DecodePointer
DeleteCriticalSection
DeleteFileW
DeleteProcThreadAttributeList
DuplicateHandle
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExpandEnvironmentStringsW
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FormatMessageW
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetDateFormatW
GetDriveTypeW
GetEnvironmentStringsW
GetEnvironmentVariableW
GetExitCodeProcess
GetFileAttributesExW
GetFileAttributesW
GetFileSizeEx
GetFileType
GetFullPathNameW
GetLastError
GetLocalTime
GetLocaleInfoW
GetLogicalProcessorInformation
GetLongPathNameW
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetNativeSystemInfo
GetOEMCP
GetProcAddress
GetProcessHeap
GetProcessId
GetProductInfo
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDirectoryW
GetSystemInfo
GetSystemTimeAsFileTime
GetTempPathW
GetThreadPriority
GetTickCount
GetTimeFormatW
GetTimeZoneInformation
GetUserDefaultLCID
GetVersionExW
GetWindowsDirectoryW
HeapAlloc
HeapDestroy
HeapFree
HeapReAlloc
HeapSetInformation
HeapSize
InitOnceExecuteOnce
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeProcThreadAttributeList
InitializeSListHead
InitializeSRWLock
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
IsWow64Process
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LoadLibraryW
LocalFree
MapViewOfFile
MoveFileExW
MultiByteToWideChar
OpenProcess
OutputDebugStringA
OutputDebugStringW
QueryFullProcessImageNameW
QueryPerformanceCounter
QueryPerformanceFrequency
QueryThreadCycleTime
RaiseException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
ReleaseSRWLockShared
RemoveDirectoryW
RtlCaptureContext
RtlCaptureStackBackTrace
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetEndOfFile
SetEnvironmentVariableW
SetEvent
SetFileAttributesW
SetFilePointer
SetFilePointerEx
SetFileTime
SetHandleInformation
SetLastError
SetStdHandle
SetThreadInformation
SetThreadPriority
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
SwitchToThread
SystemTimeToFileTime
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryAcquireSRWLockExclusive
TzSpecificLocalTimeToSystemTime
UnhandledExceptionFilter
UnmapViewOfFile
UnregisterWaitEx
UpdateProcThreadAttribute
VirtualAlloc
VirtualFree
VirtualProtect
VirtualQuery
WaitForSingleObject
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile
lstrcmpiW

ole32

CoAddRefServerProcess
CoImpersonateClient
CoInitializeEx
CoInitializeSecurity
CoRegisterClassObject
CoRegisterInitializeSpy
CoReleaseServerProcess
CoResumeClassObjects
CoRevertToSelf
CoRevokeClassObject
CoRevokeInitializeSpy
CoTaskMemFree
CoUninitialize
IIDFromString

crypt32

CryptProtectData
CryptUnprotectData

rpcrt4

I_RpcOpenClientProcess

ntdll

NtClose
NtDeleteKey
NtOpenKeyEx
NtQueryValueKey
RtlFormatCurrentUserKeyPath
RtlFreeUnicodeString
RtlInitUnicodeString

winmm

timeGetTime

userenv

CreateEnvironmentBlock
DestroyEnvironmentBlock

shell32

CommandLineToArgvW
ord680
SHGetFolderPathW
SHGetKnownFolderPath
ShellExecuteExW

shlwapi

PathMatchSpecW

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

RoUninitialize

Exports

Exports

GetHandleVerifier

Sections

.text
Size: 2.0MB - Virtual size: 2.0MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 330KB - Virtual size: 330KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 58KB - Virtual size: 102KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 43KB - Virtual size: 43KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gxfg
Size: 12KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 184B

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

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 449B

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: 572KB - Virtual size: 576KB

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

fc020159737220ee9630d2a990aef2b0

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

advapi32

dbghelp

oleaut32

user32

kernel32

ole32

crypt32

rpcrt4

ntdll

winmm

userenv

shell32

shlwapi

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

Exports

Exports

Sections

.text Size: 2.0MB - Virtual size: 2.0MB

.rdata Size: 330KB - Virtual size: 330KB

.data Size: 58KB - Virtual size: 102KB

.pdata Size: 43KB - Virtual size: 43KB

.gxfg Size: 12KB - Virtual size: 11KB

.retplne Size: 512B - Virtual size: 184B

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

.tls Size: 512B - Virtual size: 449B

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: 572KB - Virtual size: 576KB

.text
Size: 2.0MB - Virtual size: 2.0MB

.rdata
Size: 330KB - Virtual size: 330KB

.data
Size: 58KB - Virtual size: 102KB

.pdata
Size: 43KB - Virtual size: 43KB

.gxfg
Size: 12KB - Virtual size: 11KB

.retplne
Size: 512B - Virtual size: 184B

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

.tls
Size: 512B - Virtual size: 449B

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: 572KB - Virtual size: 576KB