2024-08-17_38283b6fe93f56c5ceb86a285f8e019f_cobalt-strike_ryuk

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General

Target

2024-08-17_38283b6fe93f56c5ceb86a285f8e019f_cobalt-strike_ryuk
Size

2.1MB
MD5

38283b6fe93f56c5ceb86a285f8e019f
SHA1

a3d3842e91475d9d08c52219150ff640dc457348
SHA256

b934df0679cf14a3d29d506e863163a43f4fd55916d992cbaad501eeef69abf0
SHA512

bafed304c098f12e47df9aac26d60b9d74bb9bf4a1b23f8476f2c858a7029049befa634481dace7cb8e56edc30f413220637bc9b2b8b40476403b35e5a7c9b58
SSDEEP

49152:Y5ym41PAcXbFxFCDIZe62FikS1JDmg27RnWGj:FNFbF7C3iPD527BWG

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-08-17_38283b6fe93f56c5ceb86a285f8e019f_cobalt-strike_ryuk

Files

2024-08-17_38283b6fe93f56c5ceb86a285f8e019f_cobalt-strike_ryuk
.exe windows:10 windows x64 arch:x64

b5540b9677800b644c93c8b86520f147

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:\b\s\w\ir\cache\builder\src\out\Release_x64\elevation_service.exe.pdb

Imports

advapi32

AddAce
BuildTrusteeWithSidW
ConvertSidToStringSidW
ConvertStringSidToSidW
CopySid
CreateProcessAsUserW
DeregisterEventSource
DuplicateTokenEx
GetAclInformation
GetLengthSid
GetNamedSecurityInfoW
GetSecurityDescriptorControl
GetSecurityDescriptorDacl
GetSecurityDescriptorGroup
GetSecurityDescriptorOwner
GetSecurityDescriptorSacl
GetSidLengthRequired
GetSidSubAuthority
GetTokenInformation
InitializeAcl
InitializeSecurityDescriptor
InitializeSid
IsValidAcl
IsValidSecurityDescriptor
IsValidSid
MakeAbsoluteSD
OpenProcessToken
RegCloseKey
RegOpenKeyExW
RegQueryValueExW
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
CreateDirectoryW
CreateEventW
CreateFileA
CreateFileMappingW
CreateFileW
CreateProcessW
CreateThread
DecodePointer
DeleteCriticalSection
DeleteFileW
DeleteProcThreadAttributeList
DuplicateHandle
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExitThread
ExpandEnvironmentStringsW
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FormatMessageW
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetDateFormatW
GetDriveTypeW
GetEnvironmentStringsW
GetEnvironmentVariableW
GetExitCodeProcess
GetFileAttributesW
GetFileSizeEx
GetFileType
GetFullPathNameW
GetLastError
GetLocalTime
GetLocaleInfoW
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
SystemTimeToFileTime
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryAcquireSRWLockExclusive
TzSpecificLocalTimeToSystemTime
UnhandledExceptionFilter
UnmapViewOfFile
UpdateProcThreadAttribute
VirtualAlloc
VirtualFree
VirtualProtect
VirtualQuery
WaitForSingleObject
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile
lstrcmpiW
lstrlenA

ole32

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

crypt32

CryptProtectData
CryptUnprotectData

rpcrt4

I_RpcOpenClientProcess

userenv

CreateEnvironmentBlock
DestroyEnvironmentBlock

shell32

CommandLineToArgvW
ord680
SHGetFolderPathW
SHGetKnownFolderPath
ShellExecuteExW

shlwapi

PathMatchSpecW

winmm

timeGetTime

ntdll

NtClose
NtOpenKeyEx
NtQueryValueKey
RtlFormatCurrentUserKeyPath
RtlFreeUnicodeString
RtlInitUnicodeString

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

RoUninitialize

Exports

Exports

GetHandleVerifier

Sections

.text
Size: 1.2MB - Virtual size: 1.2MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 218KB - Virtual size: 217KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 58KB - Virtual size: 100KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 42KB - Virtual size: 42KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gxfg
Size: 11KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 156B

.tls
Size: 512B - Virtual size: 465B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

_RDATA
Size: 512B - Virtual size: 500B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 6KB - Virtual size: 5KB

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

b5540b9677800b644c93c8b86520f147

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

advapi32

dbghelp

oleaut32

user32

kernel32

ole32

crypt32

rpcrt4

userenv

shell32

shlwapi

winmm

ntdll

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

Exports

Exports

Sections

.text Size: 1.2MB - Virtual size: 1.2MB

.rdata Size: 218KB - Virtual size: 217KB

.data Size: 58KB - Virtual size: 100KB

.pdata Size: 42KB - Virtual size: 42KB

.gxfg Size: 11KB - Virtual size: 10KB

.retplne Size: 512B - Virtual size: 156B

.tls Size: 512B - Virtual size: 465B

_RDATA Size: 512B - Virtual size: 500B

.rsrc Size: 6KB - Virtual size: 5KB

.reloc Size: 572KB - Virtual size: 576KB

.text
Size: 1.2MB - Virtual size: 1.2MB

.rdata
Size: 218KB - Virtual size: 217KB

.data
Size: 58KB - Virtual size: 100KB

.pdata
Size: 42KB - Virtual size: 42KB

.gxfg
Size: 11KB - Virtual size: 10KB

.retplne
Size: 512B - Virtual size: 156B

.tls
Size: 512B - Virtual size: 465B

_RDATA
Size: 512B - Virtual size: 500B

.rsrc
Size: 6KB - Virtual size: 5KB

.reloc
Size: 572KB - Virtual size: 576KB