2024-05-11_2bf507614df8beb12ae42b2c96671d2a_cobalt-strike_lockbit

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General

Target

2024-05-11_2bf507614df8beb12ae42b2c96671d2a_cobalt-strike_lockbit
Size

325KB
MD5

2bf507614df8beb12ae42b2c96671d2a
SHA1

73a4b9f3a04d4bceb1e2c94c9567de4be695d4a2
SHA256

15836904c11349240a3f76c5aa15ce344940069fa510503c38135ce3617327ab
SHA512

f046588eda15384f09965b776c910838dd863db548dcfd67acbf6a099cf94663f467c08538f258e4770b21b3646a9f3d207211abd63dc7ee9fb2a41c619b3264
SSDEEP

6144:WLNkSTnE1kb+55UEyOLrWwOpOjpOdpOjpOXxTuUnBGBpTyz+4:WLNkSTnE1kb+557rWc020tGHyz+4

Score

10^/10

Malware Config

Signatures

Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 1 IoCs

resource	yara_rule
sample	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-05-11_2bf507614df8beb12ae42b2c96671d2a_cobalt-strike_lockbit

Files

2024-05-11_2bf507614df8beb12ae42b2c96671d2a_cobalt-strike_lockbit
.exe windows:6 windows x64 arch:x64

3164b0e3117a873c87f9d6c1f176d6c8

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

kernel32

ReadFile
SetFilePointer
WriteFile
GetTempPathA
GetTempFileNameA
FileTimeToDosDateTime
WideCharToMultiByte
HeapCreate
HeapDestroy
HeapAlloc
CreateFileW
DeleteFileW
CompareFileTime
CreateDirectoryW
GetFileTime
RemoveDirectoryW
SetEndOfFile
TerminateProcess
GetExitCodeProcess
ResumeThread
CreateProcessW
MoveFileExW
CopyFileW
SetCurrentDirectoryW
GetCurrentDirectoryW
GetFileAttributesW
LoadLibraryW
ContinueDebugEvent
WaitForDebugEvent
GetStartupInfoW
InitializeProcThreadAttributeList
DeleteProcThreadAttributeList
UpdateProcThreadAttribute
CreateThread
TerminateThread
SetThreadPriority
SetEvent
GetCurrentProcess
GetCurrentThreadId
OpenProcess
VirtualFree
LocalAlloc
LocalFree
GetConsoleMode
GetConsoleOutputCP
GetCommandLineW
SetStdHandle
SetFilePointerEx
LoadLibraryExW
FreeLibrary
FindNextFileW
FindFirstFileW
FindClose
FileTimeToLocalFileTime
WriteConsoleW
GetProcAddress
GetModuleHandleW
GetTickCount
Sleep
CreateEventW
WaitForSingleObject
SetLastError
GetLastError
CloseHandle
GetModuleFileNameW
RaiseException
EncodePointer
MultiByteToWideChar
GetStringTypeW
GetCPInfo
GetOEMCP
GetACP
IsValidCodePage
LCMapStringW
FlsSetValue
FlsGetValue
DeleteCriticalSection
LeaveCriticalSection
EnterCriticalSection
HeapFree
SetUnhandledExceptionFilter
UnhandledExceptionFilter
IsDebuggerPresent
GetModuleHandleExW
IsProcessorFeaturePresent
TlsSetValue
TlsGetValue
InitializeCriticalSectionAndSpinCount
GetFileInformationByHandle
DeleteFileA
CreateFileA
ExitProcess
FlushFileBuffers
VirtualAlloc

user32

GetUserObjectInformationW
SendMessageTimeoutW
CharPrevW
GetShellWindow
GetWindowThreadProcessId
GetThreadDesktop
GetProcessWindowStation

advapi32

QueryServiceStatusEx
RevertToSelf
RegSetKeyValueW
RegOpenKeyW
RegFlushKey
RegEnumKeyExW
CreateWellKnownSid
CreateProcessAsUserW
RegRenameKey
RegDeleteKeyW
RegCreateKeyW
StartServiceW
ImpersonateLoggedOnUser
OpenServiceW
OpenSCManagerW
CloseServiceHandle
RegSetValueExW
RegQueryInfoKeyW
RegOpenKeyExW
RegEnumValueW
RegDeleteValueW
RegCreateKeyExW
RegCloseKey

shell32

SHCreateItemFromParsingName
SHAssocEnumHandlersForProtocolByApplication
SHGetSpecialFolderPathW
ShellExecuteExW
SHGetKnownFolderPath

ole32

CoCreateInstance
StringFromCLSID
CoUninitialize
CoTaskMemFree
CoGetObject
CLSIDFromString
CoCreateGuid
CoInitializeSecurity
CoInitializeEx

oleaut32

VariantInit
SysStringLen
SysFreeString
SysAllocString

rpcrt4

RpcBindingSetAuthInfoExW
RpcStringFreeW
RpcStringBindingComposeW
RpcBindingFree
RpcRaiseException
RpcAsyncInitializeHandle
RpcAsyncCompleteCall
NdrAsyncClientCall
UuidCompare
UuidCreateNil
UuidFromStringW
NdrClientCall2
RpcBindingFromStringBindingW

secur32

QuerySecurityContextToken
AcceptSecurityContext
InitializeSecurityContextW
FreeCredentialsHandle
AcquireCredentialsHandleW
DeleteSecurityContext

ntdll

RtlCreateHeap
RtlDestroyHeap
RtlSetHeapInformation
RtlAllocateHeap
RtlFreeHeap
RtlImageNtHeader
RtlCreateBoundaryDescriptor
RtlDeleteBoundaryDescriptor
RtlAddSIDToBoundaryDescriptor
NtQuerySystemInformation
NtCreatePrivateNamespace
NtDeletePrivateNamespace
NtFsControlFile
NtReadFile
NtQueryInformationFile
NtQueryInformationToken
NtOpenThreadToken
RtlNtStatusToDosErrorNoTeb
NtRemoveProcessDebug
NtDeleteValueKey
NtOpenProcess
NtQueryInformationProcess
NtAllocateVirtualMemory
NtFreeVirtualMemory
RtlUnwindEx
NtTerminateProcess
RtlExpandEnvironmentStrings_U
RtlQueryElevationFlags
NtCompressKey
RtlImageDirectoryEntryToData
RtlExitUserProcess
LdrGetDllHandleEx
RtlPrefixUnicodeString
RtlGetVersion
RtlGetCurrentPeb
RtlSubAuthoritySid
RtlInitializeSid
RtlLengthRequiredSid
RtlRaiseStatus
RtlReleasePebLock
RtlAcquirePebLock
NtQueryValueKey
LdrGetDllHandle
LdrFindEntryForAddress
LdrFindResource_U
LdrEnumerateLoadedModules
LdrAccessResource
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
RtlPcToFileHeader
RtlGetFrame
NtSetInformationToken
NtDuplicateToken
NtOpenProcessToken
NtDuplicateObject
DbgUiSetThreadDebugObject
RtlLengthSid
RtlAllocateAndInitializeSid
RtlFreeSid
NtSetValueKey
NtOpenKey
NtCreateKey
RtlAppendUnicodeToString
RtlAppendUnicodeStringToString
RtlFormatCurrentUserKeyPath
NtDeleteFile
NtUnmapViewOfSection
NtMapViewOfSection
NtCreateSection
NtClose
RtlPopFrame
RtlPushFrame
NtNotifyChangeDirectoryFile
NtCreateFile
NtWaitForSingleObject
NtSetEvent
RtlDosPathNameToNtPathName_U
RtlComputeCrc32
NtCreateEvent
RtlFreeUnicodeString
RtlRandomEx
RtlEqualUnicodeString
NtDeleteKey
RtlInitUnicodeString

comctl32

ord17

cabinet

ord10
ord13
ord14
ord11

msdelta

ApplyDeltaB
DeltaFree

bcrypt

BCryptDestroyKey
BCryptDecrypt
BCryptGenerateSymmetricKey
BCryptCloseAlgorithmProvider
BCryptGetProperty
BCryptOpenAlgorithmProvider

Sections

.text
Size: 134KB - Virtual size: 133KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 101KB - Virtual size: 101KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 7KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 500B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 73KB - Virtual size: 73KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

3164b0e3117a873c87f9d6c1f176d6c8

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

advapi32

shell32

ole32

oleaut32

rpcrt4

secur32

ntdll

comctl32

cabinet

msdelta

bcrypt

Sections

.text Size: 134KB - Virtual size: 133KB

.rdata Size: 101KB - Virtual size: 101KB

.data Size: 7KB - Virtual size: 10KB

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

_RDATA Size: 512B - Virtual size: 500B

.rsrc Size: 73KB - Virtual size: 73KB

.reloc Size: 2KB - Virtual size: 1KB

.text
Size: 134KB - Virtual size: 133KB

.rdata
Size: 101KB - Virtual size: 101KB

.data
Size: 7KB - Virtual size: 10KB

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

_RDATA
Size: 512B - Virtual size: 500B

.rsrc
Size: 73KB - Virtual size: 73KB

.reloc
Size: 2KB - Virtual size: 1KB