2024-06-06_c6ef2196409b533bb81ab7f9b8406e23_cobalt-strike_lockbit

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General

Target

2024-06-06_c6ef2196409b533bb81ab7f9b8406e23_cobalt-strike_lockbit
Size

232KB
MD5

c6ef2196409b533bb81ab7f9b8406e23
SHA1

b7a4bfbd79bfbc8d8cb6a9323b65021b953b1d16
SHA256

6cd93383254cf3815e1736ebffafaefce11914565adce9afc7748f1d9b9ecb37
SHA512

ed5bedbb2919149a6d65fd726dba8416adb7abe06d552f0a756a0fc7fb56b5fb8253f8050be55a223d2e2b4fb93193c60e50534154008b9dbac7219b6857e22c
SSDEEP

3072:8cUjorcnfNdOaYAw08AYEIosiXu8pgSlJiMZQXUqmR20/M5txCW1Doo8dqh:8xGaNgZAd8AlIosiX/p4kqmUFCQ0Zdq

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
2024-06-06_c6ef2196409b533bb81ab7f9b8406e23_cobalt-strike_lockbit

Files

2024-06-06_c6ef2196409b533bb81ab7f9b8406e23_cobalt-strike_lockbit
.exe windows:6 windows x64 arch:x64

57c18978fe558d53adcd4ead468f62d5

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

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

user32

GetUserObjectInformationW
GetThreadDesktop
MessageBoxW
wsprintfW
GetDesktopWindow
GetProcessWindowStation
GetMessageW
CreateWindowExW
SendMessageW
UnregisterClassW
RegisterClassExW
DispatchMessageW
TranslateMessage
PostQuitMessage
LoadImageW
DefWindowProcW
GetDC

gdi32

SwapBuffers
SetPixelFormat
ChoosePixelFormat

advapi32

RegCopyTreeW
RegSetValueExW
RegCreateKeyExW
RegDeleteKeyW
RegCloseKey
RegQueryValueExW
RegDeleteValueW
RegEnumKeyExW
RegOpenKeyW
CreateProcessWithLogonW
CreateProcessAsUserW
RegQueryInfoKeyW
CloseServiceHandle
OpenSCManagerW
CreateWellKnownSid
RegOpenKeyExW
RegCreateKeyW
OpenServiceW
QueryServiceStatusEx
RegEnumValueW
RegFlushKey

shell32

SHCreateItemFromParsingName
ShellExecuteExW

ole32

CoCreateGuid
CoUninitialize
StringFromCLSID
CoTaskMemFree
CoGetObject
StringFromGUID2
CoCreateInstance
CoInitializeEx

oleaut32

SafeArrayCreateVector
SafeArrayUnaccessData
SysAllocString
SysFreeString
SafeArrayDestroy
SafeArrayAccessData

ntdll

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

apphelp

SdbWriteStringTag
SdbBeginWriteListTag
SdbCloseDatabaseWrite
SdbWriteBinaryTag
SdbWriteDWORDTag
SdbEndWriteListTag
SdbCreateDatabase

rpcrt4

RpcBindingFree
RpcStringFreeW
RpcBindingSetAuthInfoExW
NdrAsyncClientCall
RpcStringBindingComposeW
RpcBindingFromStringBindingW
RpcAsyncInitializeHandle
RpcRaiseException
RpcAsyncCompleteCall

opengl32

glClear
glDrawBuffer
wglMakeCurrent
glVertex2i
glBegin
glLoadIdentity
wglCreateContext
glReadPixels
glDrawPixels
glMatrixMode
glEnd
glColor4i

comctl32

ord17

cabinet

ord10
ord14
ord11
ord13

msdelta

GetDeltaInfoB
DeltaFree
ApplyDeltaB

bcrypt

BCryptGenerateSymmetricKey
BCryptCloseAlgorithmProvider
BCryptOpenAlgorithmProvider
BCryptDecrypt
BCryptGetProperty
BCryptDestroyKey

Sections

.text
Size: 101KB - Virtual size: 100KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 60KB - Virtual size: 59KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 5KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 4KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 148B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 58KB - Virtual size: 57KB

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

57c18978fe558d53adcd4ead468f62d5

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

advapi32

shell32

ole32

oleaut32

ntdll

apphelp

rpcrt4

opengl32

comctl32

cabinet

msdelta

bcrypt

Sections

.text Size: 101KB - Virtual size: 100KB

.rdata Size: 60KB - Virtual size: 59KB

.data Size: 5KB - Virtual size: 10KB

.pdata Size: 4KB - Virtual size: 4KB

_RDATA Size: 512B - Virtual size: 148B

.rsrc Size: 58KB - Virtual size: 57KB

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

.text
Size: 101KB - Virtual size: 100KB

.rdata
Size: 60KB - Virtual size: 59KB

.data
Size: 5KB - Virtual size: 10KB

.pdata
Size: 4KB - Virtual size: 4KB

_RDATA
Size: 512B - Virtual size: 148B

.rsrc
Size: 58KB - Virtual size: 57KB

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