2024-02-28_87f997981ba1b5f285a69d7e331bb5a9_cobalt-strike_lockbit

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General

Target

2024-02-28_87f997981ba1b5f285a69d7e331bb5a9_cobalt-strike_lockbit
Size

288KB
MD5

87f997981ba1b5f285a69d7e331bb5a9
SHA1

71799660fee632ec1262c7fbdcbe84ef72e5af39
SHA256

280c6e2fa4a2fbbe0a20655261c56c604e2ad506fbb34ac5de98a225247e717b
SHA512

133310b896da2e2efcc4acab54c064ec8f54df173b304417a4c7edcbfb2857f854118b4a5fb3b571d9e51670e54ea289a3035ed9490011c4d10a2b7fd0dd3bc8
SSDEEP

3072:m4jPfhWV9XBb0MAtrg0OoHpFcNTXT2pTnVR1g2br54Qun9UItLpCEcbqGpYl7WUY:m4jUXB0MZDoJFcp0tgI6QkUIcbpO5zx+

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
2024-02-28_87f997981ba1b5f285a69d7e331bb5a9_cobalt-strike_lockbit

Files

2024-02-28_87f997981ba1b5f285a69d7e331bb5a9_cobalt-strike_lockbit
.exe windows:5 windows x86 arch:x86

0db8876464e8e995f3ae002d75c7bbeb

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

kernel32

lstrlenW
InterlockedExchange
ResetEvent
CreateEventW
CancelIo
TryEnterCriticalSection
SetWaitableTimer
CreateWaitableTimerW
GetCurrentProcess
GetProcessHeap
OpenProcess
GetModuleFileNameW
GetCurrentProcessId
LocalFree
GetThreadContext
SetThreadContext
GetFileAttributesA
GetExitCodeProcess
CreateProcessA
GetSystemDirectoryA
VirtualAllocEx
WriteProcessMemory
ResumeThread
FreeLibrary
GetProcAddress
VirtualProtect
CreateMutexW
FindFirstFileW
SetUnhandledExceptionFilter
SystemTimeToFileTime
WideCharToMultiByte
CreateDirectoryW
GlobalLock
WriteFile
GlobalAlloc
LoadLibraryW
GetConsoleWindow
FileTimeToSystemTime
CreateFileW
lstrcmpW
GlobalUnlock
GlobalFree
FindClose
GetLocalTime
RemoveDirectoryW
lstrcatW
IsDebuggerPresent
FindNextFileW
GetFileTime
DeleteFileW
GetSystemTime
SetFileAttributesW
CreateThread
FlushFileBuffers
WriteConsoleW
SetStdHandle
LCMapStringW
MultiByteToWideChar
GetConsoleMode
GetConsoleCP
SetFilePointer
RtlUnwind
SetLastError
SwitchToThread
GetCurrentThreadId
CloseHandle
GetLastError
CreateEventA
Sleep
WaitForSingleObject
SetEvent
DeleteCriticalSection
EnterCriticalSection
HeapCreate
LeaveCriticalSection
HeapDestroy
InitializeCriticalSectionAndSpinCount
InterlockedCompareExchange
HeapFree
InterlockedDecrement
InterlockedIncrement
HeapAlloc
VirtualAlloc
GlobalSize
VirtualFree
GetSystemTimeAsFileTime
GetTickCount
QueryPerformanceCounter
GetStartupInfoW
GetFileType
SetHandleCount
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetStringTypeW
IsValidCodePage
GetOEMCP
GetACP
GetCPInfo
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
GetStdHandle
ExitProcess
IsProcessorFeaturePresent
UnhandledExceptionFilter
TerminateProcess
RaiseException
HeapSetInformation
GetCommandLineW
VirtualQuery
GetSystemInfo
GetModuleHandleW
EncodePointer
DecodePointer
ExitThread
HeapSize
HeapReAlloc

user32

PeekMessageW
TranslateMessage
MsgWaitForMultipleObjects
GetSystemMetrics
ShowWindow
GetDesktopWindow
ReleaseDC
GetInputState
GetDC
wsprintfW
PostThreadMessageA
DispatchMessageW

gdi32

CreateDIBSection
GetDeviceCaps
StretchBlt
GetDIBits
SetDIBColorTable
DeleteObject
SelectObject
CreateCompatibleDC
CreateCompatibleBitmap
GetObjectW
SetStretchBltMode
DeleteDC

advapi32

RegOpenKeyExW
RegDeleteValueW
RegQueryValueExW
RegCreateKeyW
RegCloseKey
RegSetValueExW

shell32

SHGetFolderPathW

ole32

CreateStreamOnHGlobal
GetHGlobalFromStream

ws2_32

WSAEnumNetworkEvents
WSAEventSelect
WSACloseEvent
WSACreateEvent
WSASetLastError
WSAResetEvent
WSAWaitForMultipleEvents
WSAGetLastError
connect
WSAStartup
select
htons
setsockopt
WSACleanup
recv
socket
closesocket
WSAIoctl
send
shutdown
gethostbyname

winmm

timeGetTime

gdiplus

GdipGetImagePixelFormat
GdipCreateBitmapFromStream
GdipGetImagePalette
GdiplusShutdown
GdipSaveImageToStream
GdipFree
GdipGetImageHeight
GdipCreateBitmapFromScan0
GdipDeleteGraphics
GdipGetImageGraphicsContext
GdipBitmapUnlockBits
GdiplusStartup
GdipGetImageWidth
GdipCloneImage
GdipBitmapLockBits
GdipGetImagePaletteSize
GdipGetImageEncoders
GdipCreateBitmapFromHBITMAP
GdipDisposeImage
GdipGetImageEncodersSize
GdipAlloc
GdipDrawImageI

Sections

.text
Size: 89KB - Virtual size: 88KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 19KB - Virtual size: 18KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 169KB - Virtual size: 185KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 512B - Virtual size: 436B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 9KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

0db8876464e8e995f3ae002d75c7bbeb

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

advapi32

shell32

ole32

ws2_32

winmm

gdiplus

Sections

.text Size: 89KB - Virtual size: 88KB

.rdata Size: 19KB - Virtual size: 18KB

.data Size: 169KB - Virtual size: 185KB

.rsrc Size: 512B - Virtual size: 436B

.reloc Size: 9KB - Virtual size: 9KB

.text
Size: 89KB - Virtual size: 88KB

.rdata
Size: 19KB - Virtual size: 18KB

.data
Size: 169KB - Virtual size: 185KB

.rsrc
Size: 512B - Virtual size: 436B

.reloc
Size: 9KB - Virtual size: 9KB