2024-10-04_35a39b5dab654322931ab6920106903e_cobalt-strike_ryuk

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General

Target

2024-10-04_35a39b5dab654322931ab6920106903e_cobalt-strike_ryuk
Size

1.6MB
MD5

35a39b5dab654322931ab6920106903e
SHA1

d1486d4e9972a1e18322ae679c56e004ffd777ff
SHA256

bb1b0ea17894b330457b93afc86b936ebc5be9f51fae6b6f128591a627db120c
SHA512

c3523a8cbb9a8cf3233e05a13337686086f2c32c8aae88869060af0013cca0623b25cb5d29977afad62036275efd90da86361787c390d7ab25cfe6c7b473e60a
SSDEEP

24576:TNbqRetBjNKieTnCPXybrXMfq4K6ApZpiZxKK6oanWowemBJo56K:ZbvXKikCPC4q4K7pZ8xKDwe56

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-10-04_35a39b5dab654322931ab6920106903e_cobalt-strike_ryuk

Files

2024-10-04_35a39b5dab654322931ab6920106903e_cobalt-strike_ryuk
.exe windows:5 windows x64 arch:x64

3946cf734a9743c06bdb6bf0f3e06722

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

Beep
CancelIo
CloseHandle
CompareStringW
CreateDirectoryW
CreateEventA
CreateEventW
CreateFileA
CreateFileMappingA
CreateFileW
CreateMutexW
CreatePipe
CreateProcessW
CreateThread
DeleteCriticalSection
DeleteFileW
DeviceIoControl
DuplicateHandle
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExpandEnvironmentStringsA
FileTimeToLocalFileTime
FileTimeToSystemTime
FindClose
FindCloseChangeNotification
FindFirstFileExW
FindFirstFileW
FindNextChangeNotification
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FormatMessageA
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetComputerNameW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetDiskFreeSpaceExW
GetDiskFreeSpaceW
GetDriveTypeW
GetEnvironmentStringsW
GetFileAttributesExW
GetFileAttributesW
GetFileInformationByHandle
GetFileSize
GetFileSizeEx
GetFileType
GetFullPathNameW
GetLastError
GetLocalTime
GetLocaleInfoW
GetLogicalDriveStringsW
GetLogicalDrives
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetOverlappedResult
GetProcAddress
GetProcessAffinityMask
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDirectoryA
GetSystemInfo
GetSystemPowerStatus
GetSystemTime
GetSystemTimeAsFileTime
GetThreadPriority
GetTickCount
GetTimeZoneInformation
GetUserDefaultLCID
GetUserDefaultLangID
GetVersionExW
GetVolumeInformationW
GetWindowsDirectoryW
GlobalAlloc
GlobalFree
GlobalLock
GlobalMemoryStatusEx
GlobalUnlock
HeapAlloc
HeapCreate
HeapDestroy
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSection
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
K32GetProcessMemoryInfo
LCMapStringW
LeaveCriticalSection
LoadLibraryA
LoadLibraryExW
LoadLibraryW
MapViewOfFile
MoveFileW
MulDiv
MultiByteToWideChar
OutputDebugStringW
PeekNamedPipe
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReadConsoleW
ReadFile
RegisterWaitForSingleObject
ReleaseMutex
ResetEvent
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetCurrentDirectoryW
SetEndOfFile
SetEnvironmentVariableW
SetErrorMode
SetEvent
SetFilePointer
SetFilePointerEx
SetHandleInformation
SetLastError
SetStdHandle
SetThreadPriority
SetUnhandledExceptionFilter
Sleep
SleepEx
SystemTimeToFileTime
SystemTimeToTzSpecificLocalTime
TerminateProcess
TerminateThread
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
UnmapViewOfFile
UnregisterWait
VerSetConditionMask
VerifyVersionInfoA
WaitForMultipleObjects
WaitForSingleObject
WaitNamedPipeA
WideCharToMultiByte
WriteConsoleW
WriteFile

user32

AdjustWindowRectEx
BeginPaint
CallWindowProcW
CharLowerW
CharUpperW
ChildWindowFromPointEx
ClientToScreen
ClipCursor
CloseClipboard
CreateAcceleratorTableW
CreateDialogParamW
CreateIconFromResource
CreateIconFromResourceEx
CreateIconIndirect
CreateWindowExW
DefFrameProcW
DefWindowProcW
DestroyAcceleratorTable
DestroyIcon
DestroyMenu
DestroyWindow
DispatchMessageW
DrawFocusRect
DrawFrameControl
DrawIconEx
DrawStateW
DrawTextW
EmptyClipboard
EnableWindow
EndDialog
EndPaint
EnumChildWindows
EnumDisplayDevicesW
EnumDisplaySettingsW
EnumWindows
FillRect
FindWindowA
GetActiveWindow
GetAsyncKeyState
GetCapture
GetClassNameW
GetClientRect
GetCursorPos
GetDC
GetDlgItemTextW
GetFocus
GetForegroundWindow
GetIconInfo
GetKeyState
GetLastInputInfo
GetMenu
GetMessagePos
GetMessageW
GetParent
GetPropW
GetScrollPos
GetScrollRange
GetSysColor
GetSysColorBrush
GetSystemMetrics
GetUpdateRect
GetWindow
GetWindowLongPtrW
GetWindowLongW
GetWindowRect
GetWindowTextLengthW
GetWindowTextW
GetWindowThreadProcessId
IntersectRect
InvalidateRect
IsChild
IsIconic
IsWindowEnabled
IsWindowVisible
IsZoomed
KillTimer
LoadCursorW
LoadIconW
MapWindowPoints
MoveWindow
MsgWaitForMultipleObjects
OpenClipboard
PeekMessageW
PostMessageW
RedrawWindow
RegisterClassExW
RegisterClassW
RegisterWindowMessageW
ReleaseCapture
ReleaseDC
RemovePropW
ScreenToClient
SendDlgItemMessageW
SendMessageA
SendMessageW
SetActiveWindow
SetCapture
SetClassLongPtrW
SetClipboardData
SetCursor
SetDlgItemTextW
SetFocus
SetForegroundWindow
SetLayeredWindowAttributes
SetMenu
SetPropW
SetRect
SetScrollInfo
SetScrollPos
SetTimer
SetWindowLongPtrW
SetWindowPos
SetWindowTextW
ShowWindow
SystemParametersInfoW
TrackPopupMenu
TranslateAcceleratorW
TranslateMessage
UnregisterClassW
UpdateWindow
ValidateRect

advapi32

CloseEventLog
CryptAcquireContextA
CryptCreateHash
CryptDestroyHash
CryptGenRandom
CryptGetHashParam
CryptHashData
CryptReleaseContext
GetNumberOfEventLogRecords
GetUserNameW
LookupAccountSidW
OpenEventLogW
ReadEventLogW
RegCloseKey
RegEnumKeyExW
RegOpenKeyExW

oleaut32

VariantClear
VariantInit

ole32

CoCreateInstance
CoInitialize
CoInitializeEx
CoInitializeSecurity
CoSetProxyBlanket
CoTaskMemFree
CoUninitialize
OleInitialize
OleUninitialize
RevokeDragDrop

shell32

SHGetFileInfoW
SHGetFolderLocation
SHGetPathFromIDListW
SHGetSpecialFolderLocation
ShellExecuteExW
ShellExecuteW
Shell_NotifyIconW

icmp

IcmpCloseHandle
IcmpCreateFile
IcmpSendEcho

iphlpapi

GetAdaptersInfo
GetIfTable

mpr

WNetGetConnectionW

pdh

PdhAddCounterW
PdhCollectQueryData
PdhGetFormattedCounterValue
PdhOpenQuery

wininet

InternetGetConnectedState

comdlg32

ChooseColorW
GetOpenFileNameW
GetSaveFileNameW

comctl32

ImageList_Add
ImageList_AddMasked
ImageList_Create
ImageList_Destroy
ImageList_Duplicate
ImageList_GetIconSize
ImageList_GetImageCount
ImageList_Remove
ImageList_Replace
ImageList_ReplaceIcon
ImageList_SetBkColor
InitCommonControlsEx
_TrackMouseEvent

ws2_32

WSACleanup
WSAGetLastError
WSAIoctl
WSASetLastError
WSAStartup
__WSAFDIsSet
accept
bind
closesocket
connect
freeaddrinfo
getaddrinfo
gethostname
getpeername
getsockname
getsockopt
htonl
htons
ioctlsocket
listen
ntohl
ntohs
recv
select
send
setsockopt
socket

gdi32

BitBlt
CreateBitmap
CreateCompatibleBitmap
CreateCompatibleDC
CreateDCW
CreateDIBSection
CreateFontIndirectW
CreateFontW
CreatePatternBrush
CreatePen
CreateRectRgn
CreateRectRgnIndirect
CreateSolidBrush
DeleteDC
DeleteObject
ExtSelectClipRgn
GdiGetBatchLimit
GdiSetBatchLimit
GetClipRgn
GetDIBits
GetDeviceCaps
GetObjectType
GetObjectW
GetPixel
GetStockObject
GetTextExtentPoint32W
GetTextMetricsW
LineTo
MoveToEx
OffsetViewportOrgEx
SelectClipRgn
SelectObject
SetBkColor
SetBkMode
SetBrushOrgEx
SetPixel
SetStretchBltMode
SetTextAlign
SetTextColor
SetViewportOrgEx
StretchBlt
TextOutW

winmm

mciSendCommandW
timeBeginPeriod

gdiplus

GdipDeleteFont
GdipDeleteGraphics
GdipDeleteMatrix
GdipDeletePath
GdipDeletePen
GdipDeleteStringFormat
GdipFree

crypt32

CertAddCertificateContextToStore
CertCloseStore
CertCreateCertificateChainEngine
CertEnumCertificatesInStore
CertFindCertificateInStore
CertFreeCertificateChain
CertFreeCertificateChainEngine
CertFreeCertificateContext
CertGetCertificateChain
CertGetNameStringA
CertOpenStore
CryptDecodeObjectEx
CryptQueryObject
CryptStringToBinaryA

bcrypt

BCryptCloseAlgorithmProvider
BCryptCreateHash
BCryptDecrypt
BCryptDeriveKey
BCryptDestroyHash
BCryptDestroyKey
BCryptDestroySecret
BCryptEncrypt
BCryptExportKey
BCryptFinalizeKeyPair
BCryptFinishHash
BCryptGenRandom
BCryptGenerateKeyPair
BCryptGetProperty
BCryptHashData
BCryptImportKey
BCryptImportKeyPair
BCryptOpenAlgorithmProvider
BCryptSecretAgreement
BCryptSetProperty
BCryptSignHash
BCryptVerifySignature

Sections

.text
Size: 810KB - Virtual size: 810KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 178KB - Virtual size: 177KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 88KB - Virtual size: 323KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 35KB - Virtual size: 35KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.code
Size: 422KB - Virtual size: 421KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 348B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 36KB - Virtual size: 36KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 10KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

3946cf734a9743c06bdb6bf0f3e06722

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

advapi32

oleaut32

ole32

shell32

icmp

iphlpapi

mpr

pdh

wininet

comdlg32

comctl32

ws2_32

gdi32

winmm

gdiplus

crypt32

bcrypt

Sections

.text Size: 810KB - Virtual size: 810KB

.rdata Size: 178KB - Virtual size: 177KB

.data Size: 88KB - Virtual size: 323KB

.pdata Size: 35KB - Virtual size: 35KB

.code Size: 422KB - Virtual size: 421KB

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

_RDATA Size: 512B - Virtual size: 348B

.rsrc Size: 36KB - Virtual size: 36KB

.reloc Size: 10KB - Virtual size: 9KB

.text
Size: 810KB - Virtual size: 810KB

.rdata
Size: 178KB - Virtual size: 177KB

.data
Size: 88KB - Virtual size: 323KB

.pdata
Size: 35KB - Virtual size: 35KB

.code
Size: 422KB - Virtual size: 421KB

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

_RDATA
Size: 512B - Virtual size: 348B

.rsrc
Size: 36KB - Virtual size: 36KB

.reloc
Size: 10KB - Virtual size: 9KB