Static task
static1
Behavioral task
behavioral1
Sample
2024-09-04_b43795246d21660397ce40921e97a6b7_cobalt-strike_hijackloader_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-04_b43795246d21660397ce40921e97a6b7_cobalt-strike_hijackloader_ryuk.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-04_b43795246d21660397ce40921e97a6b7_cobalt-strike_hijackloader_ryuk
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Size
21.1MB
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MD5
b43795246d21660397ce40921e97a6b7
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SHA1
74cbad01661054e19b8a310a7885883fe3009926
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SHA256
aac23620a65755dda56281b38c13cf0835ab40f5c88f58a39f0de498a6d9b33d
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SHA512
722c80ba0f39ee6b8947c1547e392b7bce181347d898772fd2ad32fabd928e8c1fd8b51acbbd6f66080d1f228a513c78d374f2a1d157a532c216025ebf079cb2
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SSDEEP
393216:1ZxNUfOtWAm2dk6Y3itRMj1n9ea96baU3zKY9/qJ+hQ:BNi80DmfMR3bBY9/dh
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-09-04_b43795246d21660397ce40921e97a6b7_cobalt-strike_hijackloader_ryuk
Files
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2024-09-04_b43795246d21660397ce40921e97a6b7_cobalt-strike_hijackloader_ryuk.exe windows:5 windows x64 arch:x64
c7125f57470fa6ec0132b5bcc3e2928c
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
WriteConsoleW
SetFilePointerEx
GetConsoleMode
GetConsoleCP
FlushFileBuffers
HeapSize
GetProcessHeap
GetStringTypeW
GetFileType
SetStdHandle
GetEnvironmentStringsW
GetCommandLineW
GetCommandLineA
GetCPInfo
GetOEMCP
IsValidCodePage
FindNextFileA
FindFirstFileExA
FindClose
CreateFileW
LoadLibraryA
lstrcatW
CloseHandle
WriteFile
FreeEnvironmentStringsW
GetProcAddress
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
RtlUnwindEx
GetLastError
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
GetStdHandle
GetModuleFileNameA
MultiByteToWideChar
WideCharToMultiByte
ExitProcess
GetModuleHandleExW
GetACP
HeapFree
HeapAlloc
HeapReAlloc
LCMapStringW
RaiseException
user32
LoadIconW
LoadCursorW
LoadBitmapW
MessageBoxW
SetWindowTextW
InvalidateRect
EndPaint
BeginPaint
GetForegroundWindow
UpdateWindow
ModifyMenuW
EnableMenuItem
GetMenu
KillTimer
SetTimer
ShowWindow
CreateWindowExW
RegisterClassW
PostQuitMessage
DefWindowProcW
SendMessageW
DispatchMessageW
TranslateMessage
GetMessageW
DrawEdge
wsprintfW
CheckMenuItem
gdi32
DeleteObject
DeleteDC
CreatePatternBrush
CreateCompatibleDC
BitBlt
SelectObject
shell32
SHGetSpecialFolderPathW
Sections
.text Size: 48KB - Virtual size: 47KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 36KB - Virtual size: 35KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 20.9MB - Virtual size: 20.9MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 3KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gfids Size: 512B - Virtual size: 160B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 35KB - Virtual size: 34KB
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