2024-05-04_78244af8c89dd9e614271c467cc45b07_ryuk

Sharing

Copy URL Twitter E-mail

General

Target

2024-05-04_78244af8c89dd9e614271c467cc45b07_ryuk
Size

2.9MB
MD5

78244af8c89dd9e614271c467cc45b07
SHA1

5a51d67217f21eac7c42908547164b3dd415d413
SHA256

0b6a8c31526fba8c87b2e7fe142d20f4f09c5eaa6a084becc5983bfe20e469b0
SHA512

f5b4d7d6cd2b2b25553267819f443da60e7ab54ea57f3ab349d775d7efe602f1b156ae4d34d1ccaac8210e4d5ca1fa7f44d831b0a5abd239cf895b59a0ae4d14
SSDEEP

49152:9NgWHP7PpPuN1zm28/z3rptE6ComG/6zDmg27RnWGj:UWUN14ptE6CmuD527BWG

Score

4^/10

pdf link

Malware Config

Signatures

HTTP links in PDF interactive object 1 IoCs

Detects HTTP links in interactive objects within PDF files.

pdf link

resource	yara_rule
sample	pdf_with_link_action

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-05-04_78244af8c89dd9e614271c467cc45b07_ryuk

Files

2024-05-04_78244af8c89dd9e614271c467cc45b07_ryuk
.exe windows:5 windows x64 arch:x64

f6118bdb9f712c480c3d5d5d2236da73

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB Paths

C:\buildworker\cef_win32\build\root\chromium\src\out\Release_GN_x64\cefclient.exe.pdb

Imports

libcef

cef_api_hash
cef_base64encode
cef_basetime_now
cef_begin_tracing
cef_binary_value_create
cef_browser_host_create_browser
cef_browser_view_create
cef_browser_view_get_for_browser
cef_command_line_create
cef_command_line_get_global
cef_crash_reporting_enabled
cef_create_context_shared
cef_currently_on
cef_dictionary_value_create
cef_display_convert_screen_rect_from_pixels
cef_display_convert_screen_rect_to_pixels
cef_display_get_matching_bounds
cef_do_message_loop_work
cef_drag_data_create
cef_enable_highdpi_support
cef_end_tracing
cef_execute_process
cef_get_current_platform_thread_id
cef_get_mime_type
cef_get_min_log_level
cef_get_path
cef_image_create
cef_initialize
cef_is_rtl
cef_label_button_create
cef_list_value_create
cef_load_crlsets_file
cef_log
cef_menu_button_create
cef_menu_model_create
cef_panel_create
cef_parse_json
cef_parse_jsonand_return_error
cef_parse_url
cef_post_data_create
cef_post_data_element_create
cef_post_delayed_task
cef_post_task
cef_preference_manager_get_global
cef_process_message_create
cef_quit_message_loop
cef_register_scheme_handler_factory
cef_request_context_create_context
cef_request_context_get_global_context
cef_request_create
cef_run_message_loop
cef_server_create
cef_set_crash_key_value
cef_set_osmodal_loop
cef_shared_process_message_builder_create
cef_shutdown
cef_stream_reader_create_for_data
cef_stream_reader_create_for_handler
cef_stream_writer_create_for_handler
cef_string_list_alloc
cef_string_list_append
cef_string_list_free
cef_string_list_size
cef_string_list_value
cef_string_map_alloc
cef_string_map_append
cef_string_map_free
cef_string_map_key
cef_string_map_size
cef_string_map_value
cef_string_multimap_alloc
cef_string_multimap_append
cef_string_multimap_free
cef_string_multimap_key
cef_string_multimap_size
cef_string_multimap_value
cef_string_userfree_utf8_free
cef_string_utf16_clear
cef_string_utf16_to_lower
cef_string_utf8_clear
cef_string_utf8_cmp
cef_string_utf8_set
cef_string_utf8_to_utf16
cef_string_utf8_to_wide
cef_string_wide_clear
cef_string_wide_to_utf8
cef_textfield_create
cef_time_delta
cef_time_from_basetime
cef_time_now
cef_time_to_basetime
cef_time_to_timet
cef_uriencode
cef_v8context_get_current_context
cef_v8value_create_array
cef_v8value_create_array_buffer
cef_v8value_create_bool
cef_v8value_create_date
cef_v8value_create_double
cef_v8value_create_function
cef_v8value_create_int
cef_v8value_create_null
cef_v8value_create_object
cef_v8value_create_string
cef_v8value_create_uint
cef_v8value_create_undefined
cef_value_create
cef_window_create_top_level
cef_write_json

imm32

ImmAssociateContextEx
ImmGetCompositionStringW
ImmGetContext
ImmNotifyIME
ImmReleaseContext
ImmSetCandidateWindow

oleacc

AccessibleObjectFromWindow
LresultFromObject

opengl32

glBegin
glBindTexture
glBlendFunc
glClear
glClearColor
glColor3f
glColor4f
glDeleteTextures
glDisable
glDrawArrays
glEnable
glEnd
glGenTextures
glHint
glInterleavedArrays
glLineWidth
glLoadIdentity
glMatrixMode
glOrtho
glPixelStorei
glPopAttrib
glPopMatrix
glPushAttrib
glPushMatrix
glRotatef
glTexEnvf
glTexImage2D
glTexParameteri
glTexSubImage2D
glVertex2f
glVertex2i
glViewport
wglCreateContext
wglDeleteContext
wglMakeCurrent

comdlg32

FindTextW

gdi32

ChoosePixelFormat
CombineRgn
CreateFontW
CreateRectRgn
CreateSolidBrush
DeleteObject
GetDeviceCaps
PtInRegion
SetPixelFormat
SetRectRgn
SwapBuffers

oleaut32

SysAllocString
SysFreeString

shell32

DragFinish
DragQueryFileW
SHGetFolderPathW

user32

AdjustWindowRectEx
BeginDeferWindowPos
BeginPaint
CallWindowProcW
ClientToScreen
CloseDesktop
CloseTouchInputHandle
CloseWindowStation
CreateCaret
CreateDesktopW
CreateWindowExW
CreateWindowStationW
DefWindowProcW
DeferWindowPos
DestroyCaret
DestroyWindow
DialogBoxParamW
DispatchMessageW
EnableWindow
EndDeferWindowPos
EndDialog
EndPaint
EnumChildWindows
GetAncestor
GetCapture
GetClientRect
GetCursorPos
GetDC
GetDoubleClickTime
GetFocus
GetKeyState
GetKeyboardLayout
GetMenu
GetMessageExtraInfo
GetMessageTime
GetMessageW
GetMonitorInfoW
GetParent
GetProcessWindowStation
GetPropW
GetSubMenu
GetSystemMetrics
GetThreadDesktop
GetTouchInputInfo
GetUserObjectInformationW
GetWindowLongPtrW
GetWindowLongW
GetWindowPlacement
InvalidateRect
IsDialogMessageW
IsWindow
IsWindowEnabled
IsWindowVisible
KillTimer
LoadAcceleratorsW
LoadCursorW
LoadIconW
LoadStringW
MonitorFromRect
NotifyWinEvent
PostMessageW
PostQuitMessage
PtInRect
RegisterClassExW
RegisterClipboardFormatW
RegisterTouchWindow
RegisterWindowMessageW
ReleaseCapture
ReleaseDC
RemoveMenu
RemovePropW
ScreenToClient
SendMessageW
SetCapture
SetCaretPos
SetClassLongPtrW
SetCursor
SetFocus
SetMenu
SetParent
SetProcessWindowStation
SetPropW
SetRect
SetTimer
SetWindowLongPtrW
SetWindowPlacement
SetWindowPos
SetWindowTextW
ShowWindow
TrackMouseEvent
TranslateAcceleratorW
TranslateMessage
UnregisterClassW
UpdateWindow
VkKeyScanExW
WindowFromPoint

kernel32

AcquireSRWLockExclusive
AcquireSRWLockShared
AssignProcessToJobObject
CloseHandle
CompareStringW
CreateEventW
CreateFileMappingW
CreateFileW
CreateIoCompletionPort
CreateJobObjectW
CreateMutexW
CreateNamedPipeW
CreateRemoteThread
CreateThread
DebugBreak
DecodePointer
DeleteCriticalSection
DeleteProcThreadAttributeList
DuplicateHandle
EncodePointer
EnterCriticalSection
EnumSystemLocalesEx
EnumSystemLocalesW
ExitProcess
ExitThread
ExpandEnvironmentStringsW
FindClose
FindFirstFileExW
FindNextFileW
FindResourceW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FormatMessageA
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentProcessorNumber
GetCurrentThread
GetCurrentThreadId
GetDateFormatW
GetDriveTypeW
GetEnvironmentStringsW
GetFileAttributesW
GetFileSizeEx
GetFileType
GetFullPathNameW
GetLastError
GetLocalTime
GetLocaleInfoW
GetLongPathNameW
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetNativeSystemInfo
GetOEMCP
GetProcAddress
GetProcessHandleCount
GetProcessHeap
GetProcessHeaps
GetProductInfo
GetQueuedCompletionStatus
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemInfo
GetSystemTimeAsFileTime
GetThreadId
GetThreadPriority
GetTickCount
GetTimeFormatW
GetTimeZoneInformation
GetUserDefaultLCID
GetUserDefaultLangID
GetUserDefaultLocaleName
GetVersionExW
GlobalAlloc
GlobalLock
GlobalSize
GlobalUnlock
HeapDestroy
HeapSetInformation
InitOnceExecuteOnce
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeProcThreadAttributeList
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
IsWow64Process
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LoadLibraryW
LoadResource
LocalFree
LockResource
MapViewOfFile
MultiByteToWideChar
OutputDebugStringA
OutputDebugStringW
PostQueuedCompletionStatus
QueryDosDeviceW
QueryInformationJobObject
QueryPerformanceCounter
QueryPerformanceFrequency
QueryThreadCycleTime
RaiseException
ReadConsoleW
ReadFile
ReadProcessMemory
RegisterWaitForSingleObject
ReleaseSRWLockExclusive
ReleaseSRWLockShared
ResetEvent
RtlCaptureContext
RtlCaptureStackBackTrace
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetCurrentDirectoryW
SetEndOfFile
SetEnvironmentVariableW
SetEvent
SetFilePointerEx
SetHandleInformation
SetInformationJobObject
SetLastError
SetStdHandle
SetThreadAffinityMask
SetThreadPriority
SetUnhandledExceptionFilter
SizeofResource
Sleep
SleepConditionVariableSRW
TerminateJobObject
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryAcquireSRWLockExclusive
UnhandledExceptionFilter
UnmapViewOfFile
UnregisterWait
UnregisterWaitEx
UpdateProcThreadAttribute
VerSetConditionMask
VerifyVersionInfoW
VirtualAlloc
VirtualAllocEx
VirtualFree
VirtualFreeEx
VirtualProtect
VirtualProtectEx
VirtualQuery
WaitForSingleObject
WaitForSingleObjectEx
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile
WriteProcessMemory
lstrlenA
lstrlenW

winmm

timeGetTime

Exports

Exports

GetHandleVerifier
IsSandboxedProcess

Sections

.text
Size: 1.7MB - Virtual size: 1.7MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 235KB - Virtual size: 235KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 66KB - Virtual size: 109KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 66KB - Virtual size: 66KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.00cfg
Size: 512B - Virtual size: 40B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gxfg
Size: 11KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 140B

.tls
Size: 512B - Virtual size: 297B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.voltbl
Size: 512B - Virtual size: 68B

_RDATA
Size: 512B - Virtual size: 244B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 271KB - Virtual size: 271KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 580KB - Virtual size: 584KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

Files

f6118bdb9f712c480c3d5d5d2236da73

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

libcef

imm32

oleacc

opengl32

comdlg32

gdi32

oleaut32

shell32

user32

kernel32

winmm

Exports

Exports

Sections

.text Size: 1.7MB - Virtual size: 1.7MB

.rdata Size: 235KB - Virtual size: 235KB

.data Size: 66KB - Virtual size: 109KB

.pdata Size: 66KB - Virtual size: 66KB

.00cfg Size: 512B - Virtual size: 40B

.gxfg Size: 11KB - Virtual size: 11KB

.retplne Size: 512B - Virtual size: 140B

.tls Size: 512B - Virtual size: 297B

.voltbl Size: 512B - Virtual size: 68B

_RDATA Size: 512B - Virtual size: 244B

.rsrc Size: 271KB - Virtual size: 271KB

.reloc Size: 580KB - Virtual size: 584KB

.text
Size: 1.7MB - Virtual size: 1.7MB

.rdata
Size: 235KB - Virtual size: 235KB

.data
Size: 66KB - Virtual size: 109KB

.pdata
Size: 66KB - Virtual size: 66KB

.00cfg
Size: 512B - Virtual size: 40B

.gxfg
Size: 11KB - Virtual size: 11KB

.retplne
Size: 512B - Virtual size: 140B

.tls
Size: 512B - Virtual size: 297B

.voltbl
Size: 512B - Virtual size: 68B

_RDATA
Size: 512B - Virtual size: 244B

.rsrc
Size: 271KB - Virtual size: 271KB

.reloc
Size: 580KB - Virtual size: 584KB