2024-04-17_a6983b69b93d7679d6e25b0b85ef6f34_ryuk

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General

Target

2024-04-17_a6983b69b93d7679d6e25b0b85ef6f34_ryuk
Size

2.1MB
MD5

a6983b69b93d7679d6e25b0b85ef6f34
SHA1

39d9d3c180034566d717b56725bfd14d8349dbf2
SHA256

1bba1753e4c3841837f70d098f91e61012265823b6b776490b10ea48f86e138c
SHA512

ffaed441f16124c723fcf94a1a618dd509c40592fcf0a0a724fd652d93bb0ee6381b728f58fa5e5a75aa47c573b382db694421ea7ca5c66e791a2f8464f34dc7
SSDEEP

49152:ndp+Kc7/y4W/JqA96VvQvtiEIyhDmg27RnWGj:nXxc7lvQl7hD527BWG

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-17_a6983b69b93d7679d6e25b0b85ef6f34_ryuk

Files

2024-04-17_a6983b69b93d7679d6e25b0b85ef6f34_ryuk
.exe windows:5 windows x64 arch:x64

1f60bb4f40d5ad8447b07c57e082d2bd

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\cefsimple.exe.pdb

Imports

libcef

cef_api_hash
cef_base64encode
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_enable_highdpi_support
cef_execute_process
cef_initialize
cef_log
cef_quit_message_loop
cef_run_message_loop
cef_shutdown
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_utf8_clear
cef_string_utf8_cmp
cef_string_utf8_set
cef_string_utf8_to_wide
cef_string_wide_clear
cef_string_wide_to_utf8
cef_uriencode
cef_window_create_top_level

user32

CloseDesktop
CloseWindowStation
CreateDesktopW
CreateWindowStationW
GetProcessWindowStation
GetThreadDesktop
GetUserObjectInformationW
SetProcessWindowStation
SetWindowTextW

kernel32

AcquireSRWLockExclusive
AcquireSRWLockShared
AssignProcessToJobObject
CloseHandle
CompareStringW
CreateEventW
CreateFileMappingW
CreateFileW
CreateIoCompletionPort
CreateJobObjectW
CreateMutexW
CreateNamedPipeW
CreateRemoteThread
CreateThread
DebugBreak
DeleteCriticalSection
DeleteProcThreadAttributeList
DuplicateHandle
EncodePointer
EnterCriticalSection
EnumSystemLocalesEx
EnumSystemLocalesW
ExitProcess
ExitThread
ExpandEnvironmentStringsW
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FormatMessageA
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentProcessorNumber
GetCurrentThread
GetCurrentThreadId
GetDateFormatW
GetEnvironmentStringsW
GetFileAttributesW
GetFileSizeEx
GetFileType
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
HeapDestroy
HeapSetInformation
InitOnceExecuteOnce
InitializeCriticalSectionAndSpinCount
InitializeProcThreadAttributeList
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
IsWow64Process
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LoadLibraryW
LocalFree
MapViewOfFile
MultiByteToWideChar
OutputDebugStringA
PostQueuedCompletionStatus
QueryDosDeviceW
QueryInformationJobObject
QueryPerformanceCounter
QueryPerformanceFrequency
QueryThreadCycleTime
RaiseException
ReadConsoleW
ReadFile
ReadProcessMemory
RegisterWaitForSingleObject
ReleaseSRWLockExclusive
ReleaseSRWLockShared
ResetEvent
RtlCaptureContext
RtlCaptureStackBackTrace
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetCurrentDirectoryW
SetEnvironmentVariableW
SetEvent
SetFilePointerEx
SetHandleInformation
SetInformationJobObject
SetLastError
SetStdHandle
SetThreadAffinityMask
SetThreadPriority
SetUnhandledExceptionFilter
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: 1.2MB - Virtual size: 1.2MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 186KB - Virtual size: 185KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 63KB - Virtual size: 106KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 52KB - Virtual size: 51KB

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: 10KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 92B

.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: 48KB - Virtual size: 47KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 576KB - Virtual size: 580KB

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

1f60bb4f40d5ad8447b07c57e082d2bd

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

libcef

user32

kernel32

winmm

Exports

Exports

Sections

.text Size: 1.2MB - Virtual size: 1.2MB

.rdata Size: 186KB - Virtual size: 185KB

.data Size: 63KB - Virtual size: 106KB

.pdata Size: 52KB - Virtual size: 51KB

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

.gxfg Size: 10KB - Virtual size: 10KB

.retplne Size: 512B - Virtual size: 92B

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

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

_RDATA Size: 512B - Virtual size: 244B

.rsrc Size: 48KB - Virtual size: 47KB

.reloc Size: 576KB - Virtual size: 580KB

.text
Size: 1.2MB - Virtual size: 1.2MB

.rdata
Size: 186KB - Virtual size: 185KB

.data
Size: 63KB - Virtual size: 106KB

.pdata
Size: 52KB - Virtual size: 51KB

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

.gxfg
Size: 10KB - Virtual size: 10KB

.retplne
Size: 512B - Virtual size: 92B

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

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

_RDATA
Size: 512B - Virtual size: 244B

.rsrc
Size: 48KB - Virtual size: 47KB

.reloc
Size: 576KB - Virtual size: 580KB