2024-06-11_1a35f8c5e992c38426281dd99a386f3c_ryuk

Sharing

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General

Target

2024-06-11_1a35f8c5e992c38426281dd99a386f3c_ryuk
Size

1.1MB
MD5

1a35f8c5e992c38426281dd99a386f3c
SHA1

c65e3ce2574f51f8f3998f0b3b0c9774a37dec33
SHA256

42fb643dfd3d8e7098f78a5cd9376ad685ab1a4eb4aba658a36cc5f19f55734e
SHA512

da3be625a71df777f9bcfc7233ab93c19eb7ff2b743be06a63930f41027fed85aa6490b8f7fbc6d1aecadf945af5d64c75e2b7d089328d6f4fe6b5a4e5fe9ee5
SSDEEP

12288:RL17eTUsJIe0/doj/atWT6GjIVkkAJokfsmOODk2vtPNJZ7D9p5zuldXnXf3auHC:91yT16epXMEPfsmVDVv7DxAZquHPH9k

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-06-11_1a35f8c5e992c38426281dd99a386f3c_ryuk

Files

2024-06-11_1a35f8c5e992c38426281dd99a386f3c_ryuk
.exe windows:10 windows x64 arch:x64

cfbee138ce8d4e6b96a5e4abfcfe33dc

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:\srv\slave\workdir\repos\opera\chromium\src\out\Release\installer_helper\installer_helper.exe.pdb

Imports

shell32

SHBindToParent
SHParseDisplayName

user32

CreatePopupMenu
CreateWindowExW
DefWindowProcW
DestroyMenu
DestroyWindow
DispatchMessageW
GetMenuItemCount
GetMenuItemInfoW
GetMessageW
LoadCursorW
LoadStringW
PostMessageW
PostQuitMessage
RegisterClassW
SetTimer
TranslateMessage

kernel32

AcquireSRWLockExclusive
CloseHandle
CompareStringW
CreateFileW
CreateThread
DeleteCriticalSection
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExitThread
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetDateFormatW
GetEnvironmentStringsW
GetFileSizeEx
GetFileType
GetLastError
GetLocaleInfoW
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemInfo
GetSystemTimeAsFileTime
GetTimeFormatW
GetTimeZoneInformation
GetUserDefaultLCID
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LoadLibraryW
MultiByteToWideChar
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetEnvironmentVariableW
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryAcquireSRWLockExclusive
UnhandledExceptionFilter
VirtualAlloc
VirtualFree
VirtualProtect
VirtualQuery
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile
lstrlenA

ole32

CoInitialize
CoTaskMemFree
CoUninitialize

winmm

timeGetTime

Sections

.text
Size: 385KB - Virtual size: 384KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 107KB - Virtual size: 106KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 56KB - Virtual size: 84KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 17KB - Virtual size: 17KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

.tls
Size: 512B - Virtual size: 305B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

_RDATA
Size: 512B - Virtual size: 500B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 1024B - Virtual size: 848B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 568KB - Virtual size: 572KB

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

cfbee138ce8d4e6b96a5e4abfcfe33dc

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

shell32

user32

kernel32

ole32

winmm

Sections

.text Size: 385KB - Virtual size: 384KB

.rdata Size: 107KB - Virtual size: 106KB

.data Size: 56KB - Virtual size: 84KB

.pdata Size: 17KB - Virtual size: 17KB

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

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

.tls Size: 512B - Virtual size: 305B

_RDATA Size: 512B - Virtual size: 500B

.rsrc Size: 1024B - Virtual size: 848B

.reloc Size: 568KB - Virtual size: 572KB

.text
Size: 385KB - Virtual size: 384KB

.rdata
Size: 107KB - Virtual size: 106KB

.data
Size: 56KB - Virtual size: 84KB

.pdata
Size: 17KB - Virtual size: 17KB

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

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

.tls
Size: 512B - Virtual size: 305B

_RDATA
Size: 512B - Virtual size: 500B

.rsrc
Size: 1024B - Virtual size: 848B

.reloc
Size: 568KB - Virtual size: 572KB