2024-04-23_b3fbef441e569fdfba2d1c0ee1f70343_ryuk

Sharing

Copy URL

Twitter E-mail

General

Target

2024-04-23_b3fbef441e569fdfba2d1c0ee1f70343_ryuk
Size

139KB
MD5

b3fbef441e569fdfba2d1c0ee1f70343
SHA1

a2bb19879b4c62a5b7550b3ca23fbe9ba3fae5f4
SHA256

9bd7aa687d9145bfeb6c2144bba9bec80c714336609a194924cfe95a8a779d0a
SHA512

8f5490a666cc7fd68b9eb3f5188d51b21626ba7961bd1cd7c0a30fbd55aa16ba69143dec897223258ab557a38a1a8bf7aeb765e00146ec9f38fa9adc6ef88a3f
SSDEEP

3072:9tFm6qzyaPlA5RmcPR2ftAlZoWHlFuHudoVRz:zrqWAlGmCWg+WF4z

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-23_b3fbef441e569fdfba2d1c0ee1f70343_ryuk

Files

2024-04-23_b3fbef441e569fdfba2d1c0ee1f70343_ryuk
.exe windows:6 windows x64 arch:x64

d15dd689850a8bcb29f934a1e5422f2e

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

PDB Paths

c:\builds\moz2_slave\m-in-w64-000000000000000000000\build\src\obj-firefox\toolkit\mozapps\update\tests\TestAUSReadStrings.pdb

Imports

kernel32

WriteFile
CreateFileW
GetProcAddress
FreeLibrary
GetCurrentProcess
SetLastError
CloseHandle
HeapReAlloc
SetEndOfFile
HeapSize
WriteConsoleW
GetStringTypeW
SetStdHandle
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
RtlUnwindEx
GetModuleFileNameW
RtlPcToFileHeader
RaiseException
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
LoadLibraryExW
ReadFile
ExitProcess
GetModuleHandleExW
MultiByteToWideChar
WideCharToMultiByte
GetStdHandle
GetCommandLineA
GetCommandLineW
GetACP
HeapFree
HeapAlloc
CompareStringW
LCMapStringW
GetFileType
GetConsoleMode
ReadConsoleW
SetFilePointerEx
FlushFileBuffers
GetConsoleCP
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetOEMCP
GetCPInfo
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableW
GetProcessHeap
GetLastError

advapi32

SystemFunction036

Sections

.text
Size: 84KB - Virtual size: 84KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 42KB - Virtual size: 42KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 512B - Virtual size: 196B

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

Sharing

General

Malware Config

Signatures

Files

d15dd689850a8bcb29f934a1e5422f2e

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

advapi32

Sections

.text Size: 84KB - Virtual size: 84KB

.rdata Size: 42KB - Virtual size: 42KB

.data Size: 3KB - Virtual size: 7KB

.pdata Size: 5KB - Virtual size: 4KB

.gfids Size: 512B - Virtual size: 196B

.reloc Size: 2KB - Virtual size: 1KB

.text
Size: 84KB - Virtual size: 84KB

.rdata
Size: 42KB - Virtual size: 42KB

.data
Size: 3KB - Virtual size: 7KB

.pdata
Size: 5KB - Virtual size: 4KB

.gfids
Size: 512B - Virtual size: 196B

.reloc
Size: 2KB - Virtual size: 1KB