2024-05-07_988c12707dcf0b59c8747c751f7695f5_ryuk

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General

Target

2024-05-07_988c12707dcf0b59c8747c751f7695f5_ryuk
Size

1.4MB
MD5

988c12707dcf0b59c8747c751f7695f5
SHA1

acb8b495073ea7dcf425c4d696be249762d8c77d
SHA256

456256fe0b6db88210a86a13e65d7217bec56214044212a2f1be0867dfdc1400
SHA512

d783d682250c6cfb50fbbba05064e607b75cf80c28efbb7a7f3a52721c38f2b8e7257f5f6a75857c70e650953ff6476733507191627f075b1f4bda5cee355e72
SSDEEP

24576:l2vbtW6LaRFdGJm0Q3WKVSwdr13Ek0VA:gvbtW6KFdi2Ga9x3Ek0V

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-05-07_988c12707dcf0b59c8747c751f7695f5_ryuk

Files

2024-05-07_988c12707dcf0b59c8747c751f7695f5_ryuk
.exe windows:6 windows x64 arch:x64

db2e193b264b69b810bac1a36bf59e46

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

E:\SP-PLSUP0-BIT\src\LenovoSystemUpdatePlugin\bin\x64\Release\IA\local\collect\firmware.pdb

Imports

kernel32

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

oleaut32

SysFreeString
SysAllocString
VariantClear

kehelper

GetNextSmEntry

xmlwriter

?WriteSTR@XmlWriter@@QEAAXPEBDPEBG@Z
?EndRow@XmlWriter@@QEAAXXZ
?StartRow@XmlWriter@@QEAAXPEBD@Z
?EndSection@XmlWriter@@QEAAXXZ
?EndRoot@XmlWriter@@QEAAXXZ
?Flush@XmlWriter@@QEAAXXZ
?Close@XmlWriter@@QEAAXXZ
??0XmlWriter@@QEAA@XZ
?EndTable@XmlWriter@@QEAAXXZ
?StartRow@XmlWriter@@QEAAXPEBG@Z
?WriteCols@XmlWriter@@QEAAXH@Z
?StartTable@XmlWriter@@QEAAXPEBD@Z
?StartSection@XmlWriter@@QEAAXPEBD@Z
?Open@XmlWriter@@QEAA_NPEBD@Z
??1XmlWriter@@UEAA@XZ

setupapi

SetupDiEnumDeviceInfo
SetupDiGetDeviceRegistryPropertyW
SetupDiGetClassDevsW
SetupDiGetDevicePropertyW
CM_Get_Device_IDW

Exports

Exports

??0XmlWriter@@QEAA@AEBV0@@Z
??4XmlWriter@@QEAAAEAV0@AEBV0@@Z
??_7XmlWriter@@6B@
Execute
Initialize

Sections

.text
Size: 85KB - Virtual size: 85KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 43KB - Virtual size: 43KB

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: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 512B - Virtual size: 224B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 1.3MB - Virtual size: 1.3MB

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

db2e193b264b69b810bac1a36bf59e46

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

oleaut32

kehelper

xmlwriter

setupapi

Exports

Exports

Sections

.text Size: 85KB - Virtual size: 85KB

.rdata Size: 43KB - Virtual size: 43KB

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

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

.gfids Size: 512B - Virtual size: 224B

.rsrc Size: 1KB - Virtual size: 1KB

.reloc Size: 1.3MB - Virtual size: 1.3MB

.text
Size: 85KB - Virtual size: 85KB

.rdata
Size: 43KB - Virtual size: 43KB

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

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

.gfids
Size: 512B - Virtual size: 224B

.rsrc
Size: 1KB - Virtual size: 1KB

.reloc
Size: 1.3MB - Virtual size: 1.3MB