C:\dvs\p4\build\sw\rel\gfclient\rel_03_13_1\backend\build\bin\x64\Release\NvProfileUpdater64.pdb
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-13_956b58513cc3de058d8451115bb20afc_ryuk.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-13_956b58513cc3de058d8451115bb20afc_ryuk.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-13_956b58513cc3de058d8451115bb20afc_ryuk
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Size
1.2MB
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MD5
956b58513cc3de058d8451115bb20afc
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SHA1
77ac35fe24bbc233f44d784a2ad9308d2fc4baf0
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SHA256
aa6831c5b24e4e687de26bb9a6640c125c7692ce5ec8a967e4f3adb558b74cc0
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SHA512
2e874cfc9a0bacb0a9e92808dd73c92861d98f154bcd2434fa3f57ba7f5bdbe779c01f65190133c0762ce5d6567d782ba8208244f3f4dc4efcd88820941d0c72
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SSDEEP
24576:rxX3MOEQ7dS2o7OQTHfDmSsqjnhMgeiCl7G0nehbGZpbD:Z17k2o7hT/XDmg27RnWGj
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-03-13_956b58513cc3de058d8451115bb20afc_ryuk
Files
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2024-03-13_956b58513cc3de058d8451115bb20afc_ryuk.exe windows:6 windows x64 arch:x64
edfdf842c8b88d0648ec00007b309297
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
Imports
shlwapi
PathCombineW
kernel32
GetExitCodeProcess
InitializeCriticalSection
EnterCriticalSection
LoadLibraryW
DeleteCriticalSection
Sleep
WaitForSingleObject
CreateDirectoryW
HeapSize
WriteConsoleW
LoadLibraryExW
VerifyVersionInfoW
FreeLibrary
GetModuleHandleW
CreateProcessW
VerSetConditionMask
LocalFree
GetProcAddress
CloseHandle
OutputDebugStringW
GetLastError
GetSystemDirectoryW
lstrcmpA
GetFileAttributesW
CreateFileW
LocalAlloc
GetFullPathNameW
SetLastError
LeaveCriticalSection
MultiByteToWideChar
WideCharToMultiByte
SetEnvironmentVariableW
DeleteFileW
GetFileAttributesExW
RemoveDirectoryW
GetCurrentProcess
GetModuleHandleExW
GetFileInformationByHandle
ReadFile
SetEndOfFile
SetFilePointerEx
WriteFile
GetCurrentThreadId
FindClose
FindFirstFileW
FindNextFileW
FileTimeToLocalFileTime
GetSystemTimeAsFileTime
GetVersionExW
GetNativeSystemInfo
FileTimeToSystemTime
SetEvent
ResetEvent
CreateEventW
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
IsDebuggerPresent
GetStartupInfoW
QueryPerformanceCounter
GetCurrentProcessId
InitializeSListHead
GetStringTypeW
EncodePointer
DecodePointer
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
CompareStringW
LCMapStringW
GetLocaleInfoW
GetCPInfo
RtlPcToFileHeader
RaiseException
RtlUnwindEx
MoveFileExW
ExitProcess
GetModuleFileNameA
GetStdHandle
GetACP
HeapAlloc
HeapReAlloc
HeapFree
GetFileType
FlushFileBuffers
GetConsoleCP
GetConsoleMode
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
ReadConsoleW
FindFirstFileExA
FindNextFileA
IsValidCodePage
GetOEMCP
GetCommandLineA
GetCommandLineW
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetProcessHeap
SetStdHandle
WaitForSingleObjectEx
winhttp
WinHttpQueryHeaders
WinHttpReceiveResponse
WinHttpAddRequestHeaders
WinHttpOpenRequest
WinHttpSetOption
WinHttpQueryOption
WinHttpQueryDataAvailable
WinHttpSendRequest
WinHttpConnect
WinHttpCloseHandle
WinHttpOpen
WinHttpCrackUrl
WinHttpSetStatusCallback
WinHttpReadData
ws2_32
ntohl
inet_ntoa
advapi32
RegCloseKey
RegOpenKeyExW
RegQueryValueExW
CryptAcquireContextW
CryptReleaseContext
CryptGetHashParam
CryptCreateHash
CryptHashData
CryptDestroyHash
shell32
SHGetFolderPathW
Sections
.text Size: 302KB - Virtual size: 302KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 155KB - Virtual size: 154KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 6KB - Virtual size: 26KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 15KB - Virtual size: 14KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.tls Size: 512B - Virtual size: 9B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 147KB - Virtual size: 146KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 572KB - Virtual size: 576KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE