z:\task_1579288126\build\src\obj-firefox\toolkit\components\maintenanceservice\maintenanceservice.pdb
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-13_fe15f2634c6a4d0b067a1c864542f0d8_ryuk.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-02-13_fe15f2634c6a4d0b067a1c864542f0d8_ryuk.exe
Resource
win10v2004-20231222-en
General
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Target
2024-02-13_fe15f2634c6a4d0b067a1c864542f0d8_ryuk
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Size
1.5MB
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MD5
fe15f2634c6a4d0b067a1c864542f0d8
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SHA1
f2146b05ec00e0fbead32dfe8c61959f725c8733
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SHA256
d22c492862d17729b19dc00cae5b5120cf1a21f20316fb7440b09d9507995687
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SHA512
6b15b987cd1343eefa8a9c7a35f592e5ccd86070fb03363e5bbfe2f076db4d314fccad3861bf5847f66af8b0c9cc62237ce83a7e7510dc03c7b073efe7adf30e
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SSDEEP
24576:CANw243FVqIi2lObXobHAEW9INFJY0au:Cew2Uw7x03jY0a
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-02-13_fe15f2634c6a4d0b067a1c864542f0d8_ryuk
Files
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2024-02-13_fe15f2634c6a4d0b067a1c864542f0d8_ryuk.exe windows:6 windows x64 arch:x64
33d31a4df5121c8c368d8b7a65733fa3
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
user32
LoadStringA
wsprintfW
advapi32
AdjustTokenPrivileges
AllocateAndInitializeSid
BuildExplicitAccessWithNameW
ChangeServiceConfig2W
ChangeServiceConfigW
CloseServiceHandle
ControlService
CreateServiceW
CreateWellKnownSid
CryptAcquireContextA
CryptCreateHash
CryptDestroyHash
CryptGetHashParam
CryptHashData
CryptReleaseContext
DeleteService
FreeSid
GetEffectiveRightsFromAclW
GetSecurityDescriptorDacl
GetSecurityInfo
InitializeSecurityDescriptor
LookupAccountSidW
LookupPrivilegeValueA
OpenProcessToken
OpenSCManagerA
OpenSCManagerW
OpenServiceW
QueryServiceConfigW
QueryServiceObjectSecurity
QueryServiceStatus
QueryServiceStatusEx
RegCloseKey
RegEnumKeyExW
RegGetValueW
RegOpenKeyExW
RegQueryInfoKeyW
RegQueryValueExW
RegSetValueExW
RegisterServiceCtrlHandlerW
SetEntriesInAclW
SetSecurityDescriptorDacl
SetSecurityInfo
SetServiceObjectSecurity
SetServiceStatus
StartServiceCtrlDispatcherW
crypt32
CertCloseStore
CertFindCertificateInStore
CertFreeCertificateContext
CertGetNameStringA
CertGetNameStringW
CryptMsgClose
CryptMsgGetParam
CryptQueryObject
ole32
CoTaskMemFree
rpcrt4
RpcStringFreeW
UuidCreate
UuidToStringW
shell32
SHFileOperationW
SHGetKnownFolderPath
wintrust
WinVerifyTrust
shlwapi
PathAppendW
PathCanonicalizeW
PathIsUNCServerShareW
PathQuoteSpacesW
PathRemoveFileSpecW
PathStripPathW
PathStripToRootW
PathUnquoteSpacesW
version
GetFileVersionInfoSizeW
GetFileVersionInfoW
VerQueryValueW
kernel32
CloseHandle
CompareStringW
CopyFileW
CreateDirectoryW
CreateEventW
CreateFileW
CreateProcessW
CreateThread
CreateToolhelp32Snapshot
DeleteCriticalSection
DeleteFileW
DeviceIoControl
EncodePointer
EnterCriticalSection
ExitProcess
FindClose
FindFirstFileExW
FindFirstFileW
FindNextFileW
FlushFileBuffers
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleCP
GetConsoleMode
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetDriveTypeW
GetEnvironmentStringsW
GetExitCodeProcess
GetFileAttributesW
GetFileInformationByHandle
GetFileSize
GetFileType
GetFullPathNameW
GetLastError
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemTimeAsFileTime
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
LCMapStringW
LeaveCriticalSection
LoadLibraryExW
LocalAlloc
LocalFree
MoveFileExW
MoveFileW
MultiByteToWideChar
Process32FirstW
Process32NextW
QueryPerformanceCounter
RaiseException
ReadConsoleW
ReadFile
ResetEvent
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetEndOfFile
SetEnvironmentVariableW
SetEvent
SetFileAttributesW
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
Sleep
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
WaitForSingleObject
WaitForSingleObjectEx
WideCharToMultiByte
WriteConsoleW
WriteFile
lstrcmpiW
Sections
.text Size: 157KB - Virtual size: 156KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 57KB - Virtual size: 56KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 3KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 7KB - Virtual size: 6KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.00cfg Size: 512B - Virtual size: 16B
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: 2KB - 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