maintenanceservice.pdb
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-30_1083dd2a8c1b2e03a6852a7a111fc294_cobalt-strike_ryuk.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-30_1083dd2a8c1b2e03a6852a7a111fc294_cobalt-strike_ryuk
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Size
1.8MB
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MD5
1083dd2a8c1b2e03a6852a7a111fc294
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SHA1
4301c4eb351a8d3ee10c0277e924f38459f9d2c7
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SHA256
facc014e6a1d059170d60a6f611bd78ba2c5135f116969d1f5f2fe6dc49d0fa9
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SHA512
d5d2eb538a2029eca0c8efc7a2bef0e2079fa39e6a4282ff211e7cb9c08992619da8662b468e1a202f7bc7aec6d650e2e1a35c157de34c30e0e157aaf5515c96
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SSDEEP
24576:fXCO3cbtAfP+XwrVJ4uqhBSe32ZI/Rsf71y:N3c+EwrVOuWkJK6D1
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-09-30_1083dd2a8c1b2e03a6852a7a111fc294_cobalt-strike_ryuk
Files
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2024-09-30_1083dd2a8c1b2e03a6852a7a111fc294_cobalt-strike_ryuk.exe windows:10 windows x64 arch:x64
deac793c737c6715eac9d34cc38e44a1
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
advapi32
AdjustTokenPrivileges
ChangeServiceConfig2W
ChangeServiceConfigW
CloseServiceHandle
ControlService
CreateServiceW
CreateWellKnownSid
CryptAcquireContextA
CryptCreateHash
CryptDestroyHash
CryptGetHashParam
CryptHashData
CryptReleaseContext
DeleteService
FreeSid
GetSecurityDescriptorDacl
InitializeSecurityDescriptor
LookupPrivilegeValueA
OpenProcessToken
OpenSCManagerA
OpenSCManagerW
OpenServiceW
QueryServiceConfigW
QueryServiceObjectSecurity
QueryServiceStatus
QueryServiceStatusEx
RegCloseKey
RegEnumKeyExW
RegGetValueW
RegOpenKeyExW
RegQueryInfoKeyW
RegQueryValueExW
RegSetValueExW
RegisterServiceCtrlHandlerW
SetEntriesInAclW
SetSecurityDescriptorDacl
SetServiceObjectSecurity
SetServiceStatus
StartServiceCtrlDispatcherW
shlwapi
PathAppendW
PathCanonicalizeW
PathIsUNCServerShareW
PathQuoteSpacesW
PathRemoveFileSpecW
PathStripPathW
PathStripToRootW
PathUnquoteSpacesW
user32
LoadStringA
wsprintfW
version
GetFileVersionInfoSizeW
GetFileVersionInfoW
VerQueryValueW
rpcrt4
RpcStringFreeW
UuidCreate
UuidToStringW
shell32
SHGetKnownFolderPath
ole32
CoTaskMemFree
crypt32
CertCloseStore
CertFindCertificateInStore
CertFreeCertificateContext
CertGetNameStringA
CertGetNameStringW
CryptMsgClose
CryptMsgGetParam
CryptQueryObject
wintrust
WinVerifyTrust
kernel32
AcquireSRWLockExclusive
CloseHandle
CompareStringW
CopyFileW
CreateDirectoryW
CreateEventW
CreateFileW
CreateProcessW
CreateThread
CreateToolhelp32Snapshot
DeleteCriticalSection
DeleteFileW
DeviceIoControl
EncodePointer
EnterCriticalSection
ExitProcess
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetDateFormatW
GetDriveTypeW
GetEnvironmentStringsW
GetExitCodeProcess
GetFileAttributesW
GetFileSize
GetFileSizeEx
GetFileType
GetFullPathNameW
GetLastError
GetLongPathNameW
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemTimeAsFileTime
GetTimeFormatW
GetTimeZoneInformation
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
LCMapStringW
LeaveCriticalSection
LoadLibraryExW
LocalAlloc
LocalFree
MoveFileExW
MultiByteToWideChar
Process32FirstW
Process32NextW
QueryPerformanceCounter
RaiseException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetEndOfFile
SetEnvironmentVariableW
SetEvent
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
WaitForSingleObject
WakeAllConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile
lstrcmpiW
Sections
.text Size: 174KB - Virtual size: 174KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 59KB - Virtual size: 58KB
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: 56B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gxfg Size: 8KB - Virtual size: 7KB
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
_RDATA Size: 512B - Virtual size: 500B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 2KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 1.5MB - Virtual size: 2.5MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE