lsass[.]exe | Triage

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General

Target

lsass.exe
Size

59KB
MD5

289d6a47b7692510e2fd3b51979a9fed
SHA1

1754e7ee417e56c9c196b1dc7fbf663a43d15d16
SHA256

0777fd312394ae1afeed0ad48ae2d7b5ed6e577117a4f40305eaeb4129233650
SHA512

d4bfbf3b50a141f71cafa90447f0c67eec8082a84fdfcadda9a2b6a6c9085b894471bbe6f538a74b441c12fc2c04713e4ae8c00db653a312cfc55b770d85e030
SSDEEP

1536:4+IDW1k2ACCJk3TbA3+eL/r7z1wulCTPJjzE5:XIC1k2An3NL/8TRjI5

Score

1^/10

Malware Config

Signatures

Files

lsass.exe
.exe windows x64

3924d1606f44d90586a3ec75785c2730

Code Sign

33:00:00:03:6c:e5:7e:eb:5d:1c:c2:be:17:00:00:00:00:03:6c
Certificate

Issuer

CN=Microsoft Windows Production PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

27/01/2022, 19:31

Not After

26/01/2023, 19:31

Subject

CN=Microsoft Windows Publisher,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

61:07:76:56:00:00:00:00:00:08
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

19/10/2011, 18:41

Not After

19/10/2026, 18:51

Subject

CN=Microsoft Windows Production PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

cb:f9:7d:d9:88:f5:92:8b:11:f4:6c:e0:09:a2:b4:2d:4d:39:e2:d6:7d:7c:0a:9e:5b:32:89:57:75:9e:bf:04
Signer

Actual PE Digest

cb:f9:7d:d9:88:f5:92:8b:11:f4:6c:e0:09:a2:b4:2d:4d:39:e2:d6:7d:7c:0a:9e:5b:32:89:57:75:9e:bf:04

Digest Algorithm

sha256

PE Digest Matches

true

Signature Validations

Trusted

false

Verification

Signing Certificate

CN=Microsoft Windows Publisher,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

13/04/2023, 18:14
Valid: false

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

api-ms-win-core-crt-l1-1-0

wcschr
_wcsicmp
wcstol
_vsnprintf_s
strcpy_s
memcpy
memset

api-ms-win-core-crt-l2-1-0

_initterm_e
exit
_initterm

ntdll

NtSetInformationThread
RtlReleaseResource
NtFreeVirtualMemory
NtConnectPort
NtRequestWaitReplyPort
RtlLeaveCriticalSection
NtAllocateVirtualMemory
NtClose
NtAcceptConnectPort
NtReplyWaitReceivePort
RtlCaptureContext
RtlLookupFunctionEntry
NtCompleteConnectPort
RtlVirtualUnwind
RtlSetDaclSecurityDescriptor
NtCreatePort
RtlSetOwnerSecurityDescriptor
NtDeviceIoControlFile
RtlFreeHeap
RtlSetProcessIsCritical
RtlFreeSid
RtlDeriveCapabilitySidsFromName
RtlAddMandatoryAce
RtlUnhandledExceptionFilter
RtlLengthRequiredSid
RtlCreateAndSetSD
NtSetSecurityObject
NtOpenEvent
RtlSubAuthoritySid
RtlAllocateHeap
NtSetInformationProcess
RtlCreateAcl
RtlInitializeSid
RtlEnterCriticalSection
RtlNtStatusToDosError
RtlAcquireResourceExclusive
RtlCreateSecurityDescriptor
NtOpenFile
RtlAcquireResourceShared
DbgPrintEx
RtlInitializeResource
NtListenPort
RtlSetSaclSecurityDescriptor
RtlAddAccessAllowedAce
RtlLengthSid
RtlAllocateAndInitializeSid
NtSetInformationFile
RtlInitUnicodeString
RtlMakeSelfRelativeSD

rpcrt4

RpcServerUseProtseqEpW
RpcServerRegisterIf3
RpcServerListen
NdrServerCallAll
NdrServerCall2
I_RpcMapWin32Status

api-ms-win-core-errorhandling-l1-1-0

SetUnhandledExceptionFilter
GetLastError
SetErrorMode
SetLastError
UnhandledExceptionFilter

api-ms-win-core-handle-l1-1-0

DuplicateHandle
CloseHandle

api-ms-win-core-io-l1-1-0

DeviceIoControl

api-ms-win-core-libraryloader-l1-2-0

GetProcAddress
LoadLibraryExW

api-ms-win-core-registry-l1-1-0

RegOpenKeyExW
RegCloseKey
RegQueryValueExW
RegEnumKeyExW

api-ms-win-core-heap-obsolete-l1-1-0

LocalFree
LocalAlloc

api-ms-win-security-base-l1-1-0

GetTokenInformation

api-ms-win-core-processthreads-l1-1-0

ExitThread
OpenProcessToken
TlsSetValue
TlsAlloc
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
TerminateProcess
CreateThread
TlsGetValue

api-ms-win-core-processenvironment-l1-1-0

SetEnvironmentVariableW
GetEnvironmentVariableW

api-ms-win-core-synch-l1-1-0

SetEvent
CreateEventW
OpenEventW

api-ms-win-core-threadpool-l1-2-0

CreateThreadpoolIo
CreateThreadpool
StartThreadpoolIo
CancelThreadpoolIo
TrySubmitThreadpoolCallback
SetThreadpoolThreadMaximum

api-ms-win-core-synch-l1-2-0

Sleep

api-ms-win-core-sysinfo-l1-1-0

GetSystemInfo
GetSystemTimeAsFileTime
GetTickCount

api-ms-win-core-profile-l1-1-0

QueryPerformanceCounter

api-ms-win-core-windowserrorreporting-l1-1-0

WerSetFlags

api-ms-win-core-delayload-l1-1-0

DelayLoadFailureHook

api-ms-win-core-delayload-l1-1-1

ResolveDelayLoadedAPI

Exports

Exports

LsaGetInterface
LsaImpersonateKsecCaller
LsaRegisterExtension
LsaRegisterInterface

Sections

.text
Size: 20KB - Virtual size: 20KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 22KB - Virtual size: 21KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.didat
Size: 512B - Virtual size: 48B

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: 512B - Virtual size: 512B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

3924d1606f44d90586a3ec75785c2730

Code Sign

33:00:00:03:6c:e5:7e:eb:5d:1c:c2:be:17:00:00:00:00:03:6cCertificate

Extended Key Usages

61:07:76:56:00:00:00:00:00:08Certificate

Key Usages

cb:f9:7d:d9:88:f5:92:8b:11:f4:6c:e0:09:a2:b4:2d:4d:39:e2:d6:7d:7c:0a:9e:5b:32:89:57:75:9e:bf:04Signer

Signature Validations

Verification

13/04/2023, 18:14 Valid: false

Headers

DLL Characteristics

File Characteristics

Imports

api-ms-win-core-crt-l1-1-0

api-ms-win-core-crt-l2-1-0

ntdll

rpcrt4

api-ms-win-core-errorhandling-l1-1-0

api-ms-win-core-handle-l1-1-0

api-ms-win-core-io-l1-1-0

api-ms-win-core-libraryloader-l1-2-0

api-ms-win-core-registry-l1-1-0

api-ms-win-core-heap-obsolete-l1-1-0

api-ms-win-security-base-l1-1-0

api-ms-win-core-processthreads-l1-1-0

api-ms-win-core-processenvironment-l1-1-0

api-ms-win-core-synch-l1-1-0

api-ms-win-core-threadpool-l1-2-0

api-ms-win-core-synch-l1-2-0

api-ms-win-core-sysinfo-l1-1-0

api-ms-win-core-profile-l1-1-0

api-ms-win-core-windowserrorreporting-l1-1-0

api-ms-win-core-delayload-l1-1-0

api-ms-win-core-delayload-l1-1-1

Exports

Exports

Sections

.text Size: 20KB - Virtual size: 20KB

.rdata Size: 22KB - Virtual size: 21KB

.data Size: 512B - Virtual size: 2KB

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

.didat Size: 512B - Virtual size: 48B

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

.reloc Size: 512B - Virtual size: 512B

33:00:00:03:6c:e5:7e:eb:5d:1c:c2:be:17:00:00:00:00:03:6c
Certificate

61:07:76:56:00:00:00:00:00:08
Certificate

cb:f9:7d:d9:88:f5:92:8b:11:f4:6c:e0:09:a2:b4:2d:4d:39:e2:d6:7d:7c:0a:9e:5b:32:89:57:75:9e:bf:04
Signer

13/04/2023, 18:14
Valid: false

.text
Size: 20KB - Virtual size: 20KB

.rdata
Size: 22KB - Virtual size: 21KB

.data
Size: 512B - Virtual size: 2KB

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

.didat
Size: 512B - Virtual size: 48B

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

.reloc
Size: 512B - Virtual size: 512B