authz[.]dll | Triage

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General

Target

authz.dll
Size

183KB
MD5

8618e9e8ec2f96fc23d7a40032950c5b
SHA1

19d31872732554c9ca28aefdc815c311313a0fb9
SHA256

21286678f018a294e6645545c28f3af656580d6be6bd544d2ec0ec4b8b52064a
SHA512

c64f56232179f78fb7acbd46e9a7895980b8d61d52f54d6518b581da2d80f2aca6b2ceabd18f9c7d0fecf65fb9217d6ce221dd324b7b8c6d3348f4d5fbd1a6e0
SSDEEP

3072:PmafxL7cuvzj7KXmOIG6nMHWnuHbENrPKp4cXIQbOIsPUM26/5DrZ3ZKoYH0:+afxL7cuvzCXm7LCSu7RGc4QHs8K3ZKs

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
authz.dll

Files

authz.dll
.dll windows:10 windows x86 arch:x86

30af251998e306babd47fe3502291003

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

PDB Paths

authz.pdb

Imports

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

memset
wcsncmp

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

_initterm
_initterm_e

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

_o__callnewh
_o__cexit
_o__configure_narrow_argv
_o__execute_onexit_table
_o__initialize_narrow_environment
_o__initialize_onexit_table
_o__seh_filter_dll
memcpy
_o__wcsicmp
_o__wcsnicmp
_o__wtoi
_o__wtoi64
_o_free
_o_malloc
_o_wcstol
_except_handler4_common
_o___std_type_info_destroy_list
_o___stdio_common_vswprintf
wcsstr
memcmp

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

SetLastError
GetLastError
SetUnhandledExceptionFilter
UnhandledExceptionFilter

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

Sleep
InitOnceExecuteOnce

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

LocalFree
LocalAlloc

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

LeaveCriticalSection
DeleteCriticalSection
ResetEvent
SetEvent
InitializeCriticalSection
WaitForSingleObject
EnterCriticalSection
CreateEventW

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

GetCurrentThread
GetCurrentProcessId
GetCurrentThreadId
OpenThreadToken
CreateThread
SetThreadStackGuarantee
GetCurrentProcess
SetThreadPriority
OpenProcessToken
TerminateProcess

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

AddAccessAllowedAce
InitializeAcl
GetSidSubAuthority
IsWellKnownSid
GetSecurityDescriptorLength
SetSecurityDescriptorSacl
GetSecurityDescriptorSacl
SetSecurityDescriptorDacl
GetSecurityDescriptorDacl
CreateWellKnownSid
EqualDomainSid
AllocateAndInitializeSid
IsValidSid
IsValidSecurityDescriptor
InitializeSid
AdjustTokenPrivileges
GetTokenInformation
GetLengthSid
GetSecurityDescriptorControl
InitializeSecurityDescriptor
GetSecurityDescriptorOwner
SetSecurityDescriptorOwner
GetSecurityDescriptorGroup
SetSecurityDescriptorGroup
GetSidSubAuthorityCount

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

CloseHandle

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

DisableThreadLibraryCalls

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

RegEnumKeyExW
RegCloseKey
RegSetValueExW
RegQueryInfoKeyW
RegOpenKeyExW
RegQueryValueExA
RegOpenKeyExA
RegQueryValueExW
RegDeleteKeyExW
RegEnumValueW
RegDeleteValueW
RegCreateKeyExW

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

GetSystemTimeAsFileTime
GetComputerNameExW
GetSystemInfo

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

RtlCompareMemory

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

GetOsSafeBootMode

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

VirtualAlloc
VirtualFree
VirtualQuery
VirtualProtect

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

IsDebuggerPresent

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

IsProcessorFeaturePresent

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

QueryPerformanceCounter

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

InitializeSListHead

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

ApiSetQueryApiSetPresence

ntdll

RtlDeleteCriticalSection
RtlSubscribeWnfStateChangeNotification
RtlUnsubscribeWnfNotificationWaitForCompletion
RtlInitializeResource
RtlDeleteResource
RtlAcquireResourceShared
RtlEqualSid
RtlValidSecurityDescriptor
RtlOwnerAcesPresent
RtlLengthSecurityDescriptor
RtlMakeSelfRelativeSD
RtlInitUnicodeString
NtOpenKey
NtQueryValueKey
RtlSidHashInitialize
RtlLengthRequiredSid
RtlIsPackageSid
RtlIsCapabilitySid
RtlCopySid
RtlValidSid
RtlValidRelativeSecurityDescriptor
RtlCopyLuid
RtlCopyLuidAndAttributesArray
RtlSubAuthorityCountSid
RtlSubAuthoritySid
RtlInitString
RtlGetNtProductType
EtwTraceMessage
RtlNtStatusToDosErrorNoTeb
RtlAllocateHeap
RtlImageNtHeader
RtlFreeHeap
RtlEqualUnicodeString
RtlCopyUnicodeString
RtlCompareUnicodeString
RtlUpcaseUnicodeChar
RtlIsNameInExpression
RtlInitializeCriticalSection
NtQuerySecurityAttributesToken
NtQueryInformationToken
RtlReleaseResource
RtlAcquireResourceExclusive
EtwUnregisterTraceGuids
EtwRegisterTraceGuidsW
EtwGetTraceEnableFlags
EtwGetTraceEnableLevel
EtwGetTraceLoggerHandle
RtlLengthSid
RtlLeaveCriticalSection
RtlEnterCriticalSection
RtlInitializeSid
RtlNtStatusToDosError
NtAllocateLocallyUniqueId
NtClose

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

ResolveDelayLoadedAPI

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

DelayLoadFailureHook

Exports

Exports

AuthzAccessCheck
AuthzAddSidsToContext
AuthzCachedAccessCheck
AuthzComputeEffectivePermission
AuthzEnumerateSecurityEventSources
AuthzEvaluateSacl
AuthzFreeAuditEvent
AuthzFreeCentralAccessPolicyCache
AuthzFreeContext
AuthzFreeHandle
AuthzFreeResourceManager
AuthzGetInformationFromContext
AuthzInitializeCompoundContext
AuthzInitializeContextFromAuthzContext
AuthzInitializeContextFromSid
AuthzInitializeContextFromToken
AuthzInitializeObjectAccessAuditEvent
AuthzInitializeObjectAccessAuditEvent2
AuthzInitializeRemoteAccessCheck
AuthzInitializeRemoteResourceManager
AuthzInitializeResourceManager
AuthzInitializeResourceManagerEx
AuthzInstallSecurityEventSource
AuthzModifyClaims
AuthzModifySecurityAttributes
AuthzModifySids
AuthzOpenObjectAudit
AuthzRegisterCapChangeNotification
AuthzRegisterSecurityEventSource
AuthzReportSecurityEvent
AuthzReportSecurityEventFromParams
AuthzSetAppContainerInformation
AuthzShutdownRemoteAccessCheck
AuthzUninstallSecurityEventSource
AuthzUnregisterCapChangeNotification
AuthzUnregisterSecurityEventSource
AuthziAccessCheckEx
AuthziAllocateAuditParams
AuthziCheckContextMembership
AuthziFreeAuditEventType
AuthziFreeAuditParams
AuthziFreeAuditQueue
AuthziGenerateAdminAlertAuditW
AuthziInitializeAuditEvent
AuthziInitializeAuditEventType
AuthziInitializeAuditParams
AuthziInitializeAuditParamsFromArray
AuthziInitializeAuditParamsWithRM
AuthziInitializeAuditQueue
AuthziInitializeContextFromSid
AuthziLogAuditEvent
AuthziModifyAuditEvent
AuthziModifyAuditEvent2
AuthziModifyAuditEventType
AuthziModifyAuditQueue
AuthziModifySecurityAttributes
AuthziQuerySecurityAttributes
AuthziSourceAudit
FreeClaimDefinitions
FreeClaimDictionary
GenerateNewCAPID
GetCentralAccessPoliciesByCapID
GetCentralAccessPoliciesByDN
GetClaimDefinitions
GetClaimDomainInfo
GetDefaultCAPESecurityDescriptor
InitializeClaimDictionary
RefreshClaimDictionary

Sections

.text
Size: 167KB - Virtual size: 167KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.didat
Size: 512B - Virtual size: 376B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 1024B - Virtual size: 1016B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 6KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

30af251998e306babd47fe3502291003

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

ntdll

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

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

Exports

Exports

Sections

.text Size: 167KB - Virtual size: 167KB

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

.idata Size: 6KB - Virtual size: 6KB

.didat Size: 512B - Virtual size: 376B

.rsrc Size: 1024B - Virtual size: 1016B

.reloc Size: 6KB - Virtual size: 5KB

.text
Size: 167KB - Virtual size: 167KB

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

.idata
Size: 6KB - Virtual size: 6KB

.didat
Size: 512B - Virtual size: 376B

.rsrc
Size: 1024B - Virtual size: 1016B

.reloc
Size: 6KB - Virtual size: 5KB