accesschk64[.]exe

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General

Target

accesschk64.exe
Size

791KB
MD5

9b59ee28638232e7ec1e5b3224090a0d
SHA1

6f2cb4f47dd6deb00b1398e7510887b48e19bdc4
SHA256

843b6b1d275946f2c4569169c10c50eec0968c4b2f0bed68c50e79f828fab9f3
SHA512

d97a399bf315af77b8af9516cd61eb21df369f0941be13caaf697e265ef453a60fa0f5e953ee70971f6141b4fed4d0fed16819a239888c5a32ba3e171227a693
SSDEEP

12288:UpR0BJcx0Ll+EPBt6IO+gWQG2uhK+49W5fti7:E6qGLl+GO+0WK+H5fti7

Score

1^/10

Malware Config

Signatures

Files

accesschk64.exe
.exe windows:6 windows x64

50c713ecffe5898d7426bcde54e77034

Code Sign

33:00:00:02:52:8b:33:aa:f8:95:f3:39:db:00:00:00:00:02:52
Certificate

Issuer

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

02/09/2021, 18:32

Not After

01/09/2022, 18:32

Subject

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

Extended Key Usages

ExtKeyUsageCodeSigning

61:0e:90:d2:00:00:00:00:00:03
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

08/07/2011, 20:59

Not After

08/07/2026, 21:09

Subject

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

70:55:e2:59:20:4d:99:a6:6b:08:7b:76:30:45:f8:45:f4:83:f7:07:d2:68:5f:0f:0b:ec:e3:8f:11:10:30:ac
Signer

Actual PE Digest

70:55:e2:59:20:4d:99:a6:6b:08:7b:76:30:45:f8:45:f4:83:f7:07:d2:68:5f:0f:0b:ec:e3:8f:11:10:30:ac

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

netapi32

NetShareEnum
NetShareGetInfo
NetApiBufferFree
NetUserGetLocalGroups

version

GetFileVersionInfoSizeW
GetFileVersionInfoW
VerQueryValueW

kernel32

SetFilePointerEx
ReadFile
HeapReAlloc
FindFirstFileExW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
MultiByteToWideChar
GetEnvironmentStringsW
Thread32Next
Thread32First
OpenThread
GetFileAttributesW
FindNextFileW
FindFirstFileW
FindClose
GetProcessHeap
HeapAlloc
FindResourceW
SizeofResource
LockResource
LoadResource
CreateFileW
Process32NextW
Process32FirstW
CreateToolhelp32Snapshot
VerifyVersionInfoW
FormatMessageW
LoadLibraryW
OpenProcess
GetCurrentThread
GetCurrentProcess
GetLastError
CloseHandle
GetFullPathNameW
RtlUnwind
GetCurrentDirectoryW
ExpandEnvironmentStringsW
VerSetConditionMask
GetModuleFileNameW
LocalFree
LocalAlloc
GetProcAddress
GetModuleHandleW
GetFileType
GetCommandLineW
GetStdHandle
LoadLibraryExW
GetVersionExW
SetLastError
FreeEnvironmentStringsW
SetEnvironmentVariableW
SetConsoleCtrlHandler
OutputDebugStringW
GetStringTypeW
HeapSize
WriteConsoleW
SetEndOfFile
GetFileSizeEx
GetConsoleOutputCP
FlushFileBuffers
ReadConsoleW
PeekConsoleInputA
ReadConsoleInputW
GetNumberOfConsoleInputEvents
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
IsDebuggerPresent
GetStartupInfoW
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
RtlPcToFileHeader
RaiseException
RtlUnwindEx
InterlockedPushEntrySList
InterlockedFlushSList
EncodePointer
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
ExitProcess
GetModuleHandleExW
GetConsoleCP
SetStdHandle
WriteFile
GetCommandLineA
HeapFree
GetDateFormatW
GetTimeFormatW
CompareStringW
LCMapStringW
GetLocaleInfoW
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
WideCharToMultiByte
GetConsoleMode
SetConsoleMode

user32

SendMessageW
LoadCursorW
InflateRect
GetSysColorBrush
SetCursor
SetWindowTextW
GetDlgItem
EndDialog
DialogBoxIndirectParamW

gdi32

GetDeviceCaps
SetMapMode
StartDocW
EndDoc
StartPage
EndPage

comdlg32

PrintDlgW

advapi32

GetEffectiveRightsFromAclW
QueryServiceObjectSecurity
OpenServiceW
OpenSCManagerW
EnumServicesStatusW
CloseServiceHandle
GetSecurityInfo
DeleteAce
RegGetKeySecurity
RegEnumKeyW
GetNamedSecurityInfoW
ConvertStringSecurityDescriptorToSecurityDescriptorW
RegDeleteKeyW
GetKernelObjectSecurity
LsaNtStatusToWinError
LsaEnumerateAccountRights
LsaEnumerateAccountsWithUserRight
LsaOpenPolicy
LsaClose
LsaFreeMemory
LookupPrivilegeDisplayNameW
LookupPrivilegeNameW
ConvertSecurityDescriptorToStringSecurityDescriptorW
SetEntriesInAclW
LookupPrivilegeValueW
LookupAccountNameW
LookupAccountSidW
SetSecurityDescriptorOwner
SetSecurityDescriptorDacl
RevertToSelf
IsWellKnownSid
IsValidSid
InitializeSecurityDescriptor
ImpersonateLoggedOnUser
GetTokenInformation
GetSidSubAuthorityCount
GetSidSubAuthority
GetSidIdentifierAuthority
GetSecurityDescriptorSacl
GetSecurityDescriptorOwner
GetSecurityDescriptorDacl
GetSecurityDescriptorControl
GetLengthSid
GetAce
EqualSid
DuplicateTokenEx
CopySid
AllocateAndInitializeSid
AdjustTokenPrivileges
OpenThreadToken
OpenProcessToken
RegSetValueExW
RegQueryValueExW
RegOpenKeyExW
RegOpenKeyW
RegCreateKeyW
RegCloseKey

wevtapi

EvtOpenChannelEnum
EvtNextChannelPath
EvtOpenChannelConfig
EvtGetChannelConfigProperty
EvtClose

Sections

.text
Size: 461KB - Virtual size: 460KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 132KB - Virtual size: 131KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 139KB - Virtual size: 146KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 25KB - Virtual size: 24KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 252B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 20KB - Virtual size: 19KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 2KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

50c713ecffe5898d7426bcde54e77034

Code Sign

33:00:00:02:52:8b:33:aa:f8:95:f3:39:db:00:00:00:00:02:52Certificate

Extended Key Usages

61:0e:90:d2:00:00:00:00:00:03Certificate

Key Usages

70:55:e2:59:20:4d:99:a6:6b:08:7b:76:30:45:f8:45:f4:83:f7:07:d2:68:5f:0f:0b:ec:e3:8f:11:10:30:acSigner

Headers

DLL Characteristics

File Characteristics

Imports

netapi32

version

kernel32

user32

gdi32

comdlg32

advapi32

wevtapi

Sections

.text Size: 461KB - Virtual size: 460KB

.rdata Size: 132KB - Virtual size: 131KB

.data Size: 139KB - Virtual size: 146KB

.pdata Size: 25KB - Virtual size: 24KB

_RDATA Size: 512B - Virtual size: 252B

.rsrc Size: 20KB - Virtual size: 19KB

.reloc Size: 2KB - Virtual size: 2KB

33:00:00:02:52:8b:33:aa:f8:95:f3:39:db:00:00:00:00:02:52
Certificate

61:0e:90:d2:00:00:00:00:00:03
Certificate

70:55:e2:59:20:4d:99:a6:6b:08:7b:76:30:45:f8:45:f4:83:f7:07:d2:68:5f:0f:0b:ec:e3:8f:11:10:30:ac
Signer

.text
Size: 461KB - Virtual size: 460KB

.rdata
Size: 132KB - Virtual size: 131KB

.data
Size: 139KB - Virtual size: 146KB

.pdata
Size: 25KB - Virtual size: 24KB

_RDATA
Size: 512B - Virtual size: 252B

.rsrc
Size: 20KB - Virtual size: 19KB

.reloc
Size: 2KB - Virtual size: 2KB