MSERT[.]exe | Triage

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General

Target

MSERT.exe
Size

127.5MB
MD5

33e1efca807a5d29ac339ece0ff9d6ab
SHA1

5c50bd2a62915a16817e871b0f3a789b94b0fdf1
SHA256

d9f6321e9b5dc3095586df28e140d8cb741033b0dc451ad4dd40a2e29719b970
SHA512

8701895635709979af1b16bfe4b27cbca8572490b873fc91cc156951ec0462d040a4802b680177d9817d3e694f541d8ec799c91a6a8cc331a749d6598f6d2480
SSDEEP

3145728:X+RIt9i+8lmvZa0e+Sg1oI+ayI05rYcLvK8y72Sq3:X3RafmSayI05rYZrE

Score

1^/10

Malware Config

Signatures

Files

MSERT.exe
.exe windows x64

6f39c4c897d80974a88aa70121805711

Code Sign

33:00:00:04:7c:1e:3f:e7:eb:45:fe:d8:bf:00:00:00:00:04:7c
Certificate

Issuer

CN=Microsoft Code Signing PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

05-05-2022 19:22

Not After

04-05-2023 19:22

Subject

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

Extended Key Usages

ExtKeyUsageCodeSigning

61:0c:52:4c:00:00:00:00:00:03
Certificate

Issuer

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

Not Before

06-07-2010 20:40

Not After

06-07-2025 20:50

Subject

CN=Microsoft Code Signing PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

b1:28:a0:92:24:d6:42:2e:b0:08:19:c6:72:cf:c5:e4:36:f7:ff:01:05:e1:8c:40:cf:29:e3:5f:63:5e:8c:ab
Signer

Actual PE Digest

b1:28:a0:92:24:d6:42:2e:b0:08:19:c6:72:cf:c5:e4:36:f7:ff:01:05:e1:8c:40:cf:29:e3:5f:63:5e:8c:ab

Digest Algorithm

sha256

PE Digest Matches

true

Signature Validations

Trusted

true

Verification

Signing Certificate

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

26-04-2023 11:46
Valid: true

Chain 1

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

CN=Microsoft Code Signing PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

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

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_FORCE_INTEGRITY
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_NET_RUN_FROM_SWAP

Imports

advapi32

GetTraceLoggerHandle
GetTraceEnableLevel
GetTraceEnableFlags
RegisterTraceGuidsW
TraceMessage
InitiateSystemShutdownExW
RegCloseKey
EventActivityIdControl
EventWriteTransfer
CloseServiceHandle
AllocateAndInitializeSid
CopySid
FreeSid
CheckTokenMembership
ConvertSidToStringSidW
GetLengthSid
GetTokenInformation
QueryServiceStatus
OpenSCManagerW
QueryServiceConfigW
OpenServiceW
RegDeleteKeyW
RegCreateKeyExW
RegSetValueExW
RegOpenKeyExW
RegDeleteValueW
RegQueryValueExW
OpenProcessToken
OpenThreadToken
EventRegister
EventUnregister
AdjustTokenPrivileges
LookupPrivilegeValueW
CreateProcessAsUserW
ConvertStringSecurityDescriptorToSecurityDescriptorW

kernel32

DecodePointer
WaitForMultipleObjects
FileTimeToSystemTime
GetExitCodeProcess
GetSystemWindowsDirectoryW
MapViewOfFile
CreateFileMappingW
CreateProcessW
VirtualLock
CreateThread
ExitThread
FreeLibraryAndExitThread
FindFirstFileExW
GetCommandLineA
GetCommandLineW
CreateFileW
DeviceIoControl
ReadFile
GetOverlappedResult
WaitForSingleObject
WriteFile
CreateEventW
GetExitCodeThread
ResumeThread
SuspendThread
GetSystemPowerStatus
FreeLibrary
Sleep
GlobalUnlock
GlobalLock
GlobalAlloc
GetDriveTypeW
GetLogicalDrives
GetSystemTimeAsFileTime
GetTimeFormatW
LocalFileTimeToFileTime
SystemTimeToFileTime
GetLocalTime
GetDiskFreeSpaceExW
GetTickCount
DeleteFileW
GetTempFileNameW
GetModuleHandleW
CloseHandle
FindClose
Process32NextW
Process32FirstW
GetCurrentProcessId
CreateToolhelp32Snapshot
GetSystemDefaultUILanguage
GetLastError
SetLastError
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
HeapFree
HeapAlloc
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
GetCurrentThread
GetCurrentThreadId
GetStdHandle
GetFileType
GetStartupInfoW
FlsAlloc
FlsGetValue
FlsSetValue
FlsFree
InitializeCriticalSectionAndSpinCount
GetProcAddress
LoadLibraryExW
CompareStringW
LCMapStringW
ExitProcess
GetModuleHandleExW
GetProcessHeap
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
WideCharToMultiByte
MultiByteToWideChar
GetFileSizeEx
SetFilePointerEx
GetStringTypeW
SetStdHandle
GetTimeZoneInformation
FlushFileBuffers
GetConsoleOutputCP
GetConsoleMode
GetModuleFileNameW
ReadConsoleW
OutputDebugStringW
HeapSize
HeapReAlloc
RaiseException
WriteConsoleW
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableW
QueryPerformanceCounter
InitializeSListHead
EncodePointer
InitializeCriticalSectionEx
UnmapViewOfFile
SetEvent
LocalFree
SetErrorMode
GetSystemTime
FileTimeToLocalFileTime
MoveFileExW
EnumResourceNamesW
RemoveDirectoryW
FindResourceW
LoadResource
LockResource
SizeofResource
lstrcmpA
LocalAlloc
FormatMessageW
CreateDirectoryW
FindFirstFileW
GetFullPathNameW
FindNextFileW
ExpandEnvironmentStringsW
GetFileAttributesW
SetFileAttributesW
LoadLibraryW
GetTempPathW
OpenEventW
OpenFileMappingW
GetSystemDirectoryW
GetNativeSystemInfo
HeapSetInformation
SetEndOfFile

user32

SetRectEmpty
SendInput
GetDesktopWindow
EnableWindow
SetTimer
KillTimer
DefWindowProcW
PostQuitMessage
DestroyWindow
DispatchMessageW
TranslateMessage
GetMessageW
CreateWindowExW
UnregisterClassW
RegisterClassW
SetClipboardData
CloseClipboard
EmptyClipboard
OpenClipboard
GetScrollBarInfo
MessageBoxW
GetForegroundWindow
DialogBoxParamW
PostMessageW
SetWindowTextW
LoadIconW
GetDlgItem
EndDialog
SendDlgItemMessageW
CheckRadioButton
CheckDlgButton
CopyRect
GetWindowTextLengthW
GetWindowTextW
GetDC
DrawTextW
ReleaseDC
GetParent
SetFocus
SetDlgItemTextW
DrawTextExW
ScreenToClient
GetKeyState
SetWindowLongPtrW
GetWindowLongPtrW
SendMessageW
DestroyIcon
LoadImageW
GetWindowRect
MapWindowPoints
ShowWindow
MoveWindow

shell32

Shell_NotifyIconW
ShellExecuteW
SHBrowseForFolderW
SHGetFolderLocation
SHGetPathFromIDListW
ShellExecuteExW

ole32

CoWaitForMultipleHandles
CoInitializeEx
CoTaskMemAlloc
CoSetProxyBlanket
CoUninitialize
CoTaskMemFree
CoCreateInstance

oleaut32

SafeArrayGetLBound
VariantClear
SysFreeString
SysAllocString
SysAllocStringLen
SysStringLen
SafeArrayGetUBound
SafeArrayGetElement

rpcrt4

UuidFromStringW

setupapi

SetupDiGetClassDevsW
SetupDiEnumDeviceInterfaces
SetupDiGetDeviceInterfaceDetailW
SetupDiDestroyDeviceInfoList

ntdll

RtlGetVersion
RtlVirtualUnwind
RtlCaptureContext
RtlNtStatusToDosError
RtlPcToFileHeader
RtlLookupFunctionEntry
RtlUnwindEx

gdi32

SelectObject

comctl32

PropertySheetW
InitCommonControlsEx

wintrust

WTHelperProvDataFromStateData
WTHelperGetProvSignerFromChain
WinVerifyTrust

crypt32

CryptMsgGetParam
CryptQueryObject
CryptMsgClose
CertFreeCertificateContext
CryptDecodeObject
CertVerifyCertificateChainPolicy

userenv

CreateEnvironmentBlock
DestroyEnvironmentBlock

Sections

.text
Size: 308KB - Virtual size: 305KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.imrsiv
Size: - Virtual size: 4B

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 108KB - Virtual size: 104KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 16KB - Virtual size: 20KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 16KB - Virtual size: 14KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 127.0MB - Virtual size: 127.0MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 4KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

6f39c4c897d80974a88aa70121805711

Code Sign

33:00:00:04:7c:1e:3f:e7:eb:45:fe:d8:bf:00:00:00:00:04:7cCertificate

Extended Key Usages

61:0c:52:4c:00:00:00:00:00:03Certificate

Key Usages

b1:28:a0:92:24:d6:42:2e:b0:08:19:c6:72:cf:c5:e4:36:f7:ff:01:05:e1:8c:40:cf:29:e3:5f:63:5e:8c:abSigner

Signature Validations

Verification

26-04-2023 11:46 Valid: true

Chain 1

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

kernel32

user32

shell32

ole32

oleaut32

rpcrt4

setupapi

ntdll

gdi32

comctl32

wintrust

crypt32

userenv

Sections

.text Size: 308KB - Virtual size: 305KB

.imrsiv Size: - Virtual size: 4B

.rdata Size: 108KB - Virtual size: 104KB

.data Size: 16KB - Virtual size: 20KB

.pdata Size: 16KB - Virtual size: 14KB

.rsrc Size: 127.0MB - Virtual size: 127.0MB

.reloc Size: 4KB - Virtual size: 2KB

33:00:00:04:7c:1e:3f:e7:eb:45:fe:d8:bf:00:00:00:00:04:7c
Certificate

61:0c:52:4c:00:00:00:00:00:03
Certificate

b1:28:a0:92:24:d6:42:2e:b0:08:19:c6:72:cf:c5:e4:36:f7:ff:01:05:e1:8c:40:cf:29:e3:5f:63:5e:8c:ab
Signer

26-04-2023 11:46
Valid: true

.text
Size: 308KB - Virtual size: 305KB

.imrsiv
Size: - Virtual size: 4B

.rdata
Size: 108KB - Virtual size: 104KB

.data
Size: 16KB - Virtual size: 20KB

.pdata
Size: 16KB - Virtual size: 14KB

.rsrc
Size: 127.0MB - Virtual size: 127.0MB

.reloc
Size: 4KB - Virtual size: 2KB