GrammarlyAddInSetup[.]exe

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General

Target

GrammarlyAddInSetup.exe
Size

14.1MB
MD5

6e7521d5ed304ee64a9eea0233b1331a
SHA1

4d6f4f35defc0385c2b375e7e63c8fc347bc5faa
SHA256

df9a7d7a30cb6d60d0c5efc1ac052d664983f04c137a1be43a477cd08660686c
SHA512

91f8dbc82c07573bc77e6752dd54a5da93e44b416e4eaac5be841e0f1c2eb11f4d2de76d5209ed308a8d5d136e26070eb63a9da3f0c3837dfc1f92d8c09f81d8
SSDEEP

393216:znc60u4ShklUsF0aNhRp138y4CZy0TZgQ9b/6NzrFKSlioSnpwZVkDw:zc696Z77b4MySjd6hNipqzZ

Score

1^/10

Malware Config

Signatures

Files

GrammarlyAddInSetup.exe
.exe windows:5 windows x86 arch:x86

d7e2fd259780271687ffca462b9e69b7

Code Sign

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

22-10-2013 12:00

Not After

22-10-2028 12:00

Subject

CN=DigiCert SHA2 Assured ID Code Signing CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0f:6f:fe:34:10:5d:3e:b0:8a:ca:62:33:e6:ce:3a:82
Certificate

Issuer

CN=DigiCert SHA2 Assured ID Code Signing CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

26-04-2021 00:00

Not After

07-06-2023 23:59

Subject

CN=Grammarly\, Inc.,OU=Grammarly\, Inc.,O=Grammarly\, Inc.,L=San Francisco,ST=California,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

0d:42:4a:e0:be:3a:88:ff:60:40:21:ce:14:00:f0:dd
Certificate

Issuer

CN=DigiCert SHA2 Assured ID Timestamping CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

01-01-2021 00:00

Not After

06-01-2031 00:00

Subject

CN=DigiCert Timestamp 2021,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

07-01-2016 12:00

Not After

07-01-2031 12:00

Subject

CN=DigiCert SHA2 Assured ID Timestamping CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

b5:22:d3:06:b7:e9:db:5c:27:a0:d6:01:98:f5:92:f5:d9:8e:bf:90:8b:b2:25:f8:46:ae:8c:e1:77:b5:59:88
Signer

Actual PE Digest

b5:22:d3:06:b7:e9:db:5c:27:a0:d6:01:98:f5:92:f5:d9:8e:bf:90:8b:b2:25:f8:46:ae:8c:e1:77:b5:59:88

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP
IMAGE_FILE_NET_RUN_FROM_SWAP

PDB Paths

C:\agent\_work\8\s\build\ship\x86\burn.pdb

Imports

advapi32

RegCloseKey
RegOpenKeyExW
OpenProcessToken
AdjustTokenPrivileges
LookupPrivilegeValueW
InitiateSystemShutdownExW
GetUserNameW
RegQueryValueExW
RegDeleteValueW
CloseEventLog
OpenEventLogW
ReportEventW
ConvertStringSecurityDescriptorToSecurityDescriptorW
DecryptFileW
CreateWellKnownSid
InitializeAcl
SetEntriesInAclW
ChangeServiceConfigW
CloseServiceHandle
ControlService
OpenSCManagerW
OpenServiceW
QueryServiceStatus
SetNamedSecurityInfoW
CheckTokenMembership
AllocateAndInitializeSid
SetEntriesInAclA
SetSecurityDescriptorGroup
SetSecurityDescriptorOwner
SetSecurityDescriptorDacl
InitializeSecurityDescriptor
RegSetValueExW
RegQueryInfoKeyW
RegEnumValueW
RegEnumKeyExW
RegDeleteKeyW
RegCreateKeyExW
GetTokenInformation
CryptDestroyHash
CryptHashData
CryptCreateHash
CryptGetHashParam
CryptReleaseContext
CryptAcquireContextW
QueryServiceConfigW

user32

PeekMessageW
PostMessageW
IsWindow
WaitForInputIdle
PostQuitMessage
GetMessageW
TranslateMessage
MsgWaitForMultipleObjects
PostThreadMessageW
GetMonitorInfoW
MonitorFromPoint
IsDialogMessageW
LoadCursorW
LoadBitmapW
SetWindowLongW
GetWindowLongW
GetCursorPos
MessageBoxW
CreateWindowExW
UnregisterClassW
RegisterClassW
DefWindowProcW
DispatchMessageW

oleaut32

VariantInit
SysAllocString
VariantClear
SysFreeString

gdi32

DeleteDC
DeleteObject
SelectObject
StretchBlt
GetObjectW
CreateCompatibleDC

shell32

CommandLineToArgvW
SHGetFolderPathW
ShellExecuteExW

ole32

CoUninitialize
CoInitializeEx
CoInitialize
StringFromGUID2
CoCreateInstance
CoTaskMemFree
CLSIDFromProgID
CoInitializeSecurity

kernel32

GetCommandLineA
GetCPInfo
GetOEMCP
CloseHandle
CreateFileW
GetProcAddress
LocalFree
HeapSetInformation
GetLastError
GetModuleHandleW
FormatMessageW
lstrlenA
lstrlenW
MultiByteToWideChar
WideCharToMultiByte
LCMapStringW
Sleep
GetLocalTime
GetModuleFileNameW
ExpandEnvironmentStringsW
GetTempPathW
GetTempFileNameW
CreateDirectoryW
GetFullPathNameW
CompareStringW
GetCurrentProcessId
WriteFile
SetFilePointer
LoadLibraryW
GetSystemDirectoryW
CreateFileA
HeapAlloc
HeapReAlloc
HeapFree
HeapSize
GetProcessHeap
FindClose
GetCommandLineW
GetCurrentDirectoryW
RemoveDirectoryW
SetFileAttributesW
GetFileAttributesW
DeleteFileW
FindFirstFileW
FindNextFileW
MoveFileExW
GetCurrentProcess
GetCurrentThreadId
InitializeCriticalSection
DeleteCriticalSection
ReleaseMutex
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
CreateProcessW
GetVersionExW
VerSetConditionMask
FreeLibrary
EnterCriticalSection
LeaveCriticalSection
GetSystemTime
GetNativeSystemInfo
GetModuleHandleExW
GetWindowsDirectoryW
GetSystemWow64DirectoryW
GetEnvironmentStringsW
VerifyVersionInfoW
GetVolumePathNameW
GetDateFormatW
GetUserDefaultUILanguage
GetSystemDefaultLangID
GetUserDefaultLangID
GetStringTypeW
ReadFile
SetFilePointerEx
DuplicateHandle
InterlockedExchange
InterlockedCompareExchange
LoadLibraryExW
CreateEventW
ProcessIdToSessionId
OpenProcess
GetProcessId
WaitForSingleObject
ConnectNamedPipe
SetNamedPipeHandleState
CreateNamedPipeW
CreateThread
GetExitCodeThread
SetEvent
WaitForMultipleObjects
InterlockedIncrement
InterlockedDecrement
ResetEvent
SetEndOfFile
SetFileTime
LocalFileTimeToFileTime
DosDateTimeToFileTime
CompareStringA
GetExitCodeProcess
SetThreadExecutionState
CopyFileExW
MapViewOfFile
UnmapViewOfFile
CreateMutexW
CreateFileMappingW
GetThreadLocale
IsValidCodePage
FindFirstFileExW
FreeEnvironmentStringsW
SetStdHandle
GetConsoleCP
GetConsoleMode
FlushFileBuffers
DecodePointer
WriteConsoleW
GetModuleHandleA
GlobalAlloc
GlobalFree
GetFileSizeEx
CopyFileW
VirtualAlloc
VirtualFree
SystemTimeToTzSpecificLocalTime
GetTimeZoneInformation
SystemTimeToFileTime
GetSystemInfo
VirtualProtect
VirtualQuery
GetComputerNameW
SetCurrentDirectoryW
GetFileType
GetACP
ExitProcess
GetStdHandle
InitializeCriticalSectionAndSpinCount
SetLastError
RtlUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
RaiseException
LoadLibraryExA

rpcrt4

UuidCreate

Sections

.text
Size: 294KB - Virtual size: 294KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 123KB - Virtual size: 123KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 2KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.wixburn
Size: 512B - Virtual size: 56B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 147KB - Virtual size: 146KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 15KB - Virtual size: 15KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

d7e2fd259780271687ffca462b9e69b7

Code Sign

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08Certificate

Extended Key Usages

Key Usages

0f:6f:fe:34:10:5d:3e:b0:8a:ca:62:33:e6:ce:3a:82Certificate

Extended Key Usages

Key Usages

0d:42:4a:e0:be:3a:88:ff:60:40:21:ce:14:00:f0:ddCertificate

Extended Key Usages

Key Usages

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15Certificate

Extended Key Usages

Key Usages

b5:22:d3:06:b7:e9:db:5c:27:a0:d6:01:98:f5:92:f5:d9:8e:bf:90:8b:b2:25:f8:46:ae:8c:e1:77:b5:59:88Signer

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

advapi32

user32

oleaut32

gdi32

shell32

ole32

kernel32

rpcrt4

Sections

.text Size: 294KB - Virtual size: 294KB

.rdata Size: 123KB - Virtual size: 123KB

.data Size: 2KB - Virtual size: 5KB

.wixburn Size: 512B - Virtual size: 56B

.rsrc Size: 147KB - Virtual size: 146KB

.reloc Size: 15KB - Virtual size: 15KB

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08
Certificate

0f:6f:fe:34:10:5d:3e:b0:8a:ca:62:33:e6:ce:3a:82
Certificate

0d:42:4a:e0:be:3a:88:ff:60:40:21:ce:14:00:f0:dd
Certificate

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15
Certificate

b5:22:d3:06:b7:e9:db:5c:27:a0:d6:01:98:f5:92:f5:d9:8e:bf:90:8b:b2:25:f8:46:ae:8c:e1:77:b5:59:88
Signer

.text
Size: 294KB - Virtual size: 294KB

.rdata
Size: 123KB - Virtual size: 123KB

.data
Size: 2KB - Virtual size: 5KB

.wixburn
Size: 512B - Virtual size: 56B

.rsrc
Size: 147KB - Virtual size: 146KB

.reloc
Size: 15KB - Virtual size: 15KB