Respondus 4[.]0[.]exe

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General

Target

Respondus 4.0.exe
Size

14.7MB
MD5

2831b604abfb8fae0813846e8b22e1d7
SHA1

13869acd606f2be8d84e606a929d7c47d7af6049
SHA256

285151eb19c42c772fba7462f48f86c3e63a00a6a51750c3d0a98ba31904b614
SHA512

753f328001124de7bb2be547475454489d86b461245a064d0ff06c6f8e00ccfb30d5756500a35ff3ac1815540075ebbe92250c7d219065487b06ee14c556f710
SSDEEP

393216:jc54WlxiOyr7cHeyX6P6pIkQCw6lyBygPmm+R8CIE:B/OyPoeyqe3QBygemY

Score

1^/10

Malware Config

Signatures

Files

Respondus 4.0.exe
.exe windows:5 windows x86 arch:x86

42669f99775f2f541a042cacf40fa06b

Code Sign

05:9b:1b:57:9e:8e:21:32:e2:39:07:bd:a7:77:75:5c
Certificate

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

01/08/2013, 12:00

Not After

15/01/2038, 12:00

Subject

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9
Certificate

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

29/04/2021, 00:00

Not After

28/04/2036, 23:59

Subject

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

08:66:19:4d:e6:dc:b2:05:71:08:30:14:06:23:06:ae
Certificate

Issuer

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Not Before

26/07/2021, 00:00

Not After

08/09/2023, 23:59

Subject

CN=Respondus\, Inc.,O=Respondus\, Inc.,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16
Certificate

Issuer

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Not Before

14/07/2023, 00:00

Not After

13/10/2034, 23:59

Subject

CN=DigiCert Timestamp 2023,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

23/03/2022, 00:00

Not After

22/03/2037, 23:59

Subject

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

Issuer

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

Not Before

01/08/2022, 00:00

Not After

09/11/2031, 23:59

Subject

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

ef:4b:86:84:56:b3:f7:3b:40:3c:b9:5a:ed:fe:79:57:70:4d:43:98:b4:31:2a:51:e7:e6:b0:22:c7:db:4e:40
Signer

Actual PE Digest

ef:4b:86:84:56:b3:f7:3b:40:3c:b9:5a:ed:fe:79:57:70:4d:43:98:b4:31:2a:51:e7:e6:b0:22:c7:db:4e:40

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

PDB Paths

C:\CodeBases\isdev\redist\Language Independent\i386\ISP\setup.pdb

Imports

comctl32

ord17

kernel32

CompareStringW
CompareStringA
GetSystemDefaultLangID
GetUserDefaultLangID
ExpandEnvironmentStringsW
GetCurrentDirectoryW
FileTimeToLocalFileTime
GetFileTime
SetFileAttributesW
HeapAlloc
HeapFree
GetProcessHeap
CopyFileW
GetSystemDefaultUILanguage
GlobalAlloc
LocalFree
MulDiv
GetVersionExW
InterlockedDecrement
InterlockedIncrement
GetTempPathW
CreateFileW
LoadLibraryA
GetSystemDirectoryA
FindResourceW
GlobalUnlock
GlobalLock
IsBadReadPtr
LockResource
LoadResource
MultiByteToWideChar
MoveFileExW
WriteProcessMemory
VirtualProtectEx
GetWindowsDirectoryW
GetSystemDirectoryW
FlushInstructionCache
SetThreadContext
GetThreadContext
ResumeThread
TerminateProcess
ExitProcess
MoveFileW
GetPrivateProfileIntW
LoadLibraryW
lstrcatW
lstrcpynW
lstrcmpiW
LoadLibraryExW
FreeLibrary
FindResourceExW
UnmapViewOfFile
MapViewOfFile
CreateFileMappingW
VirtualQuery
GetSystemInfo
GetSystemTimeAsFileTime
CreateEventW
CreateMutexW
ReleaseMutex
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
QueryPerformanceFrequency
FreeResource
GetPrivateProfileSectionNamesA
GetPrivateProfileStringA
GetPrivateProfileIntA
lstrcatA
lstrcmpiA
FlushFileBuffers
WriteConsoleW
SetStdHandle
OutputDebugStringW
SetFilePointerEx
GetConsoleMode
GetConsoleCP
SetErrorMode
RaiseException
WriteFile
SetFilePointer
GetFileSize
GetFileAttributesW
GetDiskFreeSpaceExW
GetDiskFreeSpaceW
FindFirstFileW
FindClose
CreateDirectoryW
VerLanguageNameW
IsValidLocale
GetLocaleInfoW
WideCharToMultiByte
lstrcpyA
GetTickCount
ExitThread
CreateThread
GetExitCodeProcess
ReadFile
GetCommandLineW
SizeofResource
FormatMessageW
GetCurrentProcess
WaitForSingleObject
SetLastError
GetLastError
DuplicateHandle
RemoveDirectoryW
DeleteFileW
SetCurrentDirectoryW
lstrlenW
lstrcpyW
GetProcAddress
GetModuleHandleW
GetModuleFileNameW
CreateProcessW
Sleep
CloseHandle
GlobalFree
ReadConsoleW
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetFileType
HeapReAlloc
GetStdHandle
HeapSize
GetModuleHandleExW
GetStringTypeW
GetCurrentThreadId
GetCPInfo
GetOEMCP
IsValidCodePage
GetStartupInfoW
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
SetUnhandledExceptionFilter
UnhandledExceptionFilter
GetACP
IsProcessorFeaturePresent
IsDebuggerPresent
RtlUnwind
FindNextFileW
lstrcmpW
GetCurrentThread
QueryPerformanceCounter
lstrcmpA
SystemTimeToFileTime
ResetEvent
SetEvent
GetDateFormatW
GetTimeFormatW
GetTempFileNameW
CompareFileTime
SetFileTime
OpenProcess
GetProcessTimes
InterlockedExchange
LoadLibraryExA
EnterCriticalSection
LeaveCriticalSection
EncodePointer
DecodePointer
LCMapStringW
GetVersion
GetCurrentProcessId
GetLocalTime
lstrlenA

user32

DialogBoxIndirectParamW
MoveWindow
SendMessageW
WaitForInputIdle
wsprintfW
GetDlgItem
SetDlgItemTextW
EndDialog
SetForegroundWindow
SetWindowTextW
GetWindowRect
MessageBoxW
GetWindowLongW
SetWindowLongW
LoadIconW
TranslateMessage
DispatchMessageW
PeekMessageW
SetActiveWindow
SystemParametersInfoW
GetWindow
FillRect
GetSysColor
MapWindowPoints
RemovePropW
GetPropW
SetPropW
EndPaint
BeginPaint
EnableMenuItem
GetSystemMetrics
SetFocus
ExitWindowsEx
CharUpperW
wsprintfA
CallWindowProcW
CreateWindowExW
DrawIcon
DrawTextW
UpdateWindow
GetWindowDC
InvalidateRect
DrawFocusRect
CopyRect
InflateRect
EnumChildWindows
GetClassNameW
MapDialogRect
RegisterClassExW
GetDlgItemTextW
IntersectRect
MonitorFromPoint
DefWindowProcW
GetMessageW
LoadStringW
LoadImageW
ReleaseDC
GetDC
CreateDialogParamW
GetParent
GetWindowTextW
CharNextW
GetDesktopWindow
GetClientRect
IsWindowEnabled
CreateDialogIndirectParamW
IsWindowVisible
IsDialogMessageW
FindWindowExW
ScreenToClient
EnableWindow
MsgWaitForMultipleObjects
SendDlgItemMessageW
SetWindowPos
ShowWindow
DestroyWindow
IsWindow
PostMessageW

gdi32

SetTextColor
SetBkMode
SetBkColor
SaveDC
RestoreDC
CreateSolidBrush
UnrealizeObject
CreateHalftonePalette
GetDIBColorTable
SelectPalette
SelectObject
RealizePalette
GetSystemPaletteEntries
GetDeviceCaps
DeleteDC
CreatePalette
CreateCompatibleDC
BitBlt
GetObjectW
TranslateCharsetInfo
DeleteObject
CreateFontIndirectW
CreateCompatibleBitmap
CreateDCW
CreatePatternBrush
GetStockObject
GetTextExtentPoint32W
DeleteMetaFile
CreateDIBitmap
CreateBitmap
CreateRectRgn
PatBlt
PlayMetaFile
SelectClipRgn
SetMapMode
SetMetaFileBitsEx
SetPixel
StretchBlt
SetStretchBltMode
SetViewportExtEx
SetViewportOrgEx
SetWindowExtEx
SetWindowOrgEx
TextOutW

advapi32

RegEnumValueW
RegQueryValueExW
SetEntriesInAclW
RegQueryInfoKeyW
RegEnumKeyExW
RegDeleteValueW
RegDeleteKeyW
SetSecurityDescriptorOwner
SetSecurityDescriptorGroup
SetSecurityDescriptorDacl
InitializeSecurityDescriptor
CreateWellKnownSid
RegSetValueExW
RegOpenKeyExW
RegCreateKeyExW
RegCloseKey
RegOpenKeyW
OpenProcessToken
AdjustTokenPrivileges
AllocateAndInitializeSid
FreeSid
LookupPrivilegeValueW
RegEnumKeyW
OpenThreadToken
GetTokenInformation
EqualSid

shell32

ShellExecuteExW
SHGetSpecialFolderLocation
SHGetMalloc
SHGetPathFromIDListW

ole32

CoTaskMemFree
CoTaskMemRealloc
CoTaskMemAlloc
CoCreateInstance
CoInitializeSecurity
CreateStreamOnHGlobal
CoInitializeEx
CoUninitialize

oleaut32

VarUI4FromStr
VarBstrCmp
VariantChangeType
VarBstrCat
SysAllocString
SysFreeString
SysStringLen
SysAllocStringLen
SysReAllocStringLen
GetErrorInfo
SysStringByteLen
VariantInit
SysAllocStringByteLen
VariantClear

shlwapi

PathFileExistsW

rpcrt4

UuidCreate
RpcStringFreeW
UuidToStringW

gdiplus

GdipFree
GdipDrawImageRectI
GdipSetInterpolationMode
GdipDeleteGraphics
GdipCreateFromHDC
GdipCreateBitmapFromResource
GdipCreateBitmapFromStreamICM
GdipCreateBitmapFromFile
GdipCreateBitmapFromStream
GdipDisposeImage
GdipCloneImage
GdiplusStartup
GdipGetImageWidth
GdipGetImageHeight
GdipAlloc

Sections

.text
Size: 421KB - Virtual size: 421KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 99KB - Virtual size: 98KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 9KB - Virtual size: 18KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 96KB - Virtual size: 96KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

42669f99775f2f541a042cacf40fa06b

Code Sign

05:9b:1b:57:9e:8e:21:32:e2:39:07:bd:a7:77:75:5cCertificate

Key Usages

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9Certificate

Extended Key Usages

Key Usages

08:66:19:4d:e6:dc:b2:05:71:08:30:14:06:23:06:aeCertificate

Extended Key Usages

Key Usages

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16Certificate

Extended Key Usages

Key Usages

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5bCertificate

Extended Key Usages

Key Usages

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5aCertificate

Key Usages

ef:4b:86:84:56:b3:f7:3b:40:3c:b9:5a:ed:fe:79:57:70:4d:43:98:b4:31:2a:51:e7:e6:b0:22:c7:db:4e:40Signer

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

comctl32

kernel32

user32

gdi32

advapi32

shell32

ole32

oleaut32

shlwapi

rpcrt4

gdiplus

Sections

.text Size: 421KB - Virtual size: 421KB

.rdata Size: 99KB - Virtual size: 98KB

.data Size: 9KB - Virtual size: 18KB

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

.reloc Size: 96KB - Virtual size: 96KB

05:9b:1b:57:9e:8e:21:32:e2:39:07:bd:a7:77:75:5c
Certificate

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9
Certificate

08:66:19:4d:e6:dc:b2:05:71:08:30:14:06:23:06:ae
Certificate

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16
Certificate

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

ef:4b:86:84:56:b3:f7:3b:40:3c:b9:5a:ed:fe:79:57:70:4d:43:98:b4:31:2a:51:e7:e6:b0:22:c7:db:4e:40
Signer

.text
Size: 421KB - Virtual size: 421KB

.rdata
Size: 99KB - Virtual size: 98KB

.data
Size: 9KB - Virtual size: 18KB

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

.reloc
Size: 96KB - Virtual size: 96KB