PearsonLockDownBrowser[.]exe

Sharing

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General

Target

PearsonLockDownBrowser.exe
Size

109.2MB
MD5

80bd4e4862101e1ef514a293de6c4349
SHA1

d951fcd1ce93011c159c82473285f34aa9616d64
SHA256

ab72ebf27148299f2a60904790c02474b0233a0da61b3c94cbb149c3d71af4f0
SHA512

10b053f135d3f8e5ad7b8764a9deb1e88b1bcf9ea1d5df40346d73e9d9f177b5a470770a1a07edb741845263de56a4dceea9ee56b5d5bcd40a0c73f85ff4eeb1
SSDEEP

1572864:TWSrGaVA/G7+8XWy9vbRTuZte7/kzdnaaaTFDG+okZ+gjIzBNCSEhgqtEzN0gldM:ZaG7+wHSZteWdxaw+agczmSggRzNHfAx

Score

1^/10

Malware Config

Signatures

Files

PearsonLockDownBrowser.exe
.exe windows x86

f052f84efefe84f64ac7fab273eb8464

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

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5a
Certificate

Issuer

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

Not Before

21/09/2022, 00:00

Not After

21/11/2033, 23:59

Subject

CN=DigiCert Timestamp 2022 - 2,O=DigiCert,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

32:87:c6:62:41:6a:6b:6c:b8:fa:9f:bc:67:ed:e9:f7:8d:f1:bb:40:1e:45:2e:36:58:2a:fb:d4:f8:f3:47:87
Signer

Actual PE Digest

32:87:c6:62:41:6a:6b:6c:b8:fa:9f:bc:67:ed:e9:f7:8d:f1:bb:40:1e:45:2e:36:58:2a:fb:d4:f8:f3:47:87

Digest Algorithm

sha256

PE Digest Matches

true

Signature Validations

Trusted

true

Verification

Signing Certificate

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

14/11/2022, 21:30
Valid: true

Chain 1

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

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

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

Chain 2

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

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

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

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

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

Imports

comctl32

ord17

kernel32

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

user32

PeekMessageW
DispatchMessageW
TranslateMessage
LoadIconW
SetWindowLongW
GetWindowLongW
MessageBoxW
GetWindowRect
SetWindowTextW
SetForegroundWindow
SetActiveWindow
SetDlgItemTextW
GetDlgItem
EndDialog
wsprintfW
WaitForInputIdle
DialogBoxIndirectParamW
MoveWindow
DrawIcon
SystemParametersInfoW
GetWindow
FillRect
GetSysColor
MapWindowPoints
RemovePropW
GetPropW
SetPropW
EndPaint
BeginPaint
EnableMenuItem
GetSystemMetrics
SetFocus
ExitWindowsEx
CharUpperW
wsprintfA
CallWindowProcW
CreateWindowExW
PostMessageW
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
SendMessageW

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
SHGetMalloc
SHGetFolderPathW
SHGetPathFromIDListW
SHGetSpecialFolderLocation

ole32

CoInitializeEx
CreateStreamOnHGlobal
CoInitializeSecurity
CoCreateInstance
CoTaskMemAlloc
CoTaskMemRealloc
CoTaskMemFree
CoUninitialize

oleaut32

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

shlwapi

PathFileExistsW

rpcrt4

UuidCreate
RpcStringFreeW
UuidToStringW

gdiplus

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

Sections

.text
Size: 428KB - Virtual size: 428KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 101KB - Virtual size: 101KB

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: 98KB - Virtual size: 97KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

f052f84efefe84f64ac7fab273eb8464

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

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5aCertificate

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

32:87:c6:62:41:6a:6b:6c:b8:fa:9f:bc:67:ed:e9:f7:8d:f1:bb:40:1e:45:2e:36:58:2a:fb:d4:f8:f3:47:87Signer

Signature Validations

Verification

14/11/2022, 21:30 Valid: true

Chain 1

Chain 2

Headers

DLL Characteristics

File Characteristics

Imports

comctl32

kernel32

user32

gdi32

advapi32

shell32

ole32

oleaut32

shlwapi

rpcrt4

gdiplus

Sections

.text Size: 428KB - Virtual size: 428KB

.rdata Size: 101KB - Virtual size: 101KB

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

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

.reloc Size: 98KB - Virtual size: 97KB

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

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5a
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

32:87:c6:62:41:6a:6b:6c:b8:fa:9f:bc:67:ed:e9:f7:8d:f1:bb:40:1e:45:2e:36:58:2a:fb:d4:f8:f3:47:87
Signer

14/11/2022, 21:30
Valid: true

.text
Size: 428KB - Virtual size: 428KB

.rdata
Size: 101KB - Virtual size: 101KB

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

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

.reloc
Size: 98KB - Virtual size: 97KB