bd9a1b26535dd59bc0676fc00345ff792ee6c0c93342b7be9b2f135ed124bc79

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General

Target
bd9a1b26535dd59bc0676fc00345ff792ee6c0c93342b7be9b2f135ed124bc79
Size 4.7MB
Sample260706-p1zeesbs9p
SHA256 bd9a1b26535dd59bc0676fc00345ff792ee6c0c93342b7be9b2f135ed124bc79
MD5 a5deaca4b98c8222dba6868e248b5e20
SHA1 5953f6848579c999cf6812b9ffa2b857552a17f9
SHA512 50690746ccb993ef5fd6274e64cd7541488e182f6b3f3da86ae030263ef9ef5a1947c07f8f98fa3e6c69635988065aa7af1c6b8041c2b2f033f93195dfecbf11
SSDEEP 98304:k6666666666666666666666666666666x666666666666666fwwwwwwwwwwwwwwH:fupoxQtnXORRoSAc7O/LT
TLSH
T1EC368E82F3102074C846A9F1ED2CAB765F143D6B97F287EBBAD82C611B745C1363974A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

5^/10

Malware Config

Signatures

Codesign digest Mismatch 1 IoCs

File was altered after it was signed.

resource
bd9a1b26535dd59bc0676fc00345ff792ee6c0c93342b7be9b2f135ed124bc79

File Explorer

bd9a1b26535dd59bc0676fc00345ff792ee6c0c93342b7be9b2f135ed124bc79

.exe 4.7MB

bd9a1b26535dd59bc0676fc00345ff792ee6c0c93342b7be9b2f135ed124bc79

IMPHASH 4ae2ee92b57cb4f36b39b372c086cf9a
SHA256 bd9a1b26535dd59bc0676fc00345ff792ee6c0c93342b7be9b2f135ed124bc79
MD5 a5deaca4b98c8222dba6868e248b5e20
SHA1 5953f6848579c999cf6812b9ffa2b857552a17f9
SHA512 50690746ccb993ef5fd6274e64cd7541488e182f6b3f3da86ae030263ef9ef5a1947c07f8f98fa3e6c69635988065aa7af1c6b8041c2b2f033f93195dfecbf11
SSDEEP 98304:k6666666666666666666666666666666x666666666666666fwwwwwwwwwwwwwwH:fupoxQtnXORRoSAc7O/LT
TLSH
T1EC368E82F3102074C846A9F1ED2CAB765F143D6B97F287EBBAD82C611B745C1363974A
MD5 SHA1 SHA512 SSDEEP TLSH

Codesign digest Mismatch

File was altered after it was signed.

PE Signature issue

Digest

55:13:16:c9:5d:19:18:29:f1:2e:52:b9:90:93:05:9a:11:d9:66:dc:b9:d6:9f:67:12:51:8d:7d:fc:25:af:6b

Digest Algorithm

sha256

PE Digests Matches

Not matched

Trusted

Signing Certificate

SERIALNUMBER=916 368 127,CN=Opera Norway AS,O=Opera Norway AS,L=Oslo,ST=Oslo,C=NO,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.3=#13024e4f

Chains

Jan 14, 2026

SERIALNUMBER=916 368 127,CN=Opera Norway AS,O=Opera Norway AS,L=Oslo,ST=Oslo,C=NO,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.3=#13024e4f

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

SERIALNUMBER=916 368 127,CN=Opera Norway AS,O=Opera Norway AS,L=Oslo,ST=Oslo,C=NO,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.3=#13024e4f

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

Subject

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

Serial Number

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

Issuer

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

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Ext Key Usages

ExtKeyUsageCodeSigning

Revocation Status

Not revoked

Timespan

Apr 29, 2021 - Apr 28, 2036

Subject

SERIALNUMBER=916 368 127,CN=Opera Norway AS,O=Opera Norway AS,L=Oslo,ST=Oslo,C=NO,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.3=#13024e4f

Serial Number

09:1d:ef:af:87:97:e7:44:8d:ee:71:e4:39:1d:17:cc

Issuer

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

Key Usages

KeyUsageDigitalSignature

Ext Key Usages

ExtKeyUsageCodeSigning

Revocation Status

Not revoked

Timespan

May 17, 2024 - May 29, 2026

Subject

CN=DigiCert SHA256 RSA4096 Timestamp Responder 2025 1,O=DigiCert\, Inc.,C=US

Serial Number

0a:80:ef:18:4b:8d:f1:05:82:d1:c4:76:a7:95:74:68

Issuer

CN=DigiCert Trusted G4 TimeStamping RSA4096 SHA256 2025 CA1,O=DigiCert\, Inc.,C=US

Key Usages

KeyUsageDigitalSignature

Ext Key Usages

ExtKeyUsageTimeStamping

Revocation Status

Not revoked

Timespan

Jun 4, 2025 - Sep 3, 2036

Subject

CN=DigiCert Trusted G4 TimeStamping RSA4096 SHA256 2025 CA1,O=DigiCert\, Inc.,C=US

Serial Number

0d:c7:ac:57:05:ff:21:99:2e:40:43:22:0c:3a:49:86

Issuer

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

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Ext Key Usages

ExtKeyUsageTimeStamping

Revocation Status

Not revoked

Timespan

May 7, 2025 - Jan 14, 2038

Subject

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

Serial Number

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

Issuer

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

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Revocation Status

Not revoked

Timespan

Aug 1, 2022 - Nov 9, 2031

Minor OS version

Major OS version

Entry point

3023744

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE 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_32BIT_MACHINE

PDB paths

browser_assistant.exe.pdb

advapi32

AccessCheck AdjustTokenPrivileges AllocateAndInitializeSid BuildExplicitAccessWithNameW BuildSecurityDescriptorW BuildTrusteeWithSidW CheckTokenMembership ConvertSidToStringSidW ConvertStringSecurityDescriptorToSecurityDescriptorW ConvertStringSidToSidW CreateProcessAsUserW CreateProcessWithTokenW CryptAcquireContextW CryptCreateHash CryptDestroyHash CryptGetHashParam CryptHashData CryptReleaseContext DuplicateToken DuplicateTokenEx EqualSid FreeSid GetExplicitEntriesFromAclW GetLengthSid GetNamedSecurityInfoW GetSecurityDescriptorControl GetSecurityDescriptorDacl GetSecurityDescriptorGroup GetSecurityDescriptorOwner GetSecurityDescriptorSacl GetSidSubAuthority GetSidSubAuthorityCount GetTokenInformation GetUserNameW ImpersonateNamedPipeClient InitializeAcl InitializeSecurityDescriptor IsValidAcl IsValidSecurityDescriptor IsValidSid LookupPrivilegeValueW OpenProcessToken RegCloseKey RegCreateKeyExW RegDeleteKeyExW RegDeleteKeyW RegDeleteValueA RegDeleteValueW RegEnumKeyExW RegEnumValueW RegGetKeySecurity RegNotifyChangeKeyValue RegOpenKeyExW RegQueryInfoKeyW RegQueryValueExA RegQueryValueExW RegSetValueExA RegSetValueExW RevertToSelf SetEntriesInAclW SetNamedSecurityInfoW SetSecurityDescriptorDacl SetSecurityInfo

dbghelp

MiniDumpWriteDump SymCleanup SymFromAddr SymGetLineFromAddr64 SymGetSearchPathW SymInitialize SymSetOptions SymSetSearchPathW

gdi32

CreateRectRgn GetStockObject

oleaut32

SysAllocString SysFreeString VarUI4FromStr VariantClear VariantCopy

shell32

CommandLineToArgvW ord680 SHChangeNotify SHGetFolderPathW SHGetKnownFolderPath SHQueryUserNotificationState ShellExecuteExW ShellExecuteW Shell_NotifyIconW

shlwapi

PathMatchSpecW SHDeleteKeyW

user32

AllowSetForegroundWindow CharLowerW CharNextW CharUpperW CreatePopupMenu CreateWindowExW DefWindowProcW DestroyMenu DestroyWindow DispatchMessageW EnableWindow FindWindowExW FindWindowW GetActiveWindow GetClientRect GetDesktopWindow GetForegroundWindow GetMessageW GetQueueStatus GetShellWindow GetWindowLongW GetWindowThreadProcessId InsertMenuItemW KillTimer LoadIconW MessageBoxW MsgWaitForMultipleObjectsEx PeekMessageW PostMessageW PostQuitMessage RegisterClassExW RegisterClassW SendInput SendNotifyMessageW SetForegroundWindow SetTimer SetWindowLongW SetWindowPos SetWindowRgn SystemParametersInfoW TrackPopupMenuEx TranslateMessage UnregisterClassW WaitForInputIdle wsprintfW

version

GetFileVersionInfoSizeW GetFileVersionInfoW VerQueryValueW

wininet

HttpOpenRequestW HttpQueryInfoW HttpSendRequestW InternetCloseHandle InternetConnectW InternetOpenW

ws2_32

WSACleanup WSACloseEvent WSACreateEvent WSAEnumNetworkEvents WSAEventSelect WSAGetLastError WSAIoctl WSAResetEvent WSASetLastError WSAStartup WSAWaitForMultipleEvents __WSAFDIsSet accept bind closesocket connect freeaddrinfo getaddrinfo getpeername getsockname getsockopt htonl htons inet_ntop inet_pton ioctlsocket listen ntohs recv select send setsockopt socket

kernel32

AcquireSRWLockExclusive AcquireSRWLockShared AddVectoredExceptionHandler AssignProcessToJobObject CancelIo CloseHandle CompareStringOrdinal CompareStringW ConnectNamedPipe CopyFileW CreateDirectoryW CreateEventW CreateFileA CreateFileMappingW CreateFileW CreateIoCompletionPort CreateMutexW CreateNamedPipeW CreatePipe CreateProcessW CreateSemaphoreW CreateThread DecodePointer DeleteCriticalSection DeleteFileW DeleteProcThreadAttributeList DeviceIoControl DisconnectNamedPipe DuplicateHandle EncodePointer EnterCriticalSection EnumSystemLocalesW ExitProcess ExitThread ExpandEnvironmentStringsW FileTimeToSystemTime FindClose FindFirstFileExW FindNextFileW FindResourceExW FindResourceW FlsAlloc FlsFree FlsGetValue FlsSetValue FlushFileBuffers FlushViewOfFile FormatMessageA FormatMessageW FreeEnvironmentStringsW FreeLibrary FreeLibraryAndExitThread GetACP GetCPInfo GetCommandLineA GetCommandLineW GetConsoleMode GetConsoleOutputCP GetCurrentDirectoryW GetCurrentProcess GetCurrentProcessId GetCurrentThread GetCurrentThreadId GetDateFormatW GetDiskFreeSpaceExW GetDriveTypeW GetEnvironmentStringsW GetEnvironmentVariableA GetEnvironmentVariableW GetExitCodeProcess GetFileAttributesExW GetFileAttributesW GetFileInformationByHandle GetFileInformationByHandleEx GetFileSizeEx GetFileTime GetFileType GetFullPathNameW GetGeoInfoW GetHandleInformation GetLastError GetLocalTime GetLocaleInfoW GetLogicalDrives GetLogicalProcessorInformation GetLogicalProcessorInformationEx GetLongPathNameW GetModuleFileNameW GetModuleHandleA GetModuleHandleExA GetModuleHandleExW GetModuleHandleW GetNamedPipeClientProcessId GetNamedPipeServerProcessId GetNativeSystemInfo GetOEMCP GetProcAddress GetProcessHandleCount GetProcessHeap GetProcessId GetProcessMitigationPolicy GetProcessTimes GetProductInfo GetQueuedCompletionStatus GetStartupInfoW GetStdHandle GetStringTypeW GetSystemDefaultLCID GetSystemDirectoryW GetSystemInfo GetSystemPowerStatus GetSystemTime GetSystemTimeAsFileTime GetSystemTimePreciseAsFileTime GetTempPathW GetThreadContext GetThreadId GetThreadLocale GetThreadPreferredUILanguages GetThreadPriority GetTickCount GetTimeFormatW GetTimeZoneInformation GetUserDefaultLCID GetUserGeoID GetVersionExW GetWindowsDirectoryW GlobalMemoryStatusEx HeapAlloc HeapDestroy HeapFree HeapReAlloc HeapSize InitOnceExecuteOnce InitializeConditionVariable InitializeCriticalSection InitializeCriticalSectionAndSpinCount InitializeCriticalSectionEx InitializeProcThreadAttributeList InitializeSListHead InitializeSRWLock IsDebuggerPresent IsProcessorFeaturePresent IsValidCodePage IsValidLocale IsWow64Process K32GetModuleInformation K32GetPerformanceInfo K32GetProcessMemoryInfo LCMapStringW LeaveCriticalSection LoadLibraryA LoadLibraryExA LoadLibraryExW LoadLibraryW LoadResource LocalAlloc LocalFree LockFileEx LockResource MapViewOfFile MoveFileExW MoveFileW MultiByteToWideChar OpenEventW OpenMutexW OpenProcess OutputDebugStringA OutputDebugStringW PeekNamedPipe PostQueuedCompletionStatus QueryFullProcessImageNameW QueryPerformanceCounter QueryPerformanceFrequency QueryThreadCycleTime RaiseException ReadConsoleW ReadFile ReadProcessMemory RegisterWaitForSingleObject ReleaseMutex ReleaseSRWLockExclusive ReleaseSRWLockShared ReleaseSemaphore RemoveDirectoryW RemoveVectoredExceptionHandler ReplaceFileW ResetEvent ResumeThread RtlCaptureStackBackTrace RtlUnwind SetConsoleCtrlHandler SetEndOfFile SetEnvironmentVariableW SetEvent SetFileAttributesW SetFileInformationByHandle SetFilePointerEx SetHandleInformation SetInformationJobObject SetLastError SetNamedPipeHandleState SetProcessShutdownParameters SetStdHandle SetThreadInformation SetThreadPriority SetUnhandledExceptionFilter SizeofResource Sleep SleepConditionVariableSRW SleepEx SuspendThread SwitchToThread SystemTimeToFileTime SystemTimeToTzSpecificLocalTime TerminateProcess TlsAlloc TlsFree TlsGetValue TlsSetValue TransactNamedPipe TryAcquireSRWLockExclusive TzSpecificLocalTimeToSystemTime UnhandledExceptionFilter UnlockFileEx UnmapViewOfFile UnregisterWaitEx UpdateProcThreadAttribute VerSetConditionMask VerifyVersionInfoW VirtualAlloc VirtualFree VirtualProtect VirtualQuery VirtualQueryEx WaitForMultipleObjects WaitForSingleObject WaitForSingleObjectEx WaitNamedPipeW WakeAllConditionVariable WakeConditionVariable WerRegisterRuntimeExceptionModule WideCharToMultiByte WriteConsoleW WriteFile lstrcmpiW lstrlenW

ole32

CoAllowSetForegroundWindow CoCreateInstance CoInitializeEx CoInitializeSecurity CoRegisterInitializeSpy CoRevokeInitializeSpy CoSetProxyBlanket CoTaskMemAlloc CoTaskMemFree CoTaskMemRealloc CoUninitialize IIDFromString OleCreate OleInitialize OleSetContainedObject OleUninitialize StringFromGUID2

bcrypt

BCryptCloseAlgorithmProvider BCryptCreateHash BCryptDestroyHash BCryptFinishHash BCryptGenRandom BCryptHashData BCryptOpenAlgorithmProvider

crypt32

CertAddCertificateContextToStore CertCloseStore CertCreateCertificateChainEngine CertEnumCertificatesInStore CertFindCertificateInStore CertFindExtension CertFreeCertificateChain CertFreeCertificateChainEngine CertFreeCertificateContext CertGetCertificateChain CertGetNameStringW CertOpenStore CryptBinaryToStringW CryptDecodeObjectEx CryptQueryObject CryptStringToBinaryW PFXImportCertStore

ntdll

NtDeleteKey NtQueryObject RtlGetLastNtStatus

winmm

timeBeginPeriod timeEndPeriod timeGetTime

userenv

CreateEnvironmentBlock DestroyEnvironmentBlock

api-ms-win-core-winrt-l1-1-0

RoInitialize RoUninitialize

winhttp

WinHttpAddRequestHeaders WinHttpCloseHandle WinHttpConnect WinHttpCrackUrl WinHttpOpen WinHttpOpenRequest WinHttpQueryHeaders WinHttpReadData WinHttpReceiveResponse WinHttpSendRequest WinHttpSetTimeouts WinHttpWriteData

Name

.text

Size

3.8MB

Virtual Size

3.8MB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

584KB

Virtual Size

583KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

20KB

Virtual Size

111KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.fptable

Size

512B

Virtual Size

128B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rodata

Size

512B

Virtual Size

192B

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.tls

Size

512B

Virtual Size

389B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

CPADinfo

Size

512B

Virtual Size

48B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

malloc_h

Size

1024B

Virtual Size

697B

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rsrc

Size

113KB

Virtual Size

113KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

113KB

Virtual Size

113KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

bd9a1b26535dd59bc0676fc00345ff792ee6c0c93342b7be9b2f135ed124bc79

PE Signature issue

advapi32

dbghelp

gdi32

oleaut32

shell32

shlwapi

user32

version

wininet

ws2_32

kernel32

ole32

bcrypt

crypt32

ntdll

winmm

userenv

api-ms-win-core-winrt-l1-1-0

winhttp

generic